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package com.rehome.mqttclienttemperature.controller;
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import com.rehome.mqttclienttemperature.datasource.DataSource;
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import com.rehome.mqttclienttemperature.dto.ResponseDto;
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import com.rehome.mqttclienttemperature.utils.JdbcUtil;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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/**
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*
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* 背景
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* 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。
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* 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。
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*
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* 我们会用到fastjson,druid,mysql所以pom.xml增加依赖如下：
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*
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* <dependency>
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* <groupId>com.alibaba</groupId>
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* <artifactId>fastjson</artifactId>
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* <version>1.2.62</version>
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* </dependency>
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* <dependency>
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* <groupId>com.alibaba</groupId>
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* <artifactId>druid</artifactId>
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* <version>1.1.9</version>
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* </dependency>
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* <!-- Mysql驱动包 -->
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* <dependency>
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* <groupId>mysql</groupId>
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* <artifactId>mysql-connector-java</artifactId>
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* </dependency>
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*
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*/
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/**
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*源码下载
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* https://download.csdn.net/download/lxyoucan/85094574
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*
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* 参考
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* https://github.com/freakchick/DBApi
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*
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*SpringBoot中封装jdbc工具类
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* https://blog.csdn.net/lxyoucan/article/details/124042295
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*
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*
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*/
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@RestController
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public class JdbcDemoController {
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public static DataSource ds = new DataSource();
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static {
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//配置数据源
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ds.setId("1");
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ds.setName("mysql");
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//ds.setUrl("jdbc:mysql://192.168.3.7:3306/appserver?useSSL=false&characterEncoding=UTF-8&serverTimezone=GMT%2B8");
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ds.setUrl("jdbc:mysql://192.168.3.7:3306/appserver?useUnicode=true&characterEncoding=utf-8&useSSL=false&autoReconnect=true");
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ds.setUsername("root");
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ds.setPassword("Skyinno251,");
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ds.setDriver("com.mysql.cj.jdbc.Driver");
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}
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/**
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* 查询测试
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* @return
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*/
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//@RequestMapping("/api/list")
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public ResponseDto queryList()
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{
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String sql = "show tables";
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ResponseDto responseDto = JdbcUtil.executeSql(ds,sql);
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return responseDto;
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}
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}
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