JAVA: How to Read JSON Format Data (Web Game Development)

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Here is a example code on how to read Json format datas for web game development.

 

How to Read JSON Format Data with JAVA

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/**
*
* @param result JSON string
* @param name JSON array name
* @param fields The fields contained in the JSON string
* @return Returns a list of type List<Map<String,Object>>, Map<String,Object> corresponding to the structure "id": "1"
*/
public static List<Map<String, Object>> convertJSON2List(String result,
String name, String[] fields) {
List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
try {
JSONArray array = new JSONObject(result).getJSONArray(name);
for (int i = 0; i < array.length(); i++) {
JSONObject object = (JSONObject) array.opt(i);
Map<String, Object> map = new HashMap<String, Object>();
for (String str : fields) {
map.put(str, object.get(str));
}
list.add(map);
}
} catch (JSONException e) {
Log.e("error", e.getMessage());
}
return list;
}
/** * * @param result JSON string * @param name JSON array name * @param fields The fields contained in the JSON string * @return Returns a list of type List<Map<String,Object>>, Map<String,Object> corresponding to the structure "id": "1" */ public static List<Map<String, Object>> convertJSON2List(String result, String name, String[] fields) { List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(); try { JSONArray array = new JSONObject(result).getJSONArray(name); for (int i = 0; i < array.length(); i++) { JSONObject object = (JSONObject) array.opt(i); Map<String, Object> map = new HashMap<String, Object>(); for (String str : fields) { map.put(str, object.get(str)); } list.add(map); } } catch (JSONException e) { Log.e("error", e.getMessage()); } return list; }
/** 
 *  
 * @param result JSON string 
 * @param name JSON array name 
 * @param fields The fields contained in the JSON string 
 * @return Returns a list of type List<Map<String,Object>>, Map<String,Object> corresponding to the structure "id": "1" 
 */  
public static List<Map<String, Object>> convertJSON2List(String result,  
        String name, String[] fields) {  
    List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();  
    try {  
        JSONArray array = new JSONObject(result).getJSONArray(name);  
 
        for (int i = 0; i < array.length(); i++) {  
            JSONObject object = (JSONObject) array.opt(i);  
            Map<String, Object> map = new HashMap<String, Object>();  
            for (String str : fields) {  
                map.put(str, object.get(str));  
            }  
            list.add(map);  
        }  
    } catch (JSONException e) {  
        Log.e("error", e.getMessage());  
    }  
    return list;  
}

 

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