Servlet 路径信息包含空字符串

Servlet path info includes empty string

我有以下 servlet:

@WebServlet("/publication/topic/*")
public class ViewTopicPublicationsServlet extends HttpServlet {

    protected void doGet(HttpServletRequest request, HttpServletResponse response) {
        String[] pathInfo = request.getPathInfo().split("/");
        System.out.println(Arrays.toString(pathInfo));
        ...
    }
}

例如,如果我有这样的 url: http://localhost:8080/bulletinboard/publication/topic/SALE

我想省略空字符串。所以 pathInfo 结果是 [SALE] 而不是 [,SALE]

如何实现?

您可以省略第一个字符,因为它始终是斜线:

request.getPathInfo().substring(1).split("/")