database - 如何使用这些包 "google.golang.org/appengine/mail"在 Go 中上传附件

Question

下面是我尝试用附件发送的代码。

    msg := &mail.Message{
                    Sender: "kasireddy002@gmail.com",
                    To:     []string{addr},
          Attachments : []Attachment{
                           Name :"file name",
                            Data :[]byte,
                        ContentID :"fileid",
                      },

                    Subject: "Welcome to Simplyst Health: Verify your account",
    if err := mail.Send(context, msg); err != nil {
                    log.Errorf(ctx, "Alas, my user, the email failed to sendeth: err)
                }

当我试图保存我的代码时，它抛出了一个错误。

错误:

cannot use []Attachment literal (type []Attachment) as type []"google.golang.org/appengine/mail".Attachment in field value

Answer 1

你只需要把它改成

msg := &mail.Message{
    Sender: "kasireddy002@gmail.com",
    To:     []string{addr},
    Attachments: []mail.Attachment{
        {
            Name:      "file name",
            Data:      []byte{},
            ContentID: "fileid",
        },
    },
    Subject: "Welcome to Simplyst Health: Verify your account",
}

只是指出您的代码存在的问题:

• 在您的 mail.Message
定义中存在错误检查
• 附件 类型缺少包名称，邮件
• 当您创建一部分附件而不仅仅是一个附件时，您需要在要添加的附件周围添加额外的{}