过滤器

2. web.xml:
3. <filter>
4. <filter-name>encodingFilter</filter-name>
5. <filter-class>com.util.EncodingFilter</filter-class>
6. </filter>
7. <filter-mapping>
8. <filter-name>encodingFilter</filter-name>
9. <url-pattern>/*</url-pattern>
10. </filter-mapping>
13. 类:
14. packagecom.util;
16. importjava.io.IOException;
18. importjavax.servlet.Filter;
19. importjavax.servlet.FilterChain;
20. importjavax.servlet.FilterConfig;
21. importjavax.servlet.ServletException;
22. importjavax.servlet.ServletRequest;
23. importjavax.servlet.ServletResponse;
25. publicclassEncodingFilterimplementsFilter{
27. publicvoidinit(FilterConfigarg0)throwsServletException{
28. //TODO自动生成方法存根
30. }
32. publicvoiddoFilter(ServletRequestarg0,ServletResponsearg1,
33. FilterChainarg2)throwsIOException,ServletException{
34. //TODO自动生成方法存根
35. arg0.setCharacterEncoding("UTF-8");
36. arg2.doFilter(arg0,arg1);
37. }
39. publicvoiddestroy(){
40. //TODO自动生成方法存根
42. }
44. }