JavaMail技术 用java代码发送邮件
1.MysendMail.java
package com.model;
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");
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;
}
}
}
2.SendMailToSomeone.java
package com.model;
public class SendMailToSomeone {
public static void main(String []args){
SendMailToSomeone sts=new SendMailToSomeone();
sts.send("邮件测试",
"<meta http-equiv=content-Type content=text/html;charset=gb2312><div align=center><h1 style=\"color: red\">这是邮箱测试 （-.-）</h1></div>",
"[email protected]",
"[email protected]",
"123",
"smtp.sohu.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 [email protected]
* @param from 从哪些发送 [email protected]
* @param passwd 密码 123456
* @param sendStmp 发送邮件的smtp smtp.sohu.com [smtp.163.com] [smtp.sina.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("c:\\1.rar") == false) return;
// if()
//将在sohu网站上的邮件用户名和 密码 放入邮件体
themail.setNamePass("[email protected]","123");//要和上面的邮箱名和密码一致
//发送
if(themail.sendout() == false) return;
}
}
注意事项：
1.要有自己的邮箱，知道名字和密码
2.要知道别人的邮箱地址
3.保证邮箱地址和密码正确的情况下，就可以运行SendMailToSomeone.java，给别人发邮件了。
不过这种邮件一般会被收到垃圾箱中。