I'm trying to return data from a website using jsoup, but when I execute get() method an exception appears

Question

I'm new on android and I'm trying to return data from a website using jsoup, but when I execute get() method an exception appears. Here is my code:

public void Iqama (View view) throws IOException
{
    Document doc = Jsoup.connect("http://google.com/").get();

}

Here is my logcat

06-07 12:59:38.428: E/AndroidRuntime(2281): FATAL EXCEPTION: main

06-07 12:59:38.428: E/AndroidRuntime(2281): java.lang.IllegalStateException: Could not execute method of the activity
06-07 12:59:38.428: E/AndroidRuntime(2281):     at android.view.View$1.onClick(View.java:3735)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at android.view.View.performClick(View.java:4354)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at android.view.View$PerformClick.run(View.java:17948)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at android.os.Handler.handleCallback(Handler.java:725)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at android.os.Handler.dispatchMessage(Handler.java:92)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at android.os.Looper.loop(Looper.java:137)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at android.app.ActivityThread.main(ActivityThread.java:5293)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at java.lang.reflect.Method.invokeNative(Native Method)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at java.lang.reflect.Method.invoke(Method.java:511)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at dalvik.system.NativeStart.main(Native Method)
06-07 12:59:38.428: E/AndroidRuntime(2281): Caused by: java.lang.reflect.InvocationTargetException
06-07 12:59:38.428: E/AndroidRuntime(2281):     at java.lang.reflect.Method.invokeNative(Native Method)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at java.lang.reflect.Method.invoke(Method.java:511)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at android.view.View$1.onClick(View.java:3730)
06-07 12:59:38.428: E/AndroidRuntime(2281):     ... 11 more
06-07 12:59:38.428: E/AndroidRuntime(2281): Caused by: android.os.NetworkOnMainThreadException
06-07 12:59:38.428: E/AndroidRuntime(2281):     at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1118)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at java.net.InetAddress.lookupHostByName(InetAddress.java:385)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at java.net.InetAddress.getAllByName(InetAddress.java:214)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at libcore.net.http.HttpConnection.<init>(HttpConnection.java:70)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at libcore.net.http.HttpConnection.<init>(HttpConnection.java:50)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:340)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:87)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at libcore.net.http.HttpConnection.connect(HttpConnection.java:128)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:316)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at libcore.net.http.HttpEngine.connect(HttpEngine.java:311)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:290)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:240)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at libcore.net.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:81)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at org.jsoup.helper.HttpConnection$Response.execute(HttpConnection.java:425)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at org.jsoup.helper.HttpConnection$Response.execute(HttpConnection.java:410)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at org.jsoup.helper.HttpConnection.execute(HttpConnection.java:164)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at org.jsoup.helper.HttpConnection.get(HttpConnection.java:153)
06-07 12:59:38.428: E/AndroidRuntime(2281):     at rasha.example.masjed.Second.Iqama(Second.java:35)
06-07 12:59:38.428: E/AndroidRuntime(2281):     ... 14 more
06-07 12:59:51.831: I/Process(2281): Sending signal. PID: 2281 SIG: 9
06-07 12:59:52.151: D/libEGL(3235): loaded /system/lib/egl/libEGL_adreno200.so
06-07 12:59:52.151: D/libEGL(3235): loaded /system/lib/egl/libGLESv1_CM_adreno200.so
06-07 12:59:52.151: D/libEGL(3235): loaded /system/lib/egl/libGLESv2_adreno200.so
06-07 12:59:52.161: I/Adreno200-EGL(3235): <qeglDrvAPI_eglInitialize:265>: EGL 1.4 QUALCOMM build:  (CL3544079)
06-07 12:59:52.161: I/Adreno200-EGL(3235): Build Date: 03/28/13 Thu
06-07 12:59:52.161: I/Adreno200-EGL(3235): Local Branch: adreno_20130328
06-07 12:59:52.161: I/Adreno200-EGL(3235): Remote Branch: 
06-07 12:59:52.161: I/Adreno200-EGL(3235): Local Patches: 
06-07 12:59:52.161: I/Adreno200-EGL(3235): Reconstruct Branch: 
06-07 12:59:52.201: D/OpenGLRenderer(3235): Enabling debug mode 0
06-07 13:00:22.140: W/IInputConnectionWrapper(3235): setComposingText on inactive InputConnection

And Here is my Mainfest file

    android:minSdkVersion="8"
    android:targetSdkVersion="16" />

and used this permission before the application tag in the manifest

    <uses-permission android:name="android.permission.INTERNET"/>

I am using JSOUP-1.7.2.jar in libs folder

http://stackoverflow.com/questions/16672644/error-in-http-connectionandroid-os-networkonmainthreadexception/16672694#16672694. check this link — Raghunandan, Jun 07 '13 at 18:23

score 1 · Answer 1 · edited May 23 '17 at 10:25

1

Your error which cause the crash is NetworkOnMainThreadException. You call network function on main Ui thread. You should use AsyncTask. See here for more information.

edited May 23 '17 at 10:25

Community

1
1

answered Jun 07 '13 at 18:19

matreshkin

2,199
18
28

score 0 · Answer 2 · answered Jun 07 '13 at 18:20

The problem is Jsoup.connect("http://google.com/").get(); takes a lot of time and is not allowed to take place in the UI thread.

android.os.NetworkOnMainThreadException

Have a look at AsyncTask to solve your problem.

Something like:

private class JsoupTask extends AsyncTask<Void, Void, Document> {
   protected Document doInBackground(Void... nothing) {
       Document doc;
       doc = Jsoup.connect("http://google.com/").get();
       return doc;
   }


   protected void onPostExecute(Document doc) {
       // do something with doc
   }
}

To run it:

new JsoupTask().execute();

score 0 · Answer 3 · answered Jun 08 '13 at 06:52

0

Use an AsyncTask (API Doc) and remove the android:targetSdkVersion="16" />.

answered Jun 08 '13 at 06:52

I'm trying to return data from a website using jsoup, but when I execute get() method an exception appears

3 Answers3