600字范文 > 通过javaMail发送邮件可选添加多个收件人密送抄送多个附件

通过javaMail发送邮件可选添加多个收件人密送抄送多个附件

时间：2020-09-13 22:08:58

通过javaMail发送邮件，可选添加多个收件人，密送，抄送，多个附件

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自己通过学习多人的代码，并整理了一个简单，调用方便的通过javaMail发送邮件。只需填写发件邮箱地址，密码；收件人地址，附件，选择是否保存，设置自己发送邮件时的昵称就ok了。代码自动匹配设置smtp服务地址和端口。

发送邮件需要邮箱地址和密码，开启POP3/IMAP/SMTP/Exchange/CardDAV/CalDAV服务。各大邮箱使用外部登录验证的方式不一样，有些需要使用授权码登录链接，有些只需要邮箱登录密码，这个得根据你使用的邮箱服务平台的规定了。这里我收集了下面的邮箱smtp服务地址和端口，【QQ、Foxmail、139、126、163、Google(gmail)、Exchange、Outlook、、】这些足以够用了吧！不多说，看代码。

使用方法

public static void main(String[] args) throws Exception {

List<String> map = new ArrayList<>();

map.add("123456@");

map.add("456789@");

map.add("hahaha123@");

new SendEmail("hahaha123@", "密码")

.setDebug(true)

.setMyNickName("这是我的昵称")

.addFile("C:/Users/25171/Pictures/timg.jpg")//添加附件

.addFile("C:/Users/25171/Desktop/QQ图片0317192741.jpg")

// .addFile(List<String> list)//添加附件集合

.setSaveEmail("C:/User/2517/Desktop/name.eml")//保存邮件

.addRecipientT0("251716795@")//添加收件人地址

// .addRecipientT0(map)//添加收件人地址集合

// .addRecipientCC(map)//添加密送收件人地址

// .addRecipientBCC(map)//添加抄送收件人地址

.createMail("标题", "发送的内容", "text/html;charset=utf-8")

.sendEmail(new SendEmail.Callback() {

@Override

public void success(String s) {

System.out.println(s);//发送完成后回调接口

}

@Override

public void error(String s, Exception e) {

System.out.println(s);

e.printStackTrace();//异常失败的回调接口

}

});

}

主体工具代码

package com.sai.mail;

import javax.activation.DataHandler;

import javax.activation.FileDataSource;

import javax.mail.*;

import javax.mail.internet.*;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.OutputStream;

import java.io.UnsupportedEncodingException;

import java.util.*;

public class SendEmail {

public interface Callback {

void success(String s);

void error(String s, Exception e);

}

private Callback callback; //信息回调接口

private Properties properties;//系统属性对象

private String mailAccount; //发送邮箱地址

private String mailPassword; //验证密码

private Session session; //邮件会话对象

private String myNickName; //昵称，发送时自己的昵称

private boolean debug = false;//debug模式

private boolean isSaveEmail = false;

private String pathName = "exc.eml";//邮件保存时的

public SendEmail(String mailAccount, String mailPassword) {

this.mailAccount = mailAccount;

this.mailPassword = mailPassword;

}

public SendEmail setSaveEmail(String pathName) {

isSaveEmail = true;

this.pathName = pathName;

return this;

}

private List<String> recipientT0List = new ArrayList<>();//收件地址

private List<String> recipientCCList = new ArrayList<>();//密送地址

private List<String> recipientBCCList = new ArrayList<>();//抄送地址

private List<String> filePath = new ArrayList<>();//附件

public SendEmail setDebug(boolean sessionDebug) {

debug = sessionDebug;

return this;

}

/*** 设置多人收件人地址 */

public SendEmail addRecipientT0(String address) {

recipientT0List.add(address);

return this;

}

public SendEmail addRecipientCC(String address) {

recipientCCList.add(address);

return this;

}

public SendEmail addRecipientBCC(String address) {

recipientBCCList.add(address);

return this;

}

public SendEmail addRecipientT0(List<String> address) {

recipientT0List.addAll(address);

return this;

}

public SendEmail addRecipientCC(List<String> address) {

recipientCCList.addAll(address);

return this;

}

public SendEmail addRecipientBCC(List<String> address) {

recipientBCCList.addAll(address);

return this;

}

/***添加文件***/

public SendEmail addFile(String filePath) {

this.filePath.add(filePath);

return this;

}

public SendEmail addFile(List<String> list) {

this.filePath.addAll(list);

return this;

}

/****昵称设置**/

public SendEmail setMyNickName(String name) {

myNickName = name;

return this;

}

private MimeMessage message;

/**

* @param title 主题

* @param datas 内容

* @param type 内容格式类型 text/html;charset=utf-8

* @return s

*/

public SendEmail createMail(String title, String datas, String type) {

if (mailAccount.length() == 0 || mailAccount.equals(null)) {

System.err.println("发件地址不存在！");

return this;

}

if (myNickName == null) {

myNickName = mailAccount;

}

getProperties();

if (!sync) return this;

try {

message = new MimeMessage(session);

// 设置发送邮件地址,param1 代表发送地址 param2 代表发送的名称(任意的) param3 代表名称编码方式

message.setFrom(new InternetAddress(mailAccount, myNickName, "utf-8"));

setRecipientT0(); //添加接收人地址

setRecipientCC(); //添加抄送接收人地址

setRecipientBCC(); //添加密送接收人地址

BodyPart messageBodyPart = new MimeBodyPart(); // 创建消息部分

Multipart multipart = new MimeMultipart(); // 创建多重消息

messageBodyPart.setContent(datas, type); // 消息内容

multipart.addBodyPart(messageBodyPart); // 设置文本消息部分

addFile(multipart); //附件部分

// 发送完整消息

message.setContent(multipart);

message.setSubject(title); // 设置邮件主题

message.setSentDate(new Date()); // 设置发送时间

message.saveChanges(); // 保存上面的编辑内容

// 将上面创建的对象写入本地

saveEmail(title);

} catch (Exception e) {

if (callback != null)

callback.error("message error ", e);

sync = false;

}

return this;

}

public void sendEmail(Callback callback) {

this.callback = callback;

if (!sync)

return;

try {

Transport trans = session.getTransport();

// 链接邮件服务器

trans.connect(mailAccount, mailPassword);

// 发送信息

trans.sendMessage(message, message.getAllRecipients());

// 关闭链接

trans.close();

if (callback != null)

callback.success("发送完成");

} catch (Exception e) {

if (callback != null)

callback.error("发送异常", e);

}

private void saveEmail(String title) throws IOException, MessagingException {

OutputStream out = null;

if (isSaveEmail) {

if (pathName.length() == 0 || pathName.equals(null)) {

out = new FileOutputStream(title + ".eml");

} else {

String path[] = pathName.split("\\.");

out = new FileOutputStream(path[0] + title + ".eml");

}

message.writeTo(out);

out.flush();

out.close();

}

/*** 设置收件人地址信息*/

private void setRecipientT0() throws MessagingException, UnsupportedEncodingException {

if (recipientT0List.size() > 0) {

InternetAddress[] sendTo = new InternetAddress[recipientT0List.size()];

for (int i = 0; i < recipientT0List.size(); i++) {

System.out.println("发送到:" + recipientT0List.get(i));

sendTo[i] = new InternetAddress(recipientT0List.get(i), "", "UTF-8");

}

message.addRecipients(MimeMessage.RecipientType.TO, sendTo);

}

/***设置密送地址**/

private void setRecipientCC() throws MessagingException, UnsupportedEncodingException {

if (recipientCCList.size() > 0) {

InternetAddress[] sendTo = new InternetAddress[recipientCCList.size()];

for (int i = 0; i < recipientCCList.size(); i++) {

System.out.println("发送到:" + recipientCCList.get(i));

sendTo[i] = new InternetAddress(recipientCCList.get(i), "", "UTF-8");

}

message.addRecipients(, sendTo);

}

/***设置抄送邮件地址**/

private void setRecipientBCC() throws MessagingException, UnsupportedEncodingException {

if (recipientBCCList.size() > 0) {

InternetAddress[] sendTo = new InternetAddress[recipientBCCList.size()];

for (int i = 0; i < recipientBCCList.size(); i++) {

System.out.println("发送到:" + recipientBCCList.get(i));

sendTo[i] = new InternetAddress(recipientBCCList.get(i), "", "UTF-8");

}

message.addRecipients(MimeMessage.RecipientType.BCC, sendTo);

}

/***添加附件****/

private void addFile(Multipart multipart) throws MessagingException, UnsupportedEncodingException {

if (filePath.size() == 0)

return;

for (int i = 0; i < filePath.size(); i++) {

MimeBodyPart messageBodyPart = new MimeBodyPart();

// 选择出每一个附件名

String pathName = filePath.get(i);

System.out.println("添加附件 ====>" + pathName);

// 得到数据源

FileDataSource fds = new FileDataSource(pathName);

// 得到附件本身并至入BodyPart

messageBodyPart.setDataHandler(new DataHandler(fds));

//采用这去除中文乱码

messageBodyPart.setFileName(MimeUtility.encodeText(fds.getName()));

multipart.addBodyPart(messageBodyPart);

}

private boolean sync = true;

/**

* 规定设置传输协议为smtp 根据输入的邮箱地址自动匹配smtp服务器地址与smtp服务器地址端口

*/

private void getProperties() {

String account[] = mailAccount.split("@");

String mailTpye = "";

try {

mailTpye = account[1];

} catch (Exception e) {

System.err.println("不正确的邮箱地址！");

sync = false;

return;

}

String SMTPHost = "";//smtp服务器地址

String SMTPPort = "";//smtp服务器地址端口

switch (mailTpye) {

case "":

SMTPHost = "";

SMTPPort = "465";

break;

case "":

SMTPHost = "";

SMTPPort = "25";

break;

case "":

SMTPHost = "";

SMTPPort = "25";

break;

case "":

SMTPHost = "";

SMTPPort = "465";

break;

case "":

SMTPHost = "";

SMTPPort = "25";

break;

case "":

SMTPHost = "";

SMTPPort = "25";

break;

case "":

SMTPHost = "";

SMTPPort = "25";

break;

case "":

SMTPHost = "";

SMTPPort = "465";

break;

case "":

SMTPHost = "";

SMTPPort = "465";

break;

default:

System.err.println("暂时不支持此账号作为服务账号发送邮件！");

return;

}

Properties prop = new Properties();

prop.setProperty("mail.transport.protocol", "smtp"); // 设置邮件传输采用的协议smtp

prop.setProperty("mail.smtp.host", SMTPHost);// 设置发送人邮件服务器的smtp地址

prop.setProperty("mail.smtp.auth", "true"); // 设置验证机制

prop.setProperty("mail.smtp.port", SMTPPort);// SMTP 服务器的端口 (非 SSL 连接的端口一般默认为 25, 可以不添加, 如果开启了 SSL 连接,

prop.setProperty("mail.smtp.socketFactory.class", ".ssl.SSLSocketFactory");

prop.setProperty("mail.smtp.socketFactory.fallback", "false");

prop.setProperty("mail.smtp.socketFactory.port", SMTPPort);

properties = prop;

session = Session.getInstance(properties);

session.setDebug(debug);

}

完成这些需要导入的重要jar包：mail-1.4.1.jar(或者更高的版本) 和 activation 包，jdk1.8中rt.jar包含的activation包。所以jdk1.8的就无需考虑activation怎么下载了。

完成解析分配服务器地址和端口的主要函数（写的不怎么好）：

private void getProperties() {

String account[] = mailAccount.split("@");

String mailTpye = "";

try {

mailTpye = account[1];

} catch (Exception e) {

System.err.println("不正确的邮箱地址！");

sync = false;

return;

}

String SMTPHost = "";//smtp服务器地址

String SMTPPort = "";//smtp服务器地址端口

switch (mailTpye) {

case "":

SMTPHost = "";

SMTPPort = "465";

break;

case "":

SMTPHost = "";

SMTPPort = "25";

break;

case "":

SMTPHost = "";

SMTPPort = "25";

break;

case "":

SMTPHost = "";

SMTPPort = "465";

break;

case "":

SMTPHost = "";

SMTPPort = "25";

break;

case "":

SMTPHost = "";

SMTPPort = "25";

break;

case "":

SMTPHost = "";

SMTPPort = "25";

break;

case "":

SMTPHost = "";

SMTPPort = "465";

break;

case "":

SMTPHost = "";

SMTPPort = "465";

break;

default:

System.err.println("暂时不支持此账号作为服务账号发送邮件！");

return ;

}

Properties prop = new Properties();

prop.setProperty("mail.transport.protocol", "smtp"); // 设置邮件传输采用的协议smtp

prop.setProperty("mail.smtp.host", SMTPHost);// 设置发送人邮件服务器的smtp地址

prop.setProperty("mail.smtp.auth", "true"); // 设置验证机制

prop.setProperty("mail.smtp.port", SMTPPort);// SMTP 服务器的端口 (非 SSL 连接的端口一般默认为 25, 可以不添加

prop.setProperty("mail.smtp.socketFactory.class", ".ssl.SSLSocketFactory");

prop.setProperty("mail.smtp.socketFactory.fallback", "false");

prop.setProperty("mail.smtp.socketFactory.port", SMTPPort);

properties = prop;

session = Session.getInstance(properties);

session.setDebug(debug);

}

最后看看效果：

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通过javaMail发送邮件 可选添加多个收件人 密送 抄送 多个附件

通过javaMail发送邮件，可选添加多个收件人，密送，抄送，多个附件

通过javaMail发送邮件可选添加多个收件人密送抄送多个附件