添加自定义注解
package org.book.configuration.aop; import java.lang.annotation.*; @Documented @Target(ElementType.METHOD) @Retention(RetentionPolicy.RUNTIME) public @interface NoCheckLogin { }
创建一个SpringMvcHandler 类,继承HandlerInterceptorAdapter
package org.book.configuration.Handler; import com.alibaba.fastjson.JSONObject; import lombok.extern.slf4j.Slf4j; import org.book.common.JsonResult; import org.book.configuration.aop.NoCheckLogin; import org.springframework.web.method.HandlerMethod; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.handler.HandlerInterceptorAdapter; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.PrintWriter; import java.lang.reflect.Method; @Slf4j public class SpringMvcHandler extends HandlerInterceptorAdapter { public void afterCompletion(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, Exception arg3) throws Exception { } public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, ModelAndView arg3) throws Exception { } public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { HandlerMethod hm = null; Method method = null; if(handler instanceof HandlerMethod) { hm = (HandlerMethod) handler; method = hm.getMethod();// 获取方法 } else { return true; } // 该方法是否添加 允许未登录访问注解 if (method !=null && method.isAnnotationPresent(NoCheckLogin.class)) { // 不拦截 return true; } String name = (String) request.getSession().getAttribute("user"); if (name != null) { return true; } else { response.setCharacterEncoding("UTF-8"); response.setContentType("application/json; charset=utf-8"); PrintWriter out = null; try { out = response.getWriter(); out.append(new JSONObject().toJSONString(JsonResult.renderFail("用户未登录")) ); }catch (Exception e){ out = response.getWriter(); out.append(new JSONObject().toJSONString(JsonResult.renderError("后台出错"))); log.info(e.getStackTrace().toString()); } return false; } } }
被@NoLoginCheck注解的方法不会被拦截在springmvc配置文件配置拦截路径和排除路径
<mvc:interceptors> <mvc:interceptor> <mvc:mapping path="/**"/> <mvc:mapping path="/"/> <mvc:mapping path="/index.jsp"/> <mvc:exclude-mapping path="/assets/**"/> <mvc:exclude-mapping path="/images/**"/> <bean class="org.book.configuration.Handler.SpringMvcHandler"></bean> </mvc:interceptor> </mvc:interceptors>
1)预处理preHandle()方法
用户发送请求时,先执行preHandle()方法。会先按照顺序执行所有拦截器的preHandle方法,一直遇到return false为止,比如第二个preHandle方法是return false,则第三个以及以后所有拦截器都不会执行。若都是return true,则执行用户请求的url方法。
2)后处理postHandle()
方法调用了Service并返回ModelAndView,但未进行页面渲染,可以在这里继续修改ModelAndView
3)返回处理afterCompletion()
方法已经渲染了页面,在afterCompletion中,可以根据ex是否为null判断是否发生了异常,进行日志记录。注:一般使用preHandle这个拦截器进行预处理,对url进行请求拦截
Comments | 13,420 条评论
博客作者 onwin
Thank you for great content. Hello Administ. Seo Paketi Skype: ByuMuT@KRaLBenim.Com –– live:by_umut
博客作者 order
[url=https://acutanep.online/]accutane online uk[/url]
博客作者 onwin
Thank you for great information. Hello Administ . Seo Paketi Skype: ByuMuT@KRaLBenim.Com –– live:by_umut
博客作者 check_cpu_temp_gxot
Monitoring CPU Temperature on Windows 11: Best Tools and Tips
cpu temperature monitor windows 11 [url=https://www.check-cpu-temperature-windows-11.com/]https://www.check-cpu-temperature-windows-11.com/[/url] .
博客作者 onwin
After all, what a great site and informative posts, I will upload inbound link – bookmark this web site? Regards, Reader.Seo Paketi Skype: ByuMuT@KRaLBenim.Com –– live:by_umut
博客作者 cheap
[url=https://modafinilmip.online/]provigil online pharmacy uk[/url]
博客作者 pill
[url=https://xlyrica.com/]lyrica cheap online[/url]
博客作者 DavidVab
Discover the cream of the crop when it comes to OnlyFans accounts. Get the superlative OF models in compensation 2024 who resonate with your preferences and interests — sink yourself in the search.
The cornerstone of OnlyFans [url=https://medium.com/@onlyfans-free-trials/the-best-free-trial-and-free-onlyfans-for-2024-22421b5ed81d]https://medium.com/@onlyfans-free-trials/the-best-free-trial-and-free-onlyfans-for-2024-22421b5ed81d[/url] lies in that it is a subscription-based social media stand where creators are masterly to monetize their comfortable nearby requesting monthly payments. In spite of being introduced in 2016, OnlyFans has gained brobdingnagian popularity, strikingly within the grown up entertainment realm. Notwithstanding its allure doesn’t solely zero in on nudity or porn as numerous genres discover to be presentation on the stand: suitableness, aptitude, music and more to bring up but a few.
The manifestness of adult material on OnlyFans is quite clear. A great deal b much of creators charge of the site as a solicitous retreat to make loaded alongside posting pictures and videos with an definite focus. Be that as it may, in counting up to this moment on of age import, OnlyFans also backs creators from other divers fields. The tenets has enabled cosplayers, gamers, and storytellers in originality to discover to be their own path towards good fortune by standing out with originality in their interactions with their fans on the platform.
Let us take a closer look at some of the refresh and most lucrative OnlyFans accounts representing the year 2024. Every account showcases unequivocal strategies in text oeuvre and interaction.
博客作者 Vernontug
Пункт техосмотр (просто техосмотр) является принципиальной долею организации защиты на магистралях. В неких странах он является обязательным для абсолютно всех автомобилей, чтобы гарантировать их соответствие стандартам безопасности и экологической приемлемости.
Основная цель пункта техосмотра – проверка технического состояния транспортного средства, также его экологической безопасности. В ходе осмотра могут проверяться такие характеристики, как тормозная система, освещение, выхлопные газы, состояние шин и прочие принципиальные элементы.
Результаты технического осмотра определяют, можно ли продолжать использовать транспортное средство на дорогах либо требуется проведение ремонтных работ. Неименье или нарушение прохождения технического осмотра может привести к штрафам или временному воспрещению эксплуатации автомобиля.
[url=https://yandex.ru/maps/org/tekhosmotr/11324347330/?ll=30.350471%2C59.827026&z=16]Пункт техосмотра[/url] является неотъемлемой долею заботы о безопасности на дорогах и подсобляет снизить вероятность аварий весьза технических дефектов.
博客作者 Jessecroli
Find medication facts. Drug resource available.
[url=https://isotretinoin365n.top]buy accutane medication[/url]
Find medicine information. Get pill details.
博客作者 By Casino
Thank you great post. Hello Administ .Seo Paketi Skype: ByuMuT@KRaLBenim.Com –– live:by_umut
博客作者 onwin
Thank you for great content. Hello Administ. Seo Paketi Skype: ByuMuT@KRaLBenim.Com –– live:by_umut
博客作者 Bycasino
Hi, just required you to know I he added your site to my Google bookmarks due to your layout. But seriously, I believe your internet site has 1 in the freshest theme I??ve came across.Seo Paketi Skype: ByuMuT@KRaLBenim.Com –– live:by_umut
博客作者 onwin
Hi, just required you to know I he added your site to my Google bookmarks due to your layout. But seriously, I believe your internet site has 1 in the freshest theme I??ve came across.Seo Paketi Skype: ByuMuT@KRaLBenim.Com –– live:by_umut
博客作者 Hacklink
Thank you for content. Area rugs and online home decor store. Hello Administ . Seo Paketi Skype: ByuMuT@KRaLBenim.Com –– live:by_umut