filterencoding.java~3~

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package util.string;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;

public class FilterEncoding extends HttpServlet implements Filter {
    private FilterConfig filterConfig = null;
   private String defaultEncode ="GB2312"; //"UTF-8";

   public void init(FilterConfig config) throws ServletException {
     this.filterConfig = config;
     if(config.getInitParameter("Charset")!=null){
         defaultEncode=config.getInitParameter("Charset");
     }
   }

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



    //Process the request/response pair
    public void doFilter(ServletRequest request, ServletResponse response,
                         FilterChain filterChain) {
        try {
           ServletRequest srequest=request;
           srequest.setCharacterEncoding(defaultEncode);
           filterChain.doFilter(request, response);
        } catch (ServletException sx) {
            filterConfig.getServletContext().log(sx.getMessage());
        } catch (IOException iox) {
            filterConfig.getServletContext().log(iox.getMessage());
        }
    }
}