setcharacterencodingfilter.java

（原创）这是用Strust实现的一个简单新闻发布系统

package studynews;

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

public class SetCharacterEncodingFilter implements Filter {
	 private FilterConfig filterConfig; 

	 public void destroy()
	 {
	  // TODO Auto-generated method stub
	  
	 } 

	 public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain) throws IOException, ServletException
	 {
	  // TODO Auto-generated method stub
	  try{
	   request.setCharacterEncoding("GB2312");
	   HttpServletResponse res = (HttpServletResponse)response;
	   res.setHeader("Pragma", "No-cache");
	   res.setHeader("Cache-Control", "no-cache");
	   res.setHeader("Pragram", "no-cache");
	   filterChain.doFilter(request, response);
	  }catch(ServletException e)
	  {
	   filterConfig.getServletContext().log(e.getMessage());
	  }catch(IOException e)
	  {
	   filterConfig.getServletContext().log(e.getMessage());
	  }
	 } 

	 public void init(FilterConfig filterConfig) throws ServletException
	 {
	  // TODO Auto-generated method stub
	  this.filterConfig = filterConfig;
	 } 

	}