springBoot使用通用mapper

最新推荐文章于 2023-12-07 18:15:19 发布

hainandetong

最新推荐文章于 2023-12-07 18:15:19 发布

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本文链接：https://blog.youkuaiyun.com/chaogaoxiaojifantong/article/details/89437280

本文详细介绍了如何在项目中集成MyBatis Plus，包括添加依赖、配置Bean、设置Mapper扫描器、创建Mapper接口及配置启动项。通过具体代码示例，帮助读者快速上手并理解MyBatis Plus的使用方法。

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1、添加依赖

 <dependency>
            <groupId>tk.mybatis</groupId>
            <artifactId>mapper</artifactId>
            <version>4.0.0</version>
        </dependency>

2、配置bean

package com.canteen.adminService.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import  tk.mybatis.spring.annotation.MapperScannerRegistrar;
import tk.mybatis.spring.mapper.MapperScannerConfigurer;

import java.util.Properties;

@Configuration
public class AdminConfiguration {

    @Bean
    public MapperScannerConfigurer mapperScannerConfigurer(){
        MapperScannerConfigurer mapperScannerConfigurer=new MapperScannerConfigurer();
        mapperScannerConfigurer.setBasePackage("com.canteen.adminService.dao");
        Properties properties=new Properties();
        properties.setProperty("mappers","tk.mybatis.mapper.common.Mapper");
        mapperScannerConfigurer.setProperties(properties);
        return  mapperScannerConfigurer;
    }


}

三、配置mapper文件

package com.canteen.adminService.dao;
import com.canteen.common.pojo.User;
import org.apache.ibatis.annotations.Param;
import org.springframework.stereotype.Repository;
import tk.mybatis.mapper.common.Mapper;

@Repository
public interface UserMapper extends Mapper<User> {
    public Integer batchDel(@Param("userList") String[] userList);
}

4、应用启动项配置，注意MapperScan包是tk的

package com.canteen.adminService;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import tk.mybatis.spring.annotation.MapperScan;

@SpringBootApplication
@EnableEurekaClient
@MapperScan("com.canteen.adminService.dao")
public class adminServiceApp {
    public static void main(String[] args) {
        SpringApplication.run(adminServiceApp.class,args);
    }
}

现在就可以开始使用了