小编Mat*_*rla的帖子

如何Cache-Control在Spring Boot中为静态资源添加HTTP头？

尝试在应用程序中使用过滤器组件,它正确地写入标头,但Cache-Control标头被覆盖.

@Component
public class CacheBustingFilter implements Filter {

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
    }

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

        HttpServletResponse httpResp = (HttpServletResponse) resp;
        httpResp.setHeader("Cache-Control", "no-cache, no-store, must-revalidate");
        httpResp.setHeader("This-Header-Is-Set", "no-cache, no-store, must-revalidate");
        httpResp.setHeader("Expires", "0");

        chain.doFilter(req, resp);
    }

我在浏览器中得到的是:

Cache-Control:no-store
This-Header-Is-Set:no-cache, no-store, must-revalidate
Expires:0

我想要的是:

Cache-Control:no-cache, no-store, must-revalidate
This-Header-Is-Set:no-cache, no-store, must-revalidate
Expires:0

有谁知道为什么最后一个不起作用？

object nullObj = null;
short works1 = (short) (nullObj ?? (short) 0);
short works2 = (short) (nullObj ?? default(short));
short works3 = 0;
short wontWork = (short) (nullObj ?? 0); //Throws: Specified cast is not valid

在VS2012中专门针对MVC的快捷方式存在问题.

组合键(CTRL + M,CTRL + G)绑定到当前不可用的命令(Go To View).

但是例如Refactor-> Rename work.

• 禁用ReSharper没有帮助.
• 它适用于VS2010,但不适用于VS2012.

我看了相关的问题:快捷键不起作用(带有ASP.NET MVC 3 RC1的Visual Studio 2010)

以前在VS2010中遇到过这个问题,并且接受的答案解决了这个问题.