JavaMail实现邮件发送工具类

package org.nercita.bcp.util;

import java.io.IOException;
import java.util.Date;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.Message.RecipientType;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
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 org.nercita.bcp.system.util.CustomSystemException;
import org.nercita.core.utils.PropertyUtils;
import org.nercita.core.utils.UUIDUtils;

/**
* 邮件发送工具类
* @author zhangwenchao
*
*/
public class MailUtils {
public static Properties sysProps = null;
static{
try {
sysProps = PropertyUtils.loadProperties("application.properties");
} catch (IOException e) {
e.printStackTrace();
throw new CustomSystemException("1002", "属性文件加载异常");
}
}

public  static final String ENCODEING = sysProps.getProperty("ENCODEING"); //编码

public  static final String DN = sysProps.getProperty("DN"); //域名

private static final String PROTOCOL = sysProps.getProperty("PROTOCOL");// 协议

private static final String HOST = sysProps.getProperty("HOST"); // 服务器地址

private static final String FROM = sysProps.getProperty("FROM"); // 发件人的邮箱

private static final String USERNAME = sysProps.getProperty("USERNAME"); // 账号

private static final String PASSWORD = sysProps.getProperty("PASSWORD");; // 密码

/**
* 发送简单邮件
*/
public  static void  sendMail(String subject, String to, String content){

//1.设置邮件环境
Properties props = new Properties();
props.setProperty("mail.transport.protocol", PROTOCOL);
props.setProperty("mail.host", HOST);
props.setProperty("mail.smtp.auth", "true");

//2.获取session连接对象
Session session = Session.getInstance(props,new Authenticator() {

@Override
protected PasswordAuthentication getPasswordAuthentication() {

return new PasswordAuthentication(USERNAME,PASSWORD);
}

});
session.setDebug(true);
//3. 创建邮件
Message message = new MimeMessage(session);

try {

message.setFrom(new InternetAddress(FROM));  //设置发件人
message.setSubject(subject); //标题
message.addRecipient(RecipientType.TO, new InternetAddress(to)); //收件人
message.setSentDate(new Date()); //时间
message.setText(content);  //正文

//3. 发送邮件
Transport.send(message);

} catch (MessagingException e) {
e.printStackTrace();
throw new CustomSystemException("1001", "邮件发送异常");
}

}

/**
* 发送HTML邮件
*/
public  static void  sendHTMLMail(String subject, String to, String content){

//1.设置邮件环境
Properties props = new Properties();
props.setProperty("mail.transport.protocol", PROTOCOL);
props.setProperty("mail.host", HOST);
props.setProperty("mail.smtp.auth", "true");

//2.获取session连接对象
Session session = Session.getInstance(props,new Authenticator() {

@Override
protected PasswordAuthentication getPasswordAuthentication() {

return new PasswordAuthentication(USERNAME,PASSWORD);
}

});
session.setDebug(true);

try {
//3. 创建邮件
Message message = new MimeMessage(session);

message.setFrom(new InternetAddress(FROM));  //设置发件人
message.setSubject(subject); //标题
message.addRecipient(RecipientType.TO, new InternetAddress(to)); //收件人
message.setSentDate(new Date()); //时间

MimeBodyPart bodyPart = new MimeBodyPart();
bodyPart.setContent(content,"text/html; charset=UTF-8");

MimeMultipart mimeMultipart = new MimeMultipart();
mimeMultipart.addBodyPart(bodyPart);

message.setContent(mimeMultipart);

message.saveChanges(); //设置邮件内容与消息头一至

//3. 发送邮件
Transport.send(message);

} catch (MessagingException e) {

e.printStackTrace();
throw new CustomSystemException("1001", "邮件发送异常");
}

}

/**
* 发送含有内嵌图像资源的邮件
*/
public  static void  sendRelatedMail(String subject, String to, String content, String... relatedFilePath){

//1.设置邮件环境
Properties props = new Properties();
props.setProperty("mail.transport.protocol", PROTOCOL);
props.setProperty("mail.host", HOST);
props.setProperty("mail.smtp.auth", "true");

//2.获取session连接对象
Session session = Session.getInstance(props,new Authenticator() {

@Override
protected PasswordAuthentication getPasswordAuthentication() {

return new PasswordAuthentication(USERNAME,PASSWORD);
}

});
session.setDebug(true);

try {
//3. 创建邮件
Message message = new MimeMessage(session);

message.setFrom(new InternetAddress(FROM));  //设置发件人
message.setSubject(subject); //标题
message.addRecipient(RecipientType.TO, new InternetAddress(to)); //收件人
message.setSentDate(new Date()); //时间

//html文本信息
MimeBodyPart bodyPart1 = new MimeBodyPart();
bodyPart1.setContent(content+"<br /><img src=cid:img_1  />", "text/html; charset=UTF-8");

//图像信息
MimeBodyPart bodyPart2 = new MimeBodyPart();
bodyPart2.setDataHandler(new DataHandler(new FileDataSource(relatedFilePath[0])));
bodyPart2.setContentID("img_1");

//组装
MimeMultipart mimeMultipart = new MimeMultipart();
mimeMultipart.addBodyPart(bodyPart1);
mimeMultipart.addBodyPart(bodyPart2);
message.setContent(mimeMultipart);

//合并消息
message.saveChanges(); //设置邮件内容与消息头一至

//3. 发送邮件
Transport.send(message);

} catch (MessagingException e) {

e.printStackTrace();
throw new CustomSystemException("1001", "邮件发送异常");
}

}

/**
* 发送含有内嵌图像资源的邮件
*/
public  static void  sendAttachMail(String subject, String to, String content, String... attachFilePath){

//1.设置邮件环境
Properties props = new Properties();
props.setProperty("mail.transport.protocol", PROTOCOL);
props.setProperty("mail.host", HOST);
props.setProperty("mail.smtp.auth", "true");

//2.获取session连接对象
Session session = Session.getInstance(props,new Authenticator() {

@Override
protected PasswordAuthentication getPasswordAuthentication() {

return new PasswordAuthentication(USERNAME,PASSWORD);
}

});
session.setDebug(true);

try {
//3. 创建邮件
Message message = new MimeMessage(session);

message.setFrom(new InternetAddress(FROM));  //设置发件人
message.setSubject(subject); //标题
message.addRecipient(RecipientType.TO, new InternetAddress(to)); //收件人
message.setSentDate(new Date()); //时间

//定义Html文本信息
MimeBodyPart bodyPart1 = new MimeBodyPart();
bodyPart1.setContent(content, "text/html; charset=UTF-8");

//附件
MimeBodyPart bodyPart2 = new MimeBodyPart();
bodyPart2.setDataHandler(new DataHandler(new FileDataSource(attachFilePath[0])));
bodyPart2.setFileName(attachFilePath[0].substring(attachFilePath[0].lastIndexOf("\\")+1));

//组装
MimeMultipart mimeMultipart = new MimeMultipart();
mimeMultipart.addBodyPart(bodyPart1);
mimeMultipart.addBodyPart(bodyPart2);
message.setContent(mimeMultipart);

//合并消息
message.saveChanges(); //设置邮件内容与消息头一至

//3. 发送邮件
Transport.send(message);

} catch (MessagingException e) {
e.printStackTrace();
throw new CustomSystemException("1001", "邮件发送异常");
}

}

public static void main(String[] args) {

String activationCode  = UUIDUtils.getUUID();
activationCode = "5ff6681cce0649158b4b3a87cd944050";
String msg="<h3>点击下面链接激活账户</h3><h4><a href='"+MailUtils.DN+"/system/user/activate?code="+activationCode+"'>"+MailUtils.DN+"/system/user/activate?code="+activationCode+"</a><h4>";
MailUtils.sendHTMLMail("官方账户注册激活邮件", "zhangwenchao729@163.com", msg);
}

}