个人记录：关于java排序

Collections.sort(vos, new Comparator<GbsExtendedVO>() {
			public int compare(GbsExtendedVO arg0,
					GbsExtendedVO arg1) {
				String deptTypeSort0=arg0.getDeptTypeSort();
				String deptTypeSort1=arg1.getDeptTypeSort();
				int deptTypeSort = objCompare(deptTypeSort0,
						deptTypeSort1);
				return deptTypeSort;
			}

			private int objCompare(Object arg0, Object arg1) {
				if (arg0 == null && arg1 == null) {
					return 0;
				} else if (arg0 == null && arg1 != null) {
					return 1;
				} else if (arg0 != null && arg1 == null) {
					return -1;
				}
				return arg0.toString().compareTo(arg1.toString());
			}

		});