GO实现发送HTML的邮件

前段时间在学习GOlang的时候写了一个用于发送SMTP邮件的代码；

但是用那段代码如果发送的是HTML内容的邮件；并且邮件标题是中文的话；收到的邮件就会显示乱码；

所以这次重新换了一种办法来实现发送HTML格式的邮件；

用到的Go库

import (
    "encoding/base64"
    "fmt"
    "github.com/opesun/goquery"
    "net/mail"
    "net/smtp"
)

发送邮件的代码如下

func SendToEvernote(user, password, host, to, subject,  body string) error {
    /*
     *发送邮件到Evernote
     */

    b64 := base64.NewEncoding("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/")
    from := mail.Address{user, user}
    toMail := mail.Address{to, to}
    header := make(map[string]string)
    header["From"] = from.String()
    header["To"] = toMail.String()
    header["Subject"] = fmt.Sprintf("=?UTF-8?B?%s?=", b64.EncodeToString([]byte(subject)))
    header["MIME-Version"] = "1.0"
    header["Content-Type"] = "text/html; charset=UTF-8"
    header["Content-Transfer-Encoding"] = "base64"

    message := ""
    for k, v := range header {
        message += fmt.Sprintf("%s: %s\r\n", k, v)
    }
    message += "\r\n" + b64.EncodeToString([]byte(body))
    auth := smtp.PlainAuth("", user, password, host)
    err := smtp.SendMail(
        host+":25",
        auth,
        user,
        []string{toMail.Address},
        []byte(message),
    )

    if err != nil {
        panic(err)
    }
    return err
}

编写main()函数

func main() {
    var url = "http://www.zhihu.com/question/24859069"
    p, error := goquery.ParseUrl(url)
    if error != nil {
        panic(error)
    }
    subject := p.Find("title").Text()
    body := p.Html()

    host := "smtp.126.com"
    email := "huaisha1224@126.com"
    password := "*******"
    toEmail := "279478776@qq.com"

    fmt.Println("send email")
    err := SendToEvernote(email, password, host, toEmail, subject, body)
    if err != nil {
        fmt.Println("send mail error!")
        fmt.Println(err)
    } else {
        fmt.Println("send mail success!")
    }
}

这里用goquery来获取URL里面的titel和HTML内容用于发送邮件

    var url = "http://www.zhihu.com/question/24859069"
    p, error := goquery.ParseUrl(url)
    if error != nil {
        panic(error)
    }
    subject := p.Find("title").Text()
    body := p.Html()

上面的代码完成之后在cmd下运行go run smtp.go即可开始发送邮件了