myfilter.java

我自己写的javabean+jsp+servlet

package com.gke;

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;
import javax.servlet.http.HttpServletRequest;

public class MyFilter implements Filter{

	private FilterConfig config=null;
	private String fontEncoding = "gb2312";
	
	
	public void destroy() {
		config=null;
	}

	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		HttpServletRequest req = (HttpServletRequest)request;
		req.setCharacterEncoding(this.fontEncoding);
		chain.doFilter(req, response);
	}

	public void init(FilterConfig config) throws ServletException {
		this.config=config;
		this.fontEncoding=config.getInitParameter("encoding");
	}
	
}