Open iAoe444 opened 4 years ago
// 无状态协议 public String noStateProtocol(String userName){ return String.format("%s 登陆成功", userName); } // 有状态协议:协议本身会帮你记录一些状态,比如用户状态 List<String> userList = new ArrayList<>(); public String haveStateProtocol(String userName){ if(userList.contains(userName)){ return String.format("%s 登陆过了", userName); } else{ userList.add(userName); return String.format("%s 登陆成功", userName); } }