Compare commits
10 Commits
| Author | SHA1 | Date | |
|---|---|---|---|
| 614ac34883 | |||
| 3fb090a620 | |||
| 77a8322aad | |||
| e57caf3080 | |||
| 0e0f076fc4 | |||
| 64b225f26d | |||
| 898bdf7f38 | |||
| 02152b44bf | |||
| 0b7a1cf46d | |||
| becba13ed9 |
+122
@@ -0,0 +1,122 @@
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package main
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import (
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"encoding/json"
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"fmt"
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"code.yun.ink/pkg/structx"
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"github.com/shopspring/decimal"
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)
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func main() {
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// demo1()
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demo2()
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}
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func demo2() {
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str := `{
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"appid": "1023538",
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"total_fee": "100",
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"key": "fIIu2UQb6jvdkOGqIx1zvXzc4grCkjb6",
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"payment": "alipay.qrcode",
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"notify_url": "http://admin-v2.hk.blueoceantech.co/api/demo",
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"sign": "12345"
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}`
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p := &PayReq{}
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m := map[string]any{}
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json.Unmarshal([]byte(str), &m)
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ch2, err := structx.NewStructProcessor(structx.AllowUnknownFields()).AttactToStructAny(p, m)
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fmt.Println(ch2, err)
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fmt.Printf("p:%+v\n", p)
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ch1, err := structx.AttactToStructAny(p, m)
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fmt.Println(ch1, err)
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fmt.Printf("p:%+v\n", p)
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}
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type PaymentMethod string
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type Provider string
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type OrderWallet string
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type CoinType string
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type PayReq struct {
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Appid int64 `json:"appid"` // 必填 appid,由商户后台获取,或者登录获取
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StoreId int64 `json:"storeid"` // 选填 storeid,指定门店交易
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OutTradeNo string `json:"out_trade_no"` // 选填 商户自身订单号
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Payment PaymentMethod `json:"payment"` // 必填 支付方式
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H5RedirectUrl string `json:"h5_redirect_url"` // 选填 微信香港钱包公众号支付跳转url,支付宝WAP跳转ur
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SpbillCreateIp string `json:"spbill_create_ip"` // 选填 客户IP 支付用户的IP,微信H5(MWEB)必传
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TotalFee decimal.Decimal `json:"total_fee"` // 必填 订单金额(单位分)
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Sign string `json:"sign"` // 必填 签名
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Provider Provider `json:"provider"` // 选填 支付提供方:alipay wechat [可传但需过滤]
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Code string `json:"code"` // 选填 支付授权码(micropay必填)
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NotifyUrl string `json:"notify_url"` // 选填 异步通知url
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// OpenId string `json:"open_id"` // 选填 openid 机构商户appid下的唯一标识。openid和sub_openid可以选传其中之一
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SubAppid string `json:"sub_appid"` // 选填 子商户公众号的微信APPID
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SubOpenid string `json:"sub_openid"` // 选填 openid 商户公众号、小程序获取的openid 用户在子商户appid下的唯一标识。openid和sub_openid可以选传其中之一
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Body string `json:"body"` // 选填 商品名称(显示)
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Attach string `json:"attach"` // 选填 附加数据(客户自己的)
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Wallet OrderWallet `json:"wallet"` // 选填 钱包(支付宝需要)
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Currency CoinType `json:"currency"` // 选填 客户的下单币种(需要根据不同平台指定默认值)
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TimeoutSecond int64 `json:"timeout_second"` // 选填 客户的下单超时时间(需要根据不同平台指定默认值)
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}
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func demo1() {
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p1 := &Person{}
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updateMap1 := map[string]any{
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"name": "Alice",
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"age": 30,
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"active": true,
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}
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p2 := &Person2{}
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p3 := &Person2{}
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p4 := &Person2{}
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p5 := &struct {
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Name string `json:"name"`
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Age int `json:"age"`
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Active bool `json:"active"`
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}{}
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p6 := &decimal.Decimal{}
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ch1, err := structx.AttactToStructAny(p1, updateMap1)
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fmt.Println(ch1, err)
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fmt.Printf("%+v\n", p1)
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ch, err := structx.AttactToStructAny(p2, updateMap1) // just for compile
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fmt.Println(ch, err)
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fmt.Printf("%+v\n", p2)
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ch3, err := structx.AttactToStructAny(p3, updateMap1) // just for compile
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fmt.Println(ch3, err)
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fmt.Printf("%+v\n", p3)
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ch4, err := structx.AttactToStructAny(p4, updateMap1) // just for compile
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fmt.Println(ch4, err)
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fmt.Printf("%+v\n", p4)
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ch5, err := structx.AttactToStructAny(p5, updateMap1) // just for compile
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fmt.Println(ch5, err)
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fmt.Printf("%+v\n", p5)
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ch6, err := structx.AttactToStructAny(p6, updateMap1) // just for compile
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fmt.Println(ch6, err)
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fmt.Printf("%+v\n", p6)
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}
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type Person struct {
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Name string `json:"name"`
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Age int `json:"age"`
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Active bool `json:"active"`
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}
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type Person2 struct {
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Name string `json:"name"`
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Age int `json:"age"`
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Active bool `json:"active"`
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}
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@@ -0,0 +1,222 @@
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package structx
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import (
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"encoding/json"
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"fmt"
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"reflect"
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"strconv"
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"code.yun.ink/pkg/convx"
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)
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// converterFunc 类型转换函数
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type converterFunc func(reflect.Value, string) (interface{}, error)
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var (
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typeConverters = map[reflect.Kind]converterFunc{
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reflect.Bool: convertBool,
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reflect.Int: convertInt[int],
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reflect.Int8: convertInt[int8],
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reflect.Int16: convertInt[int16],
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reflect.Int32: convertInt[int32],
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reflect.Int64: convertInt[int64],
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reflect.Uint: convertUint[uint],
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reflect.Uint8: convertUint[uint8],
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reflect.Uint16: convertUint[uint16],
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reflect.Uint32: convertUint[uint32],
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reflect.Uint64: convertUint[uint64],
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reflect.Float32: convertFloat[float32],
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reflect.Float64: convertFloat[float64],
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reflect.String: convertString,
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reflect.Slice: convertSlice,
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reflect.Array: convertArray,
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reflect.Map: convertMap,
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reflect.Interface: convertInterface,
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}
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)
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// 转换为字符串
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func convertToString(item interface{}) string {
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switch v := item.(type) {
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case string:
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return v
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case json.Number:
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return string(v)
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default:
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return fmt.Sprintf("%v", item)
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}
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}
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// 转换为数字(float64)
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func convertToFloat64(item interface{}) (float64, error) {
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switch v := item.(type) {
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case float64:
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return v, nil
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case json.Number:
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return v.Float64()
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case int:
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return float64(v), nil
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case int8:
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return float64(v), nil
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case int16:
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return float64(v), nil
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case int32:
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return float64(v), nil
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case int64:
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return float64(v), nil
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case uint:
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return float64(v), nil
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case uint8:
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return float64(v), nil
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case uint16:
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return float64(v), nil
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case uint32:
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return float64(v), nil
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case uint64:
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return float64(v), nil
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case float32:
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return float64(v), nil
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default:
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return 0, fmt.Errorf("无法转换为数字")
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}
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}
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// 转换为类型别名
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func convertToTypeAlias(aliasType reflect.Type, value interface{}) (interface{}, error) {
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if aliasType.Kind() == reflect.Ptr {
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elemType := aliasType.Elem()
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newValue := reflect.New(elemType)
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elemValue := newValue.Elem()
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converted, err := convertValueToType(value, elemType)
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if err != nil {
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return nil, err
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}
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elemValue.Set(reflect.ValueOf(converted))
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return newValue.Interface(), nil
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}
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return convertValueToType(value, aliasType)
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}
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// 转换值为目标类型
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func convertValueToType(value interface{}, targetType reflect.Type) (interface{}, error) {
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valueType := reflect.TypeOf(value)
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if valueType.AssignableTo(targetType) {
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return value, nil
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}
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if valueType.ConvertibleTo(targetType) {
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return reflect.ValueOf(value).Convert(targetType).Interface(), nil
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}
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return nil, fmt.Errorf("无法转换类型")
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}
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// 类型转换函数
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func convertBool(field reflect.Value, value string) (interface{}, error) {
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return convx.ToBool(value)
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}
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func convertInt[T int | int8 | int16 | int32 | int64](field reflect.Value, value string) (interface{}, error) {
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bits := field.Type().Bits()
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intVal, err := strconv.ParseInt(value, 10, bits)
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||||
if err != nil {
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return nil, err
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}
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return T(intVal), nil
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}
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func convertUint[T uint | uint8 | uint16 | uint32 | uint64](field reflect.Value, value string) (interface{}, error) {
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bits := field.Type().Bits()
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uintVal, err := strconv.ParseUint(value, 10, bits)
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if err != nil {
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return nil, err
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}
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return T(uintVal), nil
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}
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func convertFloat[T float32 | float64](field reflect.Value, value string) (interface{}, error) {
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bits := field.Type().Bits()
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floatVal, err := strconv.ParseFloat(value, bits)
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if err != nil {
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return nil, err
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}
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return T(floatVal), nil
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}
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func convertString(field reflect.Value, value string) (interface{}, error) {
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return value, nil
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}
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func convertSlice(field reflect.Value, value string) (interface{}, error) {
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sliceType := field.Type()
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result := reflect.New(sliceType).Elem()
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if err := json.Unmarshal([]byte(value), result.Addr().Interface()); err != nil {
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return nil, err
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}
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return result.Interface(), nil
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||||
}
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func convertArray(field reflect.Value, value string) (interface{}, error) {
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arrayType := field.Type()
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result := reflect.New(arrayType).Elem()
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if err := json.Unmarshal([]byte(value), result.Addr().Interface()); err != nil {
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return nil, err
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||||
}
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return result.Interface(), nil
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||||
}
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|
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func convertMap(field reflect.Value, value string) (interface{}, error) {
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mapType := field.Type()
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result := reflect.New(mapType).Elem()
|
||||
if err := json.Unmarshal([]byte(value), result.Addr().Interface()); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return result.Interface(), nil
|
||||
}
|
||||
|
||||
func convertInterface(field reflect.Value, value string) (interface{}, error) {
|
||||
var result interface{}
|
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if err := json.Unmarshal([]byte(value), &result); err != nil {
|
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return nil, err
|
||||
}
|
||||
return result, nil
|
||||
}
|
||||
|
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func getBaseTypeFromAlias(aliasType reflect.Type) reflect.Type {
|
||||
if aliasType.Kind() == reflect.Ptr {
|
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aliasType = aliasType.Elem()
|
||||
}
|
||||
|
||||
switch aliasType.Kind() {
|
||||
case reflect.String:
|
||||
return reflect.TypeOf("")
|
||||
case reflect.Int:
|
||||
return reflect.TypeOf(int(0))
|
||||
case reflect.Int8:
|
||||
return reflect.TypeOf(int8(0))
|
||||
case reflect.Int16:
|
||||
return reflect.TypeOf(int16(0))
|
||||
case reflect.Int32:
|
||||
return reflect.TypeOf(int32(0))
|
||||
case reflect.Int64:
|
||||
return reflect.TypeOf(int64(0))
|
||||
case reflect.Uint:
|
||||
return reflect.TypeOf(uint(0))
|
||||
case reflect.Uint8:
|
||||
return reflect.TypeOf(uint8(0))
|
||||
case reflect.Uint16:
|
||||
return reflect.TypeOf(uint16(0))
|
||||
case reflect.Uint32:
|
||||
return reflect.TypeOf(uint32(0))
|
||||
case reflect.Uint64:
|
||||
return reflect.TypeOf(uint64(0))
|
||||
case reflect.Float32:
|
||||
return reflect.TypeOf(float32(0))
|
||||
case reflect.Float64:
|
||||
return reflect.TypeOf(float64(0))
|
||||
case reflect.Bool:
|
||||
return reflect.TypeOf(false)
|
||||
default:
|
||||
return nil
|
||||
}
|
||||
}
|
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@@ -0,0 +1,51 @@
|
||||
package structx
|
||||
|
||||
import (
|
||||
"reflect"
|
||||
)
|
||||
|
||||
// ChangeInfo 变更信息
|
||||
type ChangeInfo struct {
|
||||
Old any `json:"old"`
|
||||
New any `json:"new"`
|
||||
Val any `json:"val"`
|
||||
}
|
||||
|
||||
// FieldInfo 字段信息
|
||||
type FieldInfo struct {
|
||||
Index []int // 字段索引路径
|
||||
Name string // 字段名
|
||||
IsPtr bool // 是否为指针
|
||||
FieldType reflect.Type // 字段类型
|
||||
IsSlice bool // 是否为切片
|
||||
IsArray bool // 是否为数组
|
||||
}
|
||||
|
||||
var (
|
||||
basicStructTypes = map[string]bool{
|
||||
"time.Time": true,
|
||||
"time.Duration": true,
|
||||
"github.com/shopspring/decimal.Decimal": true,
|
||||
"sql.NullString": true,
|
||||
"sql.NullInt64": true,
|
||||
"sql.NullBool": true,
|
||||
"sql.NullFloat64": true,
|
||||
}
|
||||
|
||||
basicKinds = map[reflect.Kind]bool{
|
||||
reflect.String: true,
|
||||
reflect.Int: true,
|
||||
reflect.Int8: true,
|
||||
reflect.Int16: true,
|
||||
reflect.Int32: true,
|
||||
reflect.Int64: true,
|
||||
reflect.Uint: true,
|
||||
reflect.Uint8: true,
|
||||
reflect.Uint16: true,
|
||||
reflect.Uint32: true,
|
||||
reflect.Uint64: true,
|
||||
reflect.Float32: true,
|
||||
reflect.Float64: true,
|
||||
reflect.Bool: true,
|
||||
}
|
||||
)
|
||||
+107
@@ -0,0 +1,107 @@
|
||||
package structx
|
||||
|
||||
import (
|
||||
"reflect"
|
||||
"sync"
|
||||
)
|
||||
|
||||
// FieldMapper 字段映射器接口
|
||||
type FieldMapper interface {
|
||||
GetFieldMap(t reflect.Type) map[string]FieldInfo
|
||||
}
|
||||
|
||||
var (
|
||||
// 全局缓存 避免重复计算 TODO: 考虑使用LRU缓存
|
||||
typeInfoCache = make(map[reflect.Type]map[string]FieldInfo)
|
||||
cacheMutex = &sync.RWMutex{}
|
||||
)
|
||||
|
||||
// defaultFieldMapper 默认字段映射器
|
||||
type defaultFieldMapper struct{}
|
||||
|
||||
func (dm *defaultFieldMapper) GetFieldMap(t reflect.Type) map[string]FieldInfo {
|
||||
|
||||
cacheMutex.RLock()
|
||||
if cached, exists := typeInfoCache[t]; exists {
|
||||
cacheMutex.RUnlock()
|
||||
return cached
|
||||
}
|
||||
cacheMutex.RUnlock()
|
||||
|
||||
cacheMutex.Lock()
|
||||
// 双重检查:避免两个goroutine同时构建
|
||||
if cached, exists := typeInfoCache[t]; exists {
|
||||
cacheMutex.Unlock()
|
||||
return cached
|
||||
}
|
||||
fieldMap := make(map[string]FieldInfo)
|
||||
dm.buildFieldMapRecursive(t, []int{}, fieldMap, "")
|
||||
typeInfoCache[t] = fieldMap
|
||||
cacheMutex.Unlock()
|
||||
|
||||
return fieldMap
|
||||
}
|
||||
|
||||
// 递归构建字段映射表
|
||||
func (dm *defaultFieldMapper) buildFieldMapRecursive(t reflect.Type, index []int, fieldMap map[string]FieldInfo, prefix string) {
|
||||
dm.buildFieldMapRecursiveWithVisited(t, index, fieldMap, prefix, make(map[reflect.Type]bool))
|
||||
}
|
||||
|
||||
func (dm *defaultFieldMapper) buildFieldMapRecursiveWithVisited(t reflect.Type, index []int, fieldMap map[string]FieldInfo, prefix string, stack map[reflect.Type]bool) {
|
||||
if stack[t] {
|
||||
return
|
||||
}
|
||||
stack[t] = true
|
||||
defer delete(stack, t)
|
||||
|
||||
for i := 0; i < t.NumField(); i++ {
|
||||
field := t.Field(i)
|
||||
if !field.IsExported() {
|
||||
continue
|
||||
}
|
||||
|
||||
currentIndex := append(index, i)
|
||||
jsonTag := getJSONTagName(field)
|
||||
|
||||
fullKey := jsonTag
|
||||
if prefix != "" {
|
||||
fullKey = prefix + "." + jsonTag
|
||||
}
|
||||
|
||||
fieldType := field.Type
|
||||
isPtr := fieldType.Kind() == reflect.Ptr
|
||||
actualType := fieldType
|
||||
if isPtr {
|
||||
actualType = fieldType.Elem()
|
||||
}
|
||||
|
||||
// 嵌入式结构体字段提升——其字段注册到父级别
|
||||
if field.Anonymous && actualType.Kind() == reflect.Struct && !isBasicStructType(actualType) {
|
||||
dm.buildFieldMapRecursiveWithVisited(actualType, currentIndex, fieldMap, prefix, stack)
|
||||
continue
|
||||
}
|
||||
|
||||
if actualType.Kind() == reflect.Slice || actualType.Kind() == reflect.Array {
|
||||
fieldMap[fullKey] = FieldInfo{
|
||||
Index: currentIndex,
|
||||
Name: field.Name,
|
||||
IsPtr: isPtr,
|
||||
FieldType: fieldType,
|
||||
IsSlice: actualType.Kind() == reflect.Slice,
|
||||
IsArray: actualType.Kind() == reflect.Array,
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
if actualType.Kind() == reflect.Struct && !isBasicStructType(actualType) {
|
||||
dm.buildFieldMapRecursiveWithVisited(actualType, currentIndex, fieldMap, fullKey, stack)
|
||||
}
|
||||
|
||||
fieldMap[fullKey] = FieldInfo{
|
||||
Index: currentIndex,
|
||||
Name: field.Name,
|
||||
IsPtr: isPtr,
|
||||
FieldType: fieldType,
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -1,5 +1,11 @@
|
||||
module code.yun.ink/pkg/structx
|
||||
|
||||
go 1.20
|
||||
go 1.21.0
|
||||
|
||||
require code.yun.ink/pkg/convx v1.0.1
|
||||
toolchain go1.22.4
|
||||
|
||||
require (
|
||||
code.yun.ink/pkg/convx v1.0.3
|
||||
github.com/shopspring/decimal v1.4.0
|
||||
github.com/spf13/cast v1.10.0
|
||||
)
|
||||
|
||||
@@ -1,2 +1,16 @@
|
||||
code.yun.ink/pkg/convx v1.0.1 h1:T6yIVqyC1nQc9CO0C7iHn5rs7GxbaulmrJtxwg95q9Y=
|
||||
code.yun.ink/pkg/convx v1.0.1/go.mod h1:6xqmUend1kwarRvJ0TQlfzzS4QCWdRrXQiUY/ggzYqo=
|
||||
code.yun.ink/pkg/convx v1.0.3 h1:pH8dUOgsoaBYVQ3+4C2+uVua561nDxq6/GpaQ9wnCew=
|
||||
code.yun.ink/pkg/convx v1.0.3/go.mod h1:6xqmUend1kwarRvJ0TQlfzzS4QCWdRrXQiUY/ggzYqo=
|
||||
github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
|
||||
github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
|
||||
github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
|
||||
github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
|
||||
github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
|
||||
github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
|
||||
github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
|
||||
github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
|
||||
github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
|
||||
github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
|
||||
github.com/shopspring/decimal v1.4.0 h1:bxl37RwXBklmTi0C79JfXCEBD1cqqHt0bbgBAGFp81k=
|
||||
github.com/shopspring/decimal v1.4.0/go.mod h1:gawqmDU56v4yIKSwfBSFip1HdCCXN8/+DMd9qYNcwME=
|
||||
github.com/spf13/cast v1.10.0 h1:h2x0u2shc1QuLHfxi+cTJvs30+ZAHOGRic8uyGTDWxY=
|
||||
github.com/spf13/cast v1.10.0/go.mod h1:jNfB8QC9IA6ZuY2ZjDp0KtFO2LZZlg4S/7bzP6qqeHo=
|
||||
|
||||
+19
@@ -0,0 +1,19 @@
|
||||
package structx
|
||||
|
||||
type Options struct {
|
||||
// map允许传入struct不存在的字段
|
||||
allowUnknownFields bool
|
||||
}
|
||||
|
||||
type Option func(*Options)
|
||||
|
||||
func defaultOptions() *Options {
|
||||
return &Options{}
|
||||
}
|
||||
|
||||
// 允许传入struct不存在的字段
|
||||
func AllowUnknownFields() Option {
|
||||
return func(o *Options) {
|
||||
o.allowUnknownFields = true
|
||||
}
|
||||
}
|
||||
+250
-134
@@ -1,158 +1,274 @@
|
||||
package structx
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"reflect"
|
||||
"strconv"
|
||||
"strings"
|
||||
"code.yun.ink/pkg/convx"
|
||||
|
||||
"github.com/spf13/cast"
|
||||
)
|
||||
|
||||
type ChangeInfo struct {
|
||||
Old string `json:"old"`
|
||||
New string `json:"new"`
|
||||
Val interface{} `json:"val"`
|
||||
// 全局函数(保持向后兼容)
|
||||
func AttactToStructAny(structxx any, updateMap map[string]any) (map[string]ChangeInfo, error) {
|
||||
return NewStructProcessor().AttactToStructAny(structxx, updateMap)
|
||||
}
|
||||
|
||||
// 这个方法将map的数据赋值到结构体中
|
||||
func AttactToStruct(structxx interface{}, updateMap map[string]string) (map[string]ChangeInfo, error) {
|
||||
// 将结构体指针转换为reflect.Value类型
|
||||
func AttactToStruct(structxx any, updateMap map[string]string) (map[string]ChangeInfo, error) {
|
||||
return NewStructProcessor().AttactToStruct(structxx, updateMap)
|
||||
}
|
||||
|
||||
// StructProcessor 结构体处理器
|
||||
type StructProcessor struct {
|
||||
options *Options
|
||||
fieldMapper FieldMapper
|
||||
valueSetter ValueSetter
|
||||
}
|
||||
|
||||
// NewStructProcessor 创建新的结构体处理器
|
||||
func NewStructProcessor(ops ...Option) *StructProcessor {
|
||||
|
||||
options := defaultOptions()
|
||||
for _, op := range ops {
|
||||
op(options)
|
||||
}
|
||||
|
||||
return &StructProcessor{
|
||||
options: options,
|
||||
fieldMapper: &defaultFieldMapper{},
|
||||
valueSetter: &defaultValueSetter{},
|
||||
}
|
||||
}
|
||||
|
||||
// AttactToStructAny 将 map[string]interface{} 转换为字符串映射并调用 AttactToStruct
|
||||
func (sp *StructProcessor) AttactToStructAny(structxx any, updateMap map[string]any) (map[string]ChangeInfo, error) {
|
||||
stringMap := make(map[string]string, len(updateMap))
|
||||
for k, v := range updateMap {
|
||||
str, err := cast.ToStringE(v)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("转换键 %s 的值失败: %w", k, err)
|
||||
}
|
||||
stringMap[k] = str
|
||||
}
|
||||
return sp.AttactToStruct(structxx, stringMap)
|
||||
}
|
||||
|
||||
// AttactToStruct 将映射数据赋值到结构体中
|
||||
func (sp *StructProcessor) AttactToStruct(structxx any, updateMap map[string]string) (map[string]ChangeInfo, error) {
|
||||
v := reflect.ValueOf(structxx)
|
||||
// 如果v不是指针或者v是零值,直接返回
|
||||
if v.Kind() != reflect.Ptr || v.IsNil() {
|
||||
return nil, fmt.Errorf("structxx 需要是指针")
|
||||
return nil, fmt.Errorf("structxx 需要是非空指针")
|
||||
}
|
||||
|
||||
changeMap := make(map[string]ChangeInfo)
|
||||
|
||||
// 获取v指向的元素,也就是结构体本身
|
||||
v = v.Elem()
|
||||
// 遍历map的键和值
|
||||
for k, val := range updateMap {
|
||||
// 根据json标签获取结构体中对应的字段
|
||||
field := v.FieldByNameFunc(func(name string) bool {
|
||||
f, _ := v.Type().FieldByName(name)
|
||||
// fmt.Printf("FieldByNameFunc:%+v\n", f)
|
||||
js := f.Tag.Get("json")
|
||||
s := strings.Split(js, ",")
|
||||
if len(s) > 1 {
|
||||
return s[0] == k
|
||||
}
|
||||
return js == k
|
||||
})
|
||||
// 如果字段存在且可写
|
||||
if field.IsValid() && field.CanSet() {
|
||||
// 根据字段的类型进行类型转换和赋值
|
||||
switch field.Kind() {
|
||||
// convx.
|
||||
case reflect.Int64:
|
||||
// 将字符串转换为int64
|
||||
oldi := field.Int()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := strconv.ParseInt(val, 10, 64)
|
||||
field.SetInt(i)
|
||||
t := v.Type()
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.String:
|
||||
olds := field.String()
|
||||
fieldMap := sp.fieldMapper.GetFieldMap(t)
|
||||
|
||||
field.SetString(val)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: val}
|
||||
case reflect.Int:
|
||||
oldi := field.Int()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToInt64(val)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Int32:
|
||||
oldi := field.Int()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToInt64(val)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Int16:
|
||||
oldi := field.Int()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToInt64(val)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Int8:
|
||||
oldi := field.Int()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToInt64(val)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Uint:
|
||||
oldi := field.Uint()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToInt64(val)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Uint32:
|
||||
oldi := field.Uint()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToInt64(val)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Uint16:
|
||||
oldi := field.Uint()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToInt64(val)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Uint8:
|
||||
oldi := field.Uint()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToInt64(val)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Uint64:
|
||||
oldi := field.Uint()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToInt64(val)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Float32:
|
||||
oldi := field.Float()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToFloat64(val)
|
||||
field.SetFloat(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Float64:
|
||||
oldi := field.Float()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToFloat64(val)
|
||||
field.SetFloat(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
default:
|
||||
fmt.Println("未知类型")
|
||||
return nil, fmt.Errorf("未知类型:" + k)
|
||||
for mapKey, mapValue := range updateMap {
|
||||
fieldInfo, exists := fieldMap[mapKey]
|
||||
if !exists {
|
||||
if sp.options.allowUnknownFields {
|
||||
continue
|
||||
} else {
|
||||
return nil, fmt.Errorf("字段 %s 不存在", mapKey)
|
||||
}
|
||||
}
|
||||
|
||||
field, err := sp.getFieldByPath(v, fieldInfo.Index)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("获取字段 %s 失败: %w", mapKey, err)
|
||||
}
|
||||
|
||||
if !field.IsValid() {
|
||||
continue
|
||||
}
|
||||
|
||||
// 处理指针字段
|
||||
if fieldInfo.IsPtr {
|
||||
if field.Kind() != reflect.Ptr {
|
||||
return nil, fmt.Errorf("字段 %s 应该是指针类型", mapKey)
|
||||
}
|
||||
if field.IsNil() {
|
||||
field.Set(reflect.New(fieldInfo.FieldType.Elem()))
|
||||
}
|
||||
field = field.Elem()
|
||||
}
|
||||
|
||||
// 处理切片和数组
|
||||
if fieldInfo.IsSlice || fieldInfo.IsArray {
|
||||
if err := sp.processSliceOrArrayField(field, mapValue, mapKey); err != nil {
|
||||
return nil, fmt.Errorf("处理切片/数组字段 %s 失败: %w", mapKey, err)
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
// 处理嵌套结构体
|
||||
if field.Kind() == reflect.Struct && !isBasicStructType(field.Type()) {
|
||||
nestedChanges, err := sp.processNestedStruct(field, mapValue, mapKey)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("处理嵌套结构体字段 %s 失败: %w", mapKey, err)
|
||||
}
|
||||
for nestedKey, change := range nestedChanges {
|
||||
changeMap[nestedKey] = change
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
if !field.CanSet() {
|
||||
continue
|
||||
}
|
||||
|
||||
oldValue := field.Interface()
|
||||
newValue, err := sp.valueSetter.SetFieldValue(field, mapValue)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("设置字段 %s 的值失败: %w", mapKey, err)
|
||||
}
|
||||
|
||||
changeMap[mapKey] = ChangeInfo{
|
||||
Old: oldValue,
|
||||
New: newValue,
|
||||
Val: newValue,
|
||||
}
|
||||
}
|
||||
|
||||
return changeMap, nil
|
||||
}
|
||||
|
||||
// getFieldByPath 通过路径获取字段
|
||||
func (sp *StructProcessor) getFieldByPath(v reflect.Value, index []int) (reflect.Value, error) {
|
||||
if len(index) == 0 {
|
||||
return v, nil
|
||||
}
|
||||
|
||||
field := v.Field(index[0])
|
||||
if !field.IsValid() {
|
||||
return reflect.Value{}, fmt.Errorf("字段索引 %d 无效", index[0])
|
||||
}
|
||||
|
||||
if len(index) > 1 {
|
||||
// 只有中间节点才自动解引用指针
|
||||
for field.Kind() == reflect.Ptr {
|
||||
if field.IsNil() {
|
||||
field.Set(reflect.New(field.Type().Elem()))
|
||||
}
|
||||
field = field.Elem()
|
||||
}
|
||||
return sp.getFieldByPath(field, index[1:])
|
||||
}
|
||||
|
||||
return field, nil
|
||||
}
|
||||
|
||||
// processSliceOrArrayField 处理切片和数组字段
|
||||
func (sp *StructProcessor) processSliceOrArrayField(field reflect.Value, value string, fieldKey string) error {
|
||||
var jsonData []interface{}
|
||||
decoder := json.NewDecoder(strings.NewReader(value))
|
||||
decoder.UseNumber()
|
||||
if err := decoder.Decode(&jsonData); err != nil {
|
||||
return fmt.Errorf("字段 %s 的值必须是JSON数组格式: %w", fieldKey, err)
|
||||
}
|
||||
|
||||
fieldType := field.Type()
|
||||
elemType := fieldType.Elem()
|
||||
|
||||
var newContainer reflect.Value
|
||||
if fieldType.Kind() == reflect.Slice {
|
||||
newContainer = reflect.MakeSlice(fieldType, len(jsonData), len(jsonData))
|
||||
} else if fieldType.Kind() == reflect.Array {
|
||||
if len(jsonData) != fieldType.Len() {
|
||||
return fmt.Errorf("字段 %s 的数组长度不匹配", fieldKey)
|
||||
}
|
||||
newContainer = reflect.New(fieldType).Elem()
|
||||
} else {
|
||||
return fmt.Errorf("字段 %s 不是切片或数组类型", fieldKey)
|
||||
}
|
||||
|
||||
for i, item := range jsonData {
|
||||
if err := sp.valueSetter.SetSliceElementValue(newContainer.Index(i), item, elemType); err != nil {
|
||||
return fmt.Errorf("设置切片元素失败: %w", err)
|
||||
}
|
||||
}
|
||||
|
||||
field.Set(newContainer)
|
||||
return nil
|
||||
}
|
||||
|
||||
// processNestedStruct 处理嵌套结构体
|
||||
func (sp *StructProcessor) processNestedStruct(field reflect.Value, value string, parentKey string) (map[string]ChangeInfo, error) {
|
||||
changeMap := make(map[string]ChangeInfo)
|
||||
|
||||
var structValue reflect.Value
|
||||
if field.Kind() == reflect.Ptr {
|
||||
if field.IsNil() {
|
||||
field.Set(reflect.New(field.Type().Elem()))
|
||||
}
|
||||
structValue = field.Elem()
|
||||
} else {
|
||||
structValue = field
|
||||
}
|
||||
|
||||
if !structValue.IsValid() || structValue.Kind() != reflect.Struct {
|
||||
return nil, fmt.Errorf("无效的结构体字段")
|
||||
}
|
||||
|
||||
// 尝试解析为JSON对象
|
||||
var nestedMap map[string]interface{}
|
||||
decoder := json.NewDecoder(strings.NewReader(value))
|
||||
decoder.UseNumber()
|
||||
if err := decoder.Decode(&nestedMap); err == nil {
|
||||
stringMap := make(map[string]string, len(nestedMap))
|
||||
for k, v := range nestedMap {
|
||||
str, err := cast.ToStringE(v)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("转换嵌套字段 %s 的值失败: %w", k, err)
|
||||
}
|
||||
stringMap[k] = str
|
||||
}
|
||||
|
||||
nestedChanges, err := sp.AttactToStruct(structValue.Addr().Interface(), stringMap)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
for key, change := range nestedChanges {
|
||||
changeMap[parentKey+"."+key] = change
|
||||
}
|
||||
return changeMap, nil
|
||||
}
|
||||
|
||||
// 尝试直接设置值
|
||||
if hasUnmarshalJSON(structValue.Type()) {
|
||||
oldValue := field.Interface()
|
||||
|
||||
if err := setUnmarshalJSONValue(structValue, value); err != nil {
|
||||
return nil, fmt.Errorf("设置UnmarshalJSON值失败: %w", err)
|
||||
}
|
||||
|
||||
changeMap[parentKey] = ChangeInfo{
|
||||
Old: oldValue,
|
||||
New: structValue.Interface(),
|
||||
Val: structValue.Interface(),
|
||||
}
|
||||
return changeMap, nil
|
||||
}
|
||||
|
||||
if isBasicStructType(structValue.Type()) {
|
||||
oldValue := field.Interface()
|
||||
|
||||
if err := setBasicStructValue(structValue, value); err != nil {
|
||||
return nil, fmt.Errorf("设置基本结构体值失败: %w", err)
|
||||
}
|
||||
|
||||
changeMap[parentKey] = ChangeInfo{
|
||||
Old: oldValue,
|
||||
New: structValue.Interface(),
|
||||
Val: structValue.Interface(),
|
||||
}
|
||||
return changeMap, nil
|
||||
}
|
||||
|
||||
return nil, fmt.Errorf("嵌套结构体值必须是有效的JSON格式")
|
||||
}
|
||||
|
||||
+184
@@ -0,0 +1,184 @@
|
||||
package structx
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"reflect"
|
||||
"strconv"
|
||||
"strings"
|
||||
|
||||
"code.yun.ink/pkg/convx"
|
||||
)
|
||||
|
||||
type ChangeInfo struct {
|
||||
Old string `json:"old"`
|
||||
New string `json:"new"`
|
||||
Val interface{} `json:"val"`
|
||||
}
|
||||
|
||||
// map[string]interface类型的值附加到结构体中
|
||||
func AttactToStructAny(structxx interface{}, updateMap map[string]interface{}) (map[string]ChangeInfo, error) {
|
||||
m := map[string]string{}
|
||||
for k, v := range updateMap {
|
||||
str, err := convx.ToString(v)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
m[k] = str
|
||||
}
|
||||
|
||||
// fmt.Println("bef", m, structxx)
|
||||
|
||||
r, err := AttactToStruct(structxx, m)
|
||||
// fmt.Println("resp:", r, m, structxx)
|
||||
return r, err
|
||||
}
|
||||
|
||||
// 这个方法将map的数据赋值到结构体中
|
||||
func AttactToStruct(structxx interface{}, updateMap map[string]string) (map[string]ChangeInfo, error) {
|
||||
// 将结构体指针转换为reflect.Value类型
|
||||
v := reflect.ValueOf(structxx)
|
||||
// 如果v不是指针或者v是零值,直接返回
|
||||
if v.Kind() != reflect.Ptr || v.IsNil() {
|
||||
return nil, fmt.Errorf("structxx 需要是指针")
|
||||
}
|
||||
|
||||
changeMap := make(map[string]ChangeInfo)
|
||||
|
||||
// 获取v指向的元素,也就是结构体本身
|
||||
v = v.Elem()
|
||||
// 遍历map的键和值
|
||||
for k, val := range updateMap {
|
||||
// 根据json标签获取结构体中对应的字段
|
||||
field := v.FieldByNameFunc(func(name string) bool {
|
||||
f, _ := v.Type().FieldByName(name)
|
||||
// fmt.Printf("FieldByNameFunc:%+v\n", f)
|
||||
js := f.Tag.Get("json")
|
||||
s := strings.Split(js, ",")
|
||||
if len(s) > 1 {
|
||||
return s[0] == k
|
||||
}
|
||||
return js == k
|
||||
})
|
||||
// 如果字段存在且可写
|
||||
if field.IsValid() && field.CanSet() {
|
||||
// 根据字段的类型进行类型转换和赋值
|
||||
switch field.Kind() {
|
||||
case reflect.Bool:
|
||||
oldb := field.Bool()
|
||||
olds, _ := convx.ToString(oldb)
|
||||
|
||||
b, _ := convx.ToBool(val)
|
||||
field.SetBool(b)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: b}
|
||||
case reflect.Int64:
|
||||
// 将字符串转换为int64
|
||||
oldi := field.Int()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := strconv.ParseInt(val, 10, 64)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.String:
|
||||
olds := field.String()
|
||||
|
||||
field.SetString(val)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: val}
|
||||
case reflect.Int:
|
||||
oldi := field.Int()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToInt64(val)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Int32:
|
||||
oldi := field.Int()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToInt64(val)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Int16:
|
||||
oldi := field.Int()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToInt64(val)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Int8:
|
||||
oldi := field.Int()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToInt64(val)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Uint:
|
||||
oldi := field.Uint()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToInt64(val)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Uint32:
|
||||
oldi := field.Uint()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToInt64(val)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Uint16:
|
||||
oldi := field.Uint()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToInt64(val)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Uint8:
|
||||
oldi := field.Uint()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToInt64(val)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Uint64:
|
||||
oldi := field.Uint()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToInt64(val)
|
||||
field.SetInt(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Float32:
|
||||
oldi := field.Float()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToFloat64(val)
|
||||
field.SetFloat(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
case reflect.Float64:
|
||||
oldi := field.Float()
|
||||
olds, _ := convx.ToString(oldi)
|
||||
|
||||
i, _ := convx.ToFloat64(val)
|
||||
field.SetFloat(i)
|
||||
|
||||
changeMap[k] = ChangeInfo{Old: olds, New: val, Val: i}
|
||||
default:
|
||||
fmt.Println("未知类型")
|
||||
return nil, fmt.Errorf("未知类型:" + k)
|
||||
}
|
||||
}
|
||||
}
|
||||
return changeMap, nil
|
||||
}
|
||||
+2014
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,206 @@
|
||||
package structx
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"reflect"
|
||||
"strings"
|
||||
"time"
|
||||
)
|
||||
|
||||
// 工具函数
|
||||
|
||||
func getJSONTagName(field reflect.StructField) string {
|
||||
jsonTag := field.Tag.Get("json")
|
||||
if jsonTag == "" || jsonTag == "-" {
|
||||
return field.Name
|
||||
}
|
||||
return strings.Split(jsonTag, ",")[0]
|
||||
}
|
||||
|
||||
// 是否实现了json.Unmarshaler接口
|
||||
func hasUnmarshalJSON(t reflect.Type) bool {
|
||||
if t.Kind() == reflect.Ptr {
|
||||
t = t.Elem()
|
||||
}
|
||||
unmarshalerType := reflect.TypeOf((*json.Unmarshaler)(nil)).Elem()
|
||||
return t.Implements(unmarshalerType) || reflect.PointerTo(t).Implements(unmarshalerType)
|
||||
}
|
||||
|
||||
// 是否实现了text.Unmarshaler接口
|
||||
func hasUnmarshalText(t reflect.Type) bool {
|
||||
if t.Kind() == reflect.Ptr {
|
||||
t = t.Elem()
|
||||
}
|
||||
textUnmarshalerType := reflect.TypeOf((*interface {
|
||||
UnmarshalText([]byte) error
|
||||
})(nil)).Elem()
|
||||
return t.Implements(textUnmarshalerType) || reflect.PointerTo(t).Implements(textUnmarshalerType)
|
||||
}
|
||||
|
||||
// 设置json.Unmarshaler接口的值
|
||||
func setUnmarshalJSONValue(field reflect.Value, value interface{}) error {
|
||||
var jsonBytes []byte
|
||||
if str, ok := value.(string); ok {
|
||||
// 尝试直接将字符串作为JSON解析;如果是合法JSON则直接使用
|
||||
if json.Valid([]byte(str)) {
|
||||
jsonBytes = []byte(str)
|
||||
} else {
|
||||
// 不是合法JSON,作为JSON字符串值处理(加引号)
|
||||
jsonBytes = []byte(`"` + str + `"`)
|
||||
}
|
||||
} else {
|
||||
var err error
|
||||
jsonBytes, err = json.Marshal(value)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
var fieldAddr reflect.Value
|
||||
if field.CanAddr() {
|
||||
fieldAddr = field.Addr()
|
||||
} else {
|
||||
temp := reflect.New(field.Type())
|
||||
temp.Elem().Set(field)
|
||||
fieldAddr = temp
|
||||
}
|
||||
|
||||
if unmarshaler, ok := fieldAddr.Interface().(json.Unmarshaler); ok {
|
||||
return unmarshaler.UnmarshalJSON(jsonBytes)
|
||||
}
|
||||
return fmt.Errorf("类型未实现Unmarshaler")
|
||||
}
|
||||
|
||||
// 设置text.Unmarshaler接口的值
|
||||
func setUnmarshalTextValue(field reflect.Value, value string) error {
|
||||
var fieldAddr reflect.Value
|
||||
if field.CanAddr() {
|
||||
fieldAddr = field.Addr()
|
||||
} else {
|
||||
temp := reflect.New(field.Type())
|
||||
temp.Elem().Set(field)
|
||||
fieldAddr = temp
|
||||
}
|
||||
|
||||
if unmarshaler, ok := fieldAddr.Interface().(interface {
|
||||
UnmarshalText([]byte) error
|
||||
}); ok {
|
||||
return unmarshaler.UnmarshalText([]byte(value))
|
||||
}
|
||||
return fmt.Errorf("类型未实现UnmarshalText")
|
||||
}
|
||||
|
||||
// 是否是基础结构体类型
|
||||
func isBasicStructType(t reflect.Type) bool {
|
||||
if t.Kind() == reflect.Ptr {
|
||||
t = t.Elem()
|
||||
}
|
||||
return basicStructTypes[t.String()]
|
||||
}
|
||||
|
||||
// 设置基础结构体类型的值
|
||||
func setBasicStructValue(field reflect.Value, value string) error {
|
||||
if hasUnmarshalText(field.Type()) {
|
||||
return setUnmarshalTextValue(field, value)
|
||||
}
|
||||
|
||||
if field.Type().String() == "time.Duration" {
|
||||
d, err := time.ParseDuration(value)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
field.SetInt(int64(d))
|
||||
return nil
|
||||
}
|
||||
|
||||
return json.Unmarshal([]byte(value), field.Addr().Interface())
|
||||
}
|
||||
|
||||
// 设置指针类型的值
|
||||
func setPointerFieldValue(field reflect.Value, value string) (interface{}, error) {
|
||||
if field.Kind() != reflect.Ptr {
|
||||
return nil, fmt.Errorf("期望指针类型")
|
||||
}
|
||||
if field.IsNil() {
|
||||
field.Set(reflect.New(field.Type().Elem()))
|
||||
}
|
||||
|
||||
return new(defaultValueSetter).SetFieldValue(field.Elem(), value)
|
||||
}
|
||||
|
||||
// 是否是类型别名
|
||||
func isTypeAlias(t reflect.Type) bool {
|
||||
if t.Kind() == reflect.Ptr {
|
||||
t = t.Elem()
|
||||
}
|
||||
if basicStructTypes[t.String()] {
|
||||
return false
|
||||
}
|
||||
return t.PkgPath() != "" && basicKinds[t.Kind()]
|
||||
}
|
||||
|
||||
// 设置类型别名的值
|
||||
func setTypeAliasValue(field reflect.Value, value string) (interface{}, error) {
|
||||
baseType := getBaseTypeFromAlias(field.Type())
|
||||
if baseType == nil {
|
||||
return nil, fmt.Errorf("无法获取基础类型")
|
||||
}
|
||||
|
||||
converter, exists := typeConverters[baseType.Kind()]
|
||||
if !exists {
|
||||
return nil, fmt.Errorf("不支持的基础类型")
|
||||
}
|
||||
|
||||
baseValue := reflect.New(baseType).Elem()
|
||||
result, err := converter(baseValue, value)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
convertedValue, err := convertToTypeAlias(field.Type(), result)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
field.Set(reflect.ValueOf(convertedValue))
|
||||
return convertedValue, nil
|
||||
}
|
||||
|
||||
// 是否是自定义结构体类型
|
||||
func isCustomStructType(t reflect.Type) bool {
|
||||
if t.Kind() == reflect.Ptr {
|
||||
t = t.Elem()
|
||||
}
|
||||
return t.PkgPath() != "" && !isBasicStructType(t) && !isTypeAlias(t) && t.Kind() == reflect.Struct
|
||||
}
|
||||
|
||||
// 设置自定义结构体类型的值
|
||||
func setCustomTypeValue(field reflect.Value, value string) (interface{}, error) {
|
||||
if hasUnmarshalText(field.Type()) {
|
||||
if err := setUnmarshalTextValue(field, value); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return field.Interface(), nil
|
||||
}
|
||||
|
||||
if err := json.Unmarshal([]byte(value), field.Addr().Interface()); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return field.Interface(), nil
|
||||
}
|
||||
|
||||
// 设置基础结构体元素的值
|
||||
func setBasicStructElement(elemValue reflect.Value, item interface{}) error {
|
||||
return setStructElement(elemValue, item)
|
||||
}
|
||||
|
||||
// 设置结构体元素的值
|
||||
func setStructElement(elemValue reflect.Value, item interface{}) error {
|
||||
jsonBytes, err := json.Marshal(item)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
return json.Unmarshal(jsonBytes, elemValue.Addr().Interface())
|
||||
}
|
||||
+125
@@ -0,0 +1,125 @@
|
||||
package structx
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"reflect"
|
||||
"strconv"
|
||||
)
|
||||
|
||||
// ValueSetter 值设置器接口
|
||||
type ValueSetter interface {
|
||||
SetFieldValue(field reflect.Value, value string) (interface{}, error)
|
||||
SetSliceElementValue(elemValue reflect.Value, item interface{}, elemType reflect.Type) error
|
||||
}
|
||||
|
||||
// defaultValueSetter 默认值设置器
|
||||
type defaultValueSetter struct{}
|
||||
|
||||
func (ds *defaultValueSetter) SetFieldValue(field reflect.Value, value string) (interface{}, error) {
|
||||
fieldType := field.Type()
|
||||
|
||||
if hasUnmarshalJSON(fieldType) {
|
||||
if err := setUnmarshalJSONValue(field, value); err != nil {
|
||||
return nil, fmt.Errorf("UnmarshalJSON失败: %w", err)
|
||||
}
|
||||
return field.Interface(), nil
|
||||
}
|
||||
|
||||
if hasUnmarshalText(fieldType) {
|
||||
if err := setUnmarshalTextValue(field, value); err != nil {
|
||||
return nil, fmt.Errorf("UnmarshalText失败: %w", err)
|
||||
}
|
||||
return field.Interface(), nil
|
||||
}
|
||||
|
||||
if fieldType.Kind() == reflect.Ptr {
|
||||
return setPointerFieldValue(field, value)
|
||||
}
|
||||
|
||||
if isBasicStructType(fieldType) {
|
||||
if err := setBasicStructValue(field, value); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return field.Interface(), nil
|
||||
}
|
||||
|
||||
if isTypeAlias(fieldType) {
|
||||
return setTypeAliasValue(field, value)
|
||||
}
|
||||
|
||||
if isCustomStructType(fieldType) {
|
||||
return setCustomTypeValue(field, value)
|
||||
}
|
||||
|
||||
converter, exists := typeConverters[fieldType.Kind()]
|
||||
if !exists {
|
||||
return nil, fmt.Errorf("不支持的类型: %s", fieldType.Kind())
|
||||
}
|
||||
|
||||
result, err := converter(field, value)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
field.Set(reflect.ValueOf(result))
|
||||
return result, nil
|
||||
}
|
||||
|
||||
func (ds *defaultValueSetter) SetSliceElementValue(elemValue reflect.Value, item interface{}, elemType reflect.Type) error {
|
||||
if elemType.Kind() == reflect.Ptr {
|
||||
if elemValue.IsNil() {
|
||||
elemValue.Set(reflect.New(elemType.Elem()))
|
||||
}
|
||||
return ds.SetSliceElementValue(elemValue.Elem(), item, elemType.Elem())
|
||||
}
|
||||
|
||||
if hasUnmarshalJSON(elemType) {
|
||||
return setUnmarshalJSONValue(elemValue, item)
|
||||
}
|
||||
|
||||
switch elemType.Kind() {
|
||||
case reflect.String:
|
||||
elemValue.SetString(convertToString(item))
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
itemStr := convertToString(item)
|
||||
intVal, err := strconv.ParseInt(itemStr, 10, elemType.Bits())
|
||||
if err != nil {
|
||||
return fmt.Errorf("无法转换为整型: %w", err)
|
||||
}
|
||||
elemValue.SetInt(intVal)
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
|
||||
itemStr := convertToString(item)
|
||||
uintVal, err := strconv.ParseUint(itemStr, 10, elemType.Bits())
|
||||
if err != nil {
|
||||
return fmt.Errorf("无法转换为无符号整型: %w", err)
|
||||
}
|
||||
elemValue.SetUint(uintVal)
|
||||
case reflect.Float32, reflect.Float64:
|
||||
itemStr := convertToString(item)
|
||||
floatVal, err := strconv.ParseFloat(itemStr, elemType.Bits())
|
||||
if err != nil {
|
||||
return fmt.Errorf("无法转换为浮点型: %w", err)
|
||||
}
|
||||
elemValue.SetFloat(floatVal)
|
||||
case reflect.Bool:
|
||||
if b, ok := item.(bool); ok {
|
||||
elemValue.SetBool(b)
|
||||
} else {
|
||||
itemStr := convertToString(item)
|
||||
b, err := strconv.ParseBool(itemStr)
|
||||
if err != nil {
|
||||
return fmt.Errorf("无法转换为布尔型: %w", err)
|
||||
}
|
||||
elemValue.SetBool(b)
|
||||
}
|
||||
case reflect.Struct:
|
||||
if isBasicStructType(elemType) {
|
||||
return setBasicStructElement(elemValue, item)
|
||||
}
|
||||
return setStructElement(elemValue, item)
|
||||
default:
|
||||
return fmt.Errorf("不支持的切片元素类型: %s", elemType.Kind())
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
Reference in New Issue
Block a user