Java prohibits the browser from caching the source code. java prohibits the caching of the source code.

Java prohibits the browser from caching the source code. java prohibits the caching of the source code.

Java prohibits the browser from having cached source code

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;/***** force not to cache pages for mutual E-Commerce Learning Exchange Group: 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 client request] [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] system initialization init ...... ") ;}@ Override public void destroy () {logger.info (" [ForceNoCacheFilter] destroy ...... ");}}

 

At the same time, do not forget to configure web. xml ..

 

<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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