多过滤条件 条件不为空再进filter避免多filter

多过滤条件 条件不为空再进filter

因为要判断条件不为空再去filter过滤条件，导致多个filter的现象，优化后代码如下

 //各种过滤条件
        List<CpCategory> collect = cpCategoryList.stream().filter(cpCategory -> 
                filterData(cpCategory, accessWay, cpCategoryName, startDate, endDate)).collect(Collectors.toList()).;

    private boolean filterData(CpCategory cpCategory, String accessWay, String cpCategoryName, String startDate, String endDate) {
        boolean accessWayBln = true;
        boolean cpCategoryNameBln = true;
        boolean dateBln = true;
        if (StringUtils.isNotBlank(accessWay)) {
            accessWayBln = accessWay.equals(cpCategory.getAccessWay());
        }
        if (StringUtils.isNotBlank(cpCategoryName)) {
            cpCategoryNameBln = cpCategory.getCpCategoryName().contains(cpCategoryName);
        }
        if (StringUtils.isNotBlank(startDate) && StringUtils.isNotBlank(endDate)) {
            try {
                dateBln = simpleDateFormat.parse(cpCategory.getUpdateTime()).getTime() > simpleDateFormat.parse(startDate).getTime() &&
                        simpleDateFormat.parse(cpCategory.getUpdateTime()).getTime() < simpleDateFormat.parse(endDate).getTime();
            } catch (ParseException e) {
                e.printStackTrace();
            }
        }
        return accessWayBln && cpCategoryNameBln && dateBln;
        注意：返回一定要是&&关系 

仅供参考