??????? 将HTTP响应头信息中的缓存参数设置为不进行缓存。
??????? 在 java web 项目的 web.xml 文件中添加如下代码。
class="xml comments" style="background: none !important; margin: 0px !important; padding: 0px !important; border-radius: 0px !important; border-image: none !important; width: auto !important; height: auto !important; text-align: left !important; color: #008200 !important; line-height: 1.8em !important; overflow: visible !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-size: 12px !important; font-style: normal !important; font-weight: normal !important; vertical-align: baseline !important; float: none !important; white-space: pre-wrap;"><!--设置不使用缓存的过滤器配置? 开始 -->
<filter>
?<filter-name>ClearCacheFilter</filter-name>
?<filter-class>com.hmw.filter.ClearCacheFilter</filter-class>
</filter>
?
<filter-mapping>
?<filter-name>ClearCacheFilter</filter-name>
?<url-pattern>*.do</url-pattern>
</filter-mapping>
<filter-mapping>
?<filter-name>ClearCacheFilter</filter-name>
?<url-pattern>*.jsp</url-pattern>
</filter-mapping>
<!--设置不使用缓存的过滤器配置? 结束 -->
package?com.hmw.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.HttpServletResponse;
?
/**
?* 使浏览器不缓存页面信息的过滤器<br>
?*/
public?class?ClearCacheFilter implements?Filter {
?
????@Override
????public?void?init(FilterConfig filterConfig) throws?ServletException {
????}
?
????@Override
????public?void?doFilter(ServletRequest request, ServletResponse response,
????????????FilterChain filterChain) throws?IOException, ServletException {
????????HttpServletResponse httpResponse = (HttpServletResponse) response;
????????httpResponse.setHeader("Cache-Control", "no-cache");
????????httpResponse.setHeader("Pragma", "no-cache");
????????httpResponse.setDateHeader("Expires", -1);
????????filterChain.doFilter(request, response);
????}
?
????@Override
????public?void?destroy() {
????}
}
?
相关文章
