android中解析Json

这本就是java中常用的方法，例子如下，抄自：http://www.oschina.net/code/snippet_176897_7317

 

package com.practice.json;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;

public class JsonDemo extends Activity {
    /*
     * 解析JSON的例子，str保存的是JSON代码，解析后的数据在LogCat里输出 
    */
    
    String TAG = "Json message";
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        detectJSON();
    }
    
    private void detectJSON() {
        String str = "{"+
        
          "\"日期\" : \"2011-06-06\","+

          //Like 是 JSONObject
          "\"Like\" : {"+
            "\"Name\" : \"加内特\","+
            "\"Height\" : \"2.11cm\","+ 
            "\"Age\" : 35"+
          "},"+
        
          //LikeList 就是一个 JSONObject
          "\"LikeList\":" +
              "{\"List\": " +
              "["+
                    //这里也是JSONObject
                  "{"+
                    "\"Name\" : \"Rose\","+
                    "\"Height\" : \"190cm\","+ 
                    "\"Age\" : 23"+
                  "},"+
                  //这里也是JSONObject
                  "{"+
                    "\"Name\" : \"科比\","+
                    "\"Height\" : \"198cm\","+ 
                    "\"Age\" : 33"+
                  "}"+
              "]"+
              "}"+
          "}";
        
        try {
            JSONObject dataJson = new JSONObject(str);
            Log.d(TAG, dataJson.getString("日期"));
            
            JSONObject nbaJson = dataJson.getJSONObject("Like");
        
            Log.d(TAG, nbaJson.getString("Name"));
            Log.d(TAG, nbaJson.getString("Height"));
            Log.d(TAG, nbaJson.get("Age").toString());
            
            JSONObject listJson = dataJson.getJSONObject("LikeList");
            JSONArray arrayJson = listJson.getJSONArray("List");
            
            for(int i=0;i<arrayJson.length();i++) {
                
                JSONObject tempJson = arrayJson.optJSONObject(i);
                
                Log.d(TAG, tempJson.getString("Name"));
                Log.d(TAG, tempJson.getString("Height"));
                Log.d(TAG, tempJson.getString("Age").toString());    
            }
            
            
        } catch (JSONException e) {
            System.out.println("Something wrong...");
            e.printStackTrace();
        }
    }
}