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这篇文章将为大家详细讲解有关SpringBoot如何实现简单的登录注册，小编觉得挺实用的，因此分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获。
pom.xml文件配置：
<?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>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> <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>org.mybatis.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： #server.servlet.context-path=/first #school.grade=3 #school.classNum=4 spring.datasource.driver-class-name=com.mysql.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.mappers=tk.mybatis.mapper.common.Mapper #mapper.not-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.wei.demo01.controller;
import com.wei.demo01.entity.UserBean;
import com.wei.demo01.service.UserService;
import lombok.extern.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;
//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
package com.wei.demo01.entity;
import java.io.Serializable;
public class UserBean implements Serializable {
private Integer id;
private String name;
private String password;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}UserMapper接口文件：
注意：我在这里为偷懒，开始加入了@Mapper注解，目的就是为了不再写mapper映射文件（那个xml写的是真的是太慢了）
package com.wei.demo01.mapper;
import com.wei.demo01.entity.UserBean;
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 org.springframework.stereotype.Repository;
@Mapper
public interface UserMapper {
//查询，可以实现登录功能
@Select("SELECT * FROM user WHERE name = #{name} AND password = #{password}")
UserBean getInfo(@Param("name") String name, @Param("password") String password);
//多个参数要加@Param修饰
//增加，可以实现注册功能
@Insert("insert into user(name,password)values(#{name},#{password})")
void saveInfo(@Param("name") String name, @Param("password") String password);
}UserService.java文件
package com.wei.demo01.service;
import com.wei.demo01.entity.UserBean;
import com.wei.demo01.mapper.UserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
@Service
public class UserService {
//将dao层属性注入service层
@Resource
private UserMapper userMapper;
public UserBean LoginIn(String name, String password) {
return userMapper.getInfo(name,password);
}
public void Insert(String name,String password){
userMapper.saveInfo(name, password);
}
}下面都是一些静态html网页：
下面就把所有的代码按顺序依次放在一个框子里面;
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>error</title> </head> <body> <h2>登陆失败！</h2> </body> </html> <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>index</title> </head> <body> <h2>你好啊</h2> </body> </html> <!--登录页面--> <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>login</title> </head> <body> <form role="form" action = "/loginIn" method="post"> 账号：<input type="text" id="name" name = "name"> <br> 密码：<input type="password" id = "password" name = "password"> <br> <input type="submit" id = "login" value = "login"> <input type="button" id="register" value="注册"> </form> </body> </html> <!--注册页面--> <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>注册成功</title> </head> <body> <form role="form" action="/register" method="post"> 请输入姓名:<input type="text" name="name" id="name"><br> 请输入密码：<input type="password" name="password" id="password"><br> <input type="submit" name="sign" value="提交"> </form> </body> </html> <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>success</title> </head> <body> <h2>欢迎，恭喜登陆成功/注册成功</h2> </body> </html>
最后登录效果展示：
注册效果展示：
注册成功！数据库更新成功！
有网友说我这个注册按钮打不开，跳转不到注册页面，那我在这里更新一下：
在登录页面中加入以下内容即可：
关于“SpringBoot如何实现简单的登录注册”这篇文章就分享到这里了，希望以上内容可以对大家有一定的帮助，使各位可以学到更多知识，如果觉得文章不错，请把它分享出去让更多的人看到。
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