第78天学习打卡（JavaWeb 网站注册发送邮件实现）
网站注册发送邮件实现
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">
用户名：<input type="text" name="username"><br/>
密码：<input type="password" name="password"><br/>
邮箱：<input type="text" name="email"><br/>
<input type="submit" value="注册">
</form>
</body>
</html>
RegisterServlet：
package com.kuang.servlet;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
//脚手架
public class RegisterServlet extends HttpServlet {
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String username=request.getParameter("username");
String password=request.getParameter("password");
String email=request.getParameter("email");
System.out.println(username);
System.out.println(password);
System.out.println(email);
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
}
User:
package com.kuang.pojo;
import java.io.Serializable;
public class User implements Serializable {
public User() {
}
public User(String username, String password, String email) {
this.username = username;
this.password = password;
this.email = email;
}
private String username;
private String password;
private String 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:
package com.kuang.servlet;
import com.kuang.pojo.User;
import com.kuang.util.Sendmail;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
//脚手架
public class RegisterServlet extends HttpServlet {
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String username=request.getParameter("username");
String password=request.getParameter("password");
String email=request.getParameter("email");
User user = new User(username, password, email);
//用户注册成功之后，给用户发送一封邮件
//我们使用线程来专门发送邮件，防止出现耗时，和网站注册人数过多的情况
Sendmail send = new Sendmail(user);
//启动线程，线程启动之后就会执行run方法来发送邮件
send.start();
// send.run();//这个就不是多线程 它会等到程序结束才弹出相应结果
//注册用户
request.setAttribute("message","注册成功，我们已经发了一封带注册信息的电子邮件，请查收！由于网络原因，您收到邮件的时间存在延迟，敬请谅解~");
request.getRequestDispatcher("info.jsp").forward(request,response);
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
}
Sendmail:
package com.kuang.util;
import com.kuang.pojo.User;
import com.sun.mail.util.MailSSLSocketFactory;
import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.util.Properties;
//网站3秒原则：用户体验
//多线程实现用户体验（异步处理）
public class Sendmail extends Thread{
//用于给用户发送邮件的邮箱
private String from="xxxx@qq.com";
//邮箱的用户名
private String username = "xxxx@qq.com";
//邮箱的密码
private String password = "授权码";
private String host="smtp.qq.com";
private User user;
public Sendmail(User user){
this.user=user;
}
//重写run方法的实现，在run方法中发送邮件给指定的用户
@Override
public void run() {
try {
Properties prop=new Properties();
prop.setProperty("mail.host",host);///设置QQ邮件服务器
prop.setProperty("mail.transport.protocol","smtp");///邮件发送协议
prop.setProperty("mail.smtp.auth","true");//需要验证用户密码
//QQ邮箱需要设置SSL加密
MailSSLSocketFactory sf=new MailSSLSocketFactory();
sf.setTrustAllHosts(true);
prop.put("mail.smtp.ssl.enable","true");
prop.put("mail.smtp.ssl.socketFactory",sf);
//使用javaMail发送邮件的5个步骤
//1.创建定义整个应用程序所需要的环境信息的session对象
Session session= Session.getDefaultInstance(prop, new Authenticator() {
@Override
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("xxxx@qq.xom","授权码");
}
});
//开启session的debug模式，这样可以查看到程序发送Email的运行状态
session.setDebug(true);
//2.通过session得到transport对象
Transport ts = session.getTransport();
//3.使用邮箱的用户名和授权码连上邮件服务器
ts.connect(host,username,password);
//4.创建邮件：写文件
//注意需要传递session
MimeMessage message=new MimeMessage(session);
//指明邮件的发件人
message.setFrom(new InternetAddress(from));
//指明邮件的收件人
message.setRecipient(Message.RecipientType.TO,new InternetAddress(user.getEmail()));
//邮件标题
message.setSubject("用户注册邮件");
String info = "恭喜您注册成功，您的用户名: " + user.getUsername() + ",您的密码" + user.getPassword() + ". 请妥善保管您的密码，如有问题请及时联系网站客服，再次欢迎您的加入！！";
message.setContent(info,"text/html;charset=UTF-8");//设置邮件的具体内容
message.saveChanges();
//邮件的文本内容
// message.setContent("恭喜你("+user.getUsername()+")成功注册！"+"密码："+user.getPassword()
// ,"text/html;charset=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);
}
}
}
web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<servlet>
<servlet-name>RegisterServlet</servlet-name>
<servlet-class>com.kuang.servlet.RegisterServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>RegisterServlet</servlet-name>
<url-pattern>/RegisterServlet.do</url-pattern>
</servlet-mapping>
</web-app>
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">
用户名：<input type="text" name="username"><br/>
密码：<input type="password" name="password"><br/>
邮箱：<input type="text" name="email"><br/>
<input type="submit" value="注册">
</form>
</body>
</html>
info.jsp:
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<h1>xxx网站提示</h1>
${message}
</body>
</html>
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.kuang</groupId>
<artifactId>WebMail2</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
</dependency>
</dependencies>
</project>
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