tomcat拒绝访问特定文件

tomcat拒绝访问特定文件

一种方法是实施

Filter

例如：

package package;import javax.servlet.*;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class FilterImplementation implements Filter{    public void init(FilterConfig filterConfig) throws ServletException {...}    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException    {        // if you detect an illegal request, throw an exception or return without calling chain.doFilter.        chain.doFilter(request, response);         }    public void destroy() {...}}

将以下内容添加到web.xml中：

<filter>    <filter-name>MyFilter</filter-name>    <filter-class>package.FilterImplementation</filter-class></filter><filter-mapping>    <filter-name>MyFilter</filter-name>    <url-pattern>/*</url-pattern></filter-mapping>

编辑

您需要了解的有关请求哪个页面的所有信息都在

request

参数中。

ServletRequest

但是，参数类型几乎总是为a，

HttpServletRequest

因此您可以执行以下 *** 作：

if (request instanceof HttpServletRequest){    HttpServletRequest hrequest = (HttpServletRequest) request;    String uri = hrequest.getRequestURI(); // you should be able to just use this    String uri = hrequest.getRequestURL(); // otherwise there are more in-depth fields}