在Java / Eclipse中运行批处理（shell / CMD）命令的最佳方法？

Question

I have created the following code below in Eclipse / java which executes a batch file, which in turn should also execute once all my TestNG tests have executed but sometimes the bat file will execute and sometimes it dosnt do anything at all, any ideas?

@AfterSuite(alwaysRun = true) 
public void executeBatFile() {
    try {
        List cmdAndArgs = Arrays.asList("cmd", "/c", "copyPasteImgs.bat");
        File dir = new File(Paths.get(System.getProperty("user.dir") + "/..").toRealPath() + "\\");
        ProcessBuilder pb = new ProcessBuilder(cmdAndArgs);
        pb.directory(dir);
        Process p = pb.start();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

The batch files moves files from a local folder to a remote folder (When the batch file hasnt worked via eclipse or invoked via jenkins I have manually executed the batch file and it did its jobs, very weird...)

thanks for your help

Answer 1

Apache Commons CLI provides functionalities to handle using command line from java. You can also use the exit value to have an idea about what is going on with your command. For example:

String command = "dir";
CommandLine oCmdLine = CommandLine.parse(command);
        DefaultExecutor oDefaultExecutor = new DefaultExecutor();
        oDefaultExecutor.setExitValue(0);
        try {
            int iExitValue = oDefaultExecutor.execute(oCmdLine);
        } catch (ExecuteException e) {
            System.err.println("Execution failed.");
            e.printStackTrace();
        } catch (IOException e) {
            System.err.println("permission denied.");
            e.printStackTrace();
        }