记录一次使用 Comparator排序

    		if (ewbLimitList.size() > 0) {
			Collections.sort(ewbLimitList, new Comparator<EwbLimitVO>() {
				/**
				 * 返回负数表示：o1大于o2
				 * 返回 0 表示：o1和o2相等
				 * 返回正数表示：o1小于o2
				 * @param o1
				 * @param o2
				 * @return
				 */
				@Override
				public int compare(EwbLimitVO o1, EwbLimitVO o2) {
					if (o1.getSendTypeId() > o2.getSendTypeId()) {
						return -1;
					}
					if (o1.getSendTypeId().equals(o2.getSendTypeId())) {
						if (o1.getDispatchTypeId() > o2.getDispatchTypeId()) {
							return -1;
						}
					}
					return 1;
				}
			});
			if (ewbLimitList.get(0).getWeightMinimum() <= caclWeight && caclWeight <= ewbLimitList.get(0).getWeightMaximum()) {
				return null;
			}
			return ewbLimitList.get(0);