java实现邮件的发送及接收
package com.self.uitls;
import java.util.Date;
import java.util.Properties;
import javax.mail.Authenticator;
import javax.mail.Flags;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.search.FlagTerm;
import org.junit.Test;
import com.sun.mail.util.MailSSLSocketFactory;
/**
* 发送邮件
* setRecipient(Message.RecipientType type , Address theAddress)、setRecipients(Message.RecipientType type , Address[] theAddress)、addRecipient(Message.RecipientType type , Address theAddress)、addRecipients(Message.RecipientType type,Address[] theAddress)方法都可以指定接受者类型，但是一般用后两个，这样可以避免意外的替换或者覆盖接受者名单。定义接受者类型：
*Message.RecipientType.TO：消息接受者
*Message.RecipientType.CC：消息抄送者
*Message.RecipientType.BCC：匿名抄送接收者(其他接受者看不到这个接受者的姓名和地址)
* @author rhy
* @date 2018-7-23 下午3:11:05
* @version V1.0
*/
public class MailUtil {
/**
* 163邮箱
*
* @param args
*/
public static void main(String[] args) {
try {
// 创建一个程序与邮件服务器会话对象session
Properties props = new Properties();
props.setProperty("mail.transport.protocol", "SMTP");
props.setProperty("mail.smtp.host", "smtp.163.com");
props.setProperty("mail.smtp.port", "25");
// 指定验证为true
props.setProperty("mail.smtp.auth", "true");
props.setProperty("mail.smtp.timeout", "4000");
// 验证账号及密码，密码需要是第三方授权码
Authenticator auth = new Authenticator() {
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("[email protected]", "xxxxx");
}
};
Session session = Session.getInstance(props, auth);
// session.setDebug(true);//设置debug模式，可以查看详细的发送
// 创建一个message,它相当于是邮件内容
Message message = new MimeMessage(session);
// 设置发送者
message.setFrom(new InternetAddress("[email protected]"));
message.setRecipient(MimeMessage.RecipientType.TO,
new InternetAddress("[email protected]"));
// 设置主题
message.setSubject("晚上开会");
// 设置内容
message.setContent("晚点有事一起来开会", "text/html;charset=utf-8");
// 设置发信时间
message.setSentDate(new Date());
// 创建 Transport用于将邮件发送
Transport.send(message);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* qq邮箱
*/
@Test
public void sendMail() {
try {
// 创建一个程序与邮件服务器会话对象session
Properties props = new Properties();
props.setProperty("mail.transport.protocol", "SMTP");
props.setProperty("mail.smtp.host", "smtp.qq.com");
props.setProperty("mail.smtp.port", "25");
// 指定验证为true
props.setProperty("mail.smtp.auth", "true");
props.setProperty("mail.smtp.timeout", "4000");
// 验证账号及密码，密码需要是第三方授权码
Authenticator auth = new Authenticator() {
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("[email protected]", "xxxxx");
}
};
Session session = Session.getInstance(props, auth);
// 创建一个message,它相当于是邮件内容
Message message = new MimeMessage(session);
// 设置发送者
message.setFrom(new InternetAddress("[email protected]"));
message.setRecipient(MimeMessage.RecipientType.TO,
new InternetAddress("[email protected]"));
// 设置主题
message.setSubject("晚上开会");
// 设置内容
message.setContent("晚点有事一起来开会lai", "text/html;charset=utf-8");
// 设置发信时间
message.setSentDate(new Date());
// 创建 Transport用于将邮件发送
Transport.send(message);
} catch (Exception e) {
e.printStackTrace();
}
}
// jmiifibifvpfbaii
/**
*
* 腾讯企业邮箱
*/
@Test
public void sendMailqq() {
try {
// 创建一个程序与邮件服务器会话对象session
Properties props = new Properties();
// 协议
props.setProperty("mail.transport.protocol", "SMTP");
// 服务器
props.setProperty("mail.smtp.host", "smtp.exmail.qq.com");
// 端口
props.setProperty("mail.smtp.port", "465");
// 使用smtp身份验证
props.setProperty("mail.smtp.auth", "true");
// 使用ssl，企业邮箱必需
// 开启安全协议
MailSSLSocketFactory sf = null;
try {
sf = new MailSSLSocketFactory();
sf.setTrustAllHosts(true);
} catch (Exception e) {
e.printStackTrace();
}
props.put("mail.smtp.ssl.enable", "true");
props.put("mail.smtp.ssl.socketFactory", sf);
Session session = Session.getDefaultInstance(props,
new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
PasswordAuthentication pa = new PasswordAuthentication(
"[email protected]", "xxxx");
return pa;
}
});
// 设置session的调试模式
session.setDebug(true);
MimeMessage mimeMessage = new MimeMessage(session);
mimeMessage.setFrom(new InternetAddress("[email protected]"));
mimeMessage.addRecipient(Message.RecipientType.TO,
new InternetAddress("[email protected]"));// // 邮件的收件人
// mimeMessage.setRecipient(Message.RecipientType.CC, new InternetAddress(MAIL_CC)); // 邮件的抄送人
// mimeMessage.setRecipient(Message.RecipientType.BCC, new InternetAddress(MAIL_BCC)); // 邮件的密送人
// 设置主题
mimeMessage.setSubject("下雨请注意");
mimeMessage.setSentDate(new Date());
// 设置内容
mimeMessage.setText("请关好窗户");
mimeMessage.saveChanges();
// 发送
Transport.send(mimeMessage);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 读取腾讯企业邮箱的邮件
*/
@Test
public void getMessage() {
try{
//创建一个有具体连接信息的Properties对象
Properties prop = new Properties();
prop.setProperty("mail.debug", "true");
prop.setProperty("mail.store.protocol", "pop3");
prop.setProperty("mail.pop3.host", "smtp.exmail.qq.com");
Session session = Session.getInstance(prop);
Store store = session.getStore();
store.connect("[email protected]", "xxxx");
Folder folder = store.getFolder("inbox");
folder.open(Folder.READ_ONLY);
Message[] messages = folder.getMessages();
for(int i=0;i
String subject = messages[i].getSubject();
String from = (messages[i].getFrom()[0]).toString();
String content = messages[i].getContent().toString();
System.out.println("第 "+ (i+1) + " 封邮件的发件人地址---->>>"+from);
System.out.println("第 "+ (i+1) + " 封邮件的主题--->>>"+subject);
System.out.println("第 "+ (i+1) + " 封邮件的内容---->>>"+content);
System.out.println("-----------------------------------------");
}
}catch(Exception e){
e.printStackTrace();
}
}
/**
* qq邮箱接收邮件
*/
@Test
public void getMessageQQ() {
try{
//创建一个有具体连接信息的Properties对象
Properties props = new Properties();
props.setProperty("mail.imap.socketFactory.class", "javax.net.ssl.SSLSocketFactory");//ssl加密,jdk1.8无法使用
props.setProperty("mail.imap.socketFactory.fallback", "false");
props.setProperty("mail.transport.protocol", "imap"); // 使用的协议
props.setProperty("mail.imap.port", "993");
props.setProperty("mail.imap.socketFactory.port", "993");
Session session = Session.getDefaultInstance(props);
// session.setDebug(true);
Store store = session.getStore("imap");
store.connect("imap.qq.com","[email protected]", "xxxx");//登录认证
Folder folder = store.getFolder("inbox");//获取用户的邮件账户
folder.open(Folder.READ_WRITE);//设置对邮件账户的访问权限
FlagTerm ft = new FlagTerm(new Flags(Flags.Flag.SEEN),false);//false代表未读，true代表已读
// Message[] messages = folder.getMessages();
Message[] messages = folder.search(ft);
for(int i=0;i
String subject = messages[i].getSubject();
String from = (messages[i].getFrom()[0]).toString();
String content = messages[i].getContent().toString();
System.out.println("第 "+ (i+1) + " 封邮件的发件人地址---->>>"+from);
System.out.println("第 "+ (i+1) + " 封邮件的主题--->>>"+subject);
System.out.println("第 "+ (i+1) + " 封邮件的内容---->>>"+content);
System.out.println("-----------------------------------------");
messages[i].setFlag(Flags.Flag.SEEN, false);//imap读取后邮件状态变为已读
}
folder.close(false);
store.close();
}catch(Exception e){
e.printStackTrace();
}
}
}
//rmvuvaygryevbbcd