public String admin_add_do() {
   System.out.print(
       "即将进入管理员添加:户名"
           + a_username
           + "  真实名字"
           + a_name
           + "  权限"
           + a_super
           + "  密码"
           + a_password
           + "\n");
   h.setA_name(a_name);
   h.setA_username(a_username);
   h.setA_super(a_super);
   h.setA_password(a_password);
   adminservice.add(h);
   return "add_success";
 }