Question

在我的Java（UI和业务实现之间的中间件）项目中添加以下代码以在UI中停止缓存。

Java代码：

response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate"); // HTTP 1.1.
response.setHeader("Pragma", "no-cache"); // HTTP 1.0.
response.setDateHeader("Expires", 0); // Proxies

Answer 1

通常，您会编写一个过滤器来设置这些标题。

public class NoCacheFilter implements Filter {

public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
    HttpServletRequest req = (HttpServletRequest) request;
    HttpServletResponse res = (HttpServletResponse) response;
    res.setHeader("Cache-Control", "no-cache, no-store, must-revalidate"); // HTTP 1.1.
    res.setHeader("Pragma", "no-cache"); // HTTP 1.0.
    res.setDateHeader("Expires", -1); // Proxies.

    chain.doFilter(req, res);
}


public void init(FilterConfig arg0) throws ServletException {

}

}

并将其添加到您的web.xml

<filter>
    <filter-name>NoCacheFilter </filter-name>
    <filter-class>com.example.NoCacheFilter </filter-class>
</filter>
<filter-mapping>
    <filter-name>NoCacheFilter </filter-name>
    <url-pattern>/rest/*</url-pattern>
</filter-mapping>

我已将过滤器设置为rest网址上下文。这假设REST服务位于单个上下文中。

如何在REST服务的RESPONSE主体中删除Cookie

1 个答案: