java邮件发送

package com.udbac.util;

import java.util.Properties;
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 Mail {
private MimeMessage mimeMsg;
private Session session;
private Properties props;
private String username;
private String password;
private Multipart mp;
public Mail(String smtp) {
setSmtpHost(smtp);
createMimeMessage();
}
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);
}
public boolean createMimeMessage() {
try {
System.out.println("准备获取邮件会话对象！");
session = Session.getDefaultInstance(props, null);
} catch (Exception e) {
System.out.println("获取邮件会话错误！" + e);
return false;
}
System.out.println("准备创建MIME邮件对象！");
try {
mimeMsg = new MimeMessage(session);
mp = new MimeMultipart();

return true;
} catch (Exception e) {
System.out.println("创建MIME邮件对象失败！" + e);
return false;
}
}

/*定义SMTP是否需要验证*/
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");
//props.put("mail.smtp.port","465");
} else {
props.put("mail.smtp.auth", "false");
}
}
public void setNamePass(String name, String pass) {
username = name;
password = pass;
}

/*定义邮件主题*/

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

/*定义邮件正文*/

public boolean setBody(String mailBody) {
try {
BodyPart bp = new MimeBodyPart();
bp.setContent("" + mailBody, "text/html;charset=GBK");
mp.addBodyPart(bp);
return true;
} catch (Exception e) {
System.err.println("定义邮件正文时发生错误！" + e);
return false;
}
}

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

/*定义收信人*/
public boolean setTo(String to) {
if (to == null)
return false;
System.out.println("定义收信人！");
try {
mimeMsg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to));
return true;
} catch (Exception e) {
return false;
}
}

/*定义抄送人*/
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;
}
}

/*发送邮件模块*/
public boolean sendOut() {
try {
mimeMsg.setContent(mp);
mimeMsg.saveChanges();
System.out.println("邮件发送中....");
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("发送成功！");
transport.close();
return true;
} catch (Exception e) {
System.err.println("邮件失败！" + e);
return false;
}
}

/*调用sendOut方法完成发送*/
public static boolean sendAndCc(String smtp, String from, String to, String copyto,
String subject, String content, String username, String password) {
Mail theMail = new Mail(smtp);
theMail.setNeedAuth(true); // 验证
if (!theMail.setSubject(subject))
return false;
if (!theMail.setBody(content))
return false;
if (!theMail.setTo(to))
return false;
if (!theMail.setCopyTo(copyto))
return false;
if (!theMail.setFrom(from))
return false;
theMail.setNamePass(username, password);
if (!theMail.sendOut())
return false;
return true;
}

//运行
public static void main(String[] args) {
String smtp = "smtp.126.com";// smtp服务器
String from = "zhangtongzct@126.com";// 邮件显示名称
String to = "864838633@qq.com";// 收件人的邮件地址，必须是真实地址
String copyto = "";// 抄送人邮件地址
String subject = "测试邮件555";// 邮件标题
String content = "你好！";// 邮件内容
String username = "zhangtongzct@126.com";// 发件人真实的账户名
String password = "*****";// 发件人密码
Mail.sendAndCc(smtp, from, to, copyto, subject, content, username, password);
}
}