springBoot框架整合mybatisPlus(超级好用！！！不用白不用)

曾经终败给现在 2023-06-10 07:28 15阅读 0赞

## 简易的框架创建好后，就开始整合mybatisPlus ##

## 真的是超级好用！！哈哈安利一下 ##

1.首先加入这几个依赖

<dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <scope>provided</scope>
        </dependency>
        
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>2.2.0</version>
        </dependency>
        
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        
        ******lombok插件是帮实体类节省get set方法*******不清楚的可以百度一下

2.更改application.properties配置文件

#mysql
    spring.datasource.url=jdbc:mysql://127.0.0.1:3306/spring_boot?autoReconnect=true&useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8
    spring.datasource.username=root
    spring.datasource.password=
    #驱动(这里我用的驱动 我还有点不很清楚 为什么是cj.jdbc.driver)
    spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
    #打开MybatisPlus 数据库字段使用驼峰命名法
    mybatis-plus.configuration.map-underscore-to-camel-case=true

3.编写接口  
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4.编写xml文件  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDMyODU2Ng_size_16_color_FFFFFF_t_70 1]  
实体类的注解使用  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDMyODU2Ng_size_16_color_FFFFFF_t_70 2]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDMyODU2Ng_size_16_color_FFFFFF_t_70 3]  
5.编写controller  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDMyODU2Ng_size_16_color_FFFFFF_t_70 4]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDMyODU2Ng_size_16_color_FFFFFF_t_70 5]  
6.就可以访问数据库了,而且有很多好用的简单查询,根据名字来直译,你想要的他都有  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDMyODU2Ng_size_16_color_FFFFFF_t_70 6]  
![在这里插入图片描述][20191026161241658.png]

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[20191026161241658.png]: /images/20230531/d01a2637dd2042208b82580d51a5dadc.png