admin-client-temperature/src/main/java/com/rehome/mqttclienttemperature/controller/JdbcDemoController.java

package com.rehome.mqttclienttemperature.controller;


import com.rehome.mqttclienttemperature.datasource.DataSource;
import com.rehome.mqttclienttemperature.dto.ResponseDto;
import com.rehome.mqttclienttemperature.utils.JdbcUtil;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 *
 * 背景
 * 现在的数据层的开发，大多会使用如MyBatis或JPA之类的开发工具。这些开发工具给我们的开发过程中带来了极大的便利。
 * 但是在一些极端的场景下往往原生的jdbc方式操作数据库更灵活，性能更高。由于部分场景下MyBatis或JPA之类无法满足我的需求，所以我打算自己封装一套查数据库的工具类。
 *
 * 我们会用到fastjson,druid,mysql所以pom.xml增加依赖如下：
 *
 * <dependency>
 *     <groupId>com.alibaba</groupId>
 *     <artifactId>fastjson</artifactId>
 *     <version>1.2.62</version>
 * </dependency>
 * <dependency>
 *     <groupId>com.alibaba</groupId>
 *     <artifactId>druid</artifactId>
 *     <version>1.1.9</version>
 * </dependency>
 * <!-- Mysql驱动包 -->
 * <dependency>
 *     <groupId>mysql</groupId>
 *     <artifactId>mysql-connector-java</artifactId>
 * </dependency>
 *
 */

/**
 *源码下载
 * https://download.csdn.net/download/lxyoucan/85094574
 *
 * 参考
 * https://github.com/freakchick/DBApi
 *
 *SpringBoot中封装jdbc工具类
 * https://blog.csdn.net/lxyoucan/article/details/124042295
 *
 *
 */

@RestController
public class JdbcDemoController {
    public static DataSource ds = new DataSource();
    static {
        //配置数据源
        ds.setId("1");
        ds.setName("mysql");
        //ds.setUrl("jdbc:mysql://192.168.3.7:3306/appserver?useSSL=false&characterEncoding=UTF-8&serverTimezone=GMT%2B8");
        ds.setUrl("jdbc:mysql://192.168.3.7:3306/appserver?useUnicode=true&characterEncoding=utf-8&useSSL=false&autoReconnect=true");
        ds.setUsername("root");
        ds.setPassword("Skyinno251,");
        ds.setDriver("com.mysql.cj.jdbc.Driver");
    }

    /**
     * 查询测试
     * @return
     */
    //@RequestMapping("/api/list")
    public ResponseDto queryList()
    {
        String sql = "show tables";
        ResponseDto responseDto = JdbcUtil.executeSql(ds,sql);
        return responseDto;
    }
}