loginhandler.java

一个非常好的FRAMWRK!是一个外国组织做的!不!

/**
 * Copyright 2003-2005 the original author or authors.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

package com.jdon.security.web;

import javax.servlet.http.HttpServletRequest;
import com.jdon.controller.model.Model;


/**

 * 该Sample需要两个落实：
 * 1. userPrincipal需要有具体实现
 * 2. getUserModelAfterLogin其实返回是UserModel
 *
 * <p>Copyright: Jdon.com Copyright (c) 2003</p>
 * <p></p>
 * @author banq
 * @version 1.0
 */

public class LoginHandler {


  //将当前用户登陆后的UserModel实例放入HttpSession
    private  AbstractUserPrincipal userPrincipal;
//    private static UserPrincipal userPrincipal = new UserPrincipalImp();

  public LoginHandler(AbstractUserPrincipal userPrincipal){
    this.userPrincipal = userPrincipal;

  }



  /**
   * 获得登陆后的User相关信息
   * 本方法必须在上面login执行后，或者用户通过j_security_check登陆后才可有效
   * 首先从HttpSession中查询，HttpSession中资料是由getUserFromPrincipal
   * 第一次执行生成的。
   *
   * @param request
   * @return　UserModel
   */
  public  Model getUserModelAfterLogin(HttpServletRequest request) {
    Model model = userPrincipal.getUserFromSession(request);
    if (model == null)
     model = userPrincipal.getUserFromPrincipal(request);
    return model;
  }


  public AbstractUserPrincipal getUserPrincipal() {
    return userPrincipal;
  }
  public void setUserPrincipal(AbstractUserPrincipal userPrincipal) {
    this.userPrincipal = userPrincipal;
  }

}