JavaMail发送邮件实例

JavaMail
配置步骤

准备工作：

我的开发环境：
MyEclipse6.5
、
JDK1.6

配置步骤：

1.
把
activation.jar
、
dsn.jar
、
imap.jar
、
mailapi.jar
、
pop3.jar
和
smtp.jar
加入
lib
目录下。

2.
删除
JavaEE5 Libraries
类库。

3.
加入
SendAttachment.java
类，并运行。

代码：

import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Address;
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;
public class SendAttachment{
private String MailHost;            //邮件服务器
private String UserName;              //用户名
private String PassWord;              //用户密码
private MimeMessage mimeMsg;          //MIME邮件对象
private Session session;              //邮件会话对象
private Properties props;             //系统属性
private Multipart mp;                 //Multipart对象,邮件内容,标题,附件等内容均添加到其中后再生成MimeMessage对象
public SendAttachment(){
}

public SendAttachment(String smtp){
MailHost = "smtp.163.com";
setSmtpHost(smtp);
createMimeMessage();
}
/**
*   @param   hostName   String
*/
public void setSmtpHost(String hostName){
System.out.println("设置系统属性：mail.smtp.host = " + hostName);
if(props == null){                    //获得系统属性对象
props = System.getProperties();
}
props.put("mail.smtp.host", hostName); //设置SMTP主机 hostName="smtp.163.com";
}

public boolean createMimeMessage() {
try{
System.out.println("准备获取邮件会话对象！");
//session = Session.getDefaultInstance(props, null);   //获得邮件会话对象
session = Session.getInstance( props, null);
}catch(Exception e){
System.err.println("获取邮件会话对象时发生错误！" + e);
return false;
}
System.out.println("准备创建MIME邮件对象！");
try{
mimeMsg = new MimeMessage(session);   //创建MIME邮件对象
mp = new MimeMultipart();
return true;
}catch(Exception e){
System.err.println("创建MIME邮件对象失败！" + e);
return false;
}
}
public void setNeedAuth(boolean need){
System.out.println("设置smtp身份认证：mail.smtp.auth = " + need);
if(props == null){
props = System.getProperties();
}
if(need){
props.put("mail.smtp.auth", "true");
}else{
props.put("mail.smtp.auth","false");
}
}

/**
* 设置用户名和密码
*
* @param String name 用户名
*
* @param String pass 密码
*
*/
public void setNamePass(String name, String pass){
UserName = name;
PassWord = pass;
}

/**
* 设置邮件主题
*
* @param String mailsubject 邮件主题
*
* @return boolean
*/
public boolean setSubject(String mailSubject){
System.out.println("设置邮件主题！");
try{
mimeMsg.setSubject(mailSubject);
return true;
}catch(Exception e){
System.err.println("设置邮件主题发生错误！");
return false;
}
}

/**
* 邮件主体
*
* @param String mailbody 邮件主体
*
* @return boolean
*/
public boolean setBody(String mailBody){
try{
BodyPart bp = new MimeBodyPart();
bp.setContent("<meta http-equiv=Content-Type content=text/html;charset=gb2312>" + mailBody, "text/html;charset=GB2312");
mp.addBodyPart(bp);
return true;
}catch(Exception e){
System.err.println("设置邮件正文时发生错误！" + e);
return false;
}
}

/**
* 添加附件
*
* @param String filename  文件名
*
* @return boolean
*/
public boolean addFileAffix(String filename){
System.out.println("增加邮件附件：" + filename);
try{
BodyPart bp = new MimeBodyPart();
FileDataSource fileds = new FileDataSource(filename);
bp.setDataHandler(new DataHandler(fileds));
bp.setFileName(fileds.getName());
mp.addBodyPart(bp);
return true;
}catch(Exception e){
System.err.println("增加邮件附件：" + filename+"发生错误！" + e);
return false;
}
}

/**
* 发件人邮箱
*
* @param String from 发件人邮箱
*
* @return boolean
*/
public boolean setFrom(String from) {
System.out.println("设置发信人！");
try{
mimeMsg.setFrom(new InternetAddress(from));   //设置发信人
return true;
}catch(Exception e){
return false;
}
}

/**
* 收件人
*
* @param String to 收件人邮箱
*
* @return boolean
*/
public boolean setTo(String to){
if(to == null)return false;
try{
mimeMsg.setRecipients(Message.RecipientType.TO,InternetAddress.parse(to));
return true;
}catch(Exception e){
return false;
}
}

/**
* 抄送邮件
*
* @param String 抄送地址
*
* @return boolean
*/
public boolean setCopyTo(String copyto){
if(copyto == null)return false;
try{
imeMsg.setRecipients(Message.RecipientType.CC, (Address[])InternetAddress.parse(copyto));
return true;
}catch(Exception e){
return false;
}
}

/**
*
*  发送邮件
*
*/
public boolean sendout(){
try{
mimeMsg.setContent(mp);
mimeMsg.saveChanges();
System.out.println("正在发送邮件....");
Session mailSession = Session.getInstance(props, null);
Transport transport = mailSession.getTransport("smtp");
transport.connect((String)props.get("mail.smtp.host"), UserName, PassWord);
transport.sendMessage(mimeMsg,mimeMsg.getRecipients(Message.RecipientType.TO));
//transport.send(mimeMsg);
System.out.println("发送邮件成功！");
transport.close();
return true;
}catch(Exception e){
System.err.println("邮件发送失败！" + e);
return false;
}
}
/**
*   Just   do   it   as   this
*/
public static void main(String[] args){
String mailbody = "<meta http-equiv=Content-Type content=text/html;charset=utf-8>" +
"<div align=center>邮件正文内容</div>"+
"<a href="http://www.baidu.com/" mce_href="http://www.baidu.com/">百度</a>";
SendAttachment themail = new SendAttachment("smtp.163.com");
themail.setNeedAuth(true);
if(themail.setSubject("邮件主题") == false) return;
if(themail.setBody(mailbody) == false) return;
if(themail.setTo("12345678@qq.com") == false) return;
//以上是收件人处理
if(themail.setFrom("12345678@163.com") == false) return;
//发送附件
//if(themail.addFileAffix("d://工作日志20100524.xls") == false) return;
themail.setNamePass("12345678", "***********");
if(themail.sendout() == false) return;
}
}

注：jar文件和工程在我上传资源里边，免积分下载！