package com.zh.javaEmail; import java.util.*;
import javax.mail.*; import javax.mail.internet.*; import javax.activation.*; public class MysendMail { 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 boolean needAuth = false; // smtp是否需要认证 private String username = ""; // smtp认证用户名和密码
private String password = ""; 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 MysendMail() {
// setSmtpHost(getConfig.mailHost);//如果没有指定邮件服务器,就从getConfig类中获取
createMimeMessage();
} public MysendMail(String smtp) {
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)
props = System.getProperties(); // 获得系统属性对象 props.put("mail.smtp.host", hostName); // 设置SMTP主机 } /**
* @return boolean
*/
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
} 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;
}
} /**
* @param need
* boolean
*/
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");
}
} /**
* @param name
* String
* @param pass
* String
*/
public void setNamePass(String name, String pass) {
username = name;
password = pass;
} /**
* @param mailSubject
* String
* @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;
}
} /**
* @param mailBody
* String
*/
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;
}
} /**
* @param name
* String
* @param pass
* String
*/
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;
}
} /**
* @param name
* String
* @param pass
* String
*/
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;
}
} /**
* @param name
* String
* @param pass
* String
*/
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;
} } /**
* @param name
* String
* @param pass
* String
*/
public boolean setCopyTo(String copyto) {
if (copyto == null)
return false;
try {
mimeMsg.setRecipients(Message.RecipientType.CC,
(Address[]) InternetAddress.parse(copyto));
return true;
} catch (Exception e) {
return false;
}
} /**
* @param name
* String
* @param pass
* String
*/
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"); //传送数据的类
transport.connect((String) props.get("mail.smtp.host"), username,
password);
transport.sendMessage(mimeMsg, mimeMsg
.getRecipients(Message.RecipientType.TO)); 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;
} } } /*这个是封装的类*/ package com.zh.javaEmail; public class SendMailToSomeone { public static void main(String []args){ SendMailToSomeone sts=new SendMailToSomeone();
sts.send("aa", "hello", "xxxxx@qq.com",
"xxxxx@163.com", "xxxx", "smtp.163.com");
} /**
* 发送电子邮件到指定的信箱
* @param title 邮件标题
* @param mailbody 邮件内容【一个网页，表格ok】
* @param sendTo 发送给谁 xxxx@tsinghua.org.cn
* @param from 从哪些发送 admin@sohu.com
* @param passwd 密码 123456
* @param sendStmp 发送邮件的smtp smtp.sohu.com [smtp.163.com] [smtp.sina.com] [smtp.qq.com]
*/
public void send(String title,String mailbody,String sendTo,String from,String passwd,String sendStmp){ //指明让那个smtp转发(搜狐)
MysendMail themail = new MysendMail(sendStmp);
//校验身份
themail.setNeedAuth(true);
//邮件标题
if(themail.setSubject(title) == false) return;
//将要发送的 内容放入邮件体
if(themail.setBody(mailbody) == false) return; //发送到哪里
if(themail.setTo(sendTo) == false) return; //谁发送的
if(themail.setFrom(from) == false) return; //if(themail.addFileAffix("e:\\butterfly.gif") == false) return; //将在sohu网站上的邮件用户名和 密码 放入邮件体
themail.setNamePass(from,passwd);
//发送
if(themail.sendout() == false) return;
}
} 需要注意的几点： 1. java.lang.NoClassDefFoundError: com/sun/mail/util/BEncoderStream 这个问题是Mail.jar包没有引入到java路径中，或者是版本的问题， 重新下载一个MailXXXXX.zip 然后引包 2.Exception in thread "main" java.lang.NoClassDefFoundError: com/sun/mail/util/LineInputStreams 原因是jar包版本不统一,解决方法如下: 删除Java EE 5 Libraries/javaee.jar/mail里的包有东西. 具体方法如下: 在Myeclipse6.0.1中用rar打开X:/Program Files/MyEclipse 6.0/myeclipse/eclipse/plugins/com.genuitec.eclipse.j2eedt.core_6.0.1.zmyeclipse601200710/data/libraryset/EE_5/javaee.jar 在Myeclipse8.5中 D:/Program Files/MyEclipse 8.5/Common/plugins/com.genuitec.eclipse.j2eedt.core_8.5.0.me201003231033/data/libraryset/EE_5/EE_5/javaee.jar ,然后删除mail,一切就ok了. 若删除的时候出错，则需要先在myeclipse里面删除掉引用了J2ee5.0的工程，然后再关闭myeclipse再进行删除操作。
注意当删除javaee.jar中的文件时，要删除mail和activation两个,然后再添加mail.jar和activation.jar两个包就可以了