让oscache支持正则表达式

正常的oscache在web.xml中

<url-pattern>/*</url-pattern>

是不支持正则表达式的

实际上重写cacheFilter即可实现
代码如下

    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws ServletException, IOException {
        if (log.isInfoEnabled()) {
            log.info("OSCache: filter in scope " + cacheScope);
        }
        /////////////////////////////
        if( !needCachePage((HttpServletRequest)request) ){
        	chain.doFilter(request, response);
            return;
        }

        // avoid reentrance (CACHE-128) and check if request is cacheable
        if (isFilteredBefore(request) || !isCacheableInternal(request)) {
            chain.doFilter(request, response);
            return;
        }

needCachePage()函数如下

   public static void main(String[] args) {
		System.out.println("/o2o/product_1.do".matches("/o2o/product_\\d+\\.do"));
	}

当然这只是个demo 可以替换成自己的正则表达式与请求路径对比即可