我如何解析URL在给定的code改为每在code定义的输出? [英] How do I parse the url in the given code to read as per the output defined in the code?
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问题描述
我是新来的Android和我想用 JSON
解析URL。我得到的例外,当我运行code和我的应用程序说不幸的myapp已停止运行。我也张贴了我的的logcat
。我想读的结果
当然code:101,结果
课程名称:blahblah结果
提供学期:第一学期,第二学期,第三学期
进口java.io.BufferedReader中;
进口java.io.IOException异常;
进口java.io.InputStreamReader中;
进口java.net.HttpURLConnection中;
进口java.net.MalformedURLException;
进口的java.net.URL;
进口java.net.URLConnection中;
进口的java.util.ArrayList;进口org.apache.http.client.ClientProtocolException;
进口org.apache.http.client.HttpClient;
进口org.apache.http.client.ResponseHandler;
进口org.apache.http.client.methods.HttpPost;
进口org.apache.http.impl.client.BasicResponseHandler;
进口org.apache.http.impl.client.DefaultHttpClient;
进口org.apache.http.params.BasicHttpParams;
进口org.apache.http.params.HttpParams;
进口org.json.JSONArray;
进口org.json.JSONException;
进口org.json.JSONObject;进口android.os.AsyncTask;
进口android.os.Bundle;
进口android.app.Activity;
进口android.app.ListActivity;
进口android.util.Log;
进口android.view.Menu;
进口android.view.View;
进口android.view.View.OnClickListener;
进口android.widget.ArrayAdapter;
进口android.widget.Button;
进口android.widget.TextView;
进口android.widget.Toast;公共类Compsci734MainActivity扩展ListActivity { AsyncTask的<太虚,太虚,太虚> mTask;
串jsonString; //字符串URL = \"https://api.twitter.com/1/statuses/user_timeline.json?include_entities=true&include_rts=true&screen_name=50cent&count=2\"; 字符串URL =http://redsox.tcs.auckland.ac.nz/734A/CSService.svc/courses; //键b;
@覆盖
公共无效的onCreate(捆绑savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.activity_compsci734_main);
//getActionBar().setDisplayHomeAsUpEnabled(true); Button按钮=(按钮)findViewById(R.id.btnFetch);
最终的TextView电视=(的TextView)findViewById(R.id.txtView); mTask =新的AsyncTask<太虚,太虚,太虚> (){
@覆盖
保护无效doInBackground(虚空...... PARAMS){
尝试{
jsonString = getJsonFromServer(URL);
}赶上(IOException异常五){
// TODO自动生成catch块
e.printStackTrace();
}
返回null;
} @覆盖
保护无效onPostExecute(虚空结果){
super.onPostExecute(结果); tv.setText(jsonString); }
};// Button按钮=(按钮)findViewById(R.id.btnFetch);
// TextView的电视=(的TextView)findViewById(R.id.txtView);
button.setOnClickListener(新OnClickListener(){ 公共无效的onClick(视图v){
尝试{
字符串URL =http://redsox.tcs.auckland.ac.nz
/734A/CSService.svc/courses;
HttpPost httppost =新HttpPost(URL);
尝试{
的HttpParams P =新BasicHttpParams();
HttpClient的HttpClient的=新DefaultHttpClient(P);
ResponseHandler所<串GT; ResponseHandler所=新
BasicResponseHandler();
字符串responseBody = httpclient.execute(httppost,
ResponseHandler所);
JSONArray jArray =新JSONArray(responseBody);
字符串文本=;
的for(int i = 0; I< jArray.length();我++){
JSONObject的E = jArray.getJSONObject(I)
文字文本= +课程编号:
+ e.getString(courseField)+\\ n;
文字文本= +课程名称:
+ e.getString(titleField)+\\ n;
文字文本= +学期所开设:
+ e.getString(semesterField)+\\ n;
//文本=文字+Birthyear:
//+ e.getString(birthyear)+\\ n;
}
Log.i(responseBody,文字);
tv.setText(文本);
}赶上(ClientProtocolException E){
e.printStackTrace();
}赶上(IOException异常五){
e.printStackTrace();
} }赶上(的Throwable t)的{
Toast.makeText(getBaseContext(),请求失败:+
t.toString(),Toast.LENGTH_LONG).show();
t.printStackTrace();
}
//tv.setText(result);
}
});
}
公共静态字符串getJsonFromServer(字符串URL)抛出IOException BufferedReader中的InputStream = NULL; 网址jsonUrl =新的URL(网址);
的URLConnection直流= jsonUrl.openConnection(); dc.setConnectTimeout(5000);
dc.setReadTimeout(5000); 的InputStream =新的BufferedReader(新的InputStreamReader(
dc.getInputStream())); //读取JSON结果转换成字符串
串jsonResult = inputStream.readLine();
返回jsonResult;
} }
这是我的logcat:
05-13 16:27:16.375:I / dalvikvm(1040):主题ID = 3:反应信号3
05-13 16:27:16.585:E / dalvikvm(1040):无法打开堆栈跟踪文件'/data/anr/traces.txt:是一个目录
05-13 16:27:16.585:D / AndroidRuntime(1040):关闭VM
05-13 16:27:16.595:W / dalvikvm(1040):主题ID = 1:螺纹未捕获的异常(组= 0x409c01f8)退出
05-13 16:27:16.605:E / AndroidRuntime(1040):致命异常:主要
05-13 16:27:16.605:E / AndroidRuntime(1040):了java.lang.RuntimeException:无法启动活动ComponentInfo {com.example.compsci_734p / com.example.compsci_734p.Compsci734MainActivity}了java.lang.RuntimeException:二进制XML文件行#7:你必须提供一个layout_width属性。
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.app.ActivityThread.access $ 600(ActivityThread.java:123)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1147)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.os.Handler.dispatchMessage(Handler.java:99)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.os.Looper.loop(Looper.java:137)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.app.ActivityThread.main(ActivityThread.java:4424)
05-13 16:27:16.605:E / AndroidRuntime(1040):在java.lang.reflect.Method.invokeNative(本机方法)
05-13 16:27:16.605:E / AndroidRuntime(1040):在java.lang.reflect.Method.invoke(Method.java:511)
05-13 16:27:16.605:E / AndroidRuntime(1040):在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:784)
05-13 16:27:16.605:E / AndroidRuntime(1040):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
05-13 16:27:16.605:E / AndroidRuntime(1040):在dalvik.system.NativeStart.main(本机方法)
05-13 16:27:16.605:E / AndroidRuntime(1040):了java.lang.RuntimeException:通过引起二进制XML文件行#7:你必须提供一个layout_width属性。
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.content.res.TypedArray.getLayoutDimension(TypedArray.java:491)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.view.ViewGroup $ LayoutParams.setBaseAttributes(ViewGroup.java:5318)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.view.ViewGroup $ MarginLayoutParams<&初始化GT;(ViewGroup.java:5439)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.widget.LinearLayout $的LayoutParams<&初始化GT;(LinearLayout.java:1776)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.widget.LinearLayout.generateLayoutParams(LinearLayout.java:1700)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.widget.LinearLayout.generateLayoutParams(LinearLayout.java:56)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.view.LayoutInflater.rInflate(LayoutInflater.java:741)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.view.LayoutInflater.inflate(LayoutInflater.java:489)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.view.LayoutInflater.inflate(LayoutInflater.java:396)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.view.LayoutInflater.inflate(LayoutInflater.java:352)
05-13 16:27:16.605:E / AndroidRuntime(1040):在com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:251)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.app.Activity.setContentView(Activity.java:1835)
05-13 16:27:16.605:E / AndroidRuntime(1040):在com.example.compsci_734p.Compsci734MainActivity.onCreate(Compsci734MainActivity.java:50)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.app.Activity.performCreate(Activity.java:4465)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
05-13 16:27:16.605:E / AndroidRuntime(1040):在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
05-13 16:27:16.605:E / AndroidRuntime(1040):11 ...更多
05-13 16:27:16.885的:I / dalvikvm(1040):主题ID = 3:反应以信号3
05-13 16:27:16.885:I / dalvikvm(1040):写的堆栈跟踪到/data/anr/traces.txt
05-13 16:27:17.155的:I / dalvikvm(1040):主题ID = 3:反应以信号3
05-13 16:27:17.165:I / dalvikvm(1040):写的堆栈跟踪到/data/anr/traces.txt
解决方案
感谢的人! :)我已经解决了它,并做了一个列表视图出于此。这是我的工作code:
包com.example.compsci_734t;进口java.io.BufferedReader中;
进口java.io.IOException异常;
进口的java.io.InputStream;
进口java.io.InputStreamReader中;
进口java.io.UnsupportedEncodingException;
进口的java.net.URL;
进口的java.util.ArrayList;
进口java.util.zip.GZIPInputStream;进口org.apache.http.HttpEntity;
进口org.apache.http.Htt presponse;
进口org.apache.http.StatusLine;
进口org.apache.http.client.ClientProtocolException;
进口org.apache.http.client.HttpClient;
进口org.apache.http.client.methods.HttpGet;
进口org.apache.http.impl.client.DefaultHttpClient;
进口org.json.JSONArray;
进口org.json.JSONException;
进口org.json.JSONObject;进口android.app.Activity;
进口android.app.ListActivity;
进口android.os.AsyncTask;
进口android.os.Bundle;
进口android.util.Log;
进口android.widget.ArrayAdapter;
进口android.widget.ListView;公共类扩展了人们的活动{ ArrayList的<串GT;项目=新的ArrayList<串GT;();
静态InputStream为= NULL;
//私有静态字符串URL =;
//私有静态字符串URL =HTTP:...;
私有静态字符串URL =HTTP ......;
// URL requestUrl =新的URL(网址);
JSONArray人= NULL;
私有静态最后弦乐TAG_COURSES =课程;
静态的JSONObject jObj = NULL;
静态JSON字符串=; @覆盖
公共无效的onCreate(捆绑savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.people);
新MyTasks()执行();
}
私有类MyTasks扩展的AsyncTask< URL,太虚,JSONObject的> { @覆盖
受保护的JSONObject doInBackground(URL网址...){
//返回loadJSON(URL);
尝试{
// defaultHttpClient
DefaultHttpClient的HttpClient =新DefaultHttpClient();
// HttpPost httpPost =新HttpPost(URL);
HTTPGET HTTPGET =新HTTPGET(URL);
HTT presponse HTT presponse = httpClient.execute(HTTPGET); HttpEntity httpEntity = HTT presponse.getEntity();
是= httpEntity.getContent(); }赶上(UnsupportedEncodingException五){
e.printStackTrace();
}赶上(ClientProtocolException E){
e.printStackTrace();
}赶上(IOException异常五){
e.printStackTrace();
}
尝试{
/ *的BufferedReader读者=新的BufferedReader(新的InputStreamReader(
是,UTF-8),8); * /
为InputStream的InputStream =是;
GZIPInputStream输入=新GZIPInputStream(InputStream的);
InputStreamReader的读者=新的InputStreamReader(输入);
在的BufferedReader =新的BufferedReader(读者);
StringBuilder的SB =新的StringBuilder();
串线= NULL;
而((行= in.readLine())!= NULL){
sb.append(线);
//System.out.println(line);
}
is.close();
JSON = sb.toString();
}赶上(例外五){
Log.e(缓冲区错误,错误转换结果+ e.toString());
} //尝试分析字符串到一个JSON对象 尝试{ JSONArray人=新JSONArray(JSON);
// JSONArray人=新JSONArray(JSON); 的for(int i = 0; I< people.length();我++){
//System.out.println(courses.getJSONObject(ⅰ)的ToString());
的JSONObject p值= people.getJSONObject(ⅰ); //存储在变量中的每个JSON项目
串为person_id = p.getString(someString1);
items.add(为person_id); /*Log.v(\"--,人物:\\ n+\\ n UPI:+为person_id); * /
}
// jObj =新的JSONObject(JSON);
}赶上(JSONException E){
Log.e(JSON解析器,错误分析数据+ e.toString());
} //返回JSON字符串
返回jObj;
} 保护无效onPostExecute(JSON的JSONObject){
ListView控件myListView =(ListView控件)findViewById(R.id.peopleList);
myListView.setAdapter(新ArrayAdapter(getApplicationContext(),android.R.layout.simple_list_item_1,物品));
}
}
I am new to android and I want to parse url using json
. I get exceptions when I run the code and my application says unfortunately myapp has stopped running. I have also posted my logcat
. I want to read
Course code:101,
Course title : "blahblah"
Semesters offered : Semester 1, Semester 2, Semester 3
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpParams;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.app.ListActivity;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class Compsci734MainActivity extends ListActivity {
AsyncTask<Void, Void, Void> mTask;
String jsonString;
//String url = "https://api.twitter.com/1/statuses/user_timeline.json?include_entities=true&include_rts=true&screen_name=50cent&count=2";
String url = "http://redsox.tcs.auckland.ac.nz/734A/CSService.svc/courses";
//Button b;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_compsci734_main);
//getActionBar().setDisplayHomeAsUpEnabled(true);
Button button = (Button) findViewById(R.id.btnFetch);
final TextView tv = (TextView) findViewById(R.id.txtView);
mTask = new AsyncTask<Void, Void, Void> () {
@Override
protected Void doInBackground(Void... params) {
try {
jsonString = getJsonFromServer(url);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
tv.setText(jsonString);
}
};
// Button button =(Button) findViewById(R.id.btnFetch);
// TextView tv =(TextView) findViewById(R.id.txtView);
button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
try {
String url = "http://redsox.tcs.auckland.ac.nz
/734A/CSService.svc/courses";
HttpPost httppost = new HttpPost(url);
try {
HttpParams p = new BasicHttpParams();
HttpClient httpclient = new DefaultHttpClient(p);
ResponseHandler<String> responseHandler = new
BasicResponseHandler();
String responseBody = httpclient.execute(httppost,
responseHandler);
JSONArray jArray = new JSONArray(responseBody);
String text="";
for (int i = 0; i < jArray.length(); i++) {
JSONObject e = jArray.getJSONObject(i);
text = text + "Course ID :
"+e.getString("courseField")+"\n";
text = text + "Course name :
"+e.getString("titleField")+"\n";
text = text + "Semesters offered:
"+e.getString("semesterField")+"\n";
//text = text + "Birthyear :
// "+e.getString("birthyear")+"\n";
}
Log.i(responseBody, text);
tv.setText(text);
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
} catch (Throwable t) {
Toast.makeText(getBaseContext(), "Request failed: " +
t.toString(), Toast.LENGTH_LONG).show();
t.printStackTrace();
}
//tv.setText(result);
}
});
}
public static String getJsonFromServer(String url) throws IOException {
BufferedReader inputStream = null;
URL jsonUrl = new URL(url);
URLConnection dc = jsonUrl.openConnection();
dc.setConnectTimeout(5000);
dc.setReadTimeout(5000);
inputStream = new BufferedReader(new InputStreamReader(
dc.getInputStream()));
// read the JSON results into a string
String jsonResult = inputStream.readLine();
return jsonResult;
}
}
Here is my logcat:
05-13 16:27:16.375: I/dalvikvm(1040): threadid=3: reacting to signal 3
05-13 16:27:16.585: E/dalvikvm(1040): Unable to open stack trace file '/data/anr/traces.txt': Is a directory
05-13 16:27:16.585: D/AndroidRuntime(1040): Shutting down VM
05-13 16:27:16.595: W/dalvikvm(1040): threadid=1: thread exiting with uncaught exception (group=0x409c01f8)
05-13 16:27:16.605: E/AndroidRuntime(1040): FATAL EXCEPTION: main
05-13 16:27:16.605: E/AndroidRuntime(1040): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.compsci_734p/com.example.compsci_734p.Compsci734MainActivity}: java.lang.RuntimeException: Binary XML file line #7: You must supply a layout_width attribute.
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.app.ActivityThread.access$600(ActivityThread.java:123)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.os.Handler.dispatchMessage(Handler.java:99)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.os.Looper.loop(Looper.java:137)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.app.ActivityThread.main(ActivityThread.java:4424)
05-13 16:27:16.605: E/AndroidRuntime(1040): at java.lang.reflect.Method.invokeNative(Native Method)
05-13 16:27:16.605: E/AndroidRuntime(1040): at java.lang.reflect.Method.invoke(Method.java:511)
05-13 16:27:16.605: E/AndroidRuntime(1040): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
05-13 16:27:16.605: E/AndroidRuntime(1040): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
05-13 16:27:16.605: E/AndroidRuntime(1040): at dalvik.system.NativeStart.main(Native Method)
05-13 16:27:16.605: E/AndroidRuntime(1040): Caused by: java.lang.RuntimeException: Binary XML file line #7: You must supply a layout_width attribute.
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.content.res.TypedArray.getLayoutDimension(TypedArray.java:491)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.view.ViewGroup$LayoutParams.setBaseAttributes(ViewGroup.java:5318)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.view.ViewGroup$MarginLayoutParams.<init>(ViewGroup.java:5439)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.widget.LinearLayout$LayoutParams.<init>(LinearLayout.java:1776)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.widget.LinearLayout.generateLayoutParams(LinearLayout.java:1700)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.widget.LinearLayout.generateLayoutParams(LinearLayout.java:56)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.view.LayoutInflater.rInflate(LayoutInflater.java:741)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
05-13 16:27:16.605: E/AndroidRuntime(1040): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:251)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.app.Activity.setContentView(Activity.java:1835)
05-13 16:27:16.605: E/AndroidRuntime(1040): at com.example.compsci_734p.Compsci734MainActivity.onCreate(Compsci734MainActivity.java:50)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.app.Activity.performCreate(Activity.java:4465)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
05-13 16:27:16.605: E/AndroidRuntime(1040): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
05-13 16:27:16.605: E/AndroidRuntime(1040): ... 11 more
05-13 16:27:16.885: I/dalvikvm(1040): threadid=3: reacting to signal 3
05-13 16:27:16.885: I/dalvikvm(1040): Wrote stack traces to '/data/anr/traces.txt'
05-13 16:27:17.155: I/dalvikvm(1040): threadid=3: reacting to signal 3
05-13 16:27:17.165: I/dalvikvm(1040): Wrote stack traces to '/data/anr/traces.txt'
解决方案
Thanks people!!! :) I have solved it and made a listview out of this. Here is my working code:
package com.example.compsci_734t;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.util.ArrayList;
import java.util.zip.GZIPInputStream;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.ListActivity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class People extends Activity{
ArrayList<String> items = new ArrayList<String>();
static InputStream is = null;
//private static String url = "";
//private static String url = "http:...";
private static String url = "http....";
//URL requestUrl = new URL(url);
JSONArray people = null;
private static final String TAG_COURSES = "Courses";
static JSONObject jObj = null;
static String json = "";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.people);
new MyTasks().execute();
}
private class MyTasks extends AsyncTask<URL, Void, JSONObject> {
@Override
protected JSONObject doInBackground(URL... urls) {
// return loadJSON(url);
try {
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
//HttpPost httpPost = new HttpPost(url);
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
/*BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "UTF-8"), 8);*/
InputStream inputStream = is;
GZIPInputStream input = new GZIPInputStream(inputStream);
InputStreamReader reader = new InputStreamReader(input);
BufferedReader in = new BufferedReader(reader);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = in.readLine()) != null) {
sb.append(line);
//System.out.println(line);
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
JSONArray people = new JSONArray(json);
//JSONArray people = new JSONArray(json);
for (int i = 0; i < people.length(); i++) {
//System.out.println(courses.getJSONObject(i).toString());
JSONObject p = people.getJSONObject(i);
// Storing each json item in variable
String person_id = p.getString("someString1");
items.add(person_id);
/*Log.v("--", "People: \n" + "\n UPI: " + person_id);*/
}
//jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
}
protected void onPostExecute(JSONObject json) {
ListView myListView = (ListView)findViewById(R.id.peopleList);
myListView.setAdapter(new ArrayAdapter(getApplicationContext(), android.R.layout.simple_list_item_1, items));
}
}
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