在机器人的AsyncTask:如何删除致命的异常 [英] how to remove FATAL EXCEPTION: AsyncTask in android
问题描述
10-23 00:41:00.705:E / AndroidRuntime(3622):致命异常:AsyncTask的#1
10-23 00:41:00.705:E / AndroidRuntime(3622):java.lang.RuntimeException的:一个错误而执行doInBackground发生()
10-23 00:41:00.705:E / AndroidRuntime(3622):在android.os.AsyncTask $ 3.done(AsyncTask.java:299)
10-23 00:41:00.705:E / AndroidRuntime(3622):在java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352)
10-23 00:41:00.705:E / AndroidRuntime(3622):在java.util.concurrent.FutureTask.setException(FutureTask.java:219)
10-23 00:41:00.705:E / AndroidRuntime(3622):在java.util.concurrent.FutureTask.run(FutureTask.java:239)
10-23 00:41:00.705:E / AndroidRuntime(3622):在android.os.AsyncTask $ SerialExecutor $ 1.运行(AsyncTask.java:230)
10-23 00:41:00.705:E / AndroidRuntime(3622):在java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
10-23 00:41:00.705:E / AndroidRuntime(3622):在java.util.concurrent.ThreadPoolExecutor中的$ Worker.run(ThreadPoolExecutor.java:573)
10-23 00:41:00.705:E / AndroidRuntime(3622):在java.lang.Thread.run(Thread.java:856)
10-23 00:41:00.705:E / AndroidRuntime(3622):致:java.lang.IllegalStateException:内容都被消耗
10-23 00:41:00.705:E / AndroidRuntime(3622):在org.apache.http.entity.BasicHttpEntity.getContent(BasicHttpEntity.java:84)
10-23 00:41:00.705:E / AndroidRuntime(3622):在org.apache.http.entity.BasicHttpEntity.writeTo(BasicHttpEntity.java:126)
10-23 00:41:00.705:E / AndroidRuntime(3622):在org.apache.http.entity.HttpEntityWrapper.writeTo(HttpEntityWrapper.java:101)
10-23 00:41:00.705:E / AndroidRuntime(3622):在org.apache.http.conn.BasicManagedEntity.writeTo(BasicManagedEntity.java:126)
10-23 00:41:00.705:E / AndroidRuntime(3622):在com.firstgroup.webservice.RequestTask.doInBackground(RequestTask.java:51)
10-23 00:41:00.705:E / AndroidRuntime(3622):在com.firstgroup.webservice.RequestTask.doInBackground(RequestTask.java:1)
10-23 00:41:00.705:E / AndroidRuntime(3622):在android.os.AsyncTask $ 2.call(AsyncTask.java:287)
10-23 00:41:00.705:E / AndroidRuntime(3622):在java.util.concurrent.FutureTask.run(FutureTask.java:234)
10-23 00:41:00.705:E / AndroidRuntime(3622):4 ...更多
你好
我打电话给我的网络服务使用GSON库我收到exception.I不知道为什么它会发生.could请你告诉我删除这个错误
我会给你的步骤我做什么..
1)主要活动
公共类Appliacationload扩展活动实现WebserviceCallBack {
@覆盖
保护无效的onCreate(包savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.appliacationload);
/ * WebserviceMethod callDepartudeDashboard =新WebserviceMethod();
callDepartudeDashboard.setObserver(本);
callDepartudeDashboard.getwebService(ConstantVariable.dashboardWebServiceURL+"a/"+"arrival"+"?crs$c$c=hnh");*/
RequestTask callWebService =新RequestTask();
callWebService.setObserver(本);
callWebService.execute(ConstantVariable.dashboardWebServiceURL +A /+到达+CRS code = VIC?);
}
@覆盖
公共无效getWebserviceResponse(字符串响应){
// TODO自动生成方法存根
Log.d(回应,回应);
}
}
和我有一个支架和RequestTask类来调用Web服务并返回再打。
公共类RequestTask扩展的AsyncTask<字符串,字符串,字符串> {
私人WebserviceCallBack回调;
私人ProgressDialog progressDialog;
@覆盖
在preExecute保护无效(){
// TODO自动生成方法存根
progressDialog =新ProgressDialog((上下文)回调);
super.on preExecute();
progressDialog.setTitle(请稍候...);
progressDialog.setMessage(web服务呼叫......);
progressDialog.setCancelable(真正的);
progressDialog.show();
}
@覆盖
保护字符串doInBackground(字符串... URI){
HttpClient的HttpClient的=新DefaultHttpClient();
HTT presponse响应;
字符串responseString = NULL;
尝试 {
响应= httpclient.execute(新HTTPGET(URI [0]));
状态行状态行= response.getStatusLine();
如果(statusLine.getStatus code()== HttpStatus.SC_OK){
读卡器读卡器=新的InputStreamReader(response.getEntity()的getContent());
GSON GSON =新GSON();
持有人response1 = gson.fromJson(读卡器,Holder.class);
ByteArrayOutputStream OUT =新ByteArrayOutputStream();
。response.getEntity()的writeTo(出);
out.close();
responseString = out.toString();
} 其他{
//关闭连接。
。response.getEntity()的getContent()close()方法。
抛出新IOException异常(statusLine.getReasonPhrase());
}
}赶上(ClientProtocolException E){
// TODO处理问题.. \
progressDialog.hide();
}赶上(IOException异常E){
// TODO处理问题..
progressDialog.hide();
}
返回responseString;
}
@覆盖
保护无效onPostExecute(字符串结果){
super.onPostExecute(结果);
//与响应做任何事..
如果(回调!= NULL){
callBack.getWebserviceResponse(结果);
}
progressDialog.hide();
}
公共无效setObserver(WebserviceCallBack回调){
回调=回调;
}
}
Holder类;
公共类持有人{
名单< deparaturedaseboarddto>数据;
}
新更新当我改变这样的我的要求的任务。
公共类RequestTask扩展的AsyncTask<字符串,字符串,为InputStream> {
私人WebserviceCallBack回调;
私人ProgressDialog progressDialog;
@覆盖
在preExecute保护无效(){
// TODO自动生成方法存根
progressDialog =新ProgressDialog((上下文)回调);
super.on preExecute();
progressDialog.setTitle(请稍候...);
progressDialog.setMessage(web服务呼叫......);
progressDialog.setCancelable(真正的);
progressDialog.show();
}
@覆盖
受保护的InputStream doInBackground(字符串... URI){
HttpClient的HttpClient的=新DefaultHttpClient();
HTT presponse响应;
字符串responseString = NULL;
尝试 {
响应= httpclient.execute(新HTTPGET(URI [0]));
状态行状态行= response.getStatusLine();
如果(statusLine.getStatus code()== HttpStatus.SC_OK){
/ *读卡器读卡器=新的InputStreamReader(response.getEntity()的getContent());
GSON GSON =新GSON();
持有人response1 = gson.fromJson(读卡器,Holder.class);
ByteArrayOutputStream OUT =新ByteArrayOutputStream();
。response.getEntity()的writeTo(出);
out.close();
responseString = out.toString(); * /
返回response.getEntity()的getContent()。
} 其他{
//关闭连接。
。response.getEntity()的getContent()close()方法。
抛出新IOException异常(statusLine.getReasonPhrase());
}
}赶上(ClientProtocolException E){
// TODO处理问题.. \
progressDialog.hide();
}赶上(IOException异常E){
// TODO处理问题..
progressDialog.hide();
}
返回null;
}
@覆盖
保护无效onPostExecute(InputStream的结果){
super.onPostExecute(结果);
//与响应做任何事..
如果(回调!= NULL){
callBack.getWebserviceResponse(结果);
}
progressDialog.dismiss();
progressDialog = NULL;
}
公共无效setObserver(WebserviceCallBack回调){
回调=回调;
}
}
和回调一样,
公共接口WebserviceCallBack {
公共无效getWebserviceResponse(InputStream的结果);
}
和主要活动一样,
公共类Appliacationload扩展活动实现WebserviceCallBack {
@覆盖
保护无效的onCreate(包savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.appliacationload);
/ * WebserviceMethod callDepartudeDashboard =新WebserviceMethod();
callDepartudeDashboard.setObserver(本);
callDepartudeDashboard.getwebService(ConstantVariable.dashboardWebServiceURL+"a/"+"arrival"+"?crs$c$c=hnh");*/
RequestTask callWebService =新RequestTask();
callWebService.setObserver(本);
callWebService.execute(ConstantVariable.dashboardWebServiceURL +A /+到达+CRS code = VIC?);
}
@覆盖
公共无效getWebserviceResponse(InputStream的结果){
// TODO自动生成方法存根
读卡器读卡器=新InputStreamReader的(结果);
GSON GSON =新GSON();
持有人response1 = gson.fromJson(读卡器,Holder.class);
Log.d(-----,纳文);
}
我得到这个例外,为什么..?我随叫随到发送输入流回来,在这里做的主要活动。
异常:
3月10日至二十三日:07:33.956:E / AndroidRuntime(22412):致命异常:主要
3月10日至23号:07:33.956:E / AndroidRuntime(22412):android.os.NetworkOnMainThreadException
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在android.os.StrictMode $ AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在libcore.io.BlockGuardOs.recvfrom(BlockGuardOs.java:163)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在libcore.io.IoBridge.recvfrom(IoBridge.java:513)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在java.net.PlainSocketImpl.read(PlainSocketImpl.java:488)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在java.net.PlainSocketImpl.access $ 000(PlainSocketImpl.java:46)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在java.net.PlainSocketImpl $ PlainSocketInputStream.read(PlainSocketImpl.java:240)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:103)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在org.apache.http.impl.io.AbstractSessionInputBuffer.read(AbstractSessionInputBuffer.java:134)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在org.apache.http.impl.io.ChunkedInputStream.read(ChunkedInputStream.java:161)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:159)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在java.io.InputStreamReader.read(InputStreamReader.java:244)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在com.google.gson.stream.JsonReader.fillBuffer(JsonReader.java:1298)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在com.google.gson.stream.JsonReader.nextQuotedValue(JsonReader.java:1028)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在com.google.gson.stream.JsonReader.nextName(JsonReader.java:796)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:178)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.read(TypeAdapterRuntimeTypeWrapper.java:40)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:81)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:60)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:95)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:183)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在com.google.gson.Gson.fromJson(Gson.java:805)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在com.google.gson.Gson.fromJson(Gson.java:743)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在com.firstgroup.applicationload.Appliacationload.getWebserviceResponse(Appliacationload.java:48)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在com.firstgroup.webservice.RequestTask.onPostExecute(RequestTask.java:77)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在com.firstgroup.webservice.RequestTask.onPostExecute(RequestTask.java:1)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在android.os.AsyncTask.finish(AsyncTask.java:631)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在android.os.AsyncTask.access $ 600(AsyncTask.java:177)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在android.os.AsyncTask $ InternalHandler.handleMessage(AsyncTask.java:644)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在android.os.Handler.dispatchMessage(Handler.java:99)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在android.os.Looper.loop(Looper.java:137)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在android.app.ActivityThread.main(ActivityThread.java:5041)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在java.lang.reflect.Method.invokeNative(本机方法)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在java.lang.reflect.Method.invoke(Method.java:511)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:793)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
3月10日至23号:07:33.956:E / AndroidRuntime(22412):在dalvik.system.NativeStart.main(本机方法)
原因是,你只能消耗内容
从实体
键。
您做了两次(也许你不知道它),在这里
读卡器读卡器=新的InputStreamReader(response.getEntity()的getContent());
在这里
response.getEntity()的writeTo(出)。
我知道这听起来有点不可思议,但实际上的writeTo()函数会从实体内容写入的OutputStream
。你可以看到它的文档<一中href="http://developer.android.com/reference/org/apache/http/HttpEntity.html#writeTo(java.io.OutputStream)"相对=nofollow>这里
另一个解决办法可以使用的将其串并让GSON处理它
@覆盖
保护字符串doInBackground(字符串... URI){
HttpClient的HttpClient的=新DefaultHttpClient();
HTT presponse响应;
字符串responseString = NULL;
尝试 {
响应= httpclient.execute(新HTTPGET(URI [0]));
状态行状态行= response.getStatusLine();
如果(statusLine.getStatus code()== HttpStatus.SC_OK){
responseString = EntityUtils.toString(response.getEntity()); //内容将消耗一次
GSON GSON =新GSON();
持有人response1 = gson.fromJson(responseString,Holder.class);
} 其他{
//关闭连接。
。response.getEntity()的getContent()close()方法。
抛出新IOException异常(statusLine.getReasonPhrase());
}
}赶上(ClientProtocolException E){
// TODO处理问题.. \
progressDialog.hide();
}赶上(IOException异常E){
// TODO处理问题..
progressDialog.hide();
}
返回responseString;
}
我希望我的回答能帮助你!
10-23 00:41:00.705: E/AndroidRuntime(3622): FATAL EXCEPTION: AsyncTask #1
10-23 00:41:00.705: E/AndroidRuntime(3622): java.lang.RuntimeException: An error occured while executing doInBackground()
10-23 00:41:00.705: E/AndroidRuntime(3622): at android.os.AsyncTask$3.done(AsyncTask.java:299)
10-23 00:41:00.705: E/AndroidRuntime(3622): at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352)
10-23 00:41:00.705: E/AndroidRuntime(3622): at java.util.concurrent.FutureTask.setException(FutureTask.java:219)
10-23 00:41:00.705: E/AndroidRuntime(3622): at java.util.concurrent.FutureTask.run(FutureTask.java:239)
10-23 00:41:00.705: E/AndroidRuntime(3622): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
10-23 00:41:00.705: E/AndroidRuntime(3622): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
10-23 00:41:00.705: E/AndroidRuntime(3622): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
10-23 00:41:00.705: E/AndroidRuntime(3622): at java.lang.Thread.run(Thread.java:856)
10-23 00:41:00.705: E/AndroidRuntime(3622): Caused by: java.lang.IllegalStateException: Content has been consumed
10-23 00:41:00.705: E/AndroidRuntime(3622): at org.apache.http.entity.BasicHttpEntity.getContent(BasicHttpEntity.java:84)
10-23 00:41:00.705: E/AndroidRuntime(3622): at org.apache.http.entity.BasicHttpEntity.writeTo(BasicHttpEntity.java:126)
10-23 00:41:00.705: E/AndroidRuntime(3622): at org.apache.http.entity.HttpEntityWrapper.writeTo(HttpEntityWrapper.java:101)
10-23 00:41:00.705: E/AndroidRuntime(3622): at org.apache.http.conn.BasicManagedEntity.writeTo(BasicManagedEntity.java:126)
10-23 00:41:00.705: E/AndroidRuntime(3622): at com.firstgroup.webservice.RequestTask.doInBackground(RequestTask.java:51)
10-23 00:41:00.705: E/AndroidRuntime(3622): at com.firstgroup.webservice.RequestTask.doInBackground(RequestTask.java:1)
10-23 00:41:00.705: E/AndroidRuntime(3622): at android.os.AsyncTask$2.call(AsyncTask.java:287)
10-23 00:41:00.705: E/AndroidRuntime(3622): at java.util.concurrent.FutureTask.run(FutureTask.java:234)
10-23 00:41:00.705: E/AndroidRuntime(3622): ... 4 more
Hi
I am calling my web service using gson library I am getting exception.I don't know why it is occur .could you please tell me removing this error
I will give you steps what I did ..
1 )Main activity
public class Appliacationload extends Activity implements WebserviceCallBack{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.appliacationload);
/*WebserviceMethod callDepartudeDashboard=new WebserviceMethod();
callDepartudeDashboard.setObserver(this);
callDepartudeDashboard.getwebService(ConstantVariable.dashboardWebServiceURL+"a/"+"arrival"+"?crsCode=hnh");*/
RequestTask callWebService=new RequestTask();
callWebService.setObserver(this);
callWebService.execute(ConstantVariable.dashboardWebServiceURL+"a/"+"arrival"+"?crsCode=vic");
}
@Override
public void getWebserviceResponse(String response) {
// TODO Auto-generated method stub
Log.d("response", response);
}
}
and I have one holder and RequestTask class to call webservice and return call back .
public class RequestTask extends AsyncTask<String, String, String>{
private WebserviceCallBack callBack;
private ProgressDialog progressDialog;
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
progressDialog= new ProgressDialog((Context) callBack);
super.onPreExecute();
progressDialog.setTitle("Please Wait...");
progressDialog.setMessage("Webservice Call...");
progressDialog.setCancelable(true);
progressDialog.show();
}
@Override
protected String doInBackground(String... uri) {
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response;
String responseString = null;
try {
response = httpclient.execute(new HttpGet(uri[0]));
StatusLine statusLine = response.getStatusLine();
if(statusLine.getStatusCode() == HttpStatus.SC_OK){
Reader reader = new InputStreamReader(response.getEntity().getContent());
Gson gson = new Gson();
Holder response1 = gson.fromJson(reader, Holder.class);
ByteArrayOutputStream out = new ByteArrayOutputStream();
response.getEntity().writeTo(out);
out.close();
responseString = out.toString();
} else{
//Closes the connection.
response.getEntity().getContent().close();
throw new IOException(statusLine.getReasonPhrase());
}
} catch (ClientProtocolException e) {
//TODO Handle problems..\
progressDialog.hide();
} catch (IOException e) {
//TODO Handle problems..
progressDialog.hide();
}
return responseString;
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
//Do anything with response..
if(callBack!=null){
callBack.getWebserviceResponse(result);
}
progressDialog.hide();
}
public void setObserver(WebserviceCallBack callback){
callBack=callback;
}
}
Holder class;
public class Holder {
List<deparaturedaseboarddto> data;
}
New Update when I change my request task like that ..
public class RequestTask extends AsyncTask<String, String, InputStream>{
private WebserviceCallBack callBack;
private ProgressDialog progressDialog;
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
progressDialog= new ProgressDialog((Context) callBack);
super.onPreExecute();
progressDialog.setTitle("Please Wait...");
progressDialog.setMessage("Webservice Call...");
progressDialog.setCancelable(true);
progressDialog.show();
}
@Override
protected InputStream doInBackground(String... uri) {
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response;
String responseString = null;
try {
response = httpclient.execute(new HttpGet(uri[0]));
StatusLine statusLine = response.getStatusLine();
if(statusLine.getStatusCode() == HttpStatus.SC_OK){
/*Reader reader = new InputStreamReader(response.getEntity().getContent());
Gson gson = new Gson();
Holder response1 = gson.fromJson(reader, Holder.class);
ByteArrayOutputStream out = new ByteArrayOutputStream();
response.getEntity().writeTo(out);
out.close();
responseString = out.toString();*/
return response.getEntity().getContent();
} else{
//Closes the connection.
response.getEntity().getContent().close();
throw new IOException(statusLine.getReasonPhrase());
}
} catch (ClientProtocolException e) {
//TODO Handle problems..\
progressDialog.hide();
} catch (IOException e) {
//TODO Handle problems..
progressDialog.hide();
}
return null;
}
@Override
protected void onPostExecute(InputStream result) {
super.onPostExecute(result);
//Do anything with response..
if(callBack!=null){
callBack.getWebserviceResponse(result);
}
progressDialog.dismiss();
progressDialog=null;
}
public void setObserver(WebserviceCallBack callback){
callBack=callback;
}
}
and call back like that
public interface WebserviceCallBack {
public void getWebserviceResponse(InputStream result);
}
and main activity like that
public class Appliacationload extends Activity implements WebserviceCallBack{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.appliacationload);
/*WebserviceMethod callDepartudeDashboard=new WebserviceMethod();
callDepartudeDashboard.setObserver(this);
callDepartudeDashboard.getwebService(ConstantVariable.dashboardWebServiceURL+"a/"+"arrival"+"?crsCode=hnh");*/
RequestTask callWebService=new RequestTask();
callWebService.setObserver(this);
callWebService.execute(ConstantVariable.dashboardWebServiceURL+"a/"+"arrival"+"?crsCode=vic");
}
@Override
public void getWebserviceResponse(InputStream result) {
// TODO Auto-generated method stub
Reader reader = new InputStreamReader(result);
Gson gson = new Gson();
Holder response1 = gson.fromJson(reader, Holder.class);
Log.d("-----", "naveen");
}
I got this exception why ..?I am sending the input stream on call back and make here in main activity ..
exception:
10-23 03:07:33.956: E/AndroidRuntime(22412): FATAL EXCEPTION: main
10-23 03:07:33.956: E/AndroidRuntime(22412): android.os.NetworkOnMainThreadException
10-23 03:07:33.956: E/AndroidRuntime(22412): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117)
10-23 03:07:33.956: E/AndroidRuntime(22412): at libcore.io.BlockGuardOs.recvfrom(BlockGuardOs.java:163)
10-23 03:07:33.956: E/AndroidRuntime(22412): at libcore.io.IoBridge.recvfrom(IoBridge.java:513)
10-23 03:07:33.956: E/AndroidRuntime(22412): at java.net.PlainSocketImpl.read(PlainSocketImpl.java:488)
10-23 03:07:33.956: E/AndroidRuntime(22412): at java.net.PlainSocketImpl.access$000(PlainSocketImpl.java:46)
10-23 03:07:33.956: E/AndroidRuntime(22412): at java.net.PlainSocketImpl$PlainSocketInputStream.read(PlainSocketImpl.java:240)
10-23 03:07:33.956: E/AndroidRuntime(22412): at org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:103)
10-23 03:07:33.956: E/AndroidRuntime(22412): at org.apache.http.impl.io.AbstractSessionInputBuffer.read(AbstractSessionInputBuffer.java:134)
10-23 03:07:33.956: E/AndroidRuntime(22412): at org.apache.http.impl.io.ChunkedInputStream.read(ChunkedInputStream.java:161)
10-23 03:07:33.956: E/AndroidRuntime(22412): at org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:159)
10-23 03:07:33.956: E/AndroidRuntime(22412): at java.io.InputStreamReader.read(InputStreamReader.java:244)
10-23 03:07:33.956: E/AndroidRuntime(22412): at com.google.gson.stream.JsonReader.fillBuffer(JsonReader.java:1298)
10-23 03:07:33.956: E/AndroidRuntime(22412): at com.google.gson.stream.JsonReader.nextQuotedValue(JsonReader.java:1028)
10-23 03:07:33.956: E/AndroidRuntime(22412): at com.google.gson.stream.JsonReader.nextName(JsonReader.java:796)
10-23 03:07:33.956: E/AndroidRuntime(22412): at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:178)
10-23 03:07:33.956: E/AndroidRuntime(22412): at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.read(TypeAdapterRuntimeTypeWrapper.java:40)
10-23 03:07:33.956: E/AndroidRuntime(22412): at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:81)
10-23 03:07:33.956: E/AndroidRuntime(22412): at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:60)
10-23 03:07:33.956: E/AndroidRuntime(22412): at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:95)
10-23 03:07:33.956: E/AndroidRuntime(22412): at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:183)
10-23 03:07:33.956: E/AndroidRuntime(22412): at com.google.gson.Gson.fromJson(Gson.java:805)
10-23 03:07:33.956: E/AndroidRuntime(22412): at com.google.gson.Gson.fromJson(Gson.java:743)
10-23 03:07:33.956: E/AndroidRuntime(22412): at com.firstgroup.applicationload.Appliacationload.getWebserviceResponse(Appliacationload.java:48)
10-23 03:07:33.956: E/AndroidRuntime(22412): at com.firstgroup.webservice.RequestTask.onPostExecute(RequestTask.java:77)
10-23 03:07:33.956: E/AndroidRuntime(22412): at com.firstgroup.webservice.RequestTask.onPostExecute(RequestTask.java:1)
10-23 03:07:33.956: E/AndroidRuntime(22412): at android.os.AsyncTask.finish(AsyncTask.java:631)
10-23 03:07:33.956: E/AndroidRuntime(22412): at android.os.AsyncTask.access$600(AsyncTask.java:177)
10-23 03:07:33.956: E/AndroidRuntime(22412): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644)
10-23 03:07:33.956: E/AndroidRuntime(22412): at android.os.Handler.dispatchMessage(Handler.java:99)
10-23 03:07:33.956: E/AndroidRuntime(22412): at android.os.Looper.loop(Looper.java:137)
10-23 03:07:33.956: E/AndroidRuntime(22412): at android.app.ActivityThread.main(ActivityThread.java:5041)
10-23 03:07:33.956: E/AndroidRuntime(22412): at java.lang.reflect.Method.invokeNative(Native Method)
10-23 03:07:33.956: E/AndroidRuntime(22412): at java.lang.reflect.Method.invoke(Method.java:511)
10-23 03:07:33.956: E/AndroidRuntime(22412): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
10-23 03:07:33.956: E/AndroidRuntime(22412): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
10-23 03:07:33.956: E/AndroidRuntime(22412): at dalvik.system.NativeStart.main(Native Method)
The reason is you can only consume Content
from Entity
once.
You did it twice (maybe without you knowing it) in here
Reader reader = new InputStreamReader(response.getEntity().getContent());
and here
response.getEntity().writeTo(out);
I know this is sounds a little weird but actually the writeTo() function will get content from the entity to write to the OutputStream
. You can see it in the documentation here
Another workaround you can use is turning it to string and let GSON handle it
@Override
protected String doInBackground(String... uri) {
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response;
String responseString = null;
try {
response = httpclient.execute(new HttpGet(uri[0]));
StatusLine statusLine = response.getStatusLine();
if(statusLine.getStatusCode() == HttpStatus.SC_OK){
responseString = EntityUtils.toString(response.getEntity()); // content will be consume only once
Gson gson = new Gson();
Holder response1 = gson.fromJson(responseString, Holder.class);
} else{
//Closes the connection.
response.getEntity().getContent().close();
throw new IOException(statusLine.getReasonPhrase());
}
} catch (ClientProtocolException e) {
//TODO Handle problems..\
progressDialog.hide();
} catch (IOException e) {
//TODO Handle problems..
progressDialog.hide();
}
return responseString;
}
I hope my answer can help you!
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