在这里，我正在尝试使用一项 Web 服务。我正在尝试将来自该 Web 服务的 json 数据显示到 android 的 listview 中？但我在我的 logcat 上遇到错误，如下所示
日志猫
03-18 18:11:51.830: I/System.out(296): Transparent 17170445
03-18 18:11:51.990: W/System.err(296): java.net.SocketException: Permission denied
03-18 18:11:52.000: W/System.err(296): at org.apache.harmony.luni.platform.OSNetworkSystem.createStreamSocketImpl(Native Method)
03-18 18:11:52.000: W/System.err(296): at org.apache.harmony.luni.platform.OSNetworkSystem.createStreamSocket(OSNetworkSystem.java:186)
03-18 18:11:52.000: W/System.err(296): at org.apache.harmony.luni.net.PlainSocketImpl.create(PlainSocketImpl.java:265)
03-18 18:11:52.000: W/System.err(296): at java.net.Socket.checkClosedAndCreate(Socket.java:873)
03-18 18:11:52.010: W/System.err(296): at java.net.Socket.connect(Socket.java:1020)
03-18 18:11:52.010: W/System.err(296): at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.<init>(HttpConnection.java:62)
03-18 18:11:52.010: W/System.err(296): at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnectionPool.get(HttpConnectionPool.java:88)
03-18 18:11:52.010: W/System.err(296): at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getHTTPConnection(HttpURLConnectionImpl.java:927)
03-18 18:11:52.010: W/System.err(296): at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:909)
03-18 18:11:52.010: W/System.err(296): at org.ksoap2.transport.ServiceConnectionSE.connect(ServiceConnectionSE.java:76)
03-18 18:11:52.010: W/System.err(296): at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:146)
03-18 18:11:52.010: W/System.err(296): at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:95)
03-18 18:11:52.010: W/System.err(296): at com.example.png.StationsListActivity.callService(StationsListActivity.java:97)
03-18 18:11:52.010: W/System.err(296): at com.example.png.StationsListActivity$3.run(StationsListActivity.java:78)
03-18 18:11:52.429: D/AndroidRuntime(296): Shutting down VM
03-18 18:11:52.429: W/dalvikvm(296): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
03-18 18:11:52.449: E/AndroidRuntime(296): FATAL EXCEPTION: main
03-18 18:11:52.449: E/AndroidRuntime(296): java.lang.NullPointerException
03-18 18:11:52.449: E/AndroidRuntime(296): at com.example.png.StationsListActivity$1.handleMessage(StationsListActivity.java:43)
03-18 18:11:52.449: E/AndroidRuntime(296): at android.os.Handler.dispatchMessage(Handler.java:99)
03-18 18:11:52.449: E/AndroidRuntime(296): at android.os.Looper.loop(Looper.java:123)
03-18 18:11:52.449: E/AndroidRuntime(296): at android.app.ActivityThread.main(ActivityThread.java:4627)
03-18 18:11:52.449: E/AndroidRuntime(296): at java.lang.reflect.Method.invokeNative(Native Method)
3-18 18:11:52.449: E/AndroidRuntime(296): at java.lang.reflect.Method.invoke(Method.java:521)
03-18 18:11:52.449: E/AndroidRuntime(296): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
03-18 18:11:52.449: E/AndroidRuntime(296): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
03-18 18:11:52.449: E/AndroidRuntime(296): at dalvik.system.NativeStart.main(Native Method)
感谢您宝贵的时间！..