Question

如何将过滤器映射到JSP？我想在第一次调用JSP时首先调用过滤器，然后将请求发送到JSP。我该怎么做？

<filter>
    <filter-name>Filter-1</filter-name>
    <filter-class>Filters.Filter_1</filter-class>
</filter>
<filter-mapping>
    <filter-name>Filter-1</filter-name>
    <!-- map the filter to jsp . How do I do that ?-->
</filter-mapping>

Answer 1

添加唯一标识特定JSP调用的URL模式

<filter-name>Filter-1</filter-name>
<url-pattern>YourJsp.jsp</url-pattern>

Answer 2

<filter-mapping>  
   <filter-name>Filter-1</filter-name>  
   <servlet-name>your-Servlet-Name</servlet-name>  
</filter-mapping>

我们可以完成所有JSP：

 <url-pattern>*.jsp</url-pattern>

将过滤器映射到jsp

2 个答案: