org.json使用

Android Developer 文档
https://developer.android.com/reference/org/json/package-summary.html

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JSONObject

常用的JSON数据类型
A modifiable set of name/value mappings.
Names are unique, non-null strings.
Values may be any mix of JSONObjects, JSONArrays, Strings, Booleans, Integers, Longs, Doubles or NULL.

插入数据 : put

JSONObject put (String name, 
                double value)

Maps name to value, clobbering any existing name/value mapping with the same name.

JSONObject studentJSONObject = new JSONObject(); 
studentJSONObject.put("name", "Jason");  
studentJSONObject.put("id", 20130001);  
studentJSONObject.put("phone", "13579246810");  

获取数据 : getString

org.json中有很多种get方法，如 get 、getBoolean 、getDouble 、getInt 、getJSONArray 、getJSONObject 、getLong
Returns the value mapped by name if it exists.
会进行强制类型转换

studentJSONObject = (JSONObject) args[0];  
name = studentJSONObject.getString("name");  
id = studentJSONObject.getInt("id");  
phone = studentJSONObject.getString("phone");