Question

在web.xml中加入过滤器

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<servlet>
<servlet-name>JobServlet</servlet-name>
<servlet-class>com.hebut.servlet.JobServlet</servlet-class>
</servlet>

<servlet-mapping>
<servlet-name>JobServlet</servlet-name>
<url-pattern>/JobServlet</url-pattern>
</servlet-mapping>

<servlet>
<servlet-name>CompanyServlet</servlet-name>
<servlet-class>com.hebut.servlet.CompanyServlet</servlet-class>
</servlet>

<servlet-mapping>
<servlet-name>CompanyServlet</servlet-name>
<url-pattern>/company/CompanyServlet</url-pattern>
</servlet-mapping>
</web-app>

怎么添加啊 对于Student.jsp添加一个过滤器 Student.jsp的包是job
谢谢各位了

Answer 1

在web.xml中加入过滤器，参考代码如下：
<filter>
<filter-name>authority</filter-name> //过滤器的名称，可以自行修改
<filter-class>com.topcheer.filter.AuthorityFilter</filter-class>
<init-param> //初始化的参数
<param-name>NotRequiredAuthorityURL</param-name>
<param-value>/downloadImageControl.action,/initLogin.action,/default.jsp,/logout.jsp,/invalidation.jsp,/login.action,/default.action</param-value>
</init-param> //初始化的参数
<init-param> //初始化的参数
<param-name>invalidURL</param-name> //过滤器要过滤的对象，可自行设置
<param-value>/invalidation.jsp</param-value>
</init-param>
</filter>

<filter-mapping> //过滤器映射
<filter-name>authority</filter-name>
<url-pattern>*.action</url-pattern>
</filter-mapping> //过滤器映射
<filter-mapping> //过滤器映射
<filter-name>authority</filter-name>
<url-pattern>*.jsp</url-pattern>
</filter-mapping>

Answer 2

直接使用spring的过滤器就可以定义好对应filter和filter-mapping之后即可自动进行过滤，典型的就是编码过滤器。
<filter>
<filter-name>CharacterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
备注：
这个是固定写法，代码中的“*”表示所有内容都必须经过此过滤器，也可以自定义类型。
也可以自动与过滤器，之后只需要继承自Filter 即可。

Answer 3

能满足你不
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>

<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>*.htm</url-pattern>
</filter-mapping>

Answer 4

自己建个过滤器类 然后在web.xml文件中这样配置信息
<filter>
<filter-name>MyFilterfilter-name>
<filter-class>myPackage.FilterClassfilter-class>
filter>

<filter-mapping>
<filter-name>MyFilterfilter-name>
<url-pattern>/job</url-pattern>
</filter-mapping>