setcharacterencodingfilter.java

struts hibernate框架 商场买卖

package com.shopping.util;

import java.io.IOException;

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.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class SetCharacterEncodingFilter implements Filter {
	private FilterConfig filterConfig;

	public void init(FilterConfig filterConfig) throws ServletException {
	         this.filterConfig = filterConfig;
	     }
	
	public void doFilter(ServletRequest request, ServletResponse response,FilterChain filterChain) {
	    try {
	     String encoding=filterConfig.getInitParameter("encoding");
	     //从WEB.xml配置文件中取出参数，这样我们可以通过配置修改编码格式．                  
	     request.setCharacterEncoding(encoding);//设置请求的编码格式
	     filterChain.doFilter(request, response);
	     System.out.println("dofilter");
	    } catch (ServletException sx) {
	     filterConfig.getServletContext().log(sx.getMessage());
	    } catch (IOException iox) {
	     filterConfig.getServletContext().log(iox.getMessage());
	    }
	}
	
	public void destroy() {
        this.filterConfig = null;  

	}

}