Java DefaultHttpClient异步任务类超时异常

这是我的

AsyncTask

类：

public class JSONParser extends AsyncTask { public interface MyCallbackInterface { public void onRequestComplete(JSONObject result); } private MyCallbackInterface mCallback; public JSONParser(MyCallbackInterface callback) { mCallback = callback; Context context = (Context) callback; } public JSONObject getJSONFromUrl(String url) { // Making HTTP request DefaultHttpClient httpClient = new DefaultHttpClient(); HttpGet httpPost = new HttpGet(url); HttpResponse getResponse = null; final HttpParams httpParameters = httpClient.getParams(); HttpConnectionParams.setConnectionTimeout(httpParameters, 10 * 10000); HttpConnectionParams.setSoTimeout (httpParameters, 10 * 10000); try { getResponse = httpClient.execute(httpPost); } catch (ClientProtocolException e2) { e2.printStackTrace(); } catch (IOException e2) { e2.printStackTrace(); } final int statusCode = getResponse.getStatusLine().getStatusCode(); if (statusCode != HttpStatus.SC_OK) { Log.w(getClass().getSimpleName(), "Error " + statusCode + " for URL " + url); return null; } HttpEntity getResponseEntity = getResponse.getEntity(); String json = null; try { json = EntityUtils.toString(getResponseEntity); } catch (ParseException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } JSONObject jObj = null; // try parse the string to a JSON object try { jObj = new JSONObject(json); } catch (JSONException e) { Log.e("JSON Parser", "Error parsing data " + e.toString()); } // return JSON String return jObj; } @Override protected JSONObject doInBackground(String... params) { String url = params[0]; return getJSONFromUrl(url); } @Override protected void onPostExecute(JSONObject result) { mCallback.onRequestComplete(result); } } 我从同一UI调用

JSONParser

（类

RegisterActivity extends活动实现MyCallbackInterface

）

---

JSONParser mJSONParser1=新的JSONParser（context111）； mJSONParser1.execute（SERVER_URL+“？method=registration&user=“+user+”&pass=“+pass+”®Id=“+regId”）； 例外情况：

10-03 15:58:02.303: W/System.err(22414): java.net.SocketException: Connection timed out 10-03 15:58:02.350: W/System.err(22414): at org.apache.harmony.luni.platform.OSNetworkSystem.read(Native Method) 10-03 15:58:02.366: W/System.err(22414): at dalvik.system.BlockGuard$WrappedNetworkSystem.read(BlockGuard.java:273) 10-03 15:58:02.366: W/System.err(22414): at org.apache.harmony.luni.net.PlainSocketImpl.read(PlainSocketImpl.java:458) 10-03 15:58:02.366: W/System.err(22414): at org.apache.harmony.luni.net.SocketInputStream.read(SocketInputStream.java:85) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:103) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.io.AbstractSessionInputBuffer.readLine(AbstractSessionInputBuffer.java:191) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.conn.DefaultResponseParser.parseHead(DefaultResponseParser.java:82) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:174) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:179) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:235) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.conn.AbstractClientConnAdapter.receiveResponseHeader(AbstractClientConnAdapter.java:259) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:279) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:121) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:425) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465) 10-03 15:58:02.366: W/System.err(22414): at com.androidhive.pushnotifications.JSONParser.getJSONFromUrl(JSONParser.java:72) 10-03 15:58:02.366: W/System.err(22414): at com.androidhive.pushnotifications.JSONParser.doInBackground(JSONParser.java:121) 10-03 15:58:02.366: W/System.err(22414): at com.androidhive.pushnotifications.JSONParser.doInBackground(JSONParser.java:1) 10-03 15:58:02.366: W/System.err(22414): at android.os.AsyncTask$2.call(AsyncTask.java:185) 10-03 15:58:02.366: W/System.err(22414): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306) 10-03 15:58:02.366: W/System.err(22414): at java.util.concurrent.FutureTask.run(FutureTask.java:138) 10-03 15:58:02.366: W/System.err(22414): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088) 10-03 15:58:02.374: W/System.err(22414): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581) 10-03 15:58:02.374: W/System.err(22414): at java.lang.Thread.run(Thread.java:1019) 10-03 15:58:02.374: W/dalvikvm(22414): threadid=9: thread exiting with uncaught exception (group=0x40018560) 10-03 15:58:02.374: E/AndroidRuntime(22414): FATAL EXCEPTION: AsyncTask #1 10-03 15:58:02.374: E/AndroidRuntime(22414): java.lang.RuntimeException: An error occured while executing doInBackground() 10-03 15:58:02.374: E/AndroidRuntime(22414): at android.os.AsyncTask$3.done(AsyncTask.java:200) 10-03 15:58:02.374: E/AndroidRuntime(22414): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:274) 10-03 15:58:02.374: E/AndroidRuntime(22414): at java.util.concurrent.FutureTask.setException(FutureTask.java:125) 10-03 15:58:02.374: E/AndroidRuntime(22414): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:308) 10-03 15:58:02.374: E/AndroidRuntime(22414): at java.util.concurrent.FutureTask.run(FutureTask.java:138) 10-03 15:58:02.374: E/AndroidRuntime(22414): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088) 10-03 15:58:02.374: E/AndroidRuntime(22414): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581) 10-03 15:58:02.374: E/AndroidRuntime(22414): at java.lang.Thread.run(Thread.java:1019) 10-03 15:58:02.374: E/AndroidRuntime(22414): Caused by: java.lang.NullPointerException 10-03 15:58:02.374: E/AndroidRuntime(22414): at com.androidhive.pushnotifications.JSONParser.getJSONFromUrl(JSONParser.java:81) 10-03 15:58:02.374: E/AndroidRuntime(22414): at com.androidhive.pushnotifications.JSONParser.doInBackground(JSONParser.java:121) 10-03 15:58:02.374: E/AndroidRuntime(22414): at com.androidhive.pushnotifications.JSONParser.doInBackground(JSONParser.java:1) 10-03 15:58:02.374: E/AndroidRuntime(22414): at android.os.AsyncTask$2.call(AsyncTask.java:185) 10-03 15:58:02.374: E/AndroidRuntime(22414): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306) 10-03 15:58:02.374: E/AndroidRuntime(22414): ... 4 more 10-03 15:58:02.303:W/System.err（22414）：java.net.SocketException:连接超时 10-03 15:58:02.350:W/System.err（22414）：位于org.apache.harmony.luni.platform.OSNetworkSystem.read（本机方法） 10-03 15:58:02.366:W/System.err（22414）：位于dalvik.System.BlockGuard$WrappedNetworkSystem.read（BlockGuard.java:273） 10-0315:58:02.366:W/System.err（22414）：位于org.apache.harmony.luni.net.PlainSocketImpl.read（PlainSocketImpl.java:458） 10-03 15:58:02.366:W/System.err（22414）：位于org.apache.harmony.luni.net.SocketInputStream.read（SocketInputStream.java:85） 10-03 15:58:02.366:W/System.err（22414）：位于org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer（AbstractSessionInputBuffer.java:103） 10-03 15:58:02.366:W/System.err（22414）：位于org.apache.http.impl.io.AbstractSessionInputBuffer.readLine（AbstractSessionInputBuffer.java:191） 10-03 15:58:02.366:W/System.err（22414）：位于org.apache.http.impl.conn.DefaultResponseParser.parseHead（DefaultResponseParser.java:82） 10-0315:58:02.366:W/System.err（22414）：位于org.apache.http.impl.io.AbstractMessageParser.parse（AbstractMessageParser.java:174） 10-03 15:58:02.366:W/System.err（22414）：位于org.apache.http.impl.AbstractHttpClientConnection.ReceiverResponseHeader（AbstractHttpClientConnection.java:179） 10-03 15:58:02.366:W/System.err（22414）：位于org.apache.http.impl.conn.DefaultClientConnection.ReceiverResponseHeader（DefaultClientConnection.java:235） 10-03 15:58:02.366:W/System.err（22414）：位于org.apache.http.impl.conn.AbstractClientConnAdapter.ReceiverResponseHeader（AbstractClientConnAdapter.java:259） 10-03 15:58:02.366:W/System.err（22414）：位于org.apache.http.protocol.HttpRequestExecutor.doReceiverResponse（HttpRequestExecutor.java:279） 10-03 15:58:02.366:W/System.err（22414）：位于org.apache.http.protocol.HttpRequestExecutor.execute（HttpRequestExecutor.java:121） 10-03 15:58:02.366:W/System.err（22414）：在org.apache.http.impl.client.DefaultRequestDirector.execute（DefaultRequestDirector.java:425） 10-03 15:58:02.366:W/System.err（22414）：位于org.apache.http.impl.client.AbstractHttpClient.execute（AbstractHttpClient.java:555） 10-03 15:58:02.366:W/System.err（22414）：位于org.apache.http.impl.client.AbstractHttpClient.execute（AbstractHttpClient.java:487） 10-03 15:58:02.366:W/System.err（22414）：位于org.apache.http.impl.client.AbstractHttpClient.execute（AbstractHttpClient.java:465） 10-03 15:58:02.366:W/System.err（22414）：位于com.androidhive.pushnotifications.JSONParser.getJSONFromUrl（JSONParser.java:72） 10-0315:58:02.366:W/System.err（22414）：位于com.androidhive.pushnotifications.JSONParser.doInBackground（JSONParser.java:121） 10-0315:58:02.366:W/System.err（22414）：位于com.androidhive.pushnotifications.JSONParser.doInBackground（JSONParser.java:1） 10-0315:58:02.366:W/System.err（22414）：在android.os.AsyncTask$2.call（AsyncTask.java:185） 10-03 15:58:02.366:W/System.err（22414）：在java.util.concurrent.FutureTask$Sync.innerRun（FutureTask.java:306） 10-0315:58:02.366:W/System.err（22414）：在java.util.concurrent.FutureTask.run（FutureTask.java:138）处 10-03 15:58:02.366:W/System.err（22414）：位于java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1088） 10-03 15:58:02.374:W/System.err（22414）：位于java.util.concurrent.ThreadPoolExecutor$Worker.run（ThreadPoolExecutor.java:581） 10-0315:58:02.374:W/System.err（22414）：在java.lang.Thread.run（Thread.java:1019）处 10-03 15:58:02.374:W/dalvikvm（22414）：threadid=9:线程以未捕获异常退出（组=0x40018560） 10-0315:58:02.374:E/AndroidRuntime（22414）：致命异常：AsyncTask#1 10-03 15:58:02.374:E/AndroidRuntime（22414）：java.lang.RuntimeException:执行doInBackground（）时出错 10-0315:58:02.374:E/AndroidRuntime（22414）：在android.os.AsyncTask$3.done（AsyncTask.java:200） 10-03 15:58:02.374:E/AndroidRuntime（22414）：位于java.util.concurrent.FutureTask$Sync.innerSetException（FutureTask.java:274） 10-03 15:58:02.374:E/AndroidRuntime（22414）：在java.util.concurrent.FutureTask.setException（FutureTask.java:125） 10-03 15:58:02.374:E/AndroidRuntime（22414）：位于java.util.concurrent.FutureTask$Sync.innerRun（FutureTask.java:308） 10-0315:58:02.374:E/AndroidRuntime（22414）：在java.util.concurrent.FutureTask.run（FutureTask.java:138） 10-03 15:58:02.374:E/AndroidRuntime（22414）：位于java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1088） 10-03 15:58:02.374:E/AndroidRuntime（22414）：在java.util.concurrent.ThreadPoolExecutor$Worker.run（ThreadPoolExecutor.java:581） 10-0315:58:02.374:E/AndroidRuntime（22414）：在java.lang.Thread.run（Thread.java:1019） 10-03 15:58:02.374:E/AndroidRuntime（22414）：由以下原因引起：java.lang.NullPointerException 10-03 15:58:02.374:E/AndroidRuntime（22414）：位于com.androidhive.pushnotifications.JSONParser.getJSONFromUrl（JSONParser.java:81） 10-03 15:58:02.374:E/AndroidRuntime（22414）：位于com.androidhive.pushnotifications.JSONParser.doInBackground（JSONParser.java:121） 10-03 15:58:02.374:E/AndroidRuntime（22414）：位于com.androidhive.pushnotifications.JSONParser.doInBackground（JSONParser.java:1） 10-0315:58:02.374:E/AndroidRuntime（22414）：在android.os.AsyncTask$2.call（AsyncTask.java:185） 10-03 15:58:02.374:E/AndroidRuntime（22414）：在java.util.concurrent.FutureTask$Sync.innerRun（FutureTask.java:306） 10-0315:58:02.374:E/AndroidRuntime（22414）：。。。4更多 我可以上网访问服务器。 它在三星s2（安卓4.1.2）上运行，但在摩托罗拉（安卓2.3.3）上却没有

任何想法都将受到欢迎

我 JSONParser mJSONParser1 = new JSONParser(context111); mJSONParser1.execute(SERVER_URL+"?method=registration&user="+user+"&pass="+pass+"®Id="+regId); 10-03 15:58:02.303: W/System.err(22414): java.net.SocketException: Connection timed out 10-03 15:58:02.350: W/System.err(22414): at org.apache.harmony.luni.platform.OSNetworkSystem.read(Native Method) 10-03 15:58:02.366: W/System.err(22414): at dalvik.system.BlockGuard$WrappedNetworkSystem.read(BlockGuard.java:273) 10-03 15:58:02.366: W/System.err(22414): at org.apache.harmony.luni.net.PlainSocketImpl.read(PlainSocketImpl.java:458) 10-03 15:58:02.366: W/System.err(22414): at org.apache.harmony.luni.net.SocketInputStream.read(SocketInputStream.java:85) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:103) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.io.AbstractSessionInputBuffer.readLine(AbstractSessionInputBuffer.java:191) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.conn.DefaultResponseParser.parseHead(DefaultResponseParser.java:82) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:174) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:179) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:235) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.conn.AbstractClientConnAdapter.receiveResponseHeader(AbstractClientConnAdapter.java:259) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:279) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:121) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:425) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487) 10-03 15:58:02.366: W/System.err(22414): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465) 10-03 15:58:02.366: W/System.err(22414): at com.androidhive.pushnotifications.JSONParser.getJSONFromUrl(JSONParser.java:72) 10-03 15:58:02.366: W/System.err(22414): at com.androidhive.pushnotifications.JSONParser.doInBackground(JSONParser.java:121) 10-03 15:58:02.366: W/System.err(22414): at com.androidhive.pushnotifications.JSONParser.doInBackground(JSONParser.java:1) 10-03 15:58:02.366: W/System.err(22414): at android.os.AsyncTask$2.call(AsyncTask.java:185) 10-03 15:58:02.366: W/System.err(22414): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306) 10-03 15:58:02.366: W/System.err(22414): at java.util.concurrent.FutureTask.run(FutureTask.java:138) 10-03 15:58:02.366: W/System.err(22414): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088) 10-03 15:58:02.374: W/System.err(22414): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581) 10-03 15:58:02.374: W/System.err(22414): at java.lang.Thread.run(Thread.java:1019) 10-03 15:58:02.374: W/dalvikvm(22414): threadid=9: thread exiting with uncaught exception (group=0x40018560) 10-03 15:58:02.374: E/AndroidRuntime(22414): FATAL EXCEPTION: AsyncTask #1 10-03 15:58:02.374: E/AndroidRuntime(22414): java.lang.RuntimeException: An error occured while executing doInBackground() 10-03 15:58:02.374: E/AndroidRuntime(22414): at android.os.AsyncTask$3.done(AsyncTask.java:200) 10-03 15:58:02.374: E/AndroidRuntime(22414): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:274) 10-03 15:58:02.374: E/AndroidRuntime(22414): at java.util.concurrent.FutureTask.setException(FutureTask.java:125) 10-03 15:58:02.374: E/AndroidRuntime(22414): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:308) 10-03 15:58:02.374: E/AndroidRuntime(22414): at java.util.concurrent.FutureTask.run(FutureTask.java:138) 10-03 15:58:02.374: E/AndroidRuntime(22414): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088) 10-03 15:58:02.374: E/AndroidRuntime(22414): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581) 10-03 15:58:02.374: E/AndroidRuntime(22414): at java.lang.Thread.run(Thread.java:1019) 10-03 15:58:02.374: E/AndroidRuntime(22414): Caused by: java.lang.NullPointerException 10-03 15:58:02.374: E/AndroidRuntime(22414): at com.androidhive.pushnotifications.JSONParser.getJSONFromUrl(JSONParser.java:81) 10-03 15:58:02.374: E/AndroidRuntime(22414): at com.androidhive.pushnotifications.JSONParser.doInBackground(JSONParser.java:121) 10-03 15:58:02.374: E/AndroidRuntime(22414): at com.androidhive.pushnotifications.JSONParser.doInBackground(JSONParser.java:1) 10-03 15:58:02.374: E/AndroidRuntime(22414): at android.os.AsyncTask$2.call(AsyncTask.java:185) 10-03 15:58:02.374: E/AndroidRuntime(22414): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306) 10-03 15:58:02.374: E/AndroidRuntime(22414): ... 4 more

DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost("SERVER_URL");
httpPost.setEntity(new UrlEncodedFormEntity(params));

List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("email", email));