Question

我创建了一个Spring Boot项目，该项目在本地tomcat上运行（我打算将其部署到Web服务器上）。在该项目中，我创建了一个REST服务，该服务应执行一个.bat文件。

我的休息服务看起来像这样（都不起作用）

@RequestMapping(value = "/esc", method= RequestMethod.GET)
public String esc() throws IOException, InterruptedException {
      String folder = "P:\\Documents\\testcmd";
    String[] cmdarray = new String[]{"cmd -c","dosomething.cmd"};
    ProcessBuilder processBuilder = new ProcessBuilder( cmdarray );
    processBuilder.directory(new File(folder));
    Process process = processBuilder.start();

    int exitCode = -1;
    boolean finished = false;
    while ( !finished ) {
        exitCode = process.waitFor();
        finished = true;
    }
    return folder;
}

@RequestMapping(value = "/ex", method= RequestMethod.GET)
public String executeShellScript(){
    //final String shCmd = "/bin/bash -c helloworld.sh";
    System.out.println("Working Directory = " +
            System.getProperty("user.dir"));
    final String shCmd = "cmd -c P:/Documents/testcmd/dosomething.cmd";
    String output = executeCommand(shCmd);

    return output;
}
private String executeCommand(String command){
    Process p;
    InputStream in = null;
    String value = "";
    try {
        p = Runtime.getRuntime().exec(command);
        in = p.getInputStream();
        int ch;
        while((ch = in.read()) != -1) {
            value = String.valueOf((char)ch);
        }
    }catch (IOException e){
        e.printStackTrace();
    }
    return value;
}

我在processbuilder和运行时中尝试过。我要执行的文件在此文件夹中：“ P：\ Documents \ testcmd”

是否甚至可以使用tomcat服务器执行本地文件？

Answer 1

我解决了这个问题。使用Runtime.getRuntime().exec(command)的解决方案是正确的。只有我的系统调用是错误的。我不得不使用final String shCmd = "cmd -c P:/Documents/testcmd/dosomething.cmd";而不是"P:/Documents/testcmd/dosomething.cmd"。另外，我还必须更改dosomething.cmd，因为它是错误的。当执行普通的Java代码时，该文件将打开一个cmd终端，然后在一个无限循环中打印问候。我更改了文件内容，而不是在终端中无休止地循环，它将向所有文件打印问候。

// method is mapped on root/ex
@RequestMapping(value = "/ex", method= RequestMethod.GET)
public String executeShellScript(){
    System.out.println("Working Directory = " +
            System.getProperty("user.dir"));
    final String shCmd = "P:\\Documents\\testcmd\\dosomething.cmd -c";
    String output = executeCommand(shCmd);

    return output;
}

之前和之后的批处理文件

@echo off
:start
echo hallo
pause
goto start

之后

@echo off
@echo This is a test>> P:/Documents/testcmd/file.txt
@echo 123>> P:/Documents/testcmd/file.txt
@echo 245.67>> P:/Documents/testcmd/file.txt

Tomcat中的Java执行脚本

1 个答案: