refuseaccessfilter.java

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package cn.jsprun.filter;

import java.io.IOException;
import java.io.PrintWriter;

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.HttpServletResponse;

import cn.jsprun.utils.JspRunConfig;

public class RefuseAccessFilter implements Filter {

	public void destroy() {
	}

	public void doFilter(ServletRequest req, ServletResponse res,
			FilterChain chain) throws IOException, ServletException {
		HttpServletResponse response = (HttpServletResponse) res;
		response.setContentType("text/html; charset="+JspRunConfig.charset);
		response.setHeader("Cache-Control", "no-store"); 
		response.setHeader("Program", "no-cache"); 
		response.setDateHeader("Expirse", 0);
		PrintWriter out=response.getWriter();
		out.write("Access Denied");
		out.flush();
		out.close();
	}

	public void init(FilterConfig arg0) throws ServletException {
	}

}