经典分页参数处理AOP

最新推荐文章于 2024-02-07 10:00:47 发布

寒江雪月

最新推荐文章于 2024-02-07 10:00:47 发布

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分类专栏： java学习之路文章标签： AOP 分页

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package com.alipay.dtcollectconsole.dtimage.aop;
/**
 * Shangshu
 * Copyright (c) 2017-2017 All Rights Reserved.
 */

import com.alipay.dtcollectconsole.common.dal.dtimage.domain.PageModel;
import com.alipay.dtcollectconsole.dtimagemodel.exception.DtimageException;
import com.alipay.dtcollectconsole.dtimagemodel.result.AjaxResult;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
/**
 * @author wb-wulonghai
 * @version 2017/3/20
 * 反屏蔽中心服务层切面，统一封装异常返回页面。
 * pageNumber、pageSize统一处理异常参数。
 */
@Aspect
public class DtimageExceptionAspect {

    @Pointcut("execution(com.alipay.dtcollectconsole.dtimagemodel.result.AjaxResult com.alipay.dtcollectconsole.dtimage.impl.*.*(..))")
    private void dtimagePointCut(){}
    @Pointcut("execution(com.alipay.dtcollectconsole.dtimagemodel.result.AjaxResult com.alipay.dtcollectconsole.anticrawler.impl.*.*(..))")
    private void anticrawlerPointCut(){}
    @Pointcut("dtimagePointCut() || anticrawlerPointCut()")
    private void pointCut(){}

    @Around(value = "pointCut()")
    public Object aroundRecordLog(ProceedingJoinPoint pjp) throws Throwable {
        AjaxResult ajaxResult = new AjaxResult();
        Object result;
        Object[] args = pjp.getArgs();
        if (args.length > 0 && args[0] instanceof PageModel) {
            //转换分页参数，处理异常数据
            PageModel arg = (PageModel) args[0];
            if (arg.getPageNumber() != null && arg.getPageSize() != null) {
                if (arg.getPageNumber() < 1) {
                    arg.setPageNumber(1);
                }
                arg.setPageNumber((arg.getPageNumber() - 1) * arg.getPageSize());
            }
        }
        try {
            result = pjp.proceed();
        } catch (DtimageException e) {
            ajaxResult.setSuccess(false);
            ajaxResult.setErrorMsg(e.getMessage());
            ajaxResult.setErrorCode(e.getDetailMsg() == null ? e.getCode() : e.getDetailMsg());
            return ajaxResult;
        } catch (Exception e) {
            ajaxResult.setSuccess(false);
            ajaxResult.setErrorMsg("服务器其他未知异常");
            ajaxResult.setErrorCode(e.getMessage());
            return ajaxResult;
        }
        return result;
    }
}