android请求json数据,在android中请求JSON数据

布满荆棘的人生 2022-10-18 01:46 223阅读 0赞

//JsonActivity.java

package cn.outofmemory.android;

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. \*/

@Override

public 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 HttpConnection

BufferedReader 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

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\[i\]=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

textView.setText(keyValue\[i\]);

\}\*/

Log.i("hello", str.toString());

catch (Exception je)

textView.setText("Error w/file: " + je.getMessage());

android请求json数据,在android中请求JSON数据

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