encodefilter.java

struts2+ejb3.0+mysql+jboss+myeclipse的登录模块

package com.ouyang.ejb3.util;

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

public class EncodeFilter implements Filter {

	public void destroy() {}

	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {

		HttpServletRequest httpRequest = (HttpServletRequest)request;
		HttpServletResponse httpResponse = (HttpServletResponse)response;
		String url = httpRequest.getRequestURL().toString();
		
		String path = httpRequest.getContextPath();
		if (url.lastIndexOf("EJB3") > 0) {			
			httpResponse.sendRedirect(path + "/login.action");			
		} else chain.doFilter(request, response);
	}
	
	public void init(FilterConfig arg0) throws ServletException {}

}