JavaWeb过滤器Filter

@WebFilter("/CharacterFilter")
public class CharacterFilter implements Filter {

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

	
	public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws IOException, ServletException {
		HttpServletRequest request = (HttpServletRequest) req;
		HttpServletResponse response = (HttpServletResponse) resp;
		request.setCharacterEncoding("UTF-8");
		response.setCharacterEncoding("UTF-8");
		response.setContentType("text/html;charset=UTF-8");
		chain.doFilter(request, response);
	}

	
	public void init(FilterConfig fConfig) throws ServletException {
		// TODO Auto-generated method stub
	}

}