我正在尝试通过visual studio将Android用户的登录凭据发送到在我的本地主机上运行的C＃Web服务。我使用KSOAP2进行SOAP通信，并希望将登录信息发送到Web服务并在UI中打印。我使用过Asynctask，但我在这里发布了以下错误。
ksoap 2 communication - sending the asynctask result to UI thread and print
有人可以在我出错的地方帮忙吗?????
public class MainActivity extends Activity {
EditText un,pw;
TextView tv;
Button test;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button test=(Button) findViewById(R.id.login);
un = (EditText) findViewById(R.id.et_un);
pw = (EditText) findViewById(R.id.et_pw);
test.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
final String NAMESPACE = "http://sparking.org/login";
final String METHOD_NAME = "login";
final String SOAP_ACTION = "http://sparking.org/login";
final String URL = "http://localhost:63734/service.asmx";
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet = true;
envelope.setOutputSoapObject(request);
HttpTransportSE transport = new HttpTransportSE(URL);
try {
transport.call(SOAP_ACTION, envelope);
SoapPrimitive resultstring = (SoapPrimitive)envelope.getResponse();
}
catch (Exception e)
{
e.printStackTrace();
}
}
});
}
}
错误信息：
04-30 05:15:09.215: D/gralloc_goldfish(2997): Emulator without GPU emulation detected.
04-30 05:15:29.105: W/System.err(2997): android.os.NetworkOnMainThreadException
04-30 05:15:29.115: W/System.err(2997): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117)
04-30 05:15:29.115: W/System.err(2997): at java.net.InetAddress.lookupHostByName(InetAddress.java:385)
04-30 05:15:29.115: W/System.err(2997): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
04-30 05:15:29.125: W/System.err(2997): at java.net.InetAddress.getAllByName(InetAddress.java:214)
04-30 05:15:29.125: W/System.err(2997): at libcore.net.http.HttpConnection.<init>(HttpConnection.java:70)
04-30 05:15:29.135: W/System.err(2997): at libcore.net.http.HttpConnection.<init>(HttpConnection.java:50)
04-30 05:15:29.135: W/System.err(2997): at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:340)
04-30 05:15:29.135: W/System.err(2997): at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:87)
04-30 05:15:29.135: W/System.err(2997): at libcore.net.http.HttpConnection.connect(HttpConnection.java:128)
04-30 05:15:29.135: W/System.err(2997): at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:316)
04-30 05:15:29.135: W/System.err(2997): at libcore.net.http.HttpEngine.connect(HttpEngine.java:311)
04-30 05:15:29.155: W/System.err(2997): at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:290)
04-30 05:15:29.155: W/System.err(2997): at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:240)
04-30 05:15:29.165: W/System.err(2997): at libcore.net.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:81)
04-30 05:15:29.165: W/System.err(2997): at org.ksoap2.transport.ServiceConnectionSE.connect(ServiceConnectionSE.java:46)
04-30 05:15:29.175: W/System.err(2997): at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:68)
04-30 05:15:29.175: W/System.err(2997): at com.example.cmpe220.MainActivity$1.onClick(MainActivity.java:73)
04-30 05:15:29.185: W/System.err(2997): at android.view.View.performClick(View.java:4204)
04-30 05:15:29.195: W/System.err(2997): at android.view.View$PerformClick.run(View.java:17355)
04-30 05:15:29.205: W/System.err(2997): at android.os.Handler.handleCallback(Handler.java:725)
04-30 05:15:29.215: W/System.err(2997): at android.os.Handler.dispatchMessage(Handler.java:92)
04-30 05:15:29.215: W/System.err(2997): at android.os.Looper.loop(Looper.java:137)
04-30 05:15:29.225: W/System.err(2997): at android.app.ActivityThread.main(ActivityThread.java:5041)
04-30 05:15:29.225: W/System.err(2997): at java.lang.reflect.Method.invokeNative(Native Method)
04-30 05:15:29.235: W/System.err(2997): at java.lang.reflect.Method.invoke(Method.java:511)
04-30 05:15:29.235: W/System.err(2997): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
04-30 05:15:29.249: W/System.err(2997): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
04-30 05:15:29.249: W/System.err(2997): at dalvik.system.NativeStart.main(Native Method)
04-30 05:17:04.375: D/dalvikvm(2997): GC_CONCURRENT freed 175K, 12% free 2579K/2900K, paused 76ms+8ms, total 229ms
清单：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.cmpe220"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="14" />
<permission android:name="android.permission.INTERNET"></permission>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.220.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
答案 0 :(得分：0)
我想您的OnClickListener方法存在问题，请尝试此操作。
public class MainActivity extends Activity {
EditText un,pw;
TextView tv;
Button test;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button test=(Button) findViewById(R.id.login);
un = (EditText) findViewById(R.id.et_un);
pw = (EditText) findViewById(R.id.et_pw);
test.setOnClickListener(new OnClickListener(){
public void onClick(View v) {
final String NAMESPACE = "http://sparking.org/login";
final String METHOD_NAME = "login";
final String SOAP_ACTION = "http://sparking.org/login";
final String URL = "http://localhost:63734/service.asmx";
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet = true;
envelope.setOutputSoapObject(request);
HttpTransportSE transport = new HttpTransportSE(URL);
try {
transport.call(SOAP_ACTION, envelope);
SoapPrimitive resultstring = (SoapPrimitive)envelope.getResponse();
}
catch (Exception e)
{
e.printStackTrace();
}
}
});
}
}
答案 1 :(得分：0)
当您尝试通过主线程中的http进行通信时，该错误就会出现。
在声明'request'对象之前添加这两行：
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
答案 2 :(得分：0)
实际上，localhost是模拟器本身，因为代码在模拟器中运行。所以你应该连接到10.0.2.2。有关详细信息，请参阅 Android Emulator Networking并且不要忘记清单文件中的网络权限