filter常用功能
1) Authentication Filters
2) Logging and Auditing Filters
3) Image conversion Filters
4) Data compression Filters
5) Encryption Filters
6) Tokenizing Filters
7) Filters that trigger resource access events
8) XSL/T filters
9) Mime-type chain Filter
1、认证
2、登录和审计
3、图像转换
4、数据压缩
5、加密
6、标记化
7、触发
8、XSL/T
9、Mime-type