/**
* 邮件工具
*/
package test;
import java.util.Date;
import java.util.Properties;
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;
/**
* @author lisanlai
*
*/
public class MailUtil {
/**
* 发送电子邮件
* @param smtpHost 发信主机
* @param receiver 邮件接收者
* @param title 邮件的标题
* @param content 邮件的内容
* @param sender 邮件发送者
* @param user 发送者邮箱用户名
* @param pwd 发送者邮箱密码
* @throws Exception
*/
public static void sendEmail(String smtpHost,String receiver,String title,String content,String sender,String user,String pwd) throws Exception{
Properties props=new Properties();
props.put("mail.host", smtpHost);//发信的主机
props.put("mail.transport.protocol", "smtp");
//props.put("mail.smtp.host",smtpHost);
props.put("mail.smtp.auth","true");
Session s=Session.getDefaultInstance(props);
s.setDebug(true);
MimeMessage message=new MimeMessage(s);
//给消息对象设置发件人/收件人/主题/发信时间
//发件人的邮箱
InternetAddress from = new InternetAddress(sender);
message.setFrom(from);
InternetAddress to=new InternetAddress(receiver);
message.setRecipient(Message.RecipientType.TO,to);
message.setSubject(title);
message.setSentDate(new Date());
//给消息对象设置内容
BodyPart mdp=new MimeBodyPart();//新建一个存放信件内容的BodyPart对象
mdp.setContent(content,"text/html;charset=gb2312");//给BodyPart对象设置内容和格式/编码方式防止邮件出现乱码
Multipart mm=new MimeMultipart();//新建一个MimeMultipart对象用来存放BodyPart对
//象(事实上可以存放多个)
mm.addBodyPart(mdp);//将BodyPart加入到MimeMultipart对象中(可以加入多个BodyPart)
message.setContent(mm);//把mm作为消息对象的内容
message.saveChanges();
Transport transport=s.getTransport("smtp");
transport.connect(smtpHost,user,pwd);//设置发邮件的网关，发信的帐户和密码，这里修改为您自己用的
transport.sendMessage(message,message.getAllRecipients());
transport.close();
}
}
测试：
package test;
public class TestMail {
/**
* @param args
*/
public static void main(String[] args) {
String smtpHost = Constants.SMTP_HOST;
String receiver = "[email protected]";
String title = Constants.TITLE;
String content = StringUtil.formatMsg(Constants.CONTENT,"admin","111111");
String sender = Constants.SENDER;
String user = Constants.SENDER_NAME;
String pwd = Constants.SENDER_PWD;
try {
System.out.println("开始发送邮件：");
MailUtil.sendEmail(smtpHost, receiver, title, "这是一个测试邮件，来自：李三来", sender,user,pwd);
} catch (Exception e) {
e.printStackTrace();
}
}
}