黑莓Httpconnection post到.net Webservice在设备上不工作



我正在开发一个应用程序,使用httpconnection来获取一些数据到。net Webservice。当我在本地托管web服务并使用Eclipse模拟器进行测试时,代码工作正常,但是当我在公共部署服务器上托管web服务并将黑莓应用程序打包到我的设备时,我得到的只是响应代码500。请有人给我一个线索,一个答案或一个解决方案,什么可能会导致这种情况?

下面是我使用的代码:
String URL = WebServiceURL+"/Login"+getConnectionParameter();
public static String getConnectionParameter() {
    String ConnectionParameter ="" ;
    if (WLANInfo.getWLANState() == WLANInfo.WLAN_STATE_CONNECTED) {
        // Connected to a WiFi access point
        ConnectionParameter = ";interface=wifi";
    } else {
        int coverageStatus = CoverageInfo.getCoverageStatus();
        ServiceRecord record = getWAP2ServiceRecord();
        if (record != null && (coverageStatus & CoverageInfo.COVERAGE_DIRECT) == CoverageInfo.COVERAGE_DIRECT) {
            // Have network coverage and a WAP 2.0 service book record
            ConnectionParameter = ";deviceside=true;ConnectionUID="+ record.getUid();
        } else if ((coverageStatus & CoverageInfo.COVERAGE_MDS) == CoverageInfo.COVERAGE_MDS) {
            // Have an MDS service book and network coverage
            ConnectionParameter = ";deviceside=false";
        } else if ((coverageStatus & CoverageInfo.COVERAGE_DIRECT) == CoverageInfo.COVERAGE_DIRECT) {
            // Have network coverage but no WAP 2.0 service book record
            ConnectionParameter = ";deviceside=true";
        }
    }
    return ConnectionParameter;
}
URLEncodedPostData oPostData = new URLEncodedPostData(
                URLEncodedPostData.DEFAULT_CHARSET, false);
                oPostData.append("username",username.getText());
                oPostData.append("compressedpicture",HomeScreen.convertByteArrayToString(imageArray));
                oPostData.append("email",email.getText());
                oPostData.append("password",password.getText());
                oPostData.append("pin",pin.getText());
                oPostData.append("extension",extension);
                String URL = MYAPP.WebServiceURL+"/SignUp"+MYAPP.getConnectionParameter();
                String result = HomeScreen.postinfo(URL,oPostData);
                Dialog.inform(result);
                if(result.indexOf("success")!= -1){
                    Dialog.inform("You Have just sign up. Congratulations.");
                }else{
                    Dialog.inform("There is an issue registering you"); 
                }


public static String postinfo(String _URL,URLEncodedPostData _PostData) {
    String result = "";
    try {
        HttpConnection conn = (HttpConnection) Connector.open(_URL,
                Connector.READ_WRITE);
        if (_PostData != null) {
            conn.setRequestMethod(HttpConnection.POST);
            conn.setRequestProperty("Content-type",
                    "application/x-www-form-urlencoded");
            conn.setRequestProperty("Content-Length",
                    Integer.toString(_PostData.size()));
            OutputStream strmOut = conn.openOutputStream();
            strmOut.write(_PostData.getBytes());
            strmOut.close();
        } else {
            conn.setRequestMethod(HttpConnection.GET);
        }
        int responseCode = conn.getResponseCode();
        if (responseCode == HttpConnection.HTTP_OK) {
            InputStream data = conn.openInputStream();
            StringBuffer raw = new StringBuffer();
            byte[] buf = new byte[4096];
            int nRead = data.read(buf);
            while (nRead > 0) {
                raw.append(new String(buf, 0, nRead));
                nRead = data.read(buf);
            }
            result = raw.toString();
            //Dialog.alert("Result:" + raw.toString());
            //_Dest.updateDestination(raw.toString());
        } else {
            _Dest.updateDestination("responseCode="
                    + Integer.toString(responseCode));
            result = "responseCode= "+ Integer.toString(responseCode);
        }
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        //_Dest.updateDestination("Exception:" + e.toString());
        result = "Exception:" + e.toString();
    }
    return result;
}

首先,不要使用这样的标志,因为它们有时会给出奇怪的结果。检查连接类型的方法是通过CoverageInfo类:

CoverageInfo.isCoverageSufficient(CoverageInfo.COVERAGE_BIS_B);
CoverageInfo.isCoverageSufficient(CoverageInfo.COVERAGE_MDS);
//...

第二,我认为你应该检查URL后缀(在你的代码中命名为ConnectionParameter,顺便说一下这个名字不遵循Java命名约定)在设备上正确初始化,因为我认为你错过了一些选项(如BIS和其他很少使用的WAP和APN选项)。这可能会给你一个提示,让你知道问题在哪里。

要检查代码是否有问题,你可以在黑莓浏览器中输入URL,看看结果是否相同。

最后,HTTP 500是一个服务器错误,所以问题也可能与服务器有关。

更新:除非你是为旧设备编程,你应该使用ConnectionFactory类来为你处理url和后缀。

谢谢大家的建议。我很感激他们。我发现我的生产服务器抛出内部服务器错误500,因为/WebserviceMethod在我的URL的末尾,例如

String URL = WebServiceURL+"**/Login**"+getConnectionParameter();

我找到了一个使用KSOAP2的解决方案。它运行得非常好。尽管您可能需要编写一些代码行来处理解析后的响应格式(KSOAP2返回解析后的响应XML格式)。

我相信你会发现这个链接的文章很有用:KSoap Android Web Service教程与示例代码

适用于大多数基于J2ME的移动平台。

再次感谢大家的时间和帮助。

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