需要导入的jar包:mail.jar
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.util.Properties;
import com.sun.mail.util.MailSSLSocketFactory;
// 收件人电子邮箱
String to = "27****[email protected]";
// 发件人电子邮箱
final String from = "131*****[email protected]";
// 指定发送邮件的主机为 smtp.qq.com
final String host = "smtp.163.com"; //邮件服务器 QQ邮箱为 smtp.qq.com
final String password = "**********";
// 获取系统属性
Properties properties = System.getProperties();
// 设置邮件服务器
properties.setProperty("mail.smtp.host", host);
properties.put("mail.smtp.auth", "true");
MailSSLSocketFactory sf = null;
try {
sf = new MailSSLSocketFactory();
} catch (GeneralSecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
sf.setTrustAllHosts(true);
properties.put("mail.smtp.ssl.enable", "true");
properties.put("mail.smtp.ssl.socketFactory", sf);
// 获取默认session对象
Session session = Session.getDefaultInstance(properties,new Authenticator(){
public PasswordAuthentication getPasswordAuthentication()
{
return new PasswordAuthentication(from, password); //发件人邮件用户名、密码
}
});
try{
// 创建默认的 MimeMessage 对象
MimeMessage message = new MimeMessage(session);
// Set From: 头部头字段
message.setFrom(new InternetAddress(from));
// Set To: 头部头字段
message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
// Set Subject: 头部头字段
message.setSubject("标题");
// 设置消息体
message.setText("邮件内容");
// 发送消息
Transport.send(message);
System.out.println("邮件发送成功!");
}catch (MessagingException mex) {
mex.printStackTrace();
}
}
注意,第三方发送邮件时,要打开邮箱的授权