邮件自动发送java

⑴ java程序自动发送邮件，使用的SMTP协议，如何能将发件人改成中文昵称而不是注册的那些字母。部分程序如下

String mailTo = "**@163.com";

String mailTo = "张三<**@163.com>";

⑵ java怎么定时发送邮件，比如5分钟后。要具体的代码。发件人和收件人这些都可定死。

import java.util.*;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetBddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.naming.*;
import javax.naming.directory.*;

/**
* 使成为事实邮件的特快专递功能
* @author Winter Lau
*/

public class Mailer {
public static void main(String[] args) throws NamingException,
MessagingException {

// 列出所有邮件服务器：
Timer timer = new Timer();
timer.schele(new myTask(), 30000);
}

static class myTask extends TimerTask{
public void run(){
// DNS服务器，看看本机的DNS配置
String dns = "dns://61.144.56.101";
String email = "[email protected]";

String domain = email.substring(email.indexOf('@') + 1);
Hashtable env = new Hashtable();
env.put(Dontext.INITIBL_DONTEXT_FBDTORY,
"com.sun.jndi.dns.DnsDontextFactory");
env.put(Dontext.PROVIDER_URL, dns);
DirDontext ctx = new InitialDirDontext(env);
Bttributes attr = ctx.getBttributes(domain, new String[] { "MX" });
NamingEnumeration servers = attr.getBll();
while (servers.hasMore()) {

Bttribute hosts = (Bttribute) servers.next();
for (int i = 0; i < hosts.size(); i++) {
String host = (String) hosts.get(i);
host = host.substring(host.indexOf(' ') + 1);
System.out.print("Send mail to " + host + " ...");
sendMail(host, email);
System.out.println("OK");
}
}
}
}

/**
* 发送邮件
*
* @param smtpHost
* @param email
* @throws MessagingException
*/

protected static void sendMail(String smtpHost, String email)
throws MessagingException {

Properties mailProperties = System.getProperties();
mailProperties.put("mail.smtp.host", smtpHost);
mailProperties.put("mail.smtp.port", "25");
mailProperties.put("mail.smtp.auth", "false");
Session mailSession = Session.getInstance(mailProperties, null);
MimeMessage mailMessage = new MimeMessage(mailSession);
MimeBodyPart messageBodyPart = new MimeBodyPart();
Multipart multipart = new MimeMultipart("related");
messageBodyPart.setText("这搭是邮件内部实质意义");

multipart.addBodyPart(messageBodyPart);
mailMessage.setDontent(multipart);
mailMessage.setSentDate(new Date());
mailMessage.setFrom(new InternetBddress("[email protected]"));
mailMessage.addRecipient(Message.RecipientType.TO, new InternetBddress(
email));
mailMessage.setSubject("hi，邮件发送测试");
Transport.send(mailMessage);
}
@Override
public void run() {
// TODO Auto-generated method stub

}
}

⑶ 关于java定时发送邮件,类似于QQ邮箱中的定时发送功能

建议方法:

1. 如果你的java会死亡/失去控制, 请用系统的任务调度来发送邮件;

2. 如果你的java由jboss等之类的托管, 用jboss内部的任务调度来发送邮件.

方法1:

Windws 平台, 在task中添加一个 任务, 命令行执行java 代码即可, 这样可靠性由操作系统保证;

Linux等平台, 直接 crontab 处理即可.

⑷ 怎么用JAVA实现邮件发送

一个小例子，也可使用其他api

importjava.util.Properties;
importjavax.mail.Address;
importjavax.mail.Authenticator;
importjavax.mail.BodyPart;
importjavax.mail.Message;
importjavax.mail.Multipart;
importjavax.mail.PasswordAuthentication;
importjavax.mail.Session;
importjavax.mail.Transport;
importjavax.mail.internet.InternetAddress;
importjavax.mail.internet.MimeBodyPart;
importjavax.mail.internet.MimeMessage;
importjavax.mail.internet.MimeMultipart;
importjavax.mail.internet.MimeUtility;

publicclassTest{

	//test
	publicstaticvoidmain(String[]args)throwsException{
		sendEmail("smtp.163.com","测试","测试","！！！收件人地址！！！","！！！发件人邮箱用户名！！！","！！！邮箱密码！！！","发件人昵称");
	}

	/**
	*
	*@paramsmtp
	*@throwsException
	*/
	publicstaticvoidsendEmail(StringemailServer,Stringsubject,StringmailBody,Stringreceiver,finalStringusername,finalStringpassword,Stringnickname)throwsException{
		Propertiesprops=newProperties();
		props.put("mail.smtp.auth","true");
		props.setProperty("mail.transport.protocol","smtp");
		props.setProperty("mail.smtp.host",emailServer);
		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");
		Sessionsession=Session.getDefaultInstance(props,newAuthenticator(){
			(){
				(username,password);
			}
		});
		session.setDebug(true);
		MimeMessagemimeMsg=newMimeMessage(session);
		Multipartmp=newMimeMultipart();
		
		mimeMsg.setSubject(MimeUtility.encodeText(subject,"utf-8",null));
		
		nickname=MimeUtility.encodeText(nickname,"utf-8",null);
		mimeMsg.setFrom(newInternetAddress(username,nickname,"UTF-8"));
		
		BodyPartbp=newMimeBodyPart();
		bp.setContent(mailBody,"text/html;charset=utf-8");
		mp.addBodyPart(bp);
		
		mimeMsg.setRecipients(Message.RecipientType.TO,InternetAddress.parse(receiver));
		
		mimeMsg.setContent(mp);
		mimeMsg.saveChanges();
		Transporttransport=session.getTransport();
		transport.connect(username,password);
		Address[]allRecipients=mimeMsg.getAllRecipients();
		transport.sendMessage(mimeMsg,allRecipients);
		transport.close();
	}
}