public static void main(String[] args) {
    if (args.length != 2) {
      return;
    }
    String s1 = args[0];
    String s2 = args[1];
    System.out.println("s1: " + s1);
    System.out.println("s2: " + s2);

  }

1、不带空格的情况

 2、带空格的情况，需要用双引号将该参数包围

 3、带空格，同时含双引号

 处理代码

            String param1 = "1 1";
            // 处理参数
            param1 = "\"" + param1.replace("\"","\\\"") + "\"";

示例

    public static void main(String[] args) {
        try {
            String param1 = "1 \"1";
            System.out.println(param1);
            param1 = "\"" + param1.replace("\"","\\\"") + "\"";
            String param2 = "2 \"2";
            System.out.println(param2);
            param2 = "\"" + param2.replace("\"","\\\"") + "\"";
            String jarPath = "D:\\xxl.jar";//jar包路径
            String command = "java -jar " + jarPath + " " + param1 + " " + param2;
            Process exec = Runtime.getRuntime().exec(command);
            // printMessage(exec.getInputStream());
            // printMessage(exec.getErrorStream());
            int exit = exec.waitFor();//等待外部命令执行完毕，然后返回执行的结果
            exec.destroy();
            //按照约定，非零状态码表示异常终止。
            if (exit == 0) {
                System.out.println("正常完成");
            } else {
                System.out.println("异常结束");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

参考：

java 处理带空格的参数args_args 将空格作为参数一部分_小饼干超人的博客-CSDN博客