Mybatis

MybatisPlusConfig

①包扫描MapperScan

②指定数据库

@MapperScan(basePackages = "com.zhan_py.ssyx.*.mapper")
@Configuration
public class MybatisPlusConfig {/*** 添加分页插件*/@Beanpublic MybatisPlusInterceptor mybatisPlusInterceptor() {MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));return interceptor;}
}

逻辑删除

实体类上加@TableLogic

controller

①@RequestBody接收json数据封装成对象

②@ResponseBody将对象作为json格式响应

③前端json数组后端接收的格式是list集合，例如@RequestBody List<Long> ids