网站只收录无权重,腾讯企点网页版,上海野猪seo,义乌外贸建网站需求描述#xff1a; 需要对mapper查询的入参的某个属性值进行特殊处理后查询 不影响原来业务且方便扩展维护
1#xff0c;自定义注解 import java.lang.annotation.*;/*** 针对 mapper层入参 按照一定规则进行特殊处理重新赋值*/
Target(ElementType.METHOD)
Retention(Ret…需求描述 需要对mapper查询的入参的某个属性值进行特殊处理后查询 不影响原来业务且方便扩展维护
1自定义注解 import java.lang.annotation.*;/*** 针对 mapper层入参 按照一定规则进行特殊处理重新赋值*/
Target(ElementType.METHOD)
Retention(RetentionPolicy.RUNTIME)
Documented
Inherited
public interface MapperRequestData {/*** 指定执行规则的方法默认方法为transferRequestData* return*/String method() default transferRequestData;Class? extends MapperRequestDataInterface operation();
}
2定义动态处理指定业务的接口 /*** 不同的业务场景 其 针对入参 解析处理规则不同须根据自身情况实现该接口* param T*/
public interface MapperRequestDataInterface {void transferRequestData(Object request);}
3定义切面 MapperRequestDataAspect import com.taia.yms.aop.reponse.inter.MapperRequestDataInterface;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import java.lang.reflect.Method;/*** 针对 mapper层入参进行特殊处理*/
Component
Aspect
public class MapperRequestDataAspect {private static final Logger log LoggerFactory.getLogger(MapperRequestDataAspect.class);//定义pointcut签名Pointcut(execution(* com.taia.yms.mapper.*.*(..)) annotation(com.taia.yms.aop.reponse.MapperRequestData))private void pointCut() {//方法为空仅做签名}//对切点方法进行前置增强就是在调用切点方法前进行做一些必要的操作这就成为增强Before(pointCut())public void getRes(JoinPoint joinPoint){// 获取方法签名Signature signature joinPoint.getSignature();MethodSignature methodSignature (MethodSignature) signature;Method method methodSignature.getMethod();MapperRequestData annotation method.getAnnotation(MapperRequestData.class);Object[] objects joinPoint.getArgs();// 查找并获取注解try{// 读取注解的属性Class? extends MapperRequestDataInterface operation annotation.operation();MapperRequestDataInterface operationInstance operation.getDeclaredConstructor().newInstance();String methoded annotation.method();Method operationMethod operation.getDeclaredMethod(methoded, Object.class);operationMethod.invoke(operationInstance, objects);}catch (Exception e){log.error(类[{}]的方法[{}]执行失败报错:{},annotation.operation().getName(),annotation.method(),e.getMessage());}}}
4定义指定业务指定入参处理逻辑 import com.taia.yms.aop.reponse.inter.MapperRequestDataInterface;
import com.taia.yms.entity.reqbody.TechnologyPageReqBody;
import org.springframework.util.CollectionUtils;
import java.util.List;
import java.util.stream.Collectors;public class TechnologySelectConfigListReqRule implements MapperRequestDataInterface {private static final String PREFIX_SRE CONTAINS_;Overridepublic void transferRequestData(Object request) {TechnologyPageReqBody pageReqBody (TechnologyPageReqBody) request;if(pageReqBody null || CollectionUtils.isEmpty(pageReqBody.getDataTypeList())){return;}ListString list pageReqBody.getDataTypeList();ListString collect list.stream().map(v - PREFIX_SRE v).collect(Collectors.toList());pageReqBody.setDataTypeList(collect);}
}
5相关对象类 import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.experimental.Accessors;
import com.taia.yms.entity.ExportPageReqBody;
import java.util.List;Data
AllArgsConstructor
NoArgsConstructor
Accessors(chain true)
public class TechnologyPageReqBody extends ExportPageReqBody{private Long id;private String fab;private String productId;private String technology;private ListString dataTypeList;private String createdByName;private String lastUpdatedByName;// ALL、为空、不为空 all isNull isNotNullprivate String isNullable;
} import io.swagger.annotations.ApiModelProperty;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.experimental.Accessors;
import java.util.List;/*** ClassName ExportPageReqBody* 导出 和 分页数据**/
Data
AllArgsConstructor
NoArgsConstructor
Accessors(chain true)
public class ExportPageReqBody {/**页码*/ApiModelProperty(example 1)private Integer pageNum 1;/**页面大小*/ApiModelProperty(example 10)private Integer pageSize 10;/**1-导出excel 0-导出CSV*/private String isExcel;/**1-只导出表头0或空-导出表头和数据*/private String isEmpty;/**1-配置数据 0或空-待添加配置数据*/private String isConfig;/**选择导出有值时只导出选中的id*/private ListLong selectedIds;/**当前登录用户的userId*/private String userNo;
}
6在对应mapper层的对应方法加添加使用 /*** 查询已配置数据(支持字段模糊查询)*/MapperRequestData(operation TechnologySelectConfigListReqRule.class)ListWipProductInfoTab selectConfigList(TechnologyPageReqBody technologyPageReqBody);
