你好,我克服了最初的问题。我是一个完全的androidnoob,这是我的第一个应用程序。我正在Android模拟器上对此进行测试。我尝试在处连接到.NET Web服务http://192.168.3.47/service.asmx。我得到一个FileNotFoundException。但是它在那里,URL是正确的。我怎样才能让他看到?
http://192.168.3.47/service.asmx
FileNotFoundException
03-03 11:23:49.741: WARN/System.err(455): java.io.FileNotFoundException: http://192.168.3.47/service.asmx 03-03 11:23:49.751: WARN/System.err(455): at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:521) 03-03 11:23:49.801: WARN/System.err(455): at gyozo.HelloWorld.HelloActivity.onClick(HelloActivity.java:62) 03-03 11:23:49.831: WARN/System.err(455): at android.view.View.performClick(View.java:2485) 03-03 11:23:49.851: WARN/System.err(455): at android.view.View$PerformClick.run(View.java:9080) 03-03 11:23:49.871: WARN/System.err(455): at android.os.Handler.handleCallback(Handler.java:587) 03-03 11:23:49.910: WARN/System.err(455): at android.os.Handler.dispatchMessage(Handler.java:92) 03-03 11:23:49.940: WARN/System.err(455): at android.os.Looper.loop(Looper.java:123) 03-03 11:23:49.950: WARN/System.err(455): at android.app.ActivityThread.main(ActivityThread.java:3683) 03-03 11:23:50.010: WARN/System.err(455): at java.lang.reflect.Method.invokeNative(Native Method) 03-03 11:23:50.050: WARN/System.err(455): at java.lang.reflect.Method.invoke(Method.java:507) 03-03 11:23:50.070: WARN/System.err(455): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 03-03 11:23:50.090: WARN/System.err(455): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 03-03 11:23:50.110: WARN/System.err(455): at dalvik.system.NativeStart.main(Native Method)
这发生在这里: InputStream is = connection.getInputStream();
InputStream is = connection.getInputStream();
URL url = new URL("http://192.168.3.47/service.asmx"); HttpURLConnection connection = (HttpURLConnection)url.openConnection(); connection.setRequestMethod("POST"); connection.setRequestProperty("Content-Type", "application/soap+xml; charset=utf-8"); connection.setUseCaches(false); connection.setDoInput(true); connection.setDoOutput(true); String soapRequest = String.format(getText(R.string.ws_listemain_ds_new).toString(), city, keyword); connection.setRequestProperty("Content-Length", Integer.toString(soapRequest.getBytes("UTF-8").length)); //Send request OutputStreamWriter owr = new OutputStreamWriter(connection.getOutputStream(), "UTF-8"); owr.write(soapRequest); owr.flush(); owr.close(); //Get Response InputStream is = connection.getInputStream();
的HttpURLConnection类是误导的,因为它会抛出FileNotFoundException为400或以上的任何HTTP错误代码。
HttpURLConnection
因此,它不一定是错误的URL(404),它可能是400(错误请求),403(禁止),500(内部服务器错误)或其他错误。
使用该getResponseCode方法可以更准确地指示问题。
getResponseCode