apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/entity/bo/UserInfo.java/UserInfo/equals
class UserInfo:  @Override
  public boolean equals(Object o) {
    if (o instanceof UserInfo) {

      if (o == this){
        return true;
      }

      UserInfo anotherUser = (UserInfo) o;
      return userId.equals(anotherUser.userId);
    }
    return false;

  }