springmvc拦截器的配置、使用
本文内容纲要：
springmvc拦截器的配置、使用：
1.自定义拦截器，实现HandlerInterceptor接口。
packagecom.bybo.aca.web.interceptor;
importjavax.servlet.http.HttpServletRequest;
importjavax.servlet.http.HttpServletResponse;
importorg.springframework.web.servlet.HandlerInterceptor;
importorg.springframework.web.servlet.ModelAndView;
publicclassLoginimplementsHandlerInterceptor{
@Override
publicvoidafterCompletion(HttpServletRequesthttpRequest,
HttpServletResponsehttpResponse,Objectarg2,Exceptionarg3)
throwsException{
}
@Override
publicvoidpostHandle(HttpServletRequestarg0,HttpServletResponsearg1,
Objectarg2,ModelAndViewarg3)throwsException{
}
@Override
publicbooleanpreHandle(HttpServletRequestrequest,HttpServletResponseresponse,
Objectobject)throwsException{
/*HttpServletRequesthttpRequest=(HttpServletRequest)request;
HttpServletResponsehttpResponse=(HttpServletResponse)response;*/
StringurlString=request.getRequestURI();
///olForum/forumList.html模拟登录页
if(urlString.endsWith("forumList.html")){
returntrue;
}
//请求的路径
StringcontextPath=request.getContextPath();
/*httpRequest.getRequestDispatcher("/olForum/forumList").forward(httpRequest,httpResponse);*/
/*response.sendRedirect(contextPath+"/olForum/forumList.html");*/
response.sendRedirect(contextPath+"/olForum/forumList.html?login=aaa");
returnfalse;
/*httpResponse.sendRedirect(httpRequest.getContextPath()+"/olForum/forumList.html");
return;*/
}
}
2：springmvc配置文件中配置：
<?xmlversion="1.0"encoding="UTF-8"?>
<beansxmlns="http://www.springframework.org/schema/beans"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvchttp://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/txhttp://www.springframework.org/schema/tx/spring-tx.xsd">
<!--扫描controller（controller层注入）-->
<context:component-scanbase-package="com.bybo.aca.web.controller"/>
<mvc:interceptors>
<!--使用bean定义一个Interceptor，直接定义在mvc:interceptors根下面的Interceptor将拦截所有的请求-->
<!--<beanclass="com.bybo.aca.web.interceptor.Login"/>-->
<mvc:interceptor>
<!--进行拦截：/**表示拦截所有controller-->
<mvc:mappingpath="/**"/>
<!--不进行拦截-->
<mvc:exclude-mappingpath="/index.html"/>
<beanclass="com.bybo.aca.web.interceptor.Login"/>
</mvc:interceptor>
</mvc:interceptors>
<beanid="viewResolver"class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/views/"p:suffix=".jsp"/>
</beans>
本文内容总结：
原文链接：https://www.cnblogs.com/super-chao/p/6496428.html