Map集合冒泡排序

public static void main(String[] args) {
	// 测试数据
	List<Map<String,Object>> mblbTotals = new ArrayList<>();
	Map<String,Object> map1 = new HashMap<>();
	map1.put("MBLBDM","001");
	map1.put("MBLBMC","测试1");
	map1.put("NUM", "10");
	mblbTotals.add(map1);
	
	Map<String,Object> map2 = new HashMap<>();
	map2.put("MBLBDM","002");
	map2.put("MBLBMC","测试2");
	map2.put("NUM", "35");
	mblbTotals.add(map2);
	
	Map<String,Object> map3 = new HashMap<>();
	map3.put("MBLBDM","003");
	map3.put("MBLBMC","测试3");
	map3.put("NUM", "15");
	mblbTotals.add(map3);

	// 将数据按大到小排序
	for (int i=0;i<mblbTotals.size()-1;i++){
	    for (int j = 0;j<mblbTotals.size()-i-1;j++){
	        Map<String,Object> bjMap1 = mblbTotals.get(j);
	        Map<String,Object> bjMap2 = mblbTotals.get(j+1);
	        if (Integer.parseInt(bjMap1.get("NUM")) < Integer.parseInt(bjMap2.get("NUM"))){
	            Collections.swap(mblbTotals,j, j+1);
	        }
	    }
	}

	// 输出结果
	for (Map<String,Object> map:mblbTotals){
		System.out.println(map.get(NUM));
	}
}

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关于Collections类的解释可以参考以下链接：
https://blog.youkuaiyun.com/TYRA9/article/details/129906494