如何使用一些参数从Java调用.exe文件

我需要调用cowsay.exe（这个程序使用符号 绘制动物）并执行命令：cowsay“hello”。如何将“hello”作为参数传递

public class cowsay {
    public static void main(String[] args) throws IOException {
        Process process = new ProcessBuilder("D:\\cowsay.exe","cowsay Hello").start();
        InputStream is = process.getInputStream();
        InputStreamReader isr = new InputStreamReader(is);
        BufferedReader br = new BufferedReader(isr);
        String line;
        while ((line = br.readLine()) != null) {
            System.out.println(line);
        }
    }

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您可以使用java.lang.Runtime类：

public class cowsay {
    public static void main(String[] args) throws IOException {
        Process process = 
                Runtime.getRuntime().exec("cowsay hello");
        InputStream is = process.getInputStream();
        InputStreamReader isr = new InputStreamReader(is);
        BufferedReader br = new BufferedReader(isr);
        String line;
        while ((line = br.readLine()) != null) {
            System.out.println(line);
        }
    }
}

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正如Fungucide指出的，您可以使用RunTime类。但是，我建议您使用将参数作为数组接受的方法。 示例代码：

public static void main(String[] args)  {
  Try{
     String[] command={"D:\\cowsay.exe","cowsay","Hello"};
            Runtime.getRuntime().exec(command);
    }catch(Exception e){System.out.println(e.getMessage());}
}

这是如果您想将“cowsay”作为参数。如果您只想将“hello”作为参数，请执行以下操作：

public static void main(String[] args)  {
  Try{
     String[] command={"D:\\cowsay.exe","Hello"};
            Runtime.getRuntime().exec(command);
    }catch(Exception e){System.out.println(e.getMessage());}
}

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上面的代码正在执行命令D:\cowsay.exe“cowsay hello”。