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yun
2026-08-15 01:38:05 +08:00
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// manager 展示多通道管理器的完整用法。
//
// 功能:
// 1. 注册多个不同类型的通道(smtp/aliyun/aws),统一路由
// 2. 同一类型注册多份配置(主备 SMTP 切换)
// 3. 发送时按实例名指定通道,或发送时临时指定配置
// 4. 遍历当前注册的通道实例信息
//
// 怎么运行:
// 1. 替换下方各通道的凭据为真实值
// 2. 在项目根目录执行:go run ./examples/manager
package main
import (
"context"
"fmt"
"code.yun.ink/pkg/mailx"
"code.yun.ink/pkg/mailx/aliyun"
"code.yun.ink/pkg/mailx/aws"
"code.yun.ink/pkg/mailx/smtp"
)
func main() {
ctx := context.Background()
mgr := mailx.NewManager()
// ===== 注册多个不同类型的通道 =====
// 用 Register 注册时,实例名 = 通道类型名(smtp / aliyun / aws / mailgun
_ = mgr.Register(smtp.New(smtp.Config{
Host: "smtp.qq.com", Port: 587, User: "a@qq.com", Password: "code",
}))
_ = mgr.Register(aliyun.New(aliyun.Config{
AccessKeyID: "ak", AccessKeySecret: "sk", AccountName: "noreply@example.com",
}))
_ = mgr.Register(aws.New(aws.Config{
AccessKeyID: "ak", AccessKeySecret: "sk", Region: "ap-northeast-1",
Sender: "noreply@example.com",
}))
// ===== 同一类型注册多份配置(主备切换) =====
// 用 RegisterNamed 指定实例名,可注册多个 smtp 实例
_ = mgr.RegisterNamed("smtp-main", smtp.New(smtp.Config{
Host: "smtp.qq.com", Port: 465, User: "a@qq.com", Password: "main-code",
}))
_ = mgr.RegisterNamed("smtp-backup", smtp.New(smtp.Config{
Host: "smtp.163.com", Port: 465, User: "a@163.com", Password: "backup-code",
}))
// ===== 设置默认通道(不设置则用第一个注册的) =====
_ = mgr.SetDefault("aliyun")
// ===== 遍历当前注册的通道实例信息 =====
fmt.Println("registered instances:")
for _, info := range mgr.Senders() {
fmt.Printf(" - %s (type: %s)\n", info.Name, info.Type)
}
fmt.Println("default:", mgr.Default())
msg := mailx.NewMessage().
From("noreply@example.com").
To("user@example.com").
Subject("Notice").
Text("hello").
HTML("<h1>Hello</h1>").
Build()
// ===== 用默认通道发送 =====
if err := mgr.Send(ctx, msg); err != nil {
fmt.Println("default send:", err)
}
// ===== 按实例名指定通道发送 =====
if err := mgr.SendWith(ctx, "aws", msg); err != nil {
fmt.Println("aws send:", err)
}
if err := mgr.SendWith(ctx, "smtp-backup", msg); err != nil { // 主 SMTP 失败时可切备用
fmt.Println("smtp-backup send:", err)
}
// ===== 发送时临时指定配置,无需提前注册 =====
if err := mgr.SendBy(ctx, smtp.New(smtp.Config{
Host: "smtp.163.com", Port: 465, User: "b@163.com", Password: "code",
}), msg); err != nil {
fmt.Println("temp smtp send:", err)
}
// ===== 注销一个实例(可选) =====
mgr.Unregister("smtp-main")
fmt.Println("after unregister, instances:", mgr.Names())
}