Question

我目前正在使用Java制作firefox插件开发GUI工具。但是，在尝试输出.bat文件时，我陷入困境。

当我使用java运行.bat文件时，我可以看到输出，但是在bat文件中有3个命令。当第一个命令执行时，我可以同时获得输出。但是当它执行第二个命令输出时没有来。当.bat文件存在时，我得到的所有输出都没有同时出现。

我在执行时立即获得输出：

call "C:\mozilla-build\addon-sdk-1.16\bin\activate.bat

但是我没有同时获得以下命令的输出：

call cfx run

但我知道它正在执行，因为firefox窗口会弹出。执行proc.destroy();

时，我突然收到所有输出

这是我的蝙蝠档案：

@echo off
call  %1
cd C:\Users\Madhawa.se\Desktop\workingfox\beauty
call cfx run
pause

这是我的Java代码：

Thread t = new Thread(new Runnable() {

    @Override
    public void run() {
        try {
            Runtime rt = Runtime.getRuntime();

            String[] commands = {"C:\\Users\\Madhawa.se\\Desktop\\workingfox\\runner\\foxrun.bat", "C:\\mozilla-build\\addon-sdk-1.16\\bin\\activate.bat"};

            proc = rt.exec(commands);

            BufferedReader stdInput = new BufferedReader(new InputStreamReader(proc.getInputStream()));

            BufferedReader stdError = new BufferedReader(new InputStreamReader(proc.getErrorStream()));

            // read the output from the command

            String s = null;
            while ((s = stdInput.readLine()) != null) {
                System.out.println(s);
            }

            // read any errors from the attempted command
            while ((s = stdError.readLine()) != null) {
                System.out.println(s);
            }
            proc.waitFor();
            System.out.println("success");
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
});
t.start();

如何立即获得输出以及为什么它对此命令的作用不同？

Answer 1

我能够使用process builder代替runtime.exec进行修复。inheriteIo无法正常工作。阻止实时输出

Thread t = new Thread(new Runnable() {
    private String s;

    @Override
    public void run() {
        try {

            Component selectedComponent = jTabbedPane2.getSelectedComponent();
            if (selectedComponent instanceof MyTextArea) {
                String response = "";
                System.out.println("yes");
                MyTextArea temptextarea = (MyTextArea) selectedComponent;
                String xpiPath = new File(temptextarea.getNameX()).getParentFile().getPath();

                String[] commands = {"C:\\Users\\Madhawa.se\\Desktop\\workingfox\\runner\\foxrun.bat", "C:\\mozilla-build\\addon-sdk-1.16\\bin\\activate.bat

                ProcessBuilder process = new ProcessBuilder(commands);
                process.redirectErrorStream(true);

                Process shell = process.start();

                //shell.waitFor();
                BufferedReader stdInput = new BufferedReader(new InputStreamReader(shell.getInputStream()));
                BufferedReader stdError = new BufferedReader(new InputStreamReader(shell.getErrorStream()));

                // read the output from the command
                System.out.println("Here is the standard output of the command:\n");
                while ((s = stdInput.readLine()) != null) {
                    System.out.println("s:" + s);
                }

                // read any errors from the attempted command
                System.out.println("Here is the standard error of the command (if any):\n");
                while ((s = stdError.readLine()) != null) {
                    System.out.println("w:" + s);
                }
            }

        } catch (Exception ex) {
            ex.printStackTrace();
        }

Runtime.getRuntime无法在同一时间获得输出但稍后

1 个答案: