在Spring MVC中的servlet映射中，如何映射url模式目录的根？ [英] In a servlet mapping in Spring MVC how do I map the root of a url pattern directory?

问题描述

<servlet-mapping>
    <servlet-name>testServlet</servlet-name>
    <url-pattern>/test/*</url-pattern>
</servlet-mapping>

如果我点击 / test / page ，以上操作就可以了。但是，点击 / test 或 / test / 将无效。我正在使用Spring MVC，我的请求映射如下：

If I hit /test/page the above will work. However, hitting /test or /test/ will not work. I'm using Spring MVC, and my request mapping is as follows:

@RequestMapping(value = {"","/"})

编辑：

我正在使用独立项目进行验证，但这似乎是Spring的UrlPathHelper的错误。当存在上下文和servlet路径时，以下方法返回不正确的路径，并且在没有尾部斜杠的情况下命中servlet。

I'm in the process of verifying with an independent project, but this appears to be a bug with Spring's UrlPathHelper. The following method returns an incorrect path when there is both a context and a servlet path, and you hit the servlet without a trailing slash.

public String getPathWithinApplication(HttpServletRequest request) {
    String contextPath = getContextPath(request);
    String requestUri = getRequestUri(request);
    if (StringUtils.startsWithIgnoreCase(requestUri, contextPath)) {
        // Normal case: URI contains context path.
        String path = requestUri.substring(contextPath.length());
        return (StringUtils.hasText(path) ? path : "/");
    }
    else {
        // Special case: rather unusual.
        return requestUri;
    }
}

就像一个例子，假设我有一个上下文admin和以下servlet-mapping：

Just as an example let's say I have a context of "admin" and the following servlet-mapping:

<servlet-mapping>
    <servlet-name>usersServlet</servlet-name>
    <url-pattern>/users/*</url-pattern>
</servlet-mapping>

现在我在我的一个控制器中有一个请求映射，如下所示：

Now I have a request mapping in one of my controllers like this:

@RequestMapping(value = {"","/"})

如果我点击 / admin / users ，它将无效。但是，如果我点击 / admin / users / ，它就能正常运行。现在，如果我将请求映射更改为以下内容，那么它们都将起作用：

If I hit /admin/users it will not work. However, if I hit /admin/users/ it will work. Now if I change my request mapping to the following then they will both work:

@RequestMapping(value = {"/users","/"})

但是，现在URL / admin / users / users 也可以工作（这不是我想要的）。

However, now the URL /admin/users/users will also work (which is not what I would want).

推荐答案

Yevgeniy 是正确的，但如果你的DispatcherServlet接管了默认的servlet，你必须将它添加到你的web.xml：

Yevgeniy is correct, but if your DispatcherServlet is taking over for the default servlet, you have to add this to your web.xml:

<welcome-file-list>
    <welcome-file>/</welcome-file>
</welcome-file-list>

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