想知道是否有人可以成功使用JDEdwards XMLInterop功能。我已经使用了一段时间(通过一个简单的PInvoke，将在以后发布代码)。我正在寻找是否有更好和/或者更健壮的方法。

谢谢。

解决方案

回答

如所承诺的，这是使用XML与JDEdewards集成的代码。这是一个网络服务，但可以根据需要使用。

namespace YourNameSpace

{

/// <summary>
/// This webservice allows you to submit JDE XML CallObject requests via a c# webservice
/// </summary>
[WebService(Namespace = "http://WebSite.com/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
public class JdeBFService : System.Web.Services.WebService
{
    private string _strServerName;
    private UInt16 _intServerPort;
    private Int16 _intServerTimeout;

    public JdeBFService()
    {
        // Load JDE ServerName, Port, & Connection Timeout from the Web.config file.
        _strServerName = ConfigurationManager.AppSettings["JdeServerName"];
        _intServerPort = Convert.ToUInt16(ConfigurationManager.AppSettings["JdePort"], CultureInfo.InvariantCulture);
        _intServerTimeout = Convert.ToInt16(ConfigurationManager.AppSettings["JdeTimeout"], CultureInfo.InvariantCulture);

    }

    /// <summary>
    /// This webmethod allows you to submit an XML formatted jdeRequest document
    /// that will call any Master Business Function referenced in the XML document
    /// and return a response.
    /// </summary>
    /// <param name="Xml"> The jdeRequest XML document </param>
    [WebMethod]
    public XmlDocument JdeXmlRequest(XmlDocument xmlInput)
    {
        try
        {
            string outputXml = string.Empty;
            outputXml = NativeMethods.JdeXmlRequest(xmlInput, _strServerName, _intServerPort, _intServerTimeout);

            XmlDocument outputXmlDoc = new XmlDocument();
            outputXmlDoc.LoadXml(outputXml);
            return outputXmlDoc;
        }
        catch (Exception ex)
        {
            ErrorReporting.SendEmail(ex);
            throw;
        }
    }
}

/// <summary>
/// This interop class uses pinvoke to call the JDE C++ dll.  It only has one static function.
/// </summary>
/// <remarks>
/// This class calls the xmlinterop.dll which can be found in the B9/system/bin32 directory.  
/// Copy the dll to the webservice project's /bin directory before running the project.
/// </remarks>
internal static class NativeMethods
{
    [DllImport("xmlinterop.dll",
        EntryPoint = "_jdeXMLRequest@20",
        CharSet = CharSet.Auto,
        ExactSpelling = false,
        CallingConvention = CallingConvention.StdCall,
        SetLastError = true)]
    private static extern IntPtr jdeXMLRequest([MarshalAs(UnmanagedType.LPWStr)] StringBuilder server, UInt16 port, Int32 timeout, [MarshalAs(UnmanagedType.LPStr)] StringBuilder buf, Int32 length);

    public static string JdeXmlRequest(XmlDocument xmlInput, string strServerName, UInt16 intPort, Int32 intTimeout)
    {
        StringBuilder sbServerName = new StringBuilder(strServerName);
        StringBuilder sbXML = new StringBuilder();
        XmlWriter xWriter = XmlWriter.Create(sbXML);
        xmlInput.WriteTo(xWriter);
        xWriter.Close();

        string result = Marshal.PtrToStringAnsi(jdeXMLRequest(sbServerName, intPort, intTimeout, sbXML, sbXML.Length));

        return result;
    }
}

}

我们必须向其发送如下消息：

<jdeRequest type='callmethod' user='USER' pwd='PWD' environment='ENV'>
  <callMethod name='GetEffectiveAddress' app='JdeWebRequest' runOnError='no'>
    <params>
      <param name='mnAddressNumber'>10000</param>
    </params>
  </callMethod>
</jdeRequest>

回答

看到此代码后，我将JDE Web服务更改为使用XML Interop，此后就没有任何稳定性问题。以前，我们使用的是COM连接器，该连接器经常出现通信故障(可能是连接池问题？)，并且很难正确安装和配置。

我们在尝试使用事务时确实遇到了问题，但是如果我们正在执行简单的单个业务功能调用，那么这应该不是问题。

更新：要详细说明事务问题，如果我们试图通过多个调用使事务保持活动状态，并且JDE应用程序服务器正在处理少量的并发调用，则xmlinterop调用会开始返回" XML响应失败"消息，并且数据库事务处于打开状态，无法提交或者回滚。可以通过调整内核数量来解决此问题，但就我个人而言，我总是尝试在单个调用中完成事务。