我在c＃中执行.bat文件时无法获取输出

Question

I'm trying to call .bat file from c#. my project name is here's the code MaestroStart, and the batch file has the same name. they are both at the same directory.

   private void button1_Click(object sender, EventArgs e)
        {
            Process p = new Process();  
            p.StartInfo.UseShellExecute = false;
            p.StartInfo.RedirectStandardOutput = true;            
            p.StartInfo.RedirectStandardError = true;
            p.StartInfo.CreateNoWindow = true;
            p.StartInfo.FileName = @"C:\Program Files (x86)\mbmteks\Maestro\MaestroStart.bat";
            p.StartInfo.WorkingDirectory = @"C:\Program Files (x86)\mbmteks\Maestro\MaestroStart\MaestroStart\bin\Debug";
            p.Start();

            //string output = p.StandardError.ReadToEnd();
            string output = p.StandardOutput.ReadToEnd();
            textBox2.Text = output;


            p.WaitForExit();

        }

but this is the only output that I'm getting : ("JAVA_HOME does not point at a JDK or JRE. Either set the JAVA_HOME environment variable or specify a JDK for your IDEA project."). If the use this statement

string output = p.StandardError.ReadToEnd();

I got nothing on the screen.

I tried to reset the Jave-Home environment variable to all the directories that I'm working with, but nothing changes.

this is the code of the batch file:

@echo off
setlocal

Set JAVA_HOME=.\jre

if exist "%JAVA_HOME%\bin\java.exe" goto JavaFound
echo "JAVA_HOME does not point at a JDK or JRE.  Either set the JAVA_HOME environment variable or specify a JDK for your IDEA project."
goto End

:JavaFound
if exist "start.jar" goto StartJarFound
echo "start.jar was not found.  Check your Jetty installation or your app path."
goto End

:StartJarFound
%JAVA_HOME%\bin\java.exe -jar start.jar

:End

this is the output of the batch file when I run it directly:

WARNING: System properties and/or JVM args set. Consider using --dry-run or --e xec 2014-03-11 13:35:51.964:INFO:oejs.Server:jetty-8.1.12.v20130726 2014-03-11 13:35:51.998:INFO:oejdp.ScanningAppProvider:Deployment monitor C:\\Pro gram Files (x86)\\mbmteks\\Maestro\\webapps at interval 1 2014-03-11 13:35:52.010:INFO:oejd.DeploymentManager:Deployable added: C:\\Program Files (x86)\\mbmteks\\Maestro\\webapps\\ROOT log4j:WARN No such property [maxFileSize] in org.apache.log4j.DailyRollingFileAp pender. log4j:WARN No such property [maxBackupIndex] in org.apache.log4j.DailyRollingFil eAppender. 2014-03-11 13:36:00.540:INFO:ROOT:Initializing Spring root WebApplicationContext

2014-03-11 13:36:03.274:INFO:ROOT:Initializing Spring FrameworkServlet 'springDi spatcher' 2014-03-11 13:36:03.647:INFO:oejdp.ScanningAppProvider:Deployment monitor C:\\Pro gram Files (x86)\\mbmteks\\Maestro\\contexts at interval 1 2014-03-11 13:36:03.671:INFO:oejs.AbstractConnector:Started SelectChannelConnect or@0.0.0.0:9999

Is my workingdirectory correct? I mean, it should be the directory of my current project ??

Answer 1

 //to excute bat file in java 
Runtime runtime = Runtime.getRuntime();
    try {
        Process p1 = runtime.exec("cmd /c GO.BAT", null, new File("D:\\Documents and        Settings\\Administrator\\Desktop\\bat"));
          InputStream is = p1.getInputStream();
     int i = 0;
        while( (i = is.read() ) != -1) {
           System.out.print((char)i);
        }
   } catch(IOException ioException) {
        System.out.println(ioException.getMessage() );
    }