SpringSecurity2 session超时跳转登陆界面

来源：互联网发布：学python工作后累不累编辑：程序博客网时间：2024/05/18 18:20

项目中权限系统使用的是Spring Security2.0，由于对session过期没有过多的支持(Spring Security3.0支持session超时的配置设置)，所以只能自己实现。简单的说，也就是通过过滤器拦截请求，判断session是否过期，如果过期跳转登陆界面，否则放行。具体实现如下：

1、web.xml中添加过滤器配置

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<!-- SessionTimeout filter -->
<filter>
    <filter-name>sessionTimeoutFilter</filter-name>
    <filter-class>com.ufida.icc.admin.interceptor.SessionTimeoutFilter</filter-class>
</filter>
 
<!-- SpringSecurity filter -->
<filter>
    <filter-name>springSecurityFilterChain</filter-name>
    <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
    <filter-name>sessionTimeoutFilter</filter-name>
    <url-pattern>/admin/work/*</url-pattern>
</filter-mapping>
<filter-mapping>
    <filter-name>springSecurityFilterChain</filter-name>
    <url-pattern>/admin/*</url-pattern>
</filter-mapping>

注意：处理session过期的SessionTimeout filter要放在权限系统SpringSecurity filter之前。

2、新建SessionTimeoutFilter类，实现Filter接口。

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packagecom.ufida.icc.admin.interceptor;
 
importjava.io.IOException;
importjava.io.PrintWriter;
 
importjavax.servlet.Filter;
importjavax.servlet.FilterChain;
importjavax.servlet.FilterConfig;
importjavax.servlet.ServletException;
importjavax.servlet.ServletRequest;
importjavax.servlet.ServletResponse;
importjavax.servlet.http.HttpServletRequest;
importjavax.servlet.http.HttpServletResponse;
importjavax.servlet.http.HttpSession;
 
publicclass SessionTimeoutFilter implementsFilter {
 
    publicvoid destroy() {
        // TODO Auto-generated method stub
 
    }
 
    publicvoid doFilter(ServletRequest request, ServletResponse response,
            FilterChain chain) throwsIOException, ServletException {
        HttpServletRequest httpRequest = (HttpServletRequest) request;
        HttpServletResponse httpResponse = (HttpServletResponse) response;
        HttpSession session = httpRequest.getSession();
        // 登陆url
        String loginUrl = httpRequest.getContextPath() + "/admin/login.jsp";
 
        String url = httpRequest.getRequestURI();
        String path = url.substring(url.lastIndexOf("/"));
        // 超时处理，ajax请求超时设置超时状态，页面请求超时则返回提示并重定向
        if(path.indexOf(".action") != -1
                && session.getAttribute("LOGIN_SUCCESS") == null) {
            // 判断是否为ajax请求
            if(httpRequest.getHeader("x-requested-with") != null
                    && httpRequest.getHeader("x-requested-with")
                            .equalsIgnoreCase("XMLHttpRequest")) {
                httpResponse.addHeader("sessionstatus","timeOut");
                httpResponse.addHeader("loginPath", loginUrl);
                chain.doFilter(request, response);// 不可少，否则请求会出错
            }else{
                String str = "<script language='javascript'>alert('会话过期,请重新登录');"
                        +"window.top.location.href='"
                        + loginUrl
                        +"';</script>";
                response.setContentType("text/html;charset=UTF-8");// 解决中文乱码
                try{
                    PrintWriter writer = response.getWriter();
                    writer.write(str);
                    writer.flush();
                    writer.close();
                }catch(Exception e) {
                    e.printStackTrace();
                }
            }
        }else{
            chain.doFilter(request, response);
        }
    }
 
    @Override
    publicvoid init(FilterConfig arg0) throwsServletException {
        // TODO Auto-generated method stub
 
    }
}

3、客户端JS，用于ajax请求session超时

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<script type="text/javascript">
$(document).ajaxComplete(function(event, xhr, settings) {  
    if(xhr.getResponseHeader("sessionstatus")=="timeOut"){ 
        if(xhr.getResponseHeader("loginPath")){
            alert("会话过期，请重新登陆!");
            window.location.replace(xhr.getResponseHeader("loginPath")); 
        }else{ 
            alert("请求超时请重新登陆 !"); 
        } 
    } 
}); 
</script>

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