import java.io.ioexception;import javax.servlet.filter;import javax.servlet.filterchain;import javax.servlet.filterconfig;import javax.servlet.servletexception;import javax.servlet.servletrequest;import javax.servlet.servletresponse;public class setcharacterencodingfilter implements filter {　protected string encoding = null;　protected filterconfig filterconfig = null;　protected boolean ignore = true;　public void init(filterconfig filterconfig) throws servletexception {　　this.filterconfig=filterconfig;　　this.encoding=filterconfig.getinitparameter("encoding");　　string value=filterconfig.getinitparameter("ignore");　　if(value==null)　　　this.ignore=true;　　else if(value.equalsignorecase("true"))　　　this.ignore=true;　　else　　　this.ignore=false;　}　public void dofilter(servletrequest request, servletresponse response, filterchain chain) throws ioexception, servletexception {　// todo 自動生成方法存根　if (ignore || (request.getcharacterencoding() == null)) {　　string encoding = selectencoding(request);　　if (encoding != null)　　　request.setcharacterencoding(encoding);　}　chain.dofilter(request, response);}public void destroy() {　// todo 自動生成方法存根　this.encoding = null;　this.filterconfig = null;}protected string selectencoding(servletrequest request) {　return (this.encoding);}}

＜!-- set character encoding--＞＜filter＞　＜filter-name＞set character encoding＜/filter-name＞　＜filter-class＞com.struts.common.setcharacterencodingfilter＜/filter-class＞　＜init-param＞　　＜param-name＞encoding＜/param-name＞　　＜param-value＞utf-8＜/param-value＞　＜/init-param＞＜/filter＞＜filter-mapping＞　＜filter-name＞set character encoding＜/filter-name＞　　＜url-pattern＞/*＜/url-pattern＞　＜/filter-mapping＞＜!-- set character encoding--＞

＜connector debug="0" acceptcount="100" connectiontimeout="20000" disableuploadtimeout="true"port="80" redirectport="8443" enablelookups="false" minsparethreads="25" maxsparethreads="75"maxthreads="150" maxpostsize="0" uriencoding="gbk" ＞＜/connector＞