SpringBoot实现简单的登录注册（超级详细）第⼀步：建⽴简单的项⽬
第⼆步：建⼀个简单的数据表
第三步：配置⽂件如下：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="/POM/4.0.0" xmlns:xsi="/2001/XMLSchema-instance"        xsi:schemaLocation="/POM/4.0.0 /xsd/maven-4.0.
0.xsd">    <modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.5</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.wei</groupId>
<artifactId>demo01</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo01</name>
<name>demo01</name>
<description>Demo project for Spring Boot</description>    <properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>        </dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId&batis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>            <version>2.1.0</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.24</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>                <artifactId>spring-boot-maven-plugin</artifactId>                <configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>                            <artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
</project>
application.properties⽂件配置：
#改变端⼝号:
server.port=8080
#给整个项⽬加个前缀，多个项⽬就不会重复：
#t-path=/first
#ade=3
#school.classNum=4
spring.datasource.sql.cj.jdbc.Driver
spring.datasource.password=root
spring.datasource.username=root
spring.datasource.url=jdbc:mysql://localhost:3306/demo?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8&useSSL=true spring.thymeleaf.prefix=classpath:/templates/
#mapper.batis.mappermon.Mapper
#-empty=true
项⽬⽬录如下：
LoginController.java⽂件：
注意：@Controller只能⽤这个，不能⽤@RestController
package com.ller;
import com.ity.UserBean;
import com.wei.demo01.service.UserService;
slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod;
import javax.annotation.Resource;
@Slf4j
@Controller
public class LoginController {
//将Service注⼊Web层
@Resource
UserService userService;
param name//实现登录
@RequestMapping("/login")
public String show(){
return "login";
}
@RequestMapping(value = "/loginIn",method = RequestMethod.POST)    public String login(String name,String password){
UserBean userBean = userService.LoginIn(name, password);
log.info("name:{}",name);
log.info("password:{}",password);
if(userBean!=null){
return "success";
}else {
return "error";
}
}
@RequestMapping("/signup")
public String disp(){
return "signup";
}
//实现注册功能
@RequestMapping(value = "/register",method = RequestMethod.POST)    public String signUp(String name,String password){
userService.Insert(name, password);
return "success";
}
}
UserBean.java⽂件

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