将JsonObject转换成HashMap

Posted 西西弗斯丶

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1.工具类:

Utils.class:

(1)简单的键值对map

public class Utils 

	public static String getRaw(Context context, int RawId) 

		try 
			InputStream is = context.getResources().openRawResource(RawId);
			BufferedReader reader = new BufferedReader(
					new InputStreamReader(is));
			// StringBuffer线程安全;StringBuilder线程不安全
			StringBuffer sb = new StringBuffer();
			for (String str = null; (str = reader.readLine()) != null;) 
				sb.append(str);
			
			return sb.toString();

		 catch (IOException e) 
			e.printStackTrace();
		
		return null;
	

	public static String getAsset(Context context, String fileName) 

		try 
			InputStream is = context.getResources().getAssets().open(fileName);
			// StringBuffer线程安全;StringBuilder线程不安全
			BufferedReader reader = new BufferedReader(
					new InputStreamReader(is));
			StringBuffer sb = new StringBuffer();
			for (String str = null; (str = reader.readLine()) != null;)  
				sb.append(str);
			
			return sb.toString();

		 catch (IOException e) 
			e.printStackTrace();
		

		return null;
	

	public static void JsonObject2HashMap(JSONObject jo, List<Map<?, ?>> rstList) 
		for (Iterator<String> keys = jo.keys(); keys.hasNext();) 
			try 
				String key1 = keys.next();
				System.out.println("key1---" + key1 + "------" + jo.get(key1)
						+ (jo.get(key1) instanceof JSONObject) + jo.get(key1)
						+ (jo.get(key1) instanceof JSONArray));
				if (jo.get(key1) instanceof JSONObject) 

					JsonObject2HashMap((JSONObject) jo.get(key1), rstList);
					continue;
				
				if (jo.get(key1) instanceof JSONArray) 
					JsonArray2HashMap((JSONArray) jo.get(key1), rstList);
					continue;
				
				System.out.println("key1:" + key1 + "----------jo.get(key1):"
						+ jo.get(key1));
				json2HashMap(key1, jo.get(key1), rstList);

			 catch (JSONException e) 
				e.printStackTrace();
			

		

	
	public static void JsonArray2HashMap(JSONArray joArr,
			List<Map<?, ?>> rstList) 
		for (int i = 0; i < joArr.length(); i++) 
			try 
				if (joArr.get(i) instanceof JSONObject) 

					JsonObject2HashMap((JSONObject) joArr.get(i), rstList);
					continue;
				
				if (joArr.get(i) instanceof JSONArray) 

					JsonArray2HashMap((JSONArray) joArr.get(i), rstList);
					continue;
				
				System.out.println("Excepton~~~~~");

			 catch (JSONException e) 
				e.printStackTrace();
			

		

	

	public static void json2HashMap(String key, Object value,
			List<Map<?, ?>> rstList) 
		HashMap<String, Object> map = new HashMap<String, Object>();
		map.put(key, value);
		rstList.add(map);
	



(2)完全Map深层嵌套模式形式:

/**
	 * @param jsonData
	 * @param rstList
	 * @param params
	 * @func hashmap追加字段
	 */
	public static void JsonToHashMap(JSONObject jsonData, Map<String, Object> rstList,
			String... params) 
		try 
			for (Iterator<String> keyStr = jsonData.keys(); keyStr.hasNext();) 

				String key1 = keyStr.next().trim();
				if (jsonData.get(key1) instanceof JSONObject) 
					HashMap<String, Object> mapObj = new HashMap<String, Object>();
					JsonToHashMap((JSONObject) jsonData.get(key1), mapObj, params);
					rstList.put(key1, mapObj);
					continue;
				
				if (jsonData.get(key1) instanceof JSONArray) 
					ArrayList<Map<String, Object>> arrayList = new ArrayList<Map<String, Object>>();

					JsonToHashMap((JSONArray) jsonData.get(key1), arrayList, params);
					rstList.put(key1, arrayList);
					continue;
				
				JsonToHashMap(key1, jsonData.get(key1), rstList);
			
			// 追加字段
			if (params != null && params.length == 2) 
				rstList.put(params[0], params[1]);
			
			if (params != null && params.length == 4) 
				rstList.put(params[0], params[1]);
				rstList.put(params[2], params[3]);
			

		 catch (JSONException e) 
			e.printStackTrace();
		

	

	public static void JsonToHashMap(JSONArray jsonarray, List<Map<String, Object>> rstList,
			String... params) 
		try 
			for (int i = 0; i < jsonarray.length(); i++) 
				if (jsonarray.get(i) instanceof JSONObject) 

					HashMap<String, Object> mapObj = new HashMap<String, Object>();
					JsonToHashMap((JSONObject) jsonarray.get(i), mapObj, params);
					rstList.add(mapObj);
					continue;
				
			

		 catch (JSONException e) 
			e.printStackTrace();
		

	

	public static void JsonToHashMap(String key, Object value, Map<String, Object> rstList) 
		key = BBSUtils.replaceBlank(key);
		if (value instanceof String) 
			rstList.put(key, BBSUtils.replaceBlank((String) value));
			return;
		
		rstList.put(key, value);
	


	public static String getRaw(Context context, int RawId) 

		try 
			InputStream is = context.getResources().openRawResource(RawId);
			BufferedReader reader = new BufferedReader(
					new InputStreamReader(is));
			// StringBuffer线程安全;StringBuilder线程不安全
			StringBuffer sb = new StringBuffer();
			for (String str = null; (str = reader.readLine()) != null;) 
				sb.append(str);
			
			return sb.toString();

		 catch (IOException e) 
			e.printStackTrace();
		
		return null;
	

	public static String getAsset(Context context, String fileName) 

		try 
			InputStream is = context.getResources().getAssets().open(fileName);
			// StringBuffer线程安全;StringBuilder线程不安全
			BufferedReader reader = new BufferedReader(
					new InputStreamReader(is));
			StringBuffer sb = new StringBuffer();
			for (String str = reader.readLine(); str != null;) 
				sb.append(str);
			
			return sb.toString();

		 catch (IOException e) 
			e.printStackTrace();
		

		return null;
	
	

备注:

JsonObject里面有两种情况:(1)JsonObject (2)JsonArray 

JsonArray  后面有三种情况:(1)JsonObject (2)JsonArray (3)Object

====================================================

2.调用类:

		String jsonStr = Utils.getRaw(mContext, R.raw.file1);
		String temp = "\\"\\":[\\"aa\\":\\"1\\",\\"bb\\":\\"2\\",\\"aa\\":\\"3\\",\\"bb\\":\\"4\\",\\"aa\\":\\"5\\",\\"bb\\":\\"6\\"]";
		System.out.println("---------jsonStr" + jsonStr);
		ArrayList<Map<?, ?>> rstList = new ArrayList<Map<?, ?>>();

		try 

			Utils.JsonObject2HashMap(new JSONObject(jsonStr), rstList);
			Utils.JsonObject2HashMap(new JSONObject(temp), rstList);
			System.out.println("---------rstList" + rstList);

		 catch (JSONException e) 
			e.printStackTrace();
		

3.Raw文件夹下文本文件file1:


  "programmers": [
   
      "firstName": "Brett", 
      "lastName": "McLaughlin"
    , 
   
      "firstName": "Jason", 
      "lastName": "Hunter"
   
  ], 
  "authors": [
   
      "firstName": "Isaac", 
      "lastName": "Asimov"
    , 
   
      "firstName": "Tad", 
      "lastName": "Williams"
   
  ]


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