java exec 參數如何設置

在Java中，可以使用Runtime.exec()方法或ProcessBuilder類來執行外部命令

1. 使用Runtime.exec()方法：

try {
    String command = "your_command_here"; // 例如: "notepad.exe" 或 "ipconfig"
    Process process = Runtime.getRuntime().exec(command);

    // 等待命令執行完成
    int exitCode = process.waitFor();
    System.out.println("Command executed with exit code: " + exitCode);
} catch (IOException e) {
    System.err.println("Error executing command: " + e.getMessage());
} catch (InterruptedException e) {
    System.err.println("Command execution was interrupted: " + e.getMessage());
}

2. 使用ProcessBuilder類：

try {
    List<String> command = new ArrayList<>();
    command.add("your_command_here"); // 例如: "notepad.exe" 或 "ipconfig"
    command.add("arg1"); // 添加參數，例如: "C:\\Users\\username\\Documents"
    command.add("arg2"); // 添加參數，例如: "example.txt"

    ProcessBuilder processBuilder = new ProcessBuilder(command);
    Process process = processBuilder.start();

    // 等待命令執行完成
    int exitCode = process.waitFor();
    System.out.println("Command executed with exit code: " + exitCode);
} catch (IOException e) {
    System.err.println("Error executing command: " + e.getMessage());
} catch (InterruptedException e) {
    System.err.println("Command execution was interrupted: " + e.getMessage());
}

在這兩個示例中，將your_command_here替換為您要執行的外部命令，將arg1和arg2替換為相應的參數。注意，參數之間用空格分隔。