Springboot实现登录注册

功能：1、实现用户的登录

2、实现用户的注册以及重名的判断

LoginControl：

package com.example.demo.controls;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.ModelAndView;
import com.example.demo.service.*;@RestController
public class LoginControl {@Autowiredprivate UserInfServiceInterface userInfService;@RequestMapping("/login")public ModelAndView login(String userid, String userpwd) {if (userInfService.login(userid, userpwd) == 1)return new ModelAndView("login_success.jsp");elsereturn new ModelAndView("login_failure.jsp");}}

RegisterControl：

package com.example.demo.controls;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;import com.example.demo.service.*;import com.example.demo.model.UserInf;@RestController
public class RegisterControl {@Autowiredpublic UserInfServiceInterface userInfService;@RequestMapping("/register")public ModelAndView register(UserInf ui) {if (userInfService.register(ui) == 1)return new ModelAndView("register_success.jsp");else if (userInfService.register(ui) == 0)return new ModelAndView("register_failure_user.jsp");elsereturn new ModelAndView("register_failure.jsp");}}

UserInfDaoInterface：

package com.example.demo.dao;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Component;import com.example.demo.model.*;
@Mapper
public interface UserInfDaoInterface {@Select("select count(*) from userinf where userid=#{userid} and userpwd=#{userpwd}")public int selectByIdPwd(@Param("userid")String userid,@Param("userpwd")String userpwd);@Select("select count(*) from userinf where realname=#{realname}")public int selectByRealname(@Param("realname")String realname);@Insert("insert into userinf values(#{userid},#{userpwd},#{realname})")public int insert(UserInf ui);
}

UserInf：

package com.example.demo.model;public class UserInf {private String userid;private String userpwd;private String realname;public String getUserid() {return userid;}public void setUserid(String userid) {this.userid = userid;}public String getUserpwd() {return userpwd;}public void setUserpwd(String userpwd) {this.userpwd = userpwd;}public String getRealname() {return realname;}public void setRealname(String realname) {this.realname = realname;}
}

UserInfService：

package com.example.demo.service;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;import com.example.demo.dao.UserInfDaoInterface;
import com.example.demo.model.UserInf;@Service
@Transactional
public class UserInfService implements UserInfServiceInterface {
@Autowiredprivate UserInfDaoInterface userInfDao;@Overridepublic int login(String userid, String userpwd) {return userInfDao.selectByIdPwd(userid, userpwd);}@Overridepublic int register(UserInf ui) {// TODO Auto-generated method stub// TODO Auto-generated method stubif(userInfDao.selectByRealname(ui.getRealname())==1)return 0;else{if(userInfDao.insert(ui)==1)return 1;elsereturn 2;}}}

UserInfServiceInterface：

package com.example.demo.service;import com.example.demo.model.UserInf;public interface UserInfServiceInterface {public int login(String userid,String userpwd);public int register(UserInf ui);}

DemoApplication：

package com.example.demo;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplication
public class DemoApplication {public static void main(String[] args) {SpringApplication.run(DemoApplication.class, args);}}

application.properties：

server.port=8082spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/ssm?characterEncoding=utf8&useSSL=false&serverTimezone=UTC
spring.datasource.username=root
spring.datasource.password=root

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
<head>
<title>登录界面</title>
</head>
<body><form method="post" action="login"><table><tr><th colspan="2">用户登录</th></tr><tr><td align="right">用户名：</td><td><input type="text" name="userid" /></td></tr><tr><td align="right">密码：</td><td><input type="password" name="userpwd" /></td></tr><tr><td align="left"><input type="submit" value="登录" /></td><td>未注册者，请先注册，单击 <a href="register.jsp">注册</a></td></tr></table></form><br>
</body>
</html>

login_success.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<html>
<head><title>登录成功</title>
</head>
<body>欢迎你，${user.userRealName} ，你登入成功！！<br>进入主页面，请点击<a href="index.jsp">主页面</a>。。。   
</body>
</html>

login_failure

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<html><head>    <title>你的账号密码不匹配！</title>	</head>  <body><h2 align="center"><font color="red">对不起，你填写的账号和密码不正确！请</font><a href="login.jsp">重新登录</a>!</h2></body>
</html>

<%@ page contentType="text/html" pageEncoding="UTF-8"%>
<!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>注册页面</title>
<script type="text/javascript">    function isValidate(form) {		var username=document.getElementById("username").value;			var userpass=document.getElementById("userpassword").value;		var userpass1=document.getElementById("userpass1").value;		if (userpass != userpass1) {alert("两次密码输入不一致，请重新输入！");			return false;}else if (userpass.length<=0 ||username.length<=0 ) {alert("用户名 以及密码不能为空，请重新输入！");			return false;}else{return true;}        }
</script>
</head><body><h3 align="left">欢迎注册我们的系统，请认真填写您的信息</h3><form action="register" method="post" onsubmit="return isValidate()"><table><tr><td align="right">账户名：</td><td><input type="text" name="userid" id="username"></td></tr><tr><td align="right">为您的账户设置密码：</td><td><input type="password" name="userpwd" id="userpassword"></td></tr><tr><td align="right">再次确认您的密码：</td><td><input type="password" id="userpass1"></td><td></td></tr><tr><td align="right">真实姓名：</td><td><input type="text" name="realname" id="userrealname"></td><td></td></tr><tr><td align="right"><input type="submit" value="提交"></td><td colspan="2"><input type="reset" value="重新填写"></td></tr></table></form></body>
</html>

register_success.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<html><head>    <title>注册成功！</title>	</head>  <body ><h3>恭喜，${ui.realname},你成功注册了我们的管理系统！点此<a href="login.jsp">登录</a></h3></body>
</html>

register_failure

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<html><head>    <title>注册失败</title></head>  <body><h3>对不起，数据库出错，没有正确保存，请重新注册。</h3> <br><h2>请点击<a href="register.jsp">注册</a>。。。</h2></body>
</html>

register_failure_user

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<html><head>    <title>注册失败</title></head>  <body><h3>对不起，此用户名：${ui.realname}已被占用，请重新注册。</h3> <br><h2>请点击<a href="register.jsp">注册</a>。。。</h2></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 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>3.2.0</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.example</groupId><artifactId>demo</artifactId><version>0.0.1-SNAPSHOT</version><name>demo</name><description>Demo project for Spring Boot</description><properties><java.version>17</java.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>3.0.3</version></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.20</version></dependency>	<dependency><groupId>org.apache.tomcat.embed</groupId><artifactId>tomcat-embed-jasper</artifactId><scope>provided</scope></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-devtools</artifactId><optional>true</optional></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>