userfilter.java

来自「基于struts+hibernate的电子商务网站。可运行。数据库mysql」· Java 代码 · 共 52 行

package tarena.filter;

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

import tarena.global.CookieOperate;
import tarena.global.MessageOperate;
import tarena.global.PublicParameter;

public class UserFilter implements Filter {

	@Override
	public void destroy() {
		
	}

	@Override
	public void doFilter(ServletRequest req, ServletResponse res,
			FilterChain chain) throws IOException, ServletException {
		HttpServletRequest request = (HttpServletRequest) req;
		HttpServletResponse response = (HttpServletResponse) res;
		Cookie cookie = null;
		try {
			cookie = CookieOperate.FindCookie(PublicParameter.cookie_user, request.getCookies());			
		} catch (RuntimeException e) {
			MessageOperate.notLogin(request, response);
			return;
		}
		if(cookie == null){
			MessageOperate.notLogin(request, response);
		}
		chain.doFilter(request, response);
			}
	
	
	
	@Override
	public void init(FilterConfig arg0) throws ServletException {
		
	}

}