本文实例讲述了Android编程解析Json格式数据的方法。分享给大家供大家参考,具体如下:
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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();
}
}
}
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希望本文所述对大家Android程序设计有所帮助。