邮件发送程序

import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.BodyPart;
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 MessageSender {
/**
* 整个MIME邮件对象
*/
private MimeMessage mimeMsg;
/**
* 专门用来发送邮件的Session会话
*/
private Session session;
/**
* 封装邮件发送时的一些配置信息的一个属性对象
*/
private Properties props;
/**
* 发件人的用户名
*/
private String username;
/**
* 发件人的密码
*/
private String password;
/**
* 用来实现附件添加的组件
*/
private Multipart mp;

/**
* 发送参数初始化,有的服务器不需要用户验证，所以这里对用户名和密码进行初始化""
*
* @param smtp
*            SMTP服务器的地址，比如要用QQ邮箱，哪么应为："smtp.qq.com"，163为："smtp.163.com"
*/
public MessageSender(String smtp) {
username = "";
password = "";
// 设置邮件服务器
setSmtpHost(smtp);
// 创建邮件
createMimeMessage();
}

/**
* 设置发送邮件的主机(JavaMail需要Properties来创建一个session对象。
* 它将寻找字符串"mail.smtp.host"，属性值就是发送邮件的主机);
*
* @param hostName
*/
public void setSmtpHost(String hostName) {
System.out.println("设置系统属性：mail.smtp.host = " + hostName);
if (props == null)
props = System.getProperties();
props.put("mail.smtp.host", hostName);
}

/**
* (这个Session类代表JavaMail 中的一个邮件session. 每一个基于
* JavaMail的应用程序至少有一个session但是可以有任意多的session。 在这个例子中,
* Session对象需要知道用来处理邮件的SMTP 服务器。
*/
public boolean createMimeMessage() {
try {
System.out.println("准备获取邮件会话对象！");
// 用props对象来创建并初始化session对象
session = Session.getDefaultInstance(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 {
// 用session对象来创建并初始化邮件对象
mimeMsg = new MimeMessage(session);
// 生成附件组件的实例
mp = new MimeMultipart();
} catch (Exception e) {
System.err.println("创建MIME邮件对象失败！" + e);
return false;
}
return true;
}

/**
* 设置SMTP的身份认证
*/
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");
}

/**
* 进行用户身份验证时，设置用户名和密码
*/
public void setNamePass(String name, String pass) {
System.out.println("程序得到用户名与密码");
username = name;
password = pass;
}

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

/**
* 设置邮件内容,并设置其为文本格式或HTML文件格式，编码方式为UTF-8
*
* @param mailBody
* @return
*/
public boolean setBody(String mailBody) {
try {
System.out.println("设置邮件体格式");
BodyPart bp = new MimeBodyPart();
bp.setContent(
"<meta http-equiv=Content-Type content=text/html; charset=UTF-8>"
+ mailBody, "text/html;charset=UTF-8");
// 在组件上添加邮件文本
mp.addBodyPart(bp);
} catch (Exception e) {
System.err.println("设置邮件正文时发生错误！" + e);
return false;
}
return true;
}

/**
* 增加发送附件
*
* @param filename
*            邮件附件的地址，只能是本机地址而不能是网络地址，否则抛出异常
* @return
*/
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));
// 发送的附件前加上一个用户名的前缀
bp.setFileName(fileds.getName());
// 添加附件
mp.addBodyPart(bp);
} catch (Exception e) {
System.err.println("增加邮件附件：" + filename + "发生错误！" + e);
return false;
}
return true;
}

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

/**
* 设置收件人地址
*
* @param to
*            收件人的地址
* @return
*/
public boolean setTo(String to) {
System.out.println("设置收信人");
if (to == null)
return false;
try {
mimeMsg.setRecipients(javax.mail.Message.RecipientType.TO,
InternetAddress.parse(to));
} catch (Exception e) {
return false;
}
return true;
}

/**
* 发送附件
*
* @param copyto
* @return
*/
public boolean setCopyTo(String copyto) {
System.out.println("发送附件到");
if (copyto == null)
return false;
try {
mimeMsg.setRecipients(javax.mail.Message.RecipientType.CC,
InternetAddress.parse(copyto));
} catch (Exception e) {
return false;
}
return true;
}

/**
* 发送邮件
*
* @return
*/
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");
// 真正的连接邮件服务器并进行身份验证
transport.connect((String) props.get("mail.smtp.host"), username,
password);
// 发送邮件
transport.sendMessage(mimeMsg, mimeMsg
.getRecipients(javax.mail.Message.RecipientType.TO));
System.out.println("发送邮件成功！");
transport.close();
} catch (Exception e) {
System.err.println("邮件发送失败！" + e.getMessage());
e.printStackTrace();
return false;
}
return true;
}

public static void main(String[] args) {
MessageSender themail = new MessageSender("smtp.163.com");
String mailbody = "手机停机了，写个程序发邮件，收到的话帮我下个java jdk6，你就在浏览器里面" +
"输入http://www.oracle.com/technetwork/java/javase/downloads/jdk-6u30-download-1377139.html，然后在下载列表里找jdk-6u30-windows-i586.exe，然后下载，thank you！！";
themail.setNeedAuth(true);
themail.setSubject("你好");
themail.setBody(mailbody);
themail.setTo("393769603@qq.com");
themail.setFrom("tianbao004@163.com");
//themail.addFileAffix("C:/CEPxDD0D.tmp");// 附件文件路径,例如：C:/222.jpg,*注；"/"的写法；
themail.setNamePass("tianbao004@163.com","841104");
themail.sendout();
}
}
第二个SendMailBean.java

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

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

public class SendMailBean {
private String form;
private String to;
private String hostName;
private String port;
private String userName;
private String password;
private String subject;
private String body;
public String getForm() {
return form;
}
public void setForm(String form) {
this.form = form;
}
public String getTo() {
return to;
}
public void setTo(String to) {
this.to = to;
}
public String getHostName() {
return hostName;
}
public void setHostName(String hostName) {
this.hostName = hostName;
}
public String getPort() {
return port;
}
public void setPort(String port) {
this.port = port;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getSubject() {
return subject;
}
public void setSubject(String subject) {
this.subject = subject;
}
public String getBody() {
return body;
}
public void setBody(String body) {
this.body = body;
}
public boolean sendMail(){
Properties props=new Properties();
//  props.put("mail.smtp.protocol","smtp");
props.put("mail.smtp.host",hostName);
props.put("mail.smtp.auth","true");
props.put("mail.smpt.port",port);
Session mailsession=Session.getInstance(props,null); //得到一个发送邮件的会话

Message msg=new MimeMessage(mailsession);
try{
msg.setFrom(new InternetAddress(this.getForm()));
msg.setRecipients(Message.RecipientType.TO,InternetAddress.parse(this.getTo()));
msg.setSubject(this.getSubject());
msg.setSentDate(new Date());
msg.setText(this.getBody());
Transport transport = mailsession.getTransport("smtp");
transport.connect(this.getHostName(),this.getUserName(),this.getPassword());
transport.sendMessage(msg,msg.getRecipients(Message.RecipientType.TO));
// System.out.println("邮件以成功发送到dushengjun@gmail.com");
transport.close();
return true;
}catch(Exception e)
{
System.out.println("产生异常:"+e);
return false;
}
}
public static void main(String[] args) {
System.out.println("正在准备发送.....");
SendMailBean smb=new SendMailBean();
smb.setUserName("tianbao004@163.com");
smb.setForm("dushengjun@kingsoft.net");
smb.setHostName("smtp.163.com");
smb.setPassword("841104");
smb.setPort("25");
smb.setTo("284439843@qq.com");
smb.setSubject("你好");
smb.setBody("你好 Java");
if(smb.sendMail())
System.out.println("发送成功");
else
System.out.println("发送失败");
}

}