zhfilter.java

JBuilder 2006 +SQL Server2000 +JavaBean+JSP开发的宠物医院管理系统

package com.pet.util;

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

public class zhFilter extends HttpServlet implements Filter {
    private FilterConfig filterConfig;
       private String encoding="GBK";

       //Handle the passed-in FilterConfig
       public void init(FilterConfig filterConfig) throws ServletException {
           this.filterConfig = filterConfig;
           String enc = filterConfig.getInitParameter("encoding");
           if(enc==null){
               enc = encoding;
           }
       }

       //Process the request/response pair
       public void doFilter(ServletRequest request, ServletResponse response,
                            FilterChain filterChain) {
           try {
               //为客户请求对象进行字符过滤
               request.setCharacterEncoding(encoding);
               //为响应客户请求对象进行过滤
               response.setCharacterEncoding(encoding);
               filterChain.doFilter(request, response);
           } catch (ServletException sx) {
               filterConfig.getServletContext().log(sx.getMessage());
           } catch (IOException iox) {
               filterConfig.getServletContext().log(iox.getMessage());
           }
    }

    //Clean up resources
    public void destroy() {
    }
}