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Ext结合Struts的Session超时处理
博客分类： Ext
EXTStrutsAjaxUIJavaScript
配置struts.xml文件的默认拦截器(注:登录的action用<default-interceptor-ref name="defaultStack" />)

Xml代码 
<interceptors> 
     <interceptor name="loginInterceptor" class="com.fireinjava.ui.interceptor.LoginInterceptor" /> 
     <interceptor-stack name="myDefaultIntegerceptor"> 
           <interceptor-ref name="loginInterceptor" />   
           <interceptor-ref name="defaultStack" /> 
     </interceptor-stack> 
</interceptors> 
          
<default-interceptor-ref name="myDefaultIntegerceptor" /> 

<interceptors>
     <interceptor name="loginInterceptor" class="com.fireinjava.ui.interceptor.LoginInterceptor" />
     <interceptor-stack name="myDefaultIntegerceptor">
           <interceptor-ref name="loginInterceptor" />
           <interceptor-ref name="defaultStack" />
     </interceptor-stack>
</interceptors>

<default-interceptor-ref name="myDefaultIntegerceptor" />

拦截器LoginInterceptor.java

Java代码 
package com.fireinjava.ui.interceptor;  
 
import java.io.IOException;  
import java.io.PrintWriter;  
import java.util.Map;  
 
import javax.servlet.http.HttpServletResponse;  
 
import org.apache.struts2.ServletActionContext;  
 
import com.fireinjava.ui.UserEnv;  
import com.opensymphony.xwork2.Action;  
import com.opensymphony.xwork2.ActionContext;  
import com.opensymphony.xwork2.ActionInvocation;  
import com.opensymphony.xwork2.interceptor.AbstractInterceptor;  
 
/** 
* @version 1.0 
* @data 2009-9-23 
* @描述:检查Session是否超时 
*/ 
public class LoginInterceptor extends AbstractInterceptor {  
 
    @Override 
    public String intercept(ActionInvocation actioninvocation) throws Exception {  
        ActionContext context = actioninvocation.getInvocationContext();  
        Map session = context.getSession();  
        UserEnv user = (UserEnv) session.get("userEnv");  
        System.out.println(">>>>>>>>>>>>>LoginInterceptor");  
        if (user != null) {  
            return actioninvocation.invoke();  
        } else {  
            outString("<script type=\"text/javascript\">var session='SessionExpired'; function getRootWin(){var win = window;while (win != win.parent){win =win.parent;}return win;} getRootWin().reLogin();</script>");//页面接收  
        }  
        return Action.NONE; // 页面上写一个Login弹出窗口  
    }  
 
    public void outString(String str) {  
        HttpServletResponse response = ServletActionContext.getResponse();  
        try {  
            response.setHeader("Pragma", "No-cache");  
            response.setHeader("Cache-Control", "no-cache");  
            response.setDateHeader("Expires", 0);  
            response.setContentType("text/html;charset=gbk");  
            PrintWriter out = response.getWriter();  
            out.write(str);  
            out.flush();  
            out.close();  
        } catch (IOException e) {  
            e.printStackTrace();  
        }  
    }  
 
} 

package com.fireinjava.ui.interceptor;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Map;

import javax.servlet.http.HttpServletResponse;

import org.apache.struts2.ServletActionContext;

import com.fireinjava.ui.UserEnv;
import com.opensymphony.xwork2.Action;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.AbstractInterceptor;

/**
* @version 1.0
* @data 2009-9-23
* @描述:检查Session是否超时
*/
public class LoginInterceptor extends AbstractInterceptor {

@Override
public String intercept(ActionInvocation actioninvocation) throws Exception {
ActionContext context = actioninvocation.getInvocationContext();
Map session = context.getSession();
UserEnv user = (UserEnv) session.get("userEnv");
System.out.println(">>>>>>>>>>>>>LoginInterceptor");
if (user != null) {
return actioninvocation.invoke();
} else {
outString("<script type=\"text/javascript\">var session='SessionExpired'; function getRootWin(){var win = window;while (win != win.parent){win =win.parent;}return win;} getRootWin().reLogin();</script>");//页面接收
}
return Action.NONE; // 页面上写一个Login弹出窗口
}

public void outString(String str) {
HttpServletResponse response = ServletActionContext.getResponse();
try {
response.setHeader("Pragma", "No-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);
response.setContentType("text/html;charset=gbk");
PrintWriter out = response.getWriter();
out.write(str);
out.flush();
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}

} jsp 页面代码：

 

Js代码 
<script type="text/javascript">  
 
function getRootWin(){     
    var win = window;     
    while (win != win.parent){     
        win = win.parent;     
    }     
    return win;     
}     
 
var reLoginWin;  
 
reLogin = function (){ getRootWin().reLoginWin=new Ext.Window(....);}//登录窗口  
 
Ext.Ajax.on('requestcomplete', function(conn, response, options, e){  var returnVal=response.responseText;  if(!Ext.isEmpty(returnVal)&&returnVal.indexOf('SessionExpired')!=-1)   reLogin();});  
 
</script> 

<script type="text/javascript">

function getRootWin(){  
    var win = window;  
    while (win != win.parent){  
        win = win.parent;  
    }  
    return win;  
}  

var reLoginWin;

reLogin = function (){ getRootWin().reLoginWin=new Ext.Window(....);}//登录窗口

Ext.Ajax.on('requestcomplete', function(conn, response, options, e){  var returnVal=response.responseText;  if(!Ext.isEmpty(returnVal)&&returnVal.indexOf('SessionExpired')!=-1)   reLogin();});

</script>


 

嵌入外部页面时，保持本应用的Session激活

function keepSession(){
     Ext.Ajax.request({url : 'keepSession.action'});
}
setInterval("keepSession()",60000);//1分钟调用下



<action name="keepSession" class="com.xx.BaseAction" method="keepSession"/>

public void keepSession(){

}

评论

1 楼 oo_key 2012-08-13  

好乱的代码呀，要看好久才看明白，可读性太差了。且还没试过你的代码。