我正在使用apache commons httpclient版本4.2来执行一个基于SOAP 1.2的简单Web服务。我能够通过SOAP UI正确地触发Web服务，但我无法使用Java执行相同的操作。
下面是我用来调用服务的方法（基于this answer乘kuester2000的超时代码）。

private static byte[] callSOAPServer(String body, String SOAP_ACTION,
        String SERVER_URL) {

    byte[] result = null;

    HttpParams httpParameters = new BasicHttpParams();
    // Set the timeout in milliseconds until a connection is established.
    int timeoutConnection = 15000;
    HttpConnectionParams.setConnectionTimeout(httpParameters,
            timeoutConnection);
    // Set the default socket timeout (SO_TIMEOUT)
    // in milliseconds which is the timeout for waiting for data.
    int timeoutSocket = 35000;
    HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);

    DefaultHttpClient httpclient = new DefaultHttpClient(httpParameters);

    /*
     * httpclient.getCredentialsProvider().setCredentials( new
     * AuthScope("os.icloud.com", 80, null, "Digest"), new
     * UsernamePasswordCredentials(username, password));
     */
    HttpPost httppost = new HttpPost(SERVER_URL);
    httppost.setHeader("soapaction", SOAP_ACTION);
    httppost.setHeader("Content-Type", "text/xml; charset=utf-8");

    System.out.println("executing request" + httppost.getRequestLine());
    // now create a soap request message as follows:
    final StringBuffer soap = new StringBuffer();
    soap.append("\n");
    soap.append("");
    // this is a sample data..you have create your own required data BEGIN
    soap.append(" \n");
    soap.append(" \n");
    soap.append("" + body);
    soap.append(" \n");
    soap.append(" \n");

    /* soap.append(body); */
    // END of MEssage Body
    soap.append("");
    System.out.println("SOAP Request : " + soap.toString());
    // END of full SOAP request message
    try {
        HttpEntity entity = new StringEntity(soap.toString(), HTTP.UTF_8);
        httppost.setEntity(entity);
        HttpResponse response = httpclient.execute(httppost);// calling
                                                                // server
        HttpEntity r_entity = response.getEntity(); // get response
        System.out.println("Reponse Header:Begin..."); // response headers
        System.out.println("Reponse Header StatusLine:"
                + response.getStatusLine());
        Header[] headers = response.getAllHeaders();
        for (Header h : headers) {
            System.out.println("Reponse Header " + h.getName() + ": "
                    + h.getValue());
        }
        System.out.println("Reponse Header END...");
        if (r_entity != null) {
            result = new byte[(int) r_entity.getContentLength()];
            if (r_entity.isStreaming()) {
                DataInputStream is = new DataInputStream(
                        r_entity.getContent());
                is.readFully(result);
            }
        }
    } catch (Exception E) {
        System.out.println("Exception While Connecting " + E.getMessage());
        E.printStackTrace();
    }

    httpclient.getConnectionManager().shutdown(); // shut down the
                                                    // connection
    return result;
}

下面是我的SOAP请求以及结束点。

String soapRequest = "<soap:Envelope xmlns:soap=\"http://www.w3.org/2003/05/soap-envelope\" xmlns:typ=\"http://skash.service.sahaj.com/types/\">"
            + "<soap:Header/>"
            + "<soap:Body>"
            + "<typ:remoteSKASHDeductionElement>"
            + "<typ:vleId>?</typ:vleId>"
            + "<typ:paidAmt>?</typ:paidAmt>"
            + "<typ:refTxnId>?</typ:refTxnId>"
            + "</typ:remoteSKASHDeductionElement>"
            + "</soap:Body>"
            + "</soap:Envelope>";
    String soapEndPoint = "http://xxx.xxx.xxx.xxx:xxxx/skashws/remoteSKASHDeductionSoap12HttpPort";
    String soapAction = "http://xxx.xxx.xxx.xxx:xxxx//remoteSKASHDeduction";
    // executeSOAPRequest(soapRequest, soapEndPoint, soapAction);
    byte[] resp = callSOAPServer(soapRequest, soapAction, soapEndPoint);
    System.out.println(IOUtils.toString(resp));

我可以看到设置为Envelope标记的名称空间是为SOAP 1.2设置的，并且设置得很好。我不确定哪里出错了。我收到以下版本不匹配错误。

<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
<env:Header>
    <env:Upgrade>
        <env:SupportedEnvelope xmlns:soap12="http://www.w3.org/2003/05/soap-envelope" qname="soap12:Envelope"/>
    </env:Upgrade>
</env:Header>
<env:Body>
    <env:Fault xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
        <faultcode>env:VersionMismatch</faultcode>
        <faultstring>Version Mismatch</faultstring>
        <faultactor>http://schemas.xmlsoap.org/soap/actor/next</faultactor>
    </env:Fault>
</env:Body>

</env:Envelope>