Java禁止浏览器有缓存的源码

Java禁止浏览器有缓存的源码

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 org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/***
 * 强制不要页面缓存  共同电商学习交流群：168096884  
 * @author*/
public class ForceNoCacheFilter implements Filter {

    private static final Logger logger = LoggerFactory.getLogger(ForceNoCacheFilter.class);

    @Override
    public void doFilter(ServletRequest req, ServletResponse resp, FilterChain filterChain)
            throws IOException, ServletException {

        logger.info("[ForceNoCacheFilter] start......");

        HttpServletResponse response = (HttpServletResponse) resp;
        HttpServletRequest request = (HttpServletRequest) req;

        String url = request.getRequestURI();

        logger.info("[ForceNoCacheFilter][web端请求][url]"+url);
        response.setHeader("Cache-Control", "no-cache");
        response.setHeader("Pragma", "no-cache");
        response.setDateHeader("Expires", -1);
        filterChain.doFilter(req, resp);
        return;
    }

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        logger.info("[ForceNoCacheFilter] 系统初始化init......");
    }

    @Override
    public void destroy() {
        logger.info("[ForceNoCacheFilter] destroy......");
    }
}

同时web.xml不要忘记配置了..

<filter>
<filter-name>NoCacheFilter</filter-name>
<filter-class>com.xx.filter.ForceNoCacheFilter</filter-class>
</filter>

<filter-mapping>
<filter-name>NoCacheFilter</filter-name>
<url-pattern>*.jsp</url-pattern>
</filter-mapping>

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