springboot快速搭建web项目

雨点打透心脏的1/2处 2023-10-08 15:22 51阅读 0赞

### 1、idea创建springboot项目（项目名：web） ###

#### 1.1、删除spring-boot-starter依赖，新增spring-boot-starter-web依赖 ####

<dependency>
    	<groupId>org.springframework.boot</groupId>
    	<artifactId>spring-boot-starter-web</artifactId>
    </dependency>

### 2、引入mysql驱动 ###

<dependency>
    	<groupId>mysql</groupId>
    	<artifactId>mysql-connector-java</artifactId>
    	<scope>runtime</scope>
    </dependency>

### 3、整合mybatis、thymeleaf ###

<dependency>
    	<groupId>org.springframework.boot</groupId>
    	<artifactId>spring-boot-starter-thymeleaf</artifactId>
    </dependency>
    
    <dependency>
    	<groupId>org.mybatis.spring.boot</groupId>
    	<artifactId>mybatis-spring-boot-starter</artifactId>
    	<version>2.2.2</version>
    </dependency>

### 4、实体bean ###

public class User {
        
        private String name;
        private String pwd;
    
        public String getName() {
        
            return name;
        }
    
        public void setName(String name) {
        
            this.name = name;
        }
    
        public String getPwd() {
        
            return pwd;
        }
    
        public void setPwd(String pwd) {
        
            this.pwd = pwd;
        }
    }

### 5、controller层代码 ###

/**
     * @author W
     * @date 2022/4/25
     */
    @Controller
    @RequestMapping("/user")
    public class UserController {
        
        @Autowired
        private UserService userService;
    
        @RequestMapping("/toLogin")
        public String toLogin(){
        
            return "login";
        }
    
        @RequestMapping("/login")
        public String login(User user, Model model){
        
            Map user1 = userService.login(user);
            model.addAttribute("user",user1);
            return "index";
        }
    }

### 6、service层代码 ###

/**
     * @author W
     * @date 2022/4/25
     */
    @Service
    public class UserService {
        
        @Autowired
        private UserMapper userMapper;
    
        public Map login(User user){
        
            return userMapper.login(user);
        }
    }

### 7、dao层 ###

/**
     * @author W
     * @date 2022/4/25
     */
    @Repository
    @Mapper
    public interface UserMapper {
        
        Map login(User user);
    }

### 8、mapper文件 ###

<?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="com.wu.web.user.dao.UserMapper">
        <select id="login" parameterType="User" resultType="Map">
            select * from js_sys_user where user_code=#{name}
        </select>
    </mapper>

### 9、新建application.yml ###

server:
      port: 8081
    spring:
      datasource:
        url: jdbc:mysql://localhost:3306/dataSource?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=UTC
        username: root
        password: 密码
        driver-class-name: com.mysql.cj.jdbc.Driver
    mybatis:
      type-aliases-package: com.wu.web.user.entity
      mapper-locations: classpath:mappers/*.xml

### 10、前端页面 ###

#### 10.1登陆页面 ####

<!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
    </head>
    <body>
        <form action="/user/login">
            <p>账户：<input name="name"></p>
            <p>密码：<input name="pwd"></p>
            <p><button type="submit">提交</button> </p>
        </form>
    </body>
    </html>

#### 10.2、首页 ####

<!DOCTYPE html>
    <html lang="en" xmlns:th="http://www.thymeleaf.org">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
    </head>
    <body>
        <h5>index page</h5>
        <p>账户：<span th:text="${user.get('user_name')}"></span></p>
        <p>密码：<span th:text="${user.get('password')}"></span></p>
    </body>
    </html>

### 11、项目整体结构 ###

![在这里插入图片描述][ae8276ef34aa43af8067b525cc9dceff.png]

[ae8276ef34aa43af8067b525cc9dceff.png]: https://img-blog.csdnimg.cn/ae8276ef34aa43af8067b525cc9dceff.png