一篇超详细的Spring Boot对jdbc支持的文章
作者：牛哄哄的柯南
JdbcTemplate 是在JDBC API基础上提供了更抽象的封装，并提供了基于方法注解的事务管理能力。 通过使用SpringBoot自动配置功能并代替我们自动配置beans，下面给大家介绍spring boot中使用JdbcTemplate相关知识，一起看看吧
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: 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！