java mail发送邮件
首先需要pom中引入java mail
<dependency> <groupId>javax.mail</groupId> <artifactId>mail</artifactId> <version>1.4.7</version> </dependency>
1、邮件发送需要的常量定义
package cn.com.mail;
/**
* 邮件发送需要的常量定义
*
* @Description: TODO
* @author wenminggao
* @date 2015年6月2日 下午2:55:39
*
*/
public class EmailConst {
/** 常见的邮件发送协议地址 **/
public static final String SMTP_QQ = "smtp.qq.com";
public static final String SMTP_163 = "smtp.163.com";
public static final String SMTP_126 = "smtp.126.com";
public static final String SMTP_SINA = "smtp.sina.com";
public static final String SMTP_GMAIL = "smtp.gmail.com";
}
2、邮件发送处理工具类
package cn.com.mail;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeUtility;
/**
* 邮件发送处理工具类
*
* @Description: TODO
* @author wenminggao
* @date 2015年6月2日 下午2:55:50
*
*/
public class EmailHandle {
/** 邮件对象 **/
private MimeMessage mimeMsg;
/** 发送邮件的Session会话 **/
private Session session;
/** 邮件发送时的一些配置信息的一个属性对象 **/
private Properties props;
/** 发件人的用户名 **/
private String sendUserName;
/** 发件人密码 **/
private String sendUserPass;
/** 附件添加的组件 **/
private Multipart mp;
/** 存放附件文件 **/
private List<FileDataSource> files = new LinkedList<FileDataSource>();
public EmailHandle(String smtp) {
sendUserName = "";
sendUserPass = "";
setSmtpHost(smtp);
createMimeMessage();
}
private void setSmtpHost(String hostName) {
if (props == null) {
props = System.getProperties();
}
props.put("mail.smtp.host", hostName);
}
public boolean createMimeMessage() {
try {
/** 用props对象来创建并初始化session对象 **/
session = Session.getDefaultInstance(props, null);
/** 用session对象来创建并初始化邮件对象 **/
mimeMsg = new MimeMessage(session);
/** 生成附件组件的实例 **/
mp = new MimeMultipart();
return true;
} catch (Exception e) {
System.err.println("获取邮件会话对象时发生错误！" + e);
return false;
}
}
/**
* 设置SMTP的身份认证
*/
public void setNeedAuth(boolean need) {
if (props == null) {
props = System.getProperties();
}
if (need) {
props.put("mail.smtp.auth", "true");
} else {
props.put("mail.smtp.auth", "false");
}
}
/**
* 进行用户身份验证时，设置用户名和密码
*/
public void setNamePass(String name, String pass) {
sendUserName = name;
sendUserPass = pass;
}
/**
* 设置邮件主题
*
* @param mailSubject
* @return
*/
public boolean setSubject(String mailSubject) {
try {
mimeMsg.setSubject(mailSubject);
return true;
} catch (Exception e) {
return false;
}
}
/**
* 设置邮件内容,并设置其为文本格式或HTML文件格式，编码方式为UTF-8
*
* @param mailBody
* @return
*/
public boolean setBody(String mailBody) {
try {
BodyPart bp = new MimeBodyPart();
bp.setContent("<meta http-equiv=Content-Type content=text/html; charset=UTF-8>" + mailBody, "text/html;charset=UTF-8");
/** 在组件上添加邮件文本 **/
mp.addBodyPart(bp);
} catch (Exception e) {
System.err.println("设置邮件正文时发生错误！" + e);
return false;
}
return true;
}
/**
* 增加发送附件
*
* @param filename
* 邮件附件的地址，只能是本机地址而不能是网络地址，否则抛出异常
* @return
*/
public boolean addFileAffix(String filename) {
try {
BodyPart bp = new MimeBodyPart();
FileDataSource fileds = new FileDataSource(filename);
bp.setDataHandler(new DataHandler(fileds));
/** 解决附件名称乱码 **/
bp.setFileName(MimeUtility.encodeText(fileds.getName(), "UTF-8", null));
/** 添加附件 **/
mp.addBodyPart(bp);
files.add(fileds);
return true;
} catch (Exception e) {
System.err.println("增加邮件附件<" + filename + ">时发生错误：" + e);
return false;
}
}
/**
* 删除添加的附件
*
* @return
*/
public boolean delFileAffix() {
try {
FileDataSource fileds = null;
for (Iterator<FileDataSource> it = files.iterator(); it.hasNext();) {
fileds = it.next();
if (fileds != null && fileds.getFile() != null) {
fileds.getFile().delete();
}
}
return true;
} catch (Exception e) {
System.err.println("删除邮件附件发生错误：" + e);
return false;
}
}
/**
* 设置发件人地址
*
* @param from
* 发件人地址
* @return
*/
public boolean setFrom(String from) {
try {
mimeMsg.setFrom(new InternetAddress(from));
return true;
} catch (Exception e) {
return false;
}
}
/**
* 设置收件人地址
*
* @param to收件人的地址
* @return
*/
public boolean setTo(String to) {
try {
if (to == null) {
return false;
}
mimeMsg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to));
return true;
} catch (Exception e) {
return false;
}
}
/**
* 发送抄送
*
* @param copyto
* @return
*/
public boolean setCopyTo(String copyto) {
try {
if (copyto == null) {
return false;
}
mimeMsg.setRecipients(javax.mail.Message.RecipientType.CC, InternetAddress.parse(copyto));
return true;
} catch (Exception e) {
return false;
}
}
/**
* 发送邮件
*
* @return
*/
public boolean sendEmail() throws Exception {
System.out.println("正在发送邮件....");
mimeMsg.setContent(mp);
mimeMsg.saveChanges();
Session mailSession = Session.getInstance(props, null);
Transport transport = mailSession.getTransport("smtp");
/** 连接邮件服务器并进行身份验证 **/
transport.connect((String) props.get("mail.smtp.host"), sendUserName, sendUserPass);
/** 发送邮件 **/
transport.sendMessage(mimeMsg, mimeMsg.getRecipients(Message.RecipientType.TO));
transport.close();
System.out.println("发送邮件成功！");
return true;
}
}
3、邮件发送工具类
package cn.com.mail;
import java.util.List;
/**
* 邮件发送工具类
*
* @Description: TODO
* @author wenminggao
* @date 2015年6月2日 下午2:56:09
*
*/
public class EmailUtils {
/**
* 发送邮件
*
* @param smtp
* 邮件协议
* @param fromAddress
* 发送人地址
* @param fromPass
* 发送人密码
* @param toaddress
* 收件人地址
* @param subject
* 发送主题
* @param content
* 发送内容
* @throws Exception
*/
public static void send(String smtp, String fromAddress, String fromPass, String toAddress, String subject, String content) {
try {
System.out.println("开始向" + toAddress + "发送邮件");
EmailHandle emailHandle = new EmailHandle(smtp);
emailHandle.setFrom(fromAddress);
emailHandle.setNeedAuth(true);
emailHandle.setSubject(subject);
emailHandle.setBody(content);
emailHandle.setTo(toAddress);
emailHandle.setFrom(fromAddress);
emailHandle.setNamePass(fromAddress, fromPass);
emailHandle.sendEmail();
System.out.println("邮件发送结束!");
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 发送邮件
*
* @param smtp
* 邮件协议
* @param fromAddress
* 发送人地址
* @param fromPass
* 发送人密码
* @param toAddress
* 收件人地址
* @param ccAdress
* 抄送人地址
* @param subject
* 发送主题
* @param content
* 发送内容
* @throws Exception
*/
public static void send(String smtp, String fromAddress, String fromPass, String toAddress, String ccAdress, String subject, String content) {
try {
System.out.println("开始向" + toAddress + "发送邮件");
EmailHandle emailHandle = new EmailHandle(smtp);
emailHandle.setFrom(fromAddress);
emailHandle.setNeedAuth(true);
emailHandle.setSubject(subject);
emailHandle.setBody(content);
emailHandle.setTo(toAddress);
/** 添加抄送 **/
if (!"".equals(ccAdress) && ccAdress != null) {
emailHandle.setCopyTo(ccAdress);
}
emailHandle.setFrom(fromAddress);
emailHandle.setNamePass(fromAddress, fromPass);
emailHandle.sendEmail();
System.out.println("邮件发送结束!");
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 发送邮件
*
* @param smtp
* 邮件协议
* @param fromAddress
* 发送人地址
* @param fromPass
* 发送人密码
* @param toaddress
* 收件人地址
* @param subject
* 发送主题
* @param content
* 发送内容
* @throws Exception
*/
public static void send(String smtp, String fromAddress, String fromPass, String toAddress, String subject, String content, List<String> fileList) {
try {
System.out.println("开始向" + toAddress + "发送邮件");
EmailHandle emailHandle = new EmailHandle(smtp);
emailHandle.setFrom(fromAddress);
emailHandle.setNeedAuth(true);
emailHandle.setSubject(subject);
emailHandle.setBody(content);
emailHandle.setTo(toAddress);
emailHandle.setFrom(fromAddress);
emailHandle.setNamePass(fromAddress, fromPass);
/** 附件文件路径 **/
for (String file : fileList) {
emailHandle.addFileAffix(file);
}
emailHandle.sendEmail();
System.out.println("邮件发送结束!");
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 发送邮件
*
* @param smtp
* 邮件协议
* @param fromAddress
* 发送人地址
* @param fromPass
* 发送人密码
* @param toAddress
* 收件人地址
* @param ccAdress
* 抄送人地址
* @param subject
* 发送主题
* @param content
* 发送内容
* @throws Exception
*/
public static void send(String smtp, String fromAddress, String fromPass, String toAddress, String ccAdress, String subject, String content, List<String> fileList) {
try {
System.out.println("开始向" + toAddress + "发送邮件");
EmailHandle emailHandle = new EmailHandle(smtp);
emailHandle.setFrom(fromAddress);
emailHandle.setNeedAuth(true);
emailHandle.setSubject(subject);
emailHandle.setBody(content);
emailHandle.setTo(toAddress);
/** 添加抄送 **/
if (!"".equals(ccAdress) && ccAdress != null) {
emailHandle.setCopyTo(ccAdress);
}
emailHandle.setFrom(fromAddress);
emailHandle.setNamePass(fromAddress, fromPass);
/** 附件文件路径 **/
for (String file : fileList) {
emailHandle.addFileAffix(file);
}
emailHandle.sendEmail();
System.out.println("邮件发送结束!");
} catch (Exception e) {
e.printStackTrace();
}
}
}
测试代码：
package cn.com.test;
import cn.com.mail.EmailConst;
import cn.com.mail.EmailUtils;
public class TestMail {
public static void main(String[] args) {
EmailUtils.send(EmailConst.SMTP_163, "[email protected]", "*******", "[email protected]", "测试", "测试邮件");
}
}