httpfilter.java

电信计费项目 该系统在Sun Solaris下开发,运行于Apache Tomcat平台,采用J2EE架构

package com.tarena.netctoss.util;

import java.io.IOException;

import javax.servlet.*;
import javax.servlet.http.*;

public abstract class HttpFilter implements Filter{
	
	private FilterConfig config;
	
	public void destroy() {
		
	}

	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		doFilter((HttpServletRequest)request,(HttpServletResponse)response,chain);
	}
	
	public abstract void doFilter(HttpServletRequest request, HttpServletResponse response, FilterChain chain) throws IOException,ServletException;

	
	public void init(FilterConfig config) throws ServletException {
		this.config=config;
		init();
	}
	
	public void init(){
		
	}
	public FilterConfig getFilterConfig(){
		return config;
	}
	
	public String getInitParameter(String name){
		return config.getInitParameter(name);
	}
	
	public ServletContext getServletContext(){
		return config.getServletContext();
	}
}