JavaWeb--发送邮件实现注册
发送邮件
加载包
pom.xml
<!-- https://mvnrepository.com/artifact/javax.mail/mail -->
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4.7</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.activation/activation -->
<dependency>
<groupId>javax.activation</groupId>
<artifactId>activation</artifactId>
<version>1.1.1</version>
</dependency>
注册页面index.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>注册</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/RegisterServlet.do" method="post">
<div class="txt txt0">
<span style="letter-spacing:8px;">用户名:</span>
<input name="username" type="text" class="txtphone" placeholder="请输入用户名"/>
</div>
<div class="txt txt0">
<span style="letter-spacing:4px;">登录密码:</span>
<input name="password" type="text" class="txtphone" placeholder="请输入密码"/>
</div>
<div class="txt txt0">
<span style="letter-spacing:4px;">邮箱:</span>
<input name="email" type="text" class="txtphone" placeholder="请输入邮箱"/>
</div>
<div class="txt txt0">
<input type="submit" value="注册"/>
</div>
</form>
</body>
</html>
注册成功跳转页面：info.jsp
<%--
Created by IntelliJ IDEA.
User: ASUS
Date: 2020/8/29
Time: 22:30
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
${message}
</body>
</html>
用户实体类User.java
package edu.cqupt.pojo;
import java.io.Serializable;
public class User implements Serializable {
private String username;
private String password;
private String email;
public User() {
}
public User(String username, String password, String email) {
this.username = username;
this.password = password;
this.email = email;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
@Override
public String toString() {
return "User{" +
"username='" + username + '\'' +
", password='" + password + '\'' +
", email='" + email + '\'' +
'}';
}
}
RegisterServlet.java
package edu.cqupt.servlet;
import edu.cqupt.pojo.User;
import edu.cqupt.utils.SendEmail;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
public class RegisterServlet extends HttpServlet {
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String username = req.getParameter("username");
String password = req.getParameter("password");
String email = req.getParameter("email");
System.out.println(username);
System.out.println(password);
System.out.println(email);
User user = new User(username, password, email);
SendEmail send = new SendEmail(user);
send.start(); // 使用线程，加快邮件发送
req.setAttribute("message","注册成功，请查收邮件");
req.getRequestDispatcher("info.jsp").forward(req,resp);
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
super.doPost(req, resp);
}
}
SendEmail.java
package edu.cqupt.utils;
import com.sun.mail.util.MailSSLSocketFactory;
import edu.cqupt.pojo.User;
import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.util.Properties;
public class SendEmail extends Thread{
private String from = "发送方@qq.com";
private String username = "发送方@qq.com";
private String password = "邮箱授权码";
private String host = "smtp.qq.com";
private User user;
public SendEmail(User user) {
this.user = user;
}
@Override
public void run() {
try {
Properties prop = new Properties();
prop.setProperty("mail.host", "smtp.qq.com");
prop.setProperty("mail.transport.protocol", "smtp");
prop.setProperty("mail.smtp.auth", "true");
//QQ邮箱，设置SSL加密
MailSSLSocketFactory sf = new MailSSLSocketFactory();
sf.setTrustAllHosts(true);
prop.put("mail.smtp.ssl.enable", "true");
prop.put("mail.smtp.socketFactory", sf);
// 使用JavaMail发送邮件的5个步骤
// 1、创建session
Session session = Session.getInstance(prop, new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
// 2. 开启Session的debug模式:true
session.setDebug(false);
// 3.通过session得到transport对象
Transport ts = session.getTransport();
ts.connect(host, username, password);
// 4. 创建邮件
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress(from));
message.setRecipient(Message.RecipientType.TO, new InternetAddress(user.getEmail()));
message.setSubject("注册邮件");
String info = "Yours username:" + user.getUsername() + "password:" + user.getPassword();
message.setContent(info, "text/html;chartset=UTF-8");
// 5.发送邮件
ts.sendMessage(message, message.getAllRecipients());
// 6.关闭连接
ts.close();
}catch (Exception e){
throw new RuntimeException(e);
}
}
}
注册效果
