NetworkOnMainThreadException 做一个肥皂请求[重复]答案

【问题标题】：NetworkOnMainThreadException on doing a soap request [duplicate]NetworkOnMainThreadException 做一个肥皂请求[重复]
【发布时间】：2014-04-23 09:11:37
【问题描述】：

我正在尝试根据这个 WSDL 方案做一个肥皂请求：

http://pastebin.com/UT3t5XdQ

这是我的应用代码：

private final String SOAP_ACTION = "https://t4t.services.telenet.be/TelemeterService";
    private final String NAMESPACE = "http://www.telenet.be/TelemeterService/";
    private final String METHOD_NAME = "RetrieveUsageRequestType";
    private final String URL = "https://t4t.services.telenet.be/TelemeterService.wsdl";

    private Button sendButton;
    private TextView responseView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        sendButton = (Button) findViewById(R.id.send);
        responseView = (TextView) findViewById(R.id.response);

        sendButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

                //Parameters
                request.addProperty("UserId","test@telenet.be");
                request.addProperty("Password","test");

                //Version Soap
                SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);

                envelope.setOutputSoapObject(request);
                envelope.dotNet = true;

                try {
                    HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

                    //Call the webservice
                    androidHttpTransport.call(SOAP_ACTION, envelope);

                    // Get the result
                    SoapObject result = (SoapObject)envelope.bodyIn;

                    if(result != null)
                    {
                        Log.d("Debug","Result");
                        responseView.setText(result.getProperty(0).toString());
                    }
                    else
                    {
                        Toast.makeText(getApplicationContext(), "No Response", Toast.LENGTH_LONG).show();
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });

在我的清单中，我添加了互联网权限。

我遇到了这个异常：

04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ android.os.NetworkOnMainThreadException
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1145)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at java.net.InetAddress.lookupHostByName(InetAddress.java:385)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at java.net.InetAddress.getAllByName(InetAddress.java:214)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at com.android.okhttp.internal.Dns$1.getAllByName(Dns.java:28)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:216)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:122)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:292)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at com.android.okhttp.internal.http.HttpEngine.sendSocketRequest(HttpEngine.java:255)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:206)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:345)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at com.android.okhttp.internal.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:89)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at com.android.okhttp.internal.http.HttpURLConnectionImpl.getOutputStream(HttpURLConnectionImpl.java:197)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at com.android.okhttp.internal.http.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:254)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at org.ksoap2.transport.ServiceConnectionSE.openOutputStream(ServiceConnectionSE.java:126)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:185)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:118)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:113)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at test.example.com.MainActivity$1.onClick(MainActivity.java:54)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at android.view.View.performClick(View.java:4438)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at android.view.View$PerformClick.run(View.java:18422)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at android.os.Handler.handleCallback(Handler.java:733)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at android.os.Handler.dispatchMessage(Handler.java:95)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at android.os.Looper.loop(Looper.java:136)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at android.app.ActivityThread.main(ActivityThread.java:5017)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at java.lang.reflect.Method.invokeNative(Native Method)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at java.lang.reflect.Method.invoke(Method.java:515)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
04-23 09:05:57.933    1454-1454/test.example.com W/System.err﹕ at dalvik.system.NativeStart.main(Native Method)

【问题讨论】：

stackoverflow.com/questions/6343166/…

标签： android soap android-ksoap2

【解决方案1】：

当应用程序尝试在其主线程上执行网络操作时会引发此异常。在AsyncTask 中运行您的代码：

private class SetTreasureBoxAsyncTask extends AsyncTask<String, String, String>
            {

                @Override
                protected void onPreExecute() {
                    super.onPreExecute();
                }
                @Override
                protected String doInBackground(String... params) {

                     SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

                    //Parameters
                    request.addProperty("UserId","test@telenet.be");
                    request.addProperty("Password","test");

                    //Version Soap
                    SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);

                    envelope.setOutputSoapObject(request);
                    envelope.dotNet = true;

                    try {
                        HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

                        //Call the webservice
                        androidHttpTransport.call(SOAP_ACTION, envelope);

                        // Get the result
                        SoapObject result = (SoapObject)envelope.bodyIn;


                    } catch (Exception e) {
                        e.printStackTrace();
                    }

                    return result.toString() ;
                }

                @Override
                protected void onPostExecute(String result) {
                    super.onPostExecute(result);                
                     if(result != null)
                    {
                        Log.d("Debug","Result");
                        responseView.setText(result.getProperty(0).toString());
                    }
                    else
                    {
                        Toast.makeText(getApplicationContext(), "No Response", Toast.LENGTH_LONG).show();
                    }
                }

            }

在按钮单击中执行AsyncTask，如下所示，

sendButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
  new SetTreasureBoxAsyncTask().execute(); 
});

【讨论】：

【解决方案2】：

创建 Async 类并将你的肥皂请求代码放在 doinbackground() 方法中。并在按钮点击事件上执行你的异步类。

【讨论】：

【解决方案3】：

您可以从主线程访问网络功能。你需要启动一个外线程。

sendButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

        new Thread(){

            @Override
                public void run() {

            SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

            //Parameters
            request.addProperty("UserId","test@telenet.be");
            request.addProperty("Password","test");

            //Version Soap
            SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);

            envelope.setOutputSoapObject(request);
            envelope.dotNet = true;

            try {
                HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

                //Call the webservice
                androidHttpTransport.call(SOAP_ACTION, envelope);

                // Get the result
                SoapObject result = (SoapObject)envelope.bodyIn;

                if(result != null)
                {
                    Log.d("Debug","Result");
                    responseView.setText(result.getProperty(0).toString());
                }
                else
                {
                    Toast.makeText(getApplicationContext(), "No Response", Toast.LENGTH_LONG).show();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

        }}.start();
    });

您也可以使用 AsyncTask。

【讨论】：

【解决方案4】：

您不得在主线程上执行（可能）长时间运行的进程。所有网络操作必须在单独的后台线程中运行，否则它们会冻结 UI。这通常会使您的应用崩溃，因为它在 UI 冻结时没有响应。

查看Processes and Threads。你会发现AsyncTask在各种场合都非常好用。

【讨论】：

【解决方案5】：

试试这个..

class SoapConnection extends AsyncTask<String, Void, String> {

    protected String doInBackground(String... urls) {
        String values = "";
        SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

            //Parameters
            request.addProperty("UserId","test@telenet.be");
            request.addProperty("Password","test");

            //Version Soap
            SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);

            envelope.setOutputSoapObject(request);
            envelope.dotNet = true;

            try {
                HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

                //Call the webservice
                androidHttpTransport.call(SOAP_ACTION, envelope);

                // Get the result
                SoapObject result = (SoapObject)envelope.bodyIn;

                if(result != null)
                {
                    values = result.getProperty(0).toString();
                }
                else
                {
                    values = "No Response";
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
    }

    protected void onPostExecute(String result) {
            if(result.equlas("No Response"))
                  Toast.makeText(getApplicationContext(), "No Response", Toast.LENGTH_LONG).show();
            else
                  responseView.setText(result);
    }
}

这样称呼

sendButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                       new SoapConnection().execute();
            }
});

【讨论】：

【解决方案6】：

我解决了像 Spring Breaker 建议的问题。

private Button sendButton;
private TextView responseView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    sendButton = (Button) findViewById(R.id.send);
    responseView = (TextView) findViewById(R.id.response);

    sendButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            new SetTreasureBoxAsyncTask().execute();
        }

    });
}
private class SetTreasureBoxAsyncTask extends AsyncTask<String, String, String>
{
    SoapObject result = null;

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
    }
    @Override
    protected String doInBackground(String... params) {



        SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

        //Parameters
        request.addProperty("UserId","test@telenet.be");
        request.addProperty("Password","test");

        //Version Soap
        SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);

        envelope.setOutputSoapObject(request);
        envelope.dotNet = true;

        try {
            HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

            //Call the webservice
            androidHttpTransport.call(SOAP_ACTION, envelope);

            // Get the result
            result = (SoapObject)envelope.bodyIn;


        } catch (Exception e) {
            e.printStackTrace();
        }

        if(result != null)
            return result.toString();
        else
            return null;
    }

    @Override
    protected void onPostExecute(String res) {
        super.onPostExecute(res);
        if(result != null)
        {
            Log.d("Debug", "Result");
            responseView.setText(result.getProperty(0).toString());
        }
        else
        {
            Toast.makeText(getApplicationContext(), "No Response", Toast.LENGTH_LONG).show();
        }
    }

}

问题是任务花费了很长时间。

【讨论】：