SSM framework implements user login and registration functions

---

structure

 SysUserController.java

package lx.controller;

import lx.entity.model.SysUser;
import lx.service.SysUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletRequest;

@Controller
@RequestMapping("/user")
public class SysUserController {
    @Autowired
    private SysUserService sysUserService; 
    /** 
        // 
        Successful login 
        request.getSession().setAttribute("loginUser", find);
     * Login page 
     * @return 
     */ 
    @GetMapping("/tologin") 
    public String login() { 
        System.out.println("nnn"); 
        return "/sysUser/login"; 
    } 


    @PostMapping("/login") 
    @ResponseBody 
    public String login(SysUser sysUser, HttpServletRequest request){ 
        SysUser find = sysUserService.checkLogin(sysUser.getAccount(),sysUser.getPassword()); 
        if(find==null){ 
            return "Login verification failed! Account error, Wrong password or user disabled!"; 
        return "ok"; 
    } 
// -----------add user 
    @GetMapping("/add") 
    public String add(Model model){ 
        SysUser entity=new SysUser();
        entity.setStatus(0);
        model.addAttribute("item",entity);
        return "/sysUser/register";
    }
    //新增-post
    @PostMapping("/add")
    @ResponseBody
    public String add(SysUser entity){
        System.out.println("234");
        try {
            sysUserService.insert(entity);
            return "ok";
        } catch (Exception e) {
            return e.getMessage();
        }
    }
}
SysUser.java entity class

package lx.entity.model; 
//User entity class 
public class SysUser { 
    private int id;//Primary key 
    private String name;//User name 
    private String account;//Login account 
    private String password;//Login password 
    private int status ;//Status 0 normal, 1 disabled 

    public int getId() { 
        return id; 
    } 

    public void setId(int id) { 
        this.id = id; 
    } 

    public String getName() { 
        return name; 
    } 

    public void setName(String name ) { 
        this.name = name; 
    } 

    public String getAccount() { 
        return account; 
    }

    public void setAccount(String account) {
        this.account = account;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public int getStatus() {
        return status;
    }

    public void setStatus(int status) {
        this.status = status;
    }
}

SysUserMapper.java

package lx.mapper;

import lx.entity.model.SysUser;
import org.apache.ibatis.annotations.Param;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.stereotype.Repository;

@MapperScan
@Repository
public interface SysUserMapper {

    //登录验证
    SysUser checkLogin(@Param("account")String account, @Param("password")String password);

    int insert(SysUser record);
}

SysUserServiceImpl.java

package lx.service.impl;

import lx.entity.model.SysUser;
import lx.mapper.SysUserMapper;
import lx.service.SysUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@Transactional
public class SysUserServiceImpl implements SysUserService {
@Autowired
    private SysUserMapper sysUserMapper;
    @Override
    public SysUser checkLogin(String account, String password) {
        System.out.println(account+password+"lllx");
        return sysUserMapper.checkLogin(account,password);
    }

    @Override
    public int insert(SysUser record) {
        System.out.println(record+"1111");
        return sysUserMapper.insert(record);
    }
}

SysUserService.java

package lx.service;

import lx.entity.model.SysUser;

public interface SysUserService {
//    登录
    SysUser checkLogin(String account, String password);
//    增加用户
   int insert(SysUser record);
}

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-3.0.xsd
       http://www.springframework.org/schema/mvc
    <context:component-scan base-package="lx"/>
       http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd">
    <!-- Scan classes to complete Bean creation and automatic dependency injection --> 
    <mvc:annotation-driven /> < 
!-- <!– Static resource access–>--> < 
!-- <mvc :resources location="/images/" mapping="/images/**"/>--> <!-- 
<mvc:resources location="/css/" mapping="/css/**"/>- -> 
<!-- <mvc:resources location="/js/" mapping="/js/**"/>--> <! 
    -- Configure view resolver --> 
    <bean class="org.springframework .web.servlet.view.InternalResourceViewResolver"> 
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/views/" />
        <property name="suffix" value=".jsp" />
    </bean>
    <!--数据库配置 -->
    <bean id = "propertyConfigurer" class = "org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <list>
                <value>classpath:jdbc.properties</value>
            </list>
        </property>
    </bean>
    <bean id="sqlSession" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 数据源注入 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 映射文件扫描 -->
        <property name="mapperLocations" value="classpath:SysUserMapper.xml" />
        <!-- 别名包 -->
        <property name="typeAliasesPackage" value="lx.entity.model"></property> 
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close ">
    </bean>
    <!-- database connection pool -->
        <!-- 基本属性 url、user、password -->
        <property name="driverClassName" value="${driver}"/>
        <property name="url" value="${url}"/>
        <property name="username" value="${username}"/>
        <property name="password" value="${password}"/>
        <!-- 配置初始化大小、最小、最大 -->
        <property name="initialSize" value="10"/>
        <property name="minIdle" value="10"/>
        <property name="maxActive" value="50"/>
        <!-- Configure the waiting time for obtaining connection timeout --> 
    <!--Load mapper interface-->
    </bean>
        <!-- How long does it take to configure the interval to detect idle connections that need to be closed, in milliseconds -- >
        <property name="maxWait" value="60000"/> 
        <property name="timeBetweenEvictionRunsMillis" value="60000" /> 
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> 
        <!-- Scanned interface package SSM0411.mapper --> 
        <property name="basePackage" value="lx.mapper"/> 
        <property name="sqlSessionFactoryBeanName" value="sqlSession"></property> 
    </bean> 
    <!-- Configure Transaction Manager--> 
    <bean id="transactionManager" class="org.springframework.jdbc.datasource. DataSourceTransactionManager"> 
        <property name="dataSource" ref="dataSource" /> 
    </bean> 
    <!-- Interceptor--> 
    <mvc:interceptors> 
        <!-- Internationalization operation interceptor --> 
        <bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor" /> 
    </mvc:interceptors> 
</beans> SysUserMapper.xml

<?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" >
<mapper namespace="lx.mapper.SysUserMapper" >
    <resultMap id="BaseResultMap" type="lx.entity.model.SysUser" >
        <id column="id" property="id" jdbcType="INTEGER" />
        <result column="name" property="name" jdbcType="VARCHAR" />
        <result column="account" property="account" jdbcType="VARCHAR" />
        <result column="password" property="password" jdbcType="VARCHAR" />
        <result column="status" property="status" jdbcType="INTEGER" />
    </resultMap>

<!-- Obtain entity based on login account--> 
<select id="checkLogin" resultMap="BaseResultMap"> 
    select * 
    from sys_user 
    where account=#{account} and password=#{password} and status=0 
</select >

<insert id="insert" parameterType="lx.entity.model.SysUser" >
    insert into sys_user (id, name, account, password, status)
    values (#{id}, #{name}, #{account}, #{password}, #{status})
</insert>

jdbc.properties

driver=com.mysql.cj.jdbc.Driver
#mytest\u662F\u672C\u5730\u6570\u636E\u5E93\u540D
url=jdbc:mysql://localhost:3306/smm?useUnicode=true&characterEncoding=utf-8&serverTimezone=GMT%2B8
#\u4E0B\u9762\u8F93\u5165\u81EA\u5DF1\u6570\u636E\u5E93\u7684\u8D26\u53F7\u548C\u5BC6\u7801
username=root
password=502216
#\u5B9A\u4E49\u521D\u59CB\u8FDE\u63A5\u6570
initialSize=0
#\u5B9A\u4E49\u6700\u5927\u8FDE\u63A5\u6570
maxActive=20
#\u5B9A\u4E49\u6700\u5927\u7A7A\u95F4
maxIdle=20
#\u5B9A\u4E49\u6700\u5C0F\u7A7A\u95F4
minIdle=1
#\u5B9A\u4E49\u6700\u957F\u7B49\u5F85\u65F6\u95F4
maxWait=60000

index.jsp

<%--
  Created by IntelliJ IDEA.
  User: lx
  Date: 2022/4/18
  Time: 13:52
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<html>
<head>
    <title>用户登录</title>
    <%--    <link href="/jxc/css/login.css" rel="stylesheet" />--%>
    <script src="https://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
    <%--    <script src="/jxc/js/jquery-migrate-1.1.1.js"></script>--%> 
        //ajax login verification, successful Jump to the home page, otherwise an error message will be prompted
    <script>
    <%-- <script src="/jxc/js/layer/layer.js"></script>--%>
        function onLogin(){
            var account=$("#account").val();
            var password=$("#password").val();
            console.log(account+password);
            // $.ajax({
            //     type: "post",
            //     url: "user/login",
            //     data: [account=account,passwrod=passwrod],
            //     dataType: "text",
            //     success: function (rdata) {
            //         if (rdata=="ok") {
            //             window.location.href="/home/index"
            //         } else {
            //             alert(rdata);
            //         }
            //     }
            // });
            $.post("user/login",{
                account:account,
                password:password
            },
                function (rdata){
                    if (rdata=="ok") {
                                    window.location.href="home/index"
                                } else {
                                    alert(rdata);
                                }
                }
            )
        }
    </script>
</head>
<body>
<div class="container">
    <h1>用户登录</h1>
    <form>
        <div class="row">
            <span>登录账号：</span>
            <input type="text" class="textBox" id="account" name="account" />
        </div> 
        <div class="row"> 
            <span>Login password:</span> 
            <input type="password" class="textBox" id="password" name="password" />
        </div> 
        <div class="row"> 
            <input type="button" class="btn2" value="login " οnclick="onLogin()" /> 
        </div> 
        <div class="row"> 
            No account? <a href="${pageContext.request.contextPath }/user/add">Register account</a> 
        </div> 
    </form> 
</div> 
</body> 
</html>

register.jsp

<%--
  Created by IntelliJ IDEA.
  User: lx
  Date: 2022/4/18
  Time: 19:29
  To change this template use File | Settings | File Templates.
--%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>新增</title>
<%--    <link href="/ssm1/css/edit.css" rel="stylesheet" />--%>
    <script src="https://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<%-- <script src="/ssm1/js/layer/layer.js"></script>--%> 
                return; 
            }
    <script type="text/javascript">
        function onSave() {
            let name=$("#name").val(); 
            let account=$("#account").val(); 
            let password=$("#password").val() 
            console.log(name+ account+password) 
            //1. Verify input 
            //username 
            if ($("#name").val().trim() == ""){ 
                alert("Please enter the username"); 
                $(" #name").focus(); 
                return; 
            } 
            //login account 
            if ($("#account").val().trim() == "") { 
                alert("Please enter the login account"); 
                $ ("#account").focus(); 
            //2. Submit data 
            $.post("add",{
                    name:name,
                    account:account,
                    password:password
                },
                function (rdata){
                    if (rdata=="ok") {
                        // window.location.href="/user/index"
                    alert("注册成功")
                    } else {
                        alert(rdata);
                    }
                });
        }
        function onCancel() {
            // parent.layer.close(parent.layer.index);//Close the pop-up window 
        <div class="editor-label">Username</div>
        <legend>User Information</legend>
    <fieldset>
</head>
    </script>
        } 
<body> 
<form>
        <div class="editor-field">
            <input type="text" value="${item.name}" name="name" id="name" />
        </div>
        <div class="editor-label">登录账号</div>
        <div class="editor-field">
            <input type="text" value="${item.account}" name="account" id="account" />
        </div>
        <div class="editor-label">登录密码</div>
        <div class="editor-field">
            <input type="password" value="${item.password}" name="password" id="password" />
        </div>
    </fieldset>
</form>
<div class="toolbar">
    <input type="button" class="btn2" value="注册" οnclick="onSave()" />
    <input type="button" class="btn2" value="取消" οnclick="onCancel()" />
</div>
</body>
</html>

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views/home/index.jsp is the content of successful login

---

Summarize

record it