关于Spring Boot对jdbc的支持问题

项目结构

pom.xml

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 http://maven.apache.org/xsd/maven-4.0.0.xsd">    <parent>        <artifactId>spring-boot-02</artifactId>        <groupId>com.keafmd</groupId>        <version>1.0-SNAPSHOT</version>    </parent>    <modelVersion>4.0.0</modelVersion>    <artifactId>spring-boot-08</artifactId>    <dependencies>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-web</artifactId>        </dependency>        <!-- 解析jsp类库  -->        <dependency>            <groupId>org.apache.tomcat.embed</groupId>            <artifactId>tomcat-embed-jasper</artifactId>        </dependency>        <dependency>            <groupId>jstl</groupId>            <artifactId>jstl</artifactId>            <version>1.2</version>        </dependency>        <!-- JDBC-启动器, 默认的数据源 HikariCP -->        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-jdbc</artifactId>        </dependency>        <!-- JDBC-启动器, 默认的数据源 HikariCP -->        <dependency>            <groupId>mysql</groupId>            <artifactId>mysql-connector-java</artifactId>            <version>5.1.46</version>        </dependency>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-test</artifactId>        </dependency>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-devtools</artifactId>        </dependency>    </dependencies></project>

application.yml

server:  port: 80spring:  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.dao;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.jdbc.core.JdbcTemplate;import org.springframework.stereotype.Repository;import java.util.List;/** * Keafmd * * @ClassName: UserDao * @Description: * @author: 牛哄哄的柯南 * @Date: 2021-04-08 11:47 * @Blog: https://keafmd.blog.csdn.net/ */@Repositorypublic class UserDao {    @Autowired    JdbcTemplate jdbcTemplate;    public List userList(){        String sql ="select * from user";        return jdbcTemplate.queryForList(sql);    }}

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/ */@Servicepublic 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/ */@RestControllerpublic 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

到此这篇关于Spring Boot对jdbc的支持的文章就介绍到这了,更多相关Spring Boot支持jdbc内容请搜索以前的文章或继续浏览下面的相关文章希望大家以后多多支持！

往事是尘封在记忆中的梦，而你是我唯一鲜明的记忆，