设置session的过期时间,长时间(例如30分钟)无请求就会自动清除,达到长时间无操作自动退出的目的
server: port: 9201 session: timeout: 1800
实现思路:每次请求后台时,在拦截器中刷新session,设置session时间为30分钟,这样请求每次进来都会重新设置session的过期时间
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
/**
* 全局session拦截器
*
* @author shenyanwei
* @date:2016年11月18日 下午1:33:40
* @version
*/
public class SessionFilter implements Filter {
/*
* (non-Javadoc)
*
* @see javax.servlet.Filter#destroy()
*/
@Override
public void destroy() {
}
/*
* (non-Javadoc)
*
* @see javax.servlet.Filter#doFilter(javax.servlet.ServletRequest,
* javax.servlet.ServletResponse, javax.servlet.FilterChain)
*/
@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain filterChain) throws IOException, ServletException {
HttpServletRequest httpRequest = (HttpServletRequest) request;
// 如果不为'鉴定是否锁定的请求',将用户的请求时间放置session
if (!httpRequest.getServletPath().equals(
"/session/checkLastPostTime.action")) {
HttpSession session = httpRequest.getSession(true);
session.setAttribute("lastPostTime", System.currentTimeMillis());
}
// 执行之后的过滤
filterChain.doFilter(request, response);
}
/*
* (non-Javadoc)
*
* @see javax.servlet.Filter#init(javax.servlet.FilterConfig)
*/
@Override
public void init(FilterConfig arg0) throws ServletException {
}
}
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN"
"http://struts.apache.org/dtds/struts-2.1.7.dtd">
<struts>
<!-- 全局session处理action -->
<package name="session" namespace="/session" extends="json-default">
<action name="*" class="sessionAction" method="{1}">
<result name="json" type="json">
<param name="contentType">text/html</param>
<param name="ignoreHierarchy">false</param>
</result>
</action>
</package>
</struts>Action：
import javax.servlet.http.HttpSession;
import org.apache.struts2.ServletActionContext;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
/**
* 全局session处理action
*
* @author shenyanwei
* @date:2016年11月18日 下午1:59:56
* @version
*/
@Controller
@Scope("prototype")
@SuppressWarnings("all")
public class SessionAction extends ActionSupport {
/**
* 鉴权用户停止操作的时间是否超过20分钟
*
* @return
*/
public String checkLastPostTime() {
HttpSession session = ServletActionContext.getRequest().getSession();
Object attribute = session.getAttribute("lastPostTime");
ActionContext.getContext().getValueStack().push(false);
if (null != attribute) {
Long lastPostTime = (Long) attribute;
long currentTimeMillis = System.currentTimeMillis();
if (1200000 <= (currentTimeMillis - lastPostTime)) {
ActionContext.getContext().getValueStack().push(true);
}
}
return ReturnType.JSON;
}
}$(function() {
checkLastPostTime();
});
var checkLastPostTimeInterval;
function checkLastPostTime(){
checkLastPostTimeInterval = window.setInterval(function() {
$.post("${pageContext.request.contextPath}/session/checkLastPostTime.action",{},
function(result){
if (result) {
window.clearInterval(checkLastPostTimeInterval);
$("#checkLastPostTimeDialogError").html(" ");
$("#checkLastPostTimeDialog").dialog('open');
}
}
,"json");
}, 300000);
}
function checkLastPostTimeDialogFormSumbit(){
if($('#checkLastPostTimeDialogForm').form('validate')){
$.post("${pageContext.request.contextPath}/jsonLogin.action",{
username:$("#checkLastPostTimeDialogFormUserName").val(),
password:$("#checkLastPostTimeDialogFormPassword").textbox('getValue')
},
function(result){
if (result.errorMsg) {
$("#checkLastPostTimeDialogError").html(result.errorMsg);
} else {
$("#checkLastPostTimeDialog").dialog('close');
checkLastPostTime();
}
}
,"json");
}
}<div id="checkLastPostTimeDialog" class="easyui-dialog" style="width:400px;height:200px;padding:20px;" data-options="title:'已锁定',border:false,closable:false,draggable:false,resizable:false,closed:true,modal:true,tools:'#checkLastPostTimeDialogTool'"> <form id="checkLastPostTimeDialogForm" method="post"> <div id="checkLastPostTimeDialogError" style="color:red;position:absolute;right:20px;" align="right" ></div> <table width="100%" > <tr> <td >账 号:</td> <td height="40px" align="left"><shiro:principal /><input id="checkLastPostTimeDialogFormUserName" type="hidden" style="width:220px;height:30px;line-height:30px;border-color:#5b97db;border-width: 1px;border-style: solid;" name="username" value="<shiro:principal />" /></td> </tr> <tr> <td >密 码:</td> <td height="40px" align="left"><input id="checkLastPostTimeDialogFormPassword" required="true" class="easyui-textbox" type="password" style="width:220px;height:30px;line-height:30px;border-color:#5b97db;border-width: 1px;border-style: solid;" name="password" value="" /></td> </tr> <tr> <td colspan="2" align="center"> <input class="login" type="button" οnclick="checkLastPostTimeDialogFormSumbit();" style="width:110px;height:33px;border:0" value="" /> </td> </tr> </table> </form> </div> <div id="checkLastPostTimeDialogTool"> <a href="#" style="width:30px;text-decoration:underline;line-height:16px;font-size:12px;" οnclick="logout();" >注销</a> </div>
以上为个人经验，希望能给大家一个参考，也希望大家多多支持。
