服务挂断在WaitForExit调用批处理文件后，

问题描述

我有，有时调用批处理文件的服务。该批处理文件需要5-10秒来执行：

I have a service that sometimes calls a batch file. The batch file takes 5-10 seconds to execute:

System.Diagnostics.Process proc = new System.Diagnostics.Process(); // Declare New Process
    proc.StartInfo.FileName = fileName;
    proc.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
    proc.StartInfo.CreateNoWindow = true;
    proc.Start();
    proc.WaitForExit();

该文件不存在和code，当我运行相同的code。在控制台的工作。然而，当它运行的服务里面，它挂断在 WaitForExit（）。我要杀死来自过程的批处理​​文件，才能继续。 （我确信该文件存在，因为我能看到它在进程列表中。）

The file does exist and the code works when I run the same code in-console. However when it runs inside the service, it hangs up at WaitForExit(). I have to kill the batch file from the Process in order to continue. (I am certain the file exists, as I can see it in the processes list.)

我怎样才能解决这个挂机？

How can I fix this hang-up?

凯文code可以让我得到的输出。我的一个批处理文件仍然挂。

Kevin's code allows me to get output. One of my batch files is still hanging.

C：\ EnterpriseDB公司\ Postgres的\ 8.3 \ BIN \ pg_dump.exe-i -h本地主机-p 5432 -U的Postgres -F p -a -D -v -fC：\ backupcasecocher \ backupdateevent2008.sql -t\公开\，\dateevent \DbTest

另一个批处理文件是：

C：\ EnterpriseDB公司\ Postgres的\ 8.3 \ BIN \ vacuumdb.exe-U Postgres的-d DbTest

我检查了路径和 PostgreSQL的路径是罚款。输出目录确实存在，外服仍然有效。任何想法？

I have checked the path and the postgresql path is fine. The output directory does exist and still works outside the service. Any ideas?

相反的批处理文件的路径，我写的C：\ EnterpriseDB公司\ Postgres的\ 8.3 \ BIN \ pg_dump.exe为 proc.StartInfo.FileName 和添加的所有参数 proc.StartInfo.Arguments 。结果是不变的，但我看到了 pg_dump.exe 过程窗口。同样，这只是发生在服务中。

Instead of the path of the batch file, I wrote the "C:\EnterpriseDB\Postgres\8.3\bin\pg_dump.exe" for the proc.StartInfo.FileName and added all parameters to proc.StartInfo.Arguments. The results are unchanged, but I see the pg_dump.exe in the process window. Again this only happens inside the service.

我已经运行的管理员组中的用户，都无济于事的服务。我恢复了空该服务的用户名和密码

I have run the service with a user in the administrator group, to no avail. I restored null for the service's username and password

我创建了一个简单的服务写一个跟踪事件日志，并执行包含目录中有一个批处理文件。现在将挂在 proc.Start（）; - 我试图改变帐户从本地系统到用户，然后我设置admnistrator用户名和密码，仍然一无所获。

I created a simple service to write a trace in the event log and execute a batch file that contains "dir" in it. It will now hang at proc.Start(); - I tried changing the Account from LocalSystem to User and I set the admnistrator user and password, still nothing.

推荐答案

下面是我用它来执行批处理文件：

Here is what i use to execute batch files:

proc.StartInfo.FileName                 = target;
proc.StartInfo.RedirectStandardError    = true;
proc.StartInfo.RedirectStandardOutput   = true;
proc.StartInfo.UseShellExecute          = false;

proc.Start();

proc.WaitForExit
    (
        (timeout <= 0)
            ? int.MaxValue : timeout * NO_MILLISECONDS_IN_A_SECOND *
                NO_SECONDS_IN_A_MINUTE
    );

errorMessage = proc.StandardError.ReadToEnd();
proc.WaitForExit();

outputMessage = proc.StandardOutput.ReadToEnd();
proc.WaitForExit();

我不知道这是否会做的伎俩你，但我没有它挂的问题。

I don't know if that will do the trick for you, but I don't have the problem of it hanging.

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