Web应用程序URL访问java
我试图了解这些请求是如何工作的。不幸的是，我首先被困在编码上，然后才被困在理解上。
几年前，我用 java 编写了一些非常基本的 Web 应用程序，它确实按预期工作。在其主网页（.jsp）上，我将以下内容作为菜单按钮之一：
<p><a href="home.jsp">test</a></p>
我目前正在编写新的网络应用程序，但忘记了很多。这次我用 Spring MVC 正确地完成了它。我真的无法理解为什么这个片段不再将我带到当前 Web 应用程序中的 home.jsp 以及为什么一开始我确实在旧应用程序中使用它。
Apache给出：请求的资源()不可用。
这并不是说我需要那种直接交互，只是我想了解资源是否可以通过 URL 访问？ Spring MVC 是否给我带来了额外的安全性，只有 servlet 处理的请求才能产生视图？我是否错过了一些非常微不足道的事情？
此外，在同一个旧的 Web 应用程序菜单中，我可以直接链接到 Servlet，但目前我无法在新的 Web 应用程序中直接引用 Servlet。我可以发出相关请求，该请求将由 servlet 捕获，但不能通过其名称捕获。
Apache给出：请求的资源()不可用。
从菜单中引用 servlet：
<% if((String) session.getAttribute("passengerFound") != null){ %>
<a href="TripRecentBook"><img style="border:0" src="menuButtons/My Trips.png" alt="My Trips"/></a> <%} %>
谢谢，我敢打赌这真的很简单。我真的很想明白，请帮忙。 我知道它与前端控制器（dispatcherServlet）有关，但我无法在脑海中形成逻辑且坚定的解释。
I am trying to understand how the requests works. Unfortunately I was thrown at coding first and only then at understanding.
I wrote some really basic webapplication in java few years ago and it did work as expected. On its main web-page(.jsp) I had following as one of the menu buttons:
<p><a href="home.jsp">test</a></p>
I am currently writing new webapp and forgot a lot. This time I am doing it with Spring MVC and properly. I can't really understand why this snippet no longer brings me to the home.jsp in current webapplication and why at first I did use it in old app.
Apache gives: The requested resource () is not available.
It is not that I need that sort of direct interaction, it is just I am trying to understand whether resources are accessible via URL? Does Spring MVC brings me extra security, where only servlet handled requests can result in a view? Am I missing something really trivial?
Moreover in that same old web app menu I had direct link to the servlet, but currently I can't make such direct reference to the servlet in the new webapp. I can make relevant request which will be captured by the servlet, but not by the name of it.
Apache gives: The requested resource () is not available.
Reference to servlet from menu:
<% if((String) session.getAttribute("passengerFound") != null){ %>
<a href="TripRecentBook"><img style="border:0" src="menuButtons/My Trips.png" alt="My Trips"/></a> <%} %>
Thanks, I bet it is really simple. I really want to understand, please help.
I know that it has something to do with Front Controller(dispatcherServlet), but I can't form logical and firm explanation in my head.
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简而言之，不。使用 Spring MVC 时的默认行为和推荐配置是将 Spring DispatcherServlet 映射到
/url 模式，这意味着所有请求都发送到 DispatcherServlet。开箱即用的调度程序 servlet 不会为任何静态资源请求提供服务。如果需要，两个主要选项是上面的内容将告诉 spring mvc 将所有对 /res/** 的请求视为对静态资源（如图像等），并且这些资源物理上位于应用程序根目录的 /res/ 文件夹中。
In short, no. The default behavior and recommended configuration when using Spring MVC is to map the Spring DispatcherServlet to the
/url pattern, meaning ALL requests are sent to the DispatcherServlet. Out of the box, the dispatcher-servlet will NOT service any requests for static resources. If this is desired, the two main options are<mvc:resources mapping="/res/**" location="/res/" />This above would tell spring mvc to treat all request to /res/** as requests for static resources (like images etc) and that those resources are physically located in the /res/ folder in the application root.
您可能只是缺少一个“/”，如
"/home.jsp"而不是"home.jsp"You might just be missing a "/" as in
"/home.jsp"instead of"home.jsp"