方法

public static List parseJson(String str,JSONObject json,List list){
        Iterator<String> iterator =  json.keys();
        while(iterator.hasNext()){
            String key = iterator.next();
            String value = json.getString(key);
            JSONObject child = null;
            try {
                child = JSONObject.fromObject(value);
                parseJson(str + "_" + key,child,list);
            } catch (Exception e) {
                list.add(str + "_" + key);
            }
        }
        return list;
    }

调用

String str = "你的json";
JSONObject json = JSONObject.fromObject(str);
        List list = new ArrayList();
        parseJson("data",json,list);
        for(int i=0;i<list.size();i++){
            System.out.println(list.get(i));
        }

1.这样传参有点另类，直接传递json字符串参数过去解析
2.拼接的话只能一边解析，一边拼接参数

            String url = "xxx.com";
            String json = "{\n" +
                    "    \"brand\": \"server\",\n" +
                    "    \"category\": \"server\",\n" +
                    "    \"iP\": \"127.0.0.1\",\n" +
                    "    \"isSave\": \"true\",\n" +
                    "    \"isSaveRelation\": \"false\",\n" +
                    "    \"localPort\": \"\",\n" +
                    "    \"name\": \"test-app\",\n" +
                    "    \"portID\": \"\",\n" +
                    "    \"relations\": {},\n" +
                    "    \"type\": \"server\",\n" +
                    "    \"unresolvedData\": {\n" +
                    "        \"macAddress\": \"1234567\",\n" +
                    "        \"system\": {\n" +
                    "            \"systemBit\": \"123\",\n" +
                    "            \"systemType\": \"123\",\n" +
                    "            \"UUID\": \"\",\n" +
                    "            \"version\": \"123\"\n" +
                    "        },\n" +
                    "        \"ip\": \"127.0.0.1\",\n" +
                    "        \"hardDisk\": {\n" +
                    "            \"totalSize\": \"1GB\",\n" +
                    "            \"usedSize\": \"1GB\",\n" +
                    "            \"useableSize\": \"1GB\"\n" +
                    "        },\n" +
                    "        \"cpu\": {\n" +
                    "            \"model\": \"qwertyp\",\n" +
                    "            \"threadNum\": \"421\",\n" +
                    "            \"cpuNum\": \"22\",\n" +
                    "            \"totalCoreNum\": \"412\",\n" +
                    "            \"coreNum\": \"22\"\n" +
                    "        },\n" +
                    "        \"subType\": \"test\",\n" +
                    "        \"RAM\": {\n" +
                    "            \"totalSlot\": \"\",\n" +
                    "            \"maxCapacity\": \"1GB\",\n" +
                    "            \"maximumCapacity\": \"\"\n" +
                    "        }\n" +
                    "    }\n" +
                    "}";
            JSONObject jsonObject = JSON.parseObject(json);
            url += "?data_brand=" + jsonObject.get("brand").toString();
            url += "&data_category=" + jsonObject.get("category").toString();
            JSONObject jsonObject2 = JSON.parseObject(jsonObject.get("unresolvedData").toString());
            url += "&data_unresolvedData_macAddress=" + jsonObject2.get("macAddress").toString();