The order in which multiple filter runs in Web. xml

Original source: http://blog.csdn.net/weizhi/article/details/1895014

The order in which multiple filter runs in Web. xml
Walker ([email protected]) 2007-11-20
Environment: Tomcat 6.x

The order in which multiple filters are run depends on the following rules:

1. filter-mapping add elements to the chain in the url-pattern order in which they appear in the deployment descriptor by including the filters that match the request. web.xml

2. filter-mapping Add the element that contains the filter that matches the request servlet-name after the filter that matches the URL pattern in the chain.

3. In-line first-out, the last item in the chain is often the originally requested resource.

Other words:

1. The filter runtime configured in Url-pattern must precede the filter configured in the Servlet-name mode
2. In the filter configured in Url-partern, if there are multiple matches to the current request, it is run in the order in which filter-mapping appears in Web. xml
3. For a filter configured in Servlet-name mode, if there are multiple matches to the current request, it is also run in the order in which filter-mapping appears in Web. xml