實(shí)現(xiàn)需求：
1.用戶未登錄，跳轉(zhuǎn)到登錄頁，登錄完成后會(huì)跳到初始訪問頁。
2.用戶自定義處理（如需要激活），跳轉(zhuǎn)到激活頁面，激活完成后會(huì)跳到初始訪問頁。
使用到的框架
springmvc 的攔截器
實(shí)現(xiàn)：
1.編寫攔截器通過session保存初始訪問的頁面地址，便于后面回跳這個(gè)頁面做準(zhǔn)備。
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import org.slf4j.logger;import org.slf4j.loggerfactory;import org.springframework.web.servlet.handlerinterceptor;import org.springframework.web.servlet.modelandview;import javax.servlet.http.httpservletrequest;import javax.servlet.http.httpservletresponse;import javax.servlet.http.httpsession;/** * 用戶登錄以后跳轉(zhuǎn)回之前頁面的攔截器 攔截對(duì)象： 除登錄，注冊之外的所有跳轉(zhuǎn)頁面的請求 因?yàn)橛脩綦S時(shí)可能進(jìn)行登錄操作 * * @version 1.0.0 * @date 2018 -10-19 */public class forwardbeforeurlinteceptor implements handlerinterceptor { private logger logger = loggerfactory.getlogger(this.getclass()); @override public void aftercompletion(httpservletrequest arg0, httpservletresponse arg1, object arg2, exception arg3) throws exception { } @override public void posthandle(httpservletrequest arg0, httpservletresponse arg1, object arg2, modelandview arg3) throws exception { } @override public boolean prehandle(httpservletrequest request, httpservletresponse response, object arg2) throws exception { // 過濾掉ajax請求 if (request.getheader("x-requested-with") != null && request.getheader("x-requested-with").equalsignorecase("xmlhttprequest")) { return true; } // 獲取當(dāng)前會(huì)話 httpsession session = request.getsession(true); // 拿到上一個(gè)頁面地址 string uri = request.getrequesturi(); // 去掉項(xiàng)目地址長度的字符（因?yàn)槲业哪J(rèn)項(xiàng)目地址是給出的） string path = uri.substring(request.getcontextpath().length()); // 得到參數(shù) string query = request.getquerystring(); if (query == null) { query = ""; } else { query = "?" + query; } string beforepath = path + query; session.setattribute("beforepath", beforepath); session.setattribute("method", request.getmethod()); logger.debug("beforepath :{}, method:{}", beforepath, request.getmethod()); return true; }} |
2.在spring的xml配置文件中配置攔截器，例如application.xml
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<mvc:interceptors> <!-- 使用bean定義一個(gè)interceptor，直接定義在mvc:interceptors根下面的interceptor將攔截所有的請求 --> <!-- 配置用于跳回登錄之前的頁面的攔截器--> <mvc:interceptor> <!-- 進(jìn)行攔截：/**表示攔截所有url及其子路徑 --> <mvc:mapping path="/**" /> <!-- ajax請求的action不進(jìn)行攔截 --> <mvc:exclude-mapping path="/*.ajax" /> <mvc:exclude-mapping path="/resources/**" /> <mvc:exclude-mapping path="/activation" /> <bean class="com.xxx.xxx.xxx.interceptor.forwardbeforeurlinteceptor" /> </mvc:interceptor> </mvc:interceptors> |
注意：<mvc:exclude-mapping path="/activation" /> 此處是界面可以直接進(jìn)入激活頁面，此處是排除攔截激活頁面，防止頁面出現(xiàn)不停的回跳到自己頁面。
3.自定義過濾器。
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import javax.servlet.servletrequest;import javax.servlet.servletresponse;import javax.servlet.http.httpservletrequest;import javax.servlet.http.httpservletresponse;import java.io.ioexception;/** * 課程攔截器,當(dāng)會(huì)員過期或未激活時(shí)自動(dòng)跳轉(zhuǎn)到激活頁面 * * @version 1.0.0 * @date 2018 -10-19 */public class memberfilter extends com.bwjf.framework.shiro.filter.userfilter { @override protected boolean isaccessallowed(servletrequest request, servletresponse response, object mappedvalue) { httpservletresponse httpservletresponse = (httpservletresponse) response; httpservletrequest httpservletrequest = (httpservletrequest) request; if (httpservletrequest.getrequesturi().indexof("activation") > 0) { return true; } myshirouser myshirouser = myuserutil.getcurrentshirouser(); if (!checkemptyutil.isempty(myshirouser) && checkemptyutil.isempty(myshirouser.getactivedate())) { try { // 瀏覽器跳轉(zhuǎn)到激活頁面 httpservletresponse.sendredirect(httpservletrequest.getcontextpath() + "/activation"); } catch (ioexception e) { e.printstacktrace(); } } return true; }} |
4.shiro.xml配置自定義過濾器
5.controller激活處理后跳轉(zhuǎn)到初始頁面
總結(jié)
以上所述是小編給大家介紹的springmvc+shiro自定義過濾器的實(shí)現(xiàn)代碼，希望對(duì)大家有所幫助，如果大家有任何疑問請給我留言，小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對(duì)服務(wù)器之家網(wǎng)站的支持！
原文鏈接：https://blog.csdn.net/hu582205/article/details/83501402
