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android json 解析 简单示例

2013-07-15 21:15 246 查看
1 下面是一个简单的json 解析的demo,废话不多说,直接上代码

package com.sky.gallery;

import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.SocketTimeoutException;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.json.JSONArray;
import org.json.JSONObject;

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

public class ctivity extends Activity {
//音乐

private static String GAME_URL = "http://api.k.sohu.com/api/photos/list.go?rt=json&categoryId=2&pageSize=4&p1=NTc1MzY0OTc2NzAxNjA0MjUyMw%3D%3D";

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_activity);

startGetGameListThread();

}

public void startGetGameListThread() {

new Thread() {

@Override
public void run() {
String jsonStr = null;
int errorCode = 0;

try { // 读取数据 j
jsonStr = getGameJsonStr(GAME_URL);
Log.i("test", "jsonStr = " + jsonStr);
//parseAppList(jsonStr);

} catch (Exception e) {
e.printStackTrace();
errorCode = 1;
} finally {

}

}

}.start();
}

private static String getGameJsonStr(String url) throws Exception {
Log.i("test", "getGameJsonStr(). url = " + url);

String jsonStr = null;

final HttpParams httpParameters = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParameters, 6000);
HttpConnectionParams.setSoTimeout(httpParameters, 6000);

final DefaultHttpClient client = new DefaultHttpClient(httpParameters);

final HttpGet get = new HttpGet(url);
HttpResponse resp;

resp = client.execute(get);
final HttpEntity entity = resp.getEntity();
final InputStream is = entity.getContent();
jsonStr = readToEnd(is);
is.close();

return jsonStr;
}

private static String readToEnd(InputStream input) throws IOException,
SocketTimeoutException {
final DataInputStream dis = new DataInputStream(input);
final byte[] stuff = new byte[1024];
final ByteArrayOutputStream buff = new ByteArrayOutputStream();
int read = 0;
while ((read = dis.read(stuff)) != -1) {
buff.write(stuff, 0, read);
}

return new String(buff.toByteArray());
}

private static void log(String msg) {
Log.v("test", msg);
}
private void parseAppList(String jsonStr) throws Exception {
Log.v("test", "sssssssssssssssssssssssssssssssss");
try {
/*
* final JSONObject root = new JSONObject(jsonStr); Log.i("test",
* "root = " + root);
*/
JSONObject oo = new JSONObject(jsonStr);
JSONArray array = oo.getJSONArray("videos");
//final JSONArray array = new JSONArray(jsonStr);
for (int i = 0; i < 20; ++i) {
//JSONObject obj = array.getJSONObject(i);

AppModle one = addOneGameModel(array.getJSONObject(i));
Log.i("test", "每一个对象的 "+i+" "+one.getTitle());
Log.i("test", "每一个对象的 "+i+" "+one.getId());
Log.i("test", "每一个对象的 "+i+" "+one.getArtistName());

}

} catch (Exception e) {
e.printStackTrace();
}
}

private static AppModle addOneGameModel(JSONObject game) throws Exception {
AppModle one = new AppModle();
/*
one.setId(game.getInt("id"));
one.setTitle(game.getString("title"));
one.setArtistName(game.getString("artistName"));*/
return one;
}

}
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