android - 在 Android 中调用 .NET Web 服务时没有任何反应

Question

我在 .net 中开发了一个 web 服务，就在这里

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
// [System.Web.Script.Services.ScriptService]
public class DataManipulationService : System.Web.Services.WebService
{
    [WebMethod]
    public void InsertData()
    {
        SQLConnectionManager conn = new SQLConnectionManager();

        string qry = "INSERT INTO TEST_TABLE(Id, Name) VALUES(3, 'Ibbi')";

        SQLOperationManager op = new SQLOperationManager(qry);
        int rowsAffected = op.ExecuteQuery();
    }
}

我正在尝试从 android 中调用这个 web 方法，就像这样

public class WebDataManipulator {

private final String NAMESPACE = "http://tempuri.org/";
private final String URL = "http://localhost/DataManipulationService.asmx?WSDL";
private final String METHOD = "InsertData";
private final String SOAP_ACTION = "http://localhost/DataManipulationService.asmx?op=InsertData";

public void insertData() {
    SoapObject request = new SoapObject(NAMESPACE, METHOD);

    SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
    envelope.dotNet = true;
    envelope.setOutputSoapObject(request);

    System.out.println(request);
    HttpTransportSE androidHttp = new HttpTransportSE(URL);


    try {
        androidHttp.call(SOAP_ACTION, envelope);
    } catch(Exception ex) {
        ex.printStackTrace();
    }
}

我已经在 .net 中测试了我的 Web 服务并且它工作正常但是当我在 android 上运行它时没有发生任何事情.. 我没有得到任何异常也没有它的功能。为什么？这是我的日志

08-11 11:09:12.269: I/AndroidRuntime(325): NOTE: attach of thread 'Binder Thread #3' failed
08-11 11:09:13.179: I/System.out(333): InsertData{}
08-11 11:09:13.229: W/System.err(333): java.net.SocketException: Permission denied
08-11 11:09:13.239: W/System.err(333):  at org.apache.harmony.luni.platform.OSNetworkSystem.socket(Native Method)
08-11 11:09:13.239: W/System.err(333):  at dalvik.system.BlockGuard$WrappedNetworkSystem.socket(BlockGuard.java:335)
08-11 11:09:13.239: W/System.err(333):  at org.apache.harmony.luni.net.PlainSocketImpl.create(PlainSocketImpl.java:216)
08-11 11:09:13.249: W/System.err(333):  at java.net.Socket.checkOpenAndCreate(Socket.java:802)
08-11 11:09:13.249: W/System.err(333):  at java.net.Socket.connect(Socket.java:948)
08-11 11:09:13.249: W/System.err(333):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.<init>(HttpConnection.java:75)
08-11 11:09:13.249: W/System.err(333):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.<init>(HttpConnection.java:48)
08-11 11:09:13.249: W/System.err(333):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection$Address.connect(HttpConnection.java:322)
08-11 11:09:13.249: W/System.err(333):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnectionPool.get(HttpConnectionPool.java:89)
08-11 11:09:13.249: W/System.err(333):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getHttpConnection(HttpURLConnectionImpl.java:285)
08-11 11:09:13.249: W/System.err(333):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.makeConnection(HttpURLConnectionImpl.java:267)
08-11 11:09:13.249: W/System.err(333):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:205)
08-11 11:09:13.249: W/System.err(333):  at org.ksoap2.transport.ServiceConnectionSE.connect(ServiceConnectionSE.java:76)
08-11 11:09:13.249: W/System.err(333):  at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:146)
08-11 11:09:13.249: W/System.err(333):  at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:95)
08-11 11:09:13.249: W/System.err(333):  at com.automated.research.WebDataManipulator.insertData(WebDataManipulator.java:27)
08-11 11:09:13.259: W/System.err(333):  at com.automated.research.DataSender$1.run(DataSender.java:47)
08-11 11:09:13.259: I/System.out(333): connected

这就是我编写客户端代码的方式

if(isNetworkAvailable()) {
   WebDataManipulator webDM = new WebDataManipulator();
   webDM.insertData();
   System.out.println("connected");
}

Answer 1

webserviceurl 以“localhost”开头，从 android 的角度来看是 android 设备。将 localhost 替换为 android 设备可以看到的 ip 地址(即可以从 android 网络浏览器调用)