Java发送邮件

package com.localhotel.mail;

import java.util.Date;
import java.util.Properties;

import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.NoSuchProviderException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

import org.junit.Test;

public class MailUtil {
static int port=25;
static String server="smtp.gmail.com";
static String from="[e-mail]";
static String user="hailongshih";
static String password="******";
@Test
public void sendMail(){
sendEmail("[e-mail]","First Mail","Test Mail");
}

public static void sendEmail(String email,String subject,String body){
try{
Properties props=new Properties();
props.setProperty("mail.transport.protocol","smtp");   
props.put("mail.smtp.host",server);
props.put("mail.smtp.port",String.valueOf(port));
props.put("mail.smtp.auth","true");
if(server.indexOf("smtp.gmail.com")>=0)
    {
props.setProperty("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.setProperty("mail.smtp.socketFactory.fallback", "false");
props.setProperty("mail.smtp.port", "465");
props.setProperty("mail.smtp.socketFactory.port", "465");
    }
//Transport transport=null;
MyAuthenticator myauth = new MyAuthenticator(user, password);
Session session=Session.getDefaultInstance(props,myauth);
session.setDebug(true);
//transport=session.getTransport("smtp");
//transport.connect(server,user,password);
MimeMessage msg=new MimeMessage(session);
msg.setSentDate(new Date());
InternetAddress fromAddress=new InternetAddress(from);
msg.setFrom(fromAddress);
InternetAddress[] toAddress=new InternetAddress[1];
toAddress[0]=new InternetAddress(email);
msg.setRecipients(Message.RecipientType.TO,toAddress);
msg.setSubject(subject,"GBK");
msg.setText(body,"GBK");
msg.saveChanges();
//transport.sendMessage(msg,msg.getAllRecipients());System.out.print("ok");
Transport.send(msg);
}catch(NoSuchProviderException e){
e.printStackTrace();
}catch(MessagingException e){
e.printStackTrace();
}


}
}


另外新建
import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;

public class MyAuthenticator extends Authenticator {

private String strUser;
private String strPwd;
public MyAuthenticator(String user, String password) {
this.strUser = user;
this.strPwd = password;
}

protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(strUser, strPwd);
}

}

添加Junit执行测试。