springMVC 获取request 处理全局session业务

"http://blog.csdn.net/is_zhoufeng/article/details/7559756" style="color: rgb(0, 0, 0); text-decoration: none; font-family: 'Microsoft YaHei'; font-size: 20px; line-height: 30px; ">springMVC中得到request对象，session对象

RequestAttributes ra = RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = ((ServletRequestAttributes)ra).getRequest();
        request.getSession().setAttribute(name, webuser);

(1)web.xml

 
        30
 

注：30指分钟

也可以让所有的Control继承一个BaseControl类 ，BaseControl类的定义为：

package com.jrgy.web.controller;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

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

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import com.jrgy.pojo.domain.FriendlyLink;
import com.jrgy.pojo.domain.ItemInfo;
import com.jrgy.pojo.domain.WebUser;
import com.jrgy.util.CacheManager;
import com.jrgy.util.Constants;
import com.jrgy.web.service.IAssociationManager;
import com.jrgy.web.service.IWebIndexManager;
import com.jrgy.web.service.IWebItemInfoManager;

public class BaseController implements Serializable{

    private static final long serialVersionUID = 8695834026800952113L;

    /**
     * ʵ���
     * */


//
//  HttpServletRequest request = ((ServletRequestAttributes)RequestContextHolder
//          .getRequestAttributes()).getRequest();



    CacheManager cacheManager = CacheManager.getInstance();
    @Autowired
    IWebIndexManager webIndexManager;
    @Autowired
    IWebItemInfoManager webItemInfoManager;
    @Autowired
    IAssociationManager webAssociationManager;
    /**
     * 导航栏
     * */
    List listitemInfo = new ArrayList();

    /**
     * 友情链接
     * */
    List friendLyLinkLs = new ArrayList();


    List itmeCode = new ArrayList();
    Map map = new HashMap();

    /**
     * ��ȡ�������
     * @param Object ����Ķ���
     * @param String KEY ֵ
     * @return Object
     * @throws Exception
     */
    public Object getCache(Object object, String key) {
        Object cacheDate = cacheManager.get(key);
        if (cacheDate != null) {
            object = cacheDate;
        }
        return object;
    }

    /**
     *
     * @param key
     * @param Object
     * @return void
     * @throws Exception
     */
    public void addCache(String key, Object object) {
        cacheManager.delCacheByKey(key);
        cacheManager.add(key, object);
    }

    public void addSessionWebUser(String name,WebUser webuser) {
        RequestAttributes ra = RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = ((ServletRequestAttributes)ra).getRequest();
        request.getSession().setAttribute(name, webuser);

    }
    public Object getWebUserAttribute(String name) {
        // TODO Auto-generated method stub
        RequestAttributes ra = RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = ((ServletRequestAttributes)ra).getRequest();
        Object obj=null;
        if (!name.trim().equals("")) {
            obj= request.getSession().getAttribute(name);
        }

        return obj;
    }
}

这样 ，每个Control就能够方便的得到Servlet API 中的对象了。

 登陆保存用户到session

@RequestMapping("/islogin.do")
    public void islogin(HttpServletRequest request, HttpServletResponse response){
        String sessionId = request.getSession().getId();
        response.setContentType("text/html;charset=utf-8");
        String userName = request.getParameter("userName");
        String passWord = request.getParameter("userPassWord");
        WebUser webuser=new WebUser();
        String Msg = null;
        try {
        if(!StrUtil.checkStr(userName)){
            Msg="2";
        }else if(!StrUtil.checkStr(passWord)){
            Msg="3";
        }
        else{

                webuser=mainWebUserManager.userLogin(userName,passWord);
                if (webuser!=null) {
                    if(Constants.webUserStruts.equals(webuser.getWebUserType())){
                        Msg = "5";
                    }else{
                        Msg = "1";
                        addSessionWebUser(Constants.LOGIN_WebUSER,webuser);
                            log.debug(userName+"");
                    }
                }
                else{
                    Msg = "4";
                }
        }
        PrintWriter out = response.getWriter();
        String outMsg = "{Msg:"+Msg+"}";
        out.print(outMsg);
        out.flush();
        out.close();
        } catch (Exception e) {
        e.printStackTrace();
        }

    }

在需要使用session以下代码：

              String name=Constants.LOGIN_WebUSER;
WebUser web=(WebUser) getWebUserAttribute(name);
if (web!=null) {
    currentUser=web.getWebUserName();

}