JAVA记住密码功能的实现代码
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2022-08-06 21:25:39
准备:ssm框架,mysql数据库
用户表 user
实体类:
public class user {
/**
* 主键id
*/
p...
准备:ssm框架,mysql数据库
用户表 user
实体类:
public class user { /** * 主键id */ private integer userid; /** * 账号 */ private string username; /** * 密码 */ private string password; public integer getuserid() { return userid; } public void setuserid(integer userid) { this.userid = userid; } 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; } }
usermapper
<?xml version="1.0" encoding="utf-8" ?> <!doctype mapper public "-//mybatis.org//dtd mapper 3.0//en" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <!-- 命名空间 --> <mapper namespace="com.luowx.mapper.usermapper"> <resultmap id="usermap" type="user"> <id property="userid" column="user_id"/> <result property="username" column="username"/> <result property="password" column="password"/> </resultmap> <select id="getuserbyname" resultmap="usermap"> select * from s_user where username=#{username} </select> </mapper>
mapper层
public interface usermapper { user getuserbyname(string username); }
service层
public interface userservice { user getuserbyname(string username, string password, httpsession session, httpservletrequest httpservletrequest, httpservletresponse httpservletresponse); }
impl
@service public class userserviceimpl implements userservice { @autowired private usermapper usermapper; @override public resultvo getuserbyname(string username, string password, httpsession session, httpservletrequest httpservletrequest, httpservletresponse httpservletresponse) { string remember = httpservletrequest.getparameter("remember"); if (username!= null && username!= 0){ user user = usermapper.getuserbyname(username); if (user != null && user.getpassword().equals(password)){ session.setattribute("user", user); if (remember != null){ cookie cookieuser = new cookie("username", username); cookie cookiepass = new cookie("password", password); cookieuser.setmaxage(60 * 60 * 24); cookiepass.setmaxage(60 * 60 * 24); httpservletresponse.addcookie(cookieuser); httpservletresponse.addcookie(cookiepass); return resultvo.success(user); } return resultvo.error(1, "用户名或密码错误"); } return resultvo.error(3, "用户名或密码不能为空"); } }
controller
@restcontroller public class usercontroller { @autowired private userservice userservice; //登录 @requestmapping("/getuserbyname") public resultvo getuserbyname(string username, string password, httpsession session, httpservletrequest httpservletrequest, httpservletresponse httpservletresponse){ return userservice.getuserbyname(username, password, session, httpservletrequest, httpservletresponse); } }
前端代码(jsp)
html的自己修改下,样式是bootstrap的
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ page contenttype="text/html;charset=utf-8" language="java" %> <html> <head> <title>登录</title> <link rel="stylesheet" href="/bootstrap4/css/bootstrap.min.css" rel="external nofollow" > <style> body{ background-color: #fafafa; } .nice{ position: relative; display: flex; align-items: center; justify-content: center; } .container{ margin-top: 100px; display: flex; justify-content: space-between; border: #b3b7bb 2px solid; border-radius: 5px; } #loginform{ width: 300px; background-color: rgba(255,255,255,0.7); margin-top: 30px; border: #b3b7bb 1px solid; border-radius: 5px; } </style> </head> <body> <div class="container"> <div><img src="img/login_bg_pic.jpg"></div> <form action="getuserbyname" method="post" id="loginform"> <div class="form-group"> <label for="exampleinputemail1">用户名</label> <input type="text" class="form-control" id="exampleinputemail1" name="userid" autocomplete="off" value="${userid}"> </div> <div class="form-group"> <label for="exampleinputpassword1">密码</label> <input type="password" class="form-control" id="exampleinputpassword1" name="password" value="${password}"> </div> <%--验证码--%> <div class="form-group"> <div class="input-icon" style="display: flex;justify-content: space-around;align-items: center"> <i class="fa fa-picture-o"></i> <input class="form-control" style="width:180px;" type="text" id="verifycode" name="verifycode" placeholder="验证码" maxlength="4" autocomplete="off"> <img src="${pagecontext.request.contextpath }/getverifycode" width="110" height="34" id="verifycodeimage"> </div> </div> <div class="custom-control custom-checkbox mb-3 was-validated"> <input type="checkbox" class="custom-control-input" id="rem" name="remember" checked> <label class="custom-control-label" for="rem">记住密码</label> </div> <button type="button" class="btn btn-primary login">登 录</button> <a href="/forgotpass" rel="external nofollow" ><button type="button" class="btn btn-danger">忘记密码</button></a> <br><br> <div class="nice"> 欢迎来到:<br>教务综合信息服务平台 </div> </form> <script src="/js/jquery-3.4.1.min.js"></script> <script src="/bootstrap4/js/bootstrap.min.js"></script> <script> $(function () { $(".login").click(function () { //发送ajax请求 $.ajax({ url:'getuserbyname', type:'post', data:$("#loginform").serialize(), success:function (res) { console.log(res); if (res.status === 0){ if(res.data.role === 0) { location.href = "overview"; }else if (res.data.role === 1){ location.href = "teacher"; }else if (res.data.role === 2){ location.href = "teacher"; }else if (res.data.role === 3){ location.href = "student"; } } else { $(".nice").html("<div>" + res.message + "</div>"); } } }); }); }); </script> </div> </body> </html>
总结
以上所述是小编给大家介绍的java记住密码功能的实现代码,希望对大家有所帮助
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