JavaMail邮件发送和接收代码

import java.io.IOException;
import java.text.DateFormat;
import java.util.Date;
import java.util.Properties;
import javax.mail.Authenticator;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.NoSuchProviderException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class TestJMail {
// String host = "192.168.1.127"; // 指定的smtp服务器，本机的局域网IP
String host = "localhost"; // 本机smtp服务器
// String host = "smtp.163.com"; // 163的smtp服务器
String from = "chufei@zhaowei.com"; // 邮件发送人的邮件地址
String to = "cuifengqi@zhaowei.com"; // 邮件接收人的邮件地址
final String username = "cuifengqi"; // 发件人的邮件帐户
final String password = "cuifengqi"; // 发件人的邮件密码

// 发送邮件
public void sendMail() {

// 创建Properties 对象
Properties props = System.getProperties();

// 添加smtp服务器属性
props.put("mail.smtp.host", host);
props.put("mail.smtp.auth", "true");

// 创建邮件会话
Session session = Session.getDefaultInstance(props,
new Authenticator() {
@Override
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}

});

try {
// 连接SMTP服务器
Transport sender = session.getTransport("smtp");
sender.connect();
// 定义邮件信息
MimeMessage message = new MimeMessage(session);
// 设置收件人和发件人,及相关信息
message.setFrom(new InternetAddress(from));
message.addRecipient(Message.RecipientType.TO, new InternetAddress(
to));
// message.setSubject(transferChinese("我有自己的邮件服务器了"));
message.setSubject("I have myself mailserver");
message.setText("我有自己的邮件服务器了!");
// message.setContent("我有自己的邮件服务器了!","text/html;charset=gb2312");

// 发送消息
sender.send(message);
// Transport.send(message); //也可以这样创建Transport对象发送
System.out.println("发送信息完毕!");
} catch (AddressException e) {
e.printStackTrace();
} catch (NoSuchProviderException e) {
e.printStackTrace();
} catch (MessagingException e) {
e.printStackTrace();
}
}

// 接收邮件
public void getMail() {

// 创建Properties 对象
Properties props = System.getProperties();

// 添加smtp服务器属性
props.put("mail.smtp.host", host);
props.put("mail.smtp.auth", "true");

// 创建邮件会话
Session session = Session.getDefaultInstance(props,
new Authenticator() {
@Override
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}

});

try {
// 获取邮箱的pop3存储
Store store = session.getStore("pop3");
store.connect(host, username, password);
// 获取inbox文件
Folder folder = store.getFolder("INBOX");
folder.open(Folder.READ_ONLY); // 打开，打开后才能读取邮件信息
// 获取邮件消息
Message[] message = folder.getMessages();
for (int i = 0; i < folder.getMessageCount(); i++) {
System.out.println("邮件主题：" + message[i].getSubject());
System.out.println("邮件内容:" + message[i].getContent());
System.out.println("邮件类型：" + message[i].getContentType());
}
System.out.println(folder.getMessageCount());
// 关闭资源
folder.close(false);
store.close();
} catch (NoSuchProviderException e) {
e.printStackTrace();
} catch (MessagingException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("接收邮件完毕!");
}
}