一篇超详细的Spring Boot对jdbc支持的文章

目录

• 项目结构
• pom.xml
• 启动类
• Dao层
• Service层
• Controller层
• 测试类测试
• 总结

项目结构

pom.xml

pom.xml：

    
        spring-boot-02
        com.keafmd
        1.0-SNAPSHOT
    
    4.0.0
    spring-boot-08
    
        
            org.springframework.boot
            spring-boot-starter-web
        
        
        
            org.apache.tomcat.embed
            tomcat-embed-jasper
        

        
            jstl
            jstl
            1.2
        

        
        
            org.springframework.boot
            spring-boot-starter-jdbc
        
        
        
            mysql
            mysql-connector-java
            5.1.46
        

        
            org.springframework.boot
            spring-boot-starter-test
        
        
            org.springframework.boot
            spring-boot-devtools
        
    

application.yml

server:
  port: 80
spring:
  datasource:
    url: jdbc:mysql://127.0.0.1:3306/ssm-java1?useSSL=false
    driver-class-name: com.mysql.jdbc.Driver
    username: root
    password: 18044229

启动类

package com.keafmd;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;/** * Keafmd * * @ClassName: App08 * @Description: * @author: 牛哄哄的柯南 * @Date: 2021-04-08 11:48 * @Blog: https://keafmd.blog.csdn.net/ */@SpringBootApplicationpublic class App08 {    public static void main(String[] args) {        SpringApplication.run(App08.class, args);    }}

Dao层

UserDao：

package com.keafmd;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
/**
 * Keafmd
 *
 * @ClassName: App08
 * @Description:
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-08 11:48
 * @Blog: https://keafmd.blog.csdn.net/
 */

@SpringBootApplication
public class App08 {
    public static void main(String[] args) {
        SpringApplication.run(App08.class, args);
    }
}

Service层

IUserService ：

package com.keafmd.service;
import java.util.List;
/**
 * Keafmd
 *
 * @ClassName: IUserService
 * @Description:
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-08 11:59
 * @Blog: https://keafmd.blog.csdn.net/
 */
public interface IUserService {
    List list();
}

UserServiceImpl：

package com.keafmd.service.impl;
import com.keafmd.dao.UserDao;
import com.keafmd.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
/**
 * Keafmd
 *
 * @ClassName: UserServiceImpl
 * @Description:
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-08 12:00
 * @Blog: https://keafmd.blog.csdn.net/
 */
@Service
public class UserServiceImpl implements IUserService {
    @Autowired
    UserDao userDao;
    @Override
    public List list() {
        return userDao.userList();
    }
}

Controller层

UserController：

package com.keafmd.controller;
import com.keafmd.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
/**
 * Keafmd
 *
 * @ClassName: UserController
 * @Description:
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-08 18:04
 * @Blog: https://keafmd.blog.csdn.net/
 */
@RestController
public class UserController {
    @Autowired
    IUserService userService;
    /**
     * http://127.0.0.1/userlist
     * @return
     */
    @RequestMapping("userlist")
    List UserList(){
        return userService.list();
    }
}

测试类测试

UserDaoTest：

package com.keafmd.dao;
import com.keafmd.App08;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import java.util.List;
import static org.junit.jupiter.api.Assertions.*;
@SpringBootTest(classes = App08.class)
class UserDaoTest {
    @Autowired
    UserDao userDao;
    @Test
    public void test(){
        List userlist = userDao.userList();
        for (Object o : userlist) {
            System.out.println(o);
        }
    }
}

运行test方法的效果：

运行启动类，测试效果

运行启动类，访问：http://127.0.0.1/userlist

总结

本篇文章就到这里了，希望能给你带来帮助，也希望您能够多多关注脚本之家的更多内容！