OutputDataReceived事件在Windows Server 2008中从未触发(在Win7中很好)

Question

我有一个奇怪的问题，似乎无法诊断。

我正在调用外部二进制文件，等待它完成，然后根据标准输出返回一个结果。我还想注销错误。

我写了这篇文章，它在Windows7 中起作用

namespace MyApp
{
    class MyClass
    {
        public static int TIMEOUT = 600000;
        private StringBuilder netOutput = null;
        private StringBuilder netError = null;
        public ResultClass runProcess()
        {
            using (Process process = new Process())
            {
                process.StartInfo.FileName = ConfigurationManager.AppSettings["ExeLocation"];
                process.StartInfo.WorkingDirectory = Path.GetDirectoryName(ConfigurationManager.AppSettings["ExeLocation"]);
                process.StartInfo.UseShellExecute = false;
                process.StartInfo.RedirectStandardOutput = true;
                process.OutputDataReceived += new DataReceivedEventHandler(NetOutputDataHandler);
                netOutput = new StringBuilder();
                process.StartInfo.RedirectStandardError = true;
                process.ErrorDataReceived += new DataReceivedEventHandler(NetErrorDataHandler);
                netError = new StringBuilder();
                process.Start();
                process.BeginOutputReadLine();
                process.BeginErrorReadLine();

                if (process.WaitForExit(TIMEOUT))
                {
                    // Process completed handle result
                    //return my ResultClass object
                }
                else
                {
                    //timed out throw exception
                }
            }

        }
        private void NetOutputDataHandler(object sendingProcess,
              DataReceivedEventArgs outLine)
        {
            //this is being called in Windows 7 but never in Windows Server 2008
            if (!String.IsNullOrEmpty(outLine.Data))
            {
                netOutput.Append(outLine.Data);
            }
        }
        private void NetErrorDataHandler(object sendingProcess,
            DataReceivedEventArgs outLine)
        {
            //this is being called in Windows 7 but never in Windows Server 2008
            if (!String.IsNullOrEmpty(outLine.Data))
            {
                netError.Append(outLine.Data);
            }
        }

    }
}

所以我把它安装在WindowsServer2008的一个盒子上，NetOutputDataHandler和NetErrorDataHandler处理程序永远不会被调用。

该应用程序是为.NET v4编译的。

你知道我做错了什么吗？

Answer 1

您可能需要检查代码访问安全策略。您可以首先使用运行应用程序的-u[ser]的caspol.exe的-l参数运行caspol.exe。

不要忘记检查您在以管理员身份运行应用程序时是否仍然遇到相同的问题