java – SOAP Envelope响应错误：读取XMLStreamReader时出错

我在下面有以下 Android应用程序代码.我正在尝试通过HTTP连接到Web服务. Web服务使用apache轴.但是我在响应中遇到错误“Error reading XMLStreamReader”.我真的被卡住了,不知道我能做些什么.可能是因为在服务器端和客户端使用了不同版本的HTTP客户端和SOAP？任何有关这方面的帮助将不胜感激. Web服务非常简单：sayHello方法显示arg0 = some_string中给出的参数

public class MainActivity extends Activity {
@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.activity_main,menu);
    return true;
}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
    StrictMode.setThreadPolicy(policy);

    BufferedReader in = null;
    try {
        HttpClient client = new DefaultHttpClient();
        HttpPost request = new HttpPost(
                "http://10.0.0.63:8080/archibus/cxf/HelloWorld/sayHello");
        request.addHeader("Content-Type","text/xml");
        List<NameValuePair> postParameters = new ArrayList<NameValuePair>();
        postParameters.add(new BasicNameValuePair("arg0","testing"));
        UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(postParameters);
        request.setEntity(formEntity);

        HttpResponse response = client.execute(request);

        in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
        StringBuffer sb = new StringBuffer("");
        String line = "";
        String NL = System.getProperty("line.separator");
        while ((line = in.readLine()) != null) {
            sb.append(line + NL);
        }
        in.close();

        String page = sb.toString();
        // Log.i(tag,page);
        System.out.println(page);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (in != null) {
            try {
                in.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}
}

RequestEntity requestEntity = new StringRequestEntity("<?xml version="1.0"?><soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope"><soap:Header></soap:Header><soap:Body><m:GetStockPrice xmlns:m="http://www.example.org/stock"><m:StockName>IBM</m:StockName></m:GetStockPrice></soap:Body></soap:Envelope>");
    post.setRequestEntity(requestEntity );