[代码] JsonActivity.java
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//JsonActivity.java
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package com.v3;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.Reader;
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import java.net.URI;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.StringTokenizer;
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import org.apache.http.HttpEntity;
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import org.apache.http.HttpResponse;
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import org.apache.http.HttpStatus;
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import org.apache.http.client.HttpClient;
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import org.apache.http.client.methods.HttpGet;
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import org.apache.http.impl.client.DefaultHttpClient;
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import org.apache.http.params.CoreProtocolPNames;
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import org.json.JSONArray;
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import org.json.JSONObject;
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import org.json.JSONStringer;
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import android.app.Activity;
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import android.os.Bundle;
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import android.os.Message;
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import android.util.Log;
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import android.view.View;
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import android.widget.Button;
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import android.widget.TextView;
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public class JsonActivity extends Activity {
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Button button,buttonClear;
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TextView textView;
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String page;
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String str="";
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String url = "http://192.168.1.118/androidjsontest/index.php";
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/** Called when the activity is first created. */
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.main);
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button = (Button) findViewById(R.id.btnFetch);
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buttonClear = (Button) findViewById(R.id.btnClear);
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textView = (TextView) findViewById(R.id.txtView);
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button.setOnClickListener(new Button.OnClickListener()
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{
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public void onClick(View v)
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{
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examineJSONFile();
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}
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});
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buttonClear.setOnClickListener(new Button.OnClickListener()
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{
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public void onClick(View v)
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{
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textView.setText("");
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}
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});
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}
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public String executeHttpGet(String URL) throws Exception
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{
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//This method for HttpConnection
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BufferedReader bufferedReader = null;
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try
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{
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HttpClient client = new DefaultHttpClient();
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client.getParams().setParameter(CoreProtocolPNames.USER_AGENT, "android");
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HttpGet request = new HttpGet();
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request.setHeader("Content-Type", "text/plain; charset=utf-8");
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request.setURI(new URI(URL));
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HttpResponse response = client.execute(request);
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bufferedReader = new BufferedReader(newInputStreamReader(response.getEntity().getContent()));
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StringBuffer stringBuffer = new StringBuffer("");
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String line = "";
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String NL = System.getProperty("line.separator");
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while ((line = bufferedReader.readLine()) != null)
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{
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stringBuffer.append(line + NL);
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System.out.print(stringBuffer);
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}
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bufferedReader.close();
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page = stringBuffer.toString();
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System.out.println(page+"page");
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return page;
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}
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finally
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{
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if (bufferedReader != null)
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{
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try
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{
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bufferedReader.close();
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}
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catch (IOException e)
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{
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Log.d("BBB", e.toString());
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}
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}
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}
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}
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void examineJSONFile()
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{
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try
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{
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String Value="" ;
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String str = "";
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page = executeHttpGet(url);
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Log.i("hello", str.toString());
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JSONObject object=new JSONObject(page);
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str=str+object.names().toString();
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String sub1=str.substring(2, str.length()-2);
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String[] names=sub1.split("\",\"");
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for (int i=0;i<names.length;i++) {
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Value=Value+names[i] +":"+object.get(names[i])+"\n";
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System.out.println(names[i]);
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}
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/* String sub=str.substring(1, str.length()-1);
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String[] names=sub.split(",");
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String[] keyValue=new String[names.length];
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for (int i=0;i<names.length;i++) {
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names[i]=names[i].replace("\"","");
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Value=Value+names[i] +":"+object.get(names[i])+"\n";
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//keyValue[i]=names[i] +":"+object.get(names[i])+"\n";
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System.out.println(names[i]);
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}*/
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textView.setText(Value);
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/*for(int i=0;i<keyValue.length;i++){
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textView.setText(keyValue[i]);
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}*/
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Log.i("hello", str.toString());
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}
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catch (Exception je)
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{
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textView.setText("Error w/file: " + je.getMessage());
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}
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}
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}
[代码] main.xml
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//main.xml
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//==================
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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:orientation="vertical"
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android:background="#acd654"
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android:layout_width="fill_parent"
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android:layout_height="fill_parent"
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>
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<Button android:text="Fetch_Data"
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android:id="@+id/btnFetch"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"></Button>
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<Button android:text="Clear_Screen"
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android:id="@+id/btnClear"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"></Button>
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<TextView android:text=""
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android:gravity="center"
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android:textColor="#000a44"
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android:id="@+id/txtView"
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android:layout_width="fill_parent"
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android:layout_height="fill_parent"/>
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</LinearLayout>
[代码] android menifest.xml
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//android menifest.xml
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//=========================
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?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.v3"
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android:versionCode="1"
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android:versionName="1.0">
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<uses-sdk android:minSdkVersion="8" />
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<application android:icon="@drawable/icon" android:label="@string/app_name">
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<activity android:name=".JsonActivity"
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android:label="@string/app_name">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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</application>
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<uses-permission android:name="android.permission.INTERNET"/>
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</manifest>
