單條件排序

@SuppressWarnings("unchecked")
    public static void sort(List<JSONObject> list,
                            final String key,
                            final String orderby,
                            final boolean isnumber) {
        Collections.sort(list, new Comparator() {
            @Override
            public int compare(Object a, Object b) {
                int ret = 0;
                try {
                    if (OrderByEnum.DESC.name().equalsIgnoreCase(orderby)) {
                        // 倒序
                        if (isnumber) {
                            ret = Double.valueOf(((JSONObject) b).getString(key))
                                    .compareTo(Double.valueOf(((JSONObject) a).getString(key)));
                        }
                        else{
                            ret = ((JSONObject)b).getString(key)
                                    .compareTo(((JSONObject)a).getString(key));
                        }
                    }else {
                        // 正序
                        if (isnumber) {
                            ret = Double.valueOf(((JSONObject) a).getString(key))
                                    .compareTo(Double.valueOf(((JSONObject) b).getString(key)));

                        }else {
                            ret = ((JSONObject) a).getString(key)
                                    .compareTo(((JSONObject) b).getString(key));
                        }
                    }
                } catch (Exception e) {
                    log.error("Sort error: ", e);
                    e.printStackTrace();
                }
                return ret;
            }
        });
    }
 

多條件排序

Collections.sort(staffList, new Comparator<StaffElement>() {
			public int compare(StaffElement arg0, StaffElement arg1) {
				// 置業管家按成交套數降序排序
				if (arg1.getMonthCjNumber() > arg0.getMonthCjNumber()) {
					return 1;
				} else if (arg0.getMonthCjNumber() > arg1.getMonthCjNumber()) {
					return -1;
				} else if (arg0.getMonthCjNumber() == arg1.getMonthCjNumber()) {
					// 如果成交套數相等的話就按照響應速度升序
					if (arg0.getAnswerRate() > arg1.getAnswerRate()) {
						//如果響應速度等於0就拍最後面
						if(arg1.getAnswerRate()==0){
							return -1;
						}
						return 1;
					} else if (arg1.getAnswerRate() > arg0.getAnswerRate()) {
						//如果響應速度等於0就拍最後面
						if(arg0.getAnswerRate()==0){
							return 1;
						}
						return -1;
					}
				}
				return 0;
			}
		});