package com.example.demo;
import bean.Base_InformationBean;
import bean.InfoDAO;
import jakarta.servlet.ServletException;
import jakarta.servlet.annotation.WebServlet;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import java.io.IOException;
@WebServlet(value = "/updatepwd_servlet")
public class UpdatePwdServlet extends HttpServlet {
private String code;
private String password;
private Base_InformationBean hhh;
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
code=request.getParameter("nameid");
password=request.getParameter("pwd");
hhh=new Base_InformationBean();
hhh.setCode(code);
hhh.setPassword(password);
boolean flag= new InfoDAO().updateCode(hhh);
request.setAttribute("msg","密码修改完成");
try {
request.getRequestDispatcher("index.jsp").forward(request,response);
} catch (ServletException e) {
throw new RuntimeException(e);
}
}
public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException {
response.setContentType("text/html");
doGet(request,response);
}
}
登录后界面
<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<div style="text-align: center">
<h1 style="text-align: center;color: red">您已经登录成功</h1>
<jsp:useBean id="Info" class="bean.Base_InformationBean">
<jsp:setProperty name="Info" property="code" value="${sessionScope.User.code}"></jsp:setProperty>
<jsp:setProperty name="Info" property="password" value="密码不能告诉你哟"></jsp:setProperty>
</jsp:useBean>
<p>
<jsp:getProperty name="Info" property="code"/>
</p>
<p>
<jsp:getProperty name="Info" property="password"/>
</p>
<a href="confirm.jsp">修改密码</a>
</div>
</body>
</html>
修改密码的确认密码：
<%--
Created by IntelliJ IDEA.
User: 龚涵彬
Date: 2024/2/4
Time: 16:47
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<h1>身份验证</h1>
<div style="text-align: center">
<label>您的账号</label><input name="id" readonly value="${sessionScope.User.code}" >
<form id="change_pwd" action="confirm-servlet">
<label for="pwd">请输入旧密码</label><input name="pwd" id="pwd" type="text"><br>
<span id="msg" style="font-size: 12px;color:red">${msg}</span><br><br>
<button type="button" id="btm">确认</button>
</form>
<script>
document.getElementById("btm").addEventListener("click",function () {
var pwd=document.getElementById("pwd").value;
if(pwd.trim()===""||pwd.length===0)
{
document.getElementById("msg").innerText="密码不能为空";
return;
}
document.getElementById("change_pwd").submit();
})
</script>
</div>
</body>
</html>
package com.example.demo;
import bean.Base_InformationBean;
import bean.InfoDAO;
import jakarta.servlet.ServletException;
import jakarta.servlet.annotation.WebServlet;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.servlet.http.HttpSession;
import java.io.IOException;
import java.io.PrintWriter;
@WebServlet(value="/confirm-servlet")
public class ConfirmServlet extends HttpServlet {
private String code;
private String password;
private Base_InformationBean hhh;
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
HttpSession session= request.getSession();
code=((Base_InformationBean)session.getAttribute("User")).getCode();
System.out.println(code);
password=request.getParameter("pwd");
hhh=new Base_InformationBean();
hhh.setCode(code);
hhh.setPassword(password);
boolean flag= new InfoDAO().Login(hhh);
if(flag)
{
request.setAttribute("code",code);
try {
request.getRequestDispatcher("change_pwd.jsp").forward(request,response);
} catch (ServletException e) {
throw new RuntimeException(e);
}
session.removeAttribute("User");
//手动注销
session.invalidate();
}
else
{
request.setAttribute("msg","密码错误");
try {
request.getRequestDispatcher("confirm.jsp").forward(request,response);
} catch (ServletException e) {
throw new RuntimeException(e);
}
}
}
public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException {
response.setContentType("text/html");
doGet(request,response);
}
}
标签：hhh,登录,jakarta,request,import,2.14,servlet,response,页面
From： https://www.cnblogs.com/dmx-03/p/18040229