logonaction.java

java电子相册一般网页里面实现图片切换的这个电子相册的代码

/* ====================================================================
 * $Id$
 * ====================================================================
 *  文件名    LogonAction.java
 *  机能名    
 *  履历      2005-1-28 dlxu 创建新文件  
 *           Copyright 2004 东南大学 All Rights Reserved
 * ====================================================================
 */
package cn.edu.seu.album.web;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.log4j.Category;
import org.apache.log4j.Logger;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessages;

import cn.edu.seu.album.common.PJAction;
import cn.edu.seu.album.common.PJActionForm;
import cn.edu.seu.album.common.PJBizBroker;
import cn.edu.seu.album.common.PJConst;
import cn.edu.seu.album.common.PJException;
import cn.edu.seu.album.common.StringUtil;
import cn.edu.seu.album.model.LogonCondition;
import cn.edu.seu.album.model.LogonResult;
import cn.edu.seu.album.model.SessionBean;
import cn.edu.seu.album.pojo.Person;

/**
 * <p> [概 要] </p>
 * <p> [详 细] </p>
 * <p> [备 考] 无。</p>
 *
 * @author dlxu
 * @version 1.0 2005-1-28
 * @since 1.0
 */
public final class LogonAction extends PJAction {

    /**
     * 日志定义。
     */
    private static final Category log = Logger.getInstance(LogonAction.class);

    private static final String ACTION_LOGON = "logon";

    private static final String FORWARD_MAIN = "main";

    /**
     * <p> [概 要] </p>
     * <p> [详 细] </p>
     * <p> [备 考] 无。</p>
     * @param mapping
     * @param form
     * @param request
     * @param response
     * @return
     * @throws PJException
     * @see cn.edu.seu.album.common.PJAction#doAction(org.apache.struts.action.ActionMapping, org.apache.struts.action.ActionForm, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
     */
    protected ActionForward doAction(ActionMapping mapping, PJActionForm aForm,
            HttpServletRequest request, HttpServletResponse response,
            ActionMessages errs) throws PJException {
        log.debug("doAction开始");
        LogonForm form = (LogonForm) aForm;
        String actionType = form.getActionType();

        ActionForward af = mapping.getInputForward();
        if (ACTION_INIT.equals(actionType)) {

        } else if (ACTION_LOGON.equals(actionType)) {
            LogonResult rslt = doLogon(form, request, errs);
            if (errs.isEmpty()) {
                Person person = rslt.getUser();
                SessionBean sb = new SessionBean();
                sb.setPerson(person);
                HttpSession session = request.getSession(true);
                session.setAttribute(PJConst.SESSION_BEAN_KEY, sb);
                af = mapping.findForward(FORWARD_MAIN);
            }
        } else {
            throw new PJException(PJConst.ACTION_TYPE_ERR);
        }

        log.debug("doAction结束");
        return af;
    }

    /**
     * <p> [概 要] </p>
     * <p> [详 细] </p>
     * <p> [备 考] 无。</p>
     * @param form
     * @param request
     * @param errs
     * @return
     */
    private LogonResult doLogon(LogonForm form, HttpServletRequest request,
            ActionMessages errs) throws PJException {
        log.debug("doLogon开始");
        // 用户名
        String userName = StringUtil.safeTrim(form.getUserName());
        // 密码
        String password = StringUtil.safeTrim(form.getPassword());

        form.setUserName(userName);
        form.setPassword(password);

        LogonCondition cond = new LogonCondition();
        cond.setUserName(userName);
        cond.setPassword(password);

        LogonResult rslt = (LogonResult) PJBizBroker.invoke("LogonBiz", cond,
                errs, request);
        log.debug("doLogon结束");
        return rslt;
    }

}