actionfilter.java

有关医院方向的开发

package com.dc.common;

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;

import com.dc.common.SysConstant;

public class ActionFilter implements Filter
{
	public void doFilter(ServletRequest arg0,ServletResponse arg1,FilterChain arg2) throws IOException,ServletException
	{
		HttpServletRequest request = (HttpServletRequest) arg0;
		HttpServletResponse response = (HttpServletResponse) arg1;

		if (request.getSession().getAttribute(SysConstant.LOGINVO) == null)
		{
			if (request.getRequestURI().length() > 0 && request.getRequestURI().indexOf("login.do") == -1 && request.getRequestURI().indexOf("login.jsp") == -1)
				response.sendRedirect(request.getContextPath() + "/sessionInvalid.htm");
		}

//		response.setHeader("Cache-Control","no-store");
//		response.setHeader("Pragrma","no-cache");
//		response.setDateHeader("Expires",0);

		request.setCharacterEncoding("GBK");
		arg2.doFilter(arg0,arg1);
		return;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see javax.servlet.Filter#destroy()
	 */
	public void destroy()
	{
		// TODO Auto-generated method stub
	}

	public void init(FilterConfig arg0) throws ServletException
	{
	}
}