我正在尝试使用以下代码读取控制台进程的全部内容(3秒后)：
Dim NewProcess As New System.Diagnostics.Process()
With NewProcess.StartInfo
.FileName = EXE_PATH
.RedirectStandardOutput = True
.RedirectStandardError = True
.RedirectStandardInput = True
.UseShellExecute = False
.WindowStyle = ProcessWindowStyle.Normal
.CreateNoWindow = False
End With
NewProcess.Start()
System.Threading.Thread.Sleep(3000)
MsgBox(NewProcess.StandardOutput.ReadToEnd)
但是,当尝试’ReadToEnd’时应用程序似乎暂停,我认为这是因为控制台进程是一个连续的输出,并且永远不会真正结束. ‘ReadLine’工作正常,但只获得第一行,但我需要在该阶段控制台的全部内容.
我怎么解决这个问题？
解决方法
我会尝试使用Process.OutputDataReceived事件来异步读取输出.
见：http://msdn.microsoft.com/en-us/library/system.diagnostics.process.outputdatareceived.aspx#Y242
Private Shared processOutput As StringBuilder = Nothing
Public Shared Sub StartSomeProcess()
processOutput = new StringBuilder()
Dim NewProcess As New System.Diagnostics.Process()
With NewProcess.StartInfo
.FileName = EXE_PATH
.RedirectStandardOutput = True
.RedirectStandardError = True
.RedirectStandardInput = True
.UseShellExecute = False
.WindowStyle = ProcessWindowStyle.Normal
.CreateNoWindow = False
End With
' Set our event handler to asynchronously read the sort output.
AddHandler NewProcess.OutputDataReceived,AddressOf OutputHandler
NewProcess.Start()
NewProcess.BeginOutputReadLine()
NewProcess.WaitForExit()
MsgBox(processOutput.ToString())
End Sub
Private Shared Sub OutputHandler(sendingProcess As Object,outLine As DataReceivedEventArgs)
' Collect the sort command output.
If Not String.IsNullOrEmpty(outLine.Data) Then
' Add the text to the collected output.
processOutput.AppendLine(outLine.Data)
End If
End Sub
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