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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright {yyyy} {name of copyright owner} 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # 基于golang的smtp包实现的邮件发送 2 | 3 | [![GoDoc](https://godoc.org/github.com/go-mailer/send?status.svg)](https://godoc.org/github.com/go-mailer/send) 4 | 5 | > 支持异步发送邮件、一对一发送、群发 6 | 7 | ## 获取 8 | 9 | ``` bash 10 | $ go get -v github.com/go-mailer/send 11 | ``` 12 | 13 | ## 使用范例(异步发送) 14 | 15 | ``` go 16 | package main 17 | 18 | import ( 19 | "bytes" 20 | "fmt" 21 | "net/mail" 22 | "sync" 23 | 24 | "github.com/go-mailer/send" 25 | ) 26 | 27 | func main() { 28 | from := mail.Address{Name: "Lyric", Address: "nianshou.tian@zjelite.com"} 29 | sender, err := send.NewSmtpSender("smtp.exmail.qq.com:25", from, "xxx") 30 | if err != nil { 31 | panic(err) 32 | } 33 | var wg sync.WaitGroup 34 | wg.Add(1) 35 | msg := &send.Message{ 36 | Subject: "异步发送邮件测试", 37 | Content: bytes.NewBufferString("

你好，异步测试邮件内容

"), 38 | To: []string{"tiannianshou@126.com"}, 39 | } 40 | err = sender.AsyncSend(msg, false, func(err error) { 41 | defer wg.Done() 42 | if err != nil { 43 | fmt.Println("发送邮件出现错误：", err) 44 | } 45 | }) 46 | if err != nil { 47 | panic(err) 48 | } 49 | wg.Wait() 50 | fmt.Println("邮件发送完成") 51 | } 52 | ``` 53 | 54 | ## License 55 | 56 | Copyright 2016.All rights reserved. 57 | 58 | Licensed under the Apache License, Version 2.0 (the "License"); 59 | you may not use this file except in compliance with the License. 60 | You may obtain a copy of the License at 61 | 62 | http://www.apache.org/licenses/LICENSE-2.0 63 | 64 | Unless required by applicable law or agreed to in writing, software 65 | distributed under the License is distributed on an "AS IS" BASIS, 66 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 67 | See the License for the specific language governing permissions and 68 | limitations under the License. 69 | 70 | -------------------------------------------------------------------------------- /send.go: -------------------------------------------------------------------------------- 1 | package send 2 | 3 | import "io" 4 | 5 | // Message 邮件发送数据 6 | type Message struct { 7 | Subject string // 标题 8 | Content io.Reader // 支持html的消息主体 9 | To []string // 邮箱地址 10 | Extension map[string]string // 发送邮件消息体扩展项 11 | } 12 | 13 | // Sender 提供邮件发送接口 14 | type Sender interface { 15 | // Send 发送邮件 16 | // msg 邮件发送数据 17 | // isMass 是否是群发,默认为一对一发送 18 | Send(msg *Message, isMass bool) error 19 | 20 | // AsyncSend 异步发送邮件 21 | // msg 邮件发送数据 22 | // isMass 是否是群发,默认为一对一发送 23 | // handle 发送完成之后的处理函数，如果发送失败,则返回error 24 | AsyncSend(msg *Message, isMass bool, handle func(err error)) error 25 | } 26 | -------------------------------------------------------------------------------- /smtp.go: -------------------------------------------------------------------------------- 1 | package send 2 | 3 | import ( 4 | "bytes" 5 | "fmt" 6 | "io" 7 | "mime" 8 | "net" 9 | "net/mail" 10 | "net/smtp" 11 | ) 12 | 13 | // NewSmtpSender 创建基于smtp的邮件发送实例(使用PlainAuth) 14 | // addr 服务器地址 15 | // from 发送者 16 | // authPwd 验证密码 17 | // 如果创建实例发生异常，则返回错误 18 | func NewSmtpSender(addr string, from mail.Address, authPwd string) (Sender, error) { 19 | smtpCli := &SmtpClient{ 20 | addr: addr, 21 | from: from, 22 | } 23 | host, _, err := net.SplitHostPort(addr) 24 | if err != nil { 25 | return nil, err 26 | } 27 | smtpCli.auth = smtp.PlainAuth("", from.Address, authPwd, host) 28 | return smtpCli, nil 29 | } 30 | 31 | // SmtpClient 使用smtp发送邮件 32 | type SmtpClient struct { 33 | addr string 34 | from mail.Address 35 | auth smtp.Auth 36 | } 37 | 38 | // Send 发送邮件 39 | func (this *SmtpClient) Send(msg *Message, isMass bool) (err error) { 40 | if isMass { 41 | err = this.massSend(msg) 42 | } else { 43 | err = this.oneSend(msg) 44 | } 45 | return 46 | } 47 | 48 | // AsyncSend 异步发送邮件 49 | func (this *SmtpClient) AsyncSend(msg *Message, isMass bool, handle func(err error)) error { 50 | go func() { 51 | err := this.Send(msg, isMass) 52 | handle(err) 53 | }() 54 | return nil 55 | } 56 | 57 | // oneSend 一对一按顺序发送 58 | func (this *SmtpClient) oneSend(msg *Message) error { 59 | for _, addr := range msg.To { 60 | header := this.getHeader(msg.Subject) 61 | header["To"] = addr 62 | if msg.Extension != nil { 63 | for k, v := range msg.Extension { 64 | header[k] = v 65 | } 66 | } 67 | data := this.getData(header, msg.Content) 68 | err := smtp.SendMail(this.addr, this.auth, this.from.Address, []string{addr}, data) 69 | if err != nil { 70 | return err 71 | } 72 | } 73 | return nil 74 | } 75 | 76 | // massSend 群发邮件 77 | func (this *SmtpClient) massSend(msg *Message) error { 78 | header := this.getHeader(msg.Subject) 79 | if msg.Extension != nil { 80 | for k, v := range msg.Extension { 81 | header[k] = v 82 | } 83 | } 84 | data := this.getData(header, msg.Content) 85 | return smtp.SendMail(this.addr, this.auth, this.from.Address, msg.To, data) 86 | } 87 | 88 | func (this *SmtpClient) getHeader(subject string) map[string]string { 89 | header := make(map[string]string) 90 | header["From"] = this.from.String() 91 | header["Subject"] = mime.QEncoding.Encode("utf-8", subject) 92 | header["Mime-Version"] = "1.0" 93 | header["Content-Type"] = "text/html;charset=utf-8" 94 | header["Content-Transfer-Encoding"] = "Quoted-Printable" 95 | return header 96 | } 97 | 98 | func (this *SmtpClient) getData(header map[string]string, body io.Reader) []byte { 99 | buf := new(bytes.Buffer) 100 | for k, v := range header { 101 | fmt.Fprintf(buf, "%s: %s\r\n", k, v) 102 | } 103 | fmt.Fprintf(buf, "\r\n") 104 | io.Copy(buf, body) 105 | return buf.Bytes() 106 | } 107 | -------------------------------------------------------------------------------- /smtp_test.go: -------------------------------------------------------------------------------- 1 | package send 2 | 3 | import ( 4 | "bytes" 5 | "net/mail" 6 | "sync" 7 | "testing" 8 | ) 9 | 10 | var ( 11 | Host = "smtp.exmail.qq.com:25" 12 | From = mail.Address{Name: "Lyric", Address: "nianshou.tian@zjelite.com"} 13 | FromPwd = "xxx" 14 | ) 15 | 16 | func TestSend(t *testing.T) { 17 | sender, err := NewSmtpSender(Host, From, FromPwd) 18 | if err != nil { 19 | t.Error(err) 20 | return 21 | } 22 | msg := &Message{ 23 | Subject: "同步发送邮件测试", 24 | Content: bytes.NewBufferString("

你好，同步测试邮件内容

"), 25 | To: []string{"tiannianshou@126.com"}, 26 | } 27 | err = sender.Send(msg, false) 28 | if err != nil { 29 | t.Error(err) 30 | } 31 | } 32 | 33 | func TestAsyncSend(t *testing.T) { 34 | sender, err := NewSmtpSender(Host, From, FromPwd) 35 | if err != nil { 36 | t.Error(err) 37 | return 38 | } 39 | var wg sync.WaitGroup 40 | wg.Add(1) 41 | msg := &Message{ 42 | Subject: "异步发送邮件测试", 43 | Content: bytes.NewBufferString("

你好，异步测试邮件内容

"), 44 | To: []string{"tiannianshou@126.com"}, 45 | } 46 | err = sender.AsyncSend(msg, false, func(err error) { 47 | defer wg.Done() 48 | if err != nil { 49 | t.Error(err) 50 | } 51 | }) 52 | if err != nil { 53 | t.Error(err) 54 | } 55 | wg.Wait() 56 | } 57 | --------------------------------------------------------------------------------