Java example code for sending emails (portable)

Taking a web project as an example, the code can be transplanted

First, import the mail.jar package, and then create your own class

1:HTMLSender class

Copy the code code as follows:

package com.txq.mail;

import java.util.Properties;

import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.NoSuchProviderException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeUtility;

/**
*
* @author Administrator
*
*/
public class HTMLSender {
private MimeMessage message;
private Properties props;
private Session session;
private String name = "";
private String password = "";

public HTMLSender(String host,String name,String password)
{
this.name = name;
this.password = password;
props = System.getProperties();

props.put("mail.smtp.host", host);
props.put("mail.smtp.auth","true");
MyAuthenticator auth = new MyAuthenticator(name,password);
session = Session.getDefaultInstance(props,auth);

message = new MimeMessage(session);
new MimeMultipart();
}

public void setFrom(String from)
{
try
{
message.setFrom(new InternetAddress(from));
}
catch (AddressException e)
{
e.printStackTrace();
}
catch (MessagingException e)
{
e.printStackTrace();
}
}

public void setTo(String to)
{
try
{
message.setRecipients(Message.RecipientType.TO,InternetAddress.parse(to));
}
catch(AddressException e)
{
e.printStackTrace();
}
catch(MessagingException e)
{
e.printStackTrace();
}
}

public void setSubject(String subject)
{
try
{
message.setSubject(subject);
}
catch(Exception e)
{
e.printStackTrace();
}
}

public void setContect(String content)
{
try
{
message.setContent(content,"text/html;charset=utf-8");
}
catch(Exception e)
{
e.printStackTrace();
}
}

public boolean send()
{
try
{
Transport transport = session.getTransport("smtp");
transport.connect((String)props.get("mail.smtp.host"),name,password);
transport.sendMessage(message, message.getRecipients(Message.RecipientType.TO));
transport.close();
return true;
}
catch(NoSuchProviderException e)
{
e.printStackTrace();
return false;
}
catch(MessagingException e)
{
e.printStackTrace();
return false;
}
}
}

2: MyAuthenticator class

Copy the code code as follows:

package com.txq.mail;

import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;

public class MyAuthenticator extends Authenticator{
String name;
String password;
public MyAuthenticator(String name,String password)
{
this.name = name;
this.password = pasword;
getPasswordAuthentication();
}
protected PasswordAuthentication getPasswordAuthentication()
{
return new PasswordAuthentication(name,password);
}
}

3: MailAction class

Copy the code code as follows:

package com.txq.action;

import java.io.PrintWriter;

import com.opensymphony.xwork2.ActionSupport;
import com.txq.mail.HTMLSender;

public class MailAction extends ActionSupport {
private String email;
public String sendEmail(){
//Agent host-Sina
String host = "smtp.sina.cn";
//Account-Sina account
String name = "followmusic";
//Password-Sina password
String password = "followmusic";
//Create an email object
HTMLSender mail = new HTMLSender(host,name,password);
//Sending account
mail.setFrom("[email protected]");
//mail account
mail.setTo("[email protected]");
//Email subject
mail.setSubject("Tao Interest");
//Email content
mail.setContect("Your friend invites you to come and search for interests~");

if(mail.send())
{
return SUCCESS;
}
else
{
return "error";
}
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}