android通过http请求获得json内容，androidjson,//JsonActivi

android通过http请求获得json内容，androidjson,//JsonActivi

//JsonActivity.javapackage com.v3;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.Reader;import java.net.URI;import java.util.ArrayList;import java.util.List;import java.util.StringTokenizer;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.HttpStatus;import org.apache.http.client.HttpClient;import org.apache.http.client.methods.HttpGet;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.params.CoreProtocolPNames;import org.json.JSONArray;import org.json.JSONObject;import org.json.JSONStringer;import android.app.Activity;import android.os.Bundle;import android.os.Message;import android.util.Log;import android.view.View;import android.widget.Button;import android.widget.TextView;public class JsonActivity extends Activity {Button button,buttonClear;TextView textView;String page;String str="";String url = "http://192.168.1.118/androidjsontest/index.php";/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);button = (Button) findViewById(R.id.btnFetch);buttonClear = (Button) findViewById(R.id.btnClear);textView = (TextView) findViewById(R.id.txtView);button.setOnClickListener(new Button.OnClickListener(){public void onClick(View v){examineJSONFile();}});buttonClear.setOnClickListener(new Button.OnClickListener(){public void onClick(View v){textView.setText("");}});}public String executeHttpGet(String URL) throws Exception{//This method for HttpConnectionBufferedReader bufferedReader = null;try{HttpClient client = new DefaultHttpClient();client.getParams().setParameter(CoreProtocolPNames.USER_AGENT, "android");HttpGet request = new HttpGet();request.setHeader("Content-Type", "text/plain; charset=utf-8");request.setURI(new URI(URL));HttpResponse response = client.execute(request);bufferedReader = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));StringBuffer stringBuffer = new StringBuffer("");String line = "";String NL = System.getProperty("line.separator");while ((line = bufferedReader.readLine()) != null){stringBuffer.append(line + NL);System.out.print(stringBuffer);}bufferedReader.close();page = stringBuffer.toString();System.out.println(page+"page");return page;}finally{if (bufferedReader != null){try{bufferedReader.close();}catch (IOException e){Log.d("BBB", e.toString());}}}}void examineJSONFile(){try{String Value="" ;String str = "";page = executeHttpGet(url);Log.i("hello", str.toString());JSONObject object=new JSONObject(page);str=str+object.names().toString();String sub1=str.substring(2, str.length()-2);String[] names=sub1.split("\",\"");for (int i=0;i<names.length;i++) {Value=Value+names[i] +":"+object.get(names[i])+"\n";System.out.println(names[i]);}/* String sub=str.substring(1, str.length()-1);  String[] names=sub.split(",");  String[] keyValue=new String[names.length];  for (int i=0;i<names.length;i++) {  names[i]=names[i].replace("\"","");  Value=Value+names[i] +":"+object.get(names[i])+"\n";  //keyValue[i]=names[i] +":"+object.get(names[i])+"\n";System.out.println(names[i]);}*/textView.setText(Value);/*for(int i=0;i<keyValue.length;i++){  textView.setText(keyValue[i]);  }*/Log.i("hello", str.toString());}catch (Exception je){textView.setText("Error w/file: " + je.getMessage());}}}