package com.wrq.filter;

import java.io.IOException;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.Filter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class EncodingFilter implements Filter {


	public void init(FilterConfig filterConfig) throws ServletException {
		
	}

	public void doFilter(ServletRequest req, ServletResponse res,FilterChain filterChain) {

		try {
			HttpServletRequest request = (HttpServletRequest) req;
			HttpServletResponse response = (HttpServletResponse) res;
			HttpSession session = request.getSession();
			request.setCharacterEncoding("UTF-8");
			response.setCharacterEncoding("UTF-8");
			// 这里放到达目的地前(进入)处理代码                               
			filterChain.doFilter(req, res);
			// 这里放到达目的地(离开)的处理代码    

		} catch (IOException e) {
			e.printStackTrace();
		} catch (ServletException e) {
			e.printStackTrace();
		}
	}

	public void destroy() {

	}
}