JSP动态网站开发程序中的关于中文问题的解决方法

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 自动生成方法存根
　if (ignore (request.getcharacterencoding() == null)) {
　　string encoding = selectencoding(request);
　　if (encoding != null)
　　　request.setcharacterencoding(encoding);
　}
　chain.dofilter(request, response);
}

public void destroy() {
　// todo 自动生成方法存根
　this.encoding = null;
　this.filterconfig = null;
}

protected string selectencoding(servletrequest request) {
　return (this.encoding);
}
}