标签:jsonObj 读取 get JSONArray JSONObject json keyMap key
读取json的key:
/** * @Description: 递归读取所有的key * @Param: * @return: * @throws Exception * @author: hw * @date: 2019/7/31 15:18 */ public static Set<String> getAllKey(JSONObject jsonObject) { Set<String> myset = new HashSet<>(); Iterator<String> keys = jsonObject.keySet().iterator();// jsonObject.keys(); while (keys.hasNext()) { String key = keys.next(); myset.add(key.toString()); if (jsonObject.get(key) instanceof JSONObject) { JSONObject innerObject = (JSONObject) jsonObject.get(key); myset.addAll(getAllKey(innerObject)); } else if (jsonObject.get(key) instanceof JSONArray) { JSONArray innerObject = (JSONArray) jsonObject.get(key); myset.addAll(getAllKey(innerObject)); } } return myset; } public static Set<String> getAllKey(JSONArray json1) { Set<String> myset = new HashSet<>(); if (json1 != null ) { Iterator i1 = json1.iterator(); while (i1.hasNext()) { Object key = i1.next(); if (key instanceof JSONObject) { JSONObject innerObject = (JSONObject) key; myset.addAll(getAllKey(innerObject)); } else if (key instanceof JSONArray) { JSONArray innerObject = (JSONArray) key; myset.addAll(getAllKey(innerObject)); } } } return myset; }
替换json的key:
/** * @Description: 替换json数据的key * @Param: * @return: * @throws Exception * @author: hw * @date: 2019/7/31 16:22 */ public static JSONObject changeJsonObj(JSONObject jsonObj,Map<String, String> keyMap) { JSONObject resJson = new JSONObject(); Set<String> keySet = jsonObj.keySet(); for (String key : keySet) { String resKey = keyMap.get(key) == null ? key : keyMap.get(key); try { if (jsonObj.get(key) instanceof JSONObject) { JSONObject jsonobj1 = (JSONObject) jsonObj.get(key); resJson.put(resKey, changeJsonObj(jsonobj1, keyMap)); } else if (jsonObj.get(key) instanceof JSONArray) { JSONArray jsonArr = (JSONArray) jsonObj.get(key); resJson.put(resKey, changeJsonArr(jsonArr, keyMap)); }else { resJson.put(resKey, jsonObj.get(key)); } } catch (Exception e) { e.printStackTrace(); } } return resJson; } public static JSONArray changeJsonArr(JSONArray jsonArr,Map<String, String> keyMap) { JSONArray resJson = new JSONArray(); for (int i = 0; i < jsonArr.size(); i++) { JSONObject jsonObj = jsonArr.getJSONObject(i); resJson.add(changeJsonObj(jsonObj, keyMap)); } return resJson; }
测试方法:
public static void main(String[] args) { String test = "{\n" + "\t\"ret\": \"0\",\n" + "\t\"retMsg\": null,\n" + "\t\"count\": 1,\n" + "\t\"processCost\": null,\n" + "\t\"data\": [{\n" + "\t\t\t\"moniid\": \"11\",\n" + "\t\t\t\"serialnumber\": \"12\",\n" + "\t\t\t\"monitype\": \"13\"\n" + "\t\t},\n" + "\t\t{\n" + "\t\t\t\"moniid\": \"22\",\n" + "\t\t\t\"serialnumber\": \"22\",\n" + "\t\t\t\"monitype\": \"23\"\n" + "\t\t},\n" + "\t\t{\n" + "\t\t\t\"moniid\": \"33\",\n" + "\t\t\t\"serialnumber\": \"32\",\n" + "\t\t\t\"monitype\": \"33\"\n" + "\t\t}\n" + "\t]\n" + "}"; Map<String, String> keyMap = new HashMap<String, String>(); keyMap.put("count", "param1"); keyMap.put("processCost", "param2"); keyMap.put("desc", "param3"); keyMap.put("moniid", "param4"); keyMap.put("serialnumber", "param5"); keyMap.put("monitype", "param6"); keyMap.put("data", "param7"); JSONObject jsonObj = changeJsonObj(JSONObject.parseObject(test),keyMap); System.out.println(jsonObj.toString()); }
标签:jsonObj,读取,get,JSONArray,JSONObject,json,keyMap,key 来源: https://www.cnblogs.com/weihuang6620/p/11308832.html
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