过滤器的高级配置

1 2     <filter-mapping>

3         <filter-name>FilterDemo3</filter-name>

4         <url-pattern>/*</url-pattern>

5         <dispatcher>REQUEST</dispatcher> 默认情况。如果写了另外一种情况，默认的就没有了

6         <dispatcher>FORWARD</dispatcher>

7         <dispatcher>INCLUDE</dispatcher>

8         <dispatcher>ERROR</dispatcher>

9       </filter-mapping>

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