JAVA 去重

最新推荐文章于 2025-03-31 19:29:00 发布

little-bee

最新推荐文章于 2025-03-31 19:29:00 发布

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分类专栏： JAVA

本文链接：https://blog.youkuaiyun.com/carl32hao/article/details/51016553

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 public static void main(String[] args) {
        List<Map<String, String>> allClientInfoList = new ArrayList<Map<String,String>>();
        Map<String, String> map1 = new HashMap<String, String>();
        map1.put("clientName", "测试");
        map1.put("certificateNo", "1111");
        map1.put("certificateType", "01");
        map1.put("personnelFlag", "1");
        Map<String, String> map2 = new HashMap<String, String>();
        map2.put("clientName", "bb");
        map2.put("certificateNo", "2222");
        map2.put("certificateType", "01");
        map2.put("personnelFlag", "1");
        Map<String, String> map3 = new HashMap<String, String>();
        map3.put("clientName", "测试");
            map3.put("certificateNo", "1111");
        map3.put("certificateType", "01");
        map3.put("personnelFlag", "1");
        
        allClientInfoList.add(map1);
        allClientInfoList.add(map2);
        allClientInfoList.add(map3);
        System.out.println("before:" + JsonUtils.toJSONString(allClientInfoList));
        Set<Map<String,String>> set = new HashSet<Map<String,String>>();
        for (Map<String,String> map : allClientInfoList) {
            set.add(map);
        }
        System.out.println("set :" + JsonUtils.toJSONString(set));
        System.out.println("after:" + JsonUtils.toJSONString(allClientInfoList));
    }