/*
?*?To?change?this?template?choose?Tools?|?Templates
?*?and?open?the?template?in?the?editor.
?*/

package?com.wgh.filter;


import?java.io.IOException;

import?javax.servlet.*;



public?class?CharacterEncodingFilter?implements?Filter{

??
??protected?String?encoding?=?null;
???
?protected?FilterConfig?filterConfig?=?null;

?
???public?void?init（FilterConfig?filterConfig）?
throws?ServletException?{
???????
???????this.filterConfig?=?filterConfig;
??
??????this.encoding?=?filterConfig.getInitParameter（“encoding“）;
???
?}

??
??public?void?doFilter（ServletRequest?request?ServletResponse?response?FilterChain?chain）?throws?IOException?
ServletException?{
????
????if?（encoding?!=?null）?{
??
??????????request.setCharacterEncoding（encoding）;
??
??????????response.setContentType（“text/html;?charset=“+encoding）;
????
????}
????????
chain.doFilter（request?response）;
??
??}

???
?public?void?destroy（）?{
?
???????this.encoding?=?null;
??
??????this.filterConfig?=?null;
???
?}

}