在我的 Spring Security 应用程序中，我的注销按钮放置了以下代码
<li><a href="<c:url value="j_spring_security_logout"/>">Log out</a></li>
现在当我的 URL 是http://localhost:8080/servletname 时，注销工作正常。
即使是http://localhost:8080/servletname/abc，它也能正常工作。
但是当 URL 是 http://localhost:8080/servletname/abc/xyz 时，当我单击注销按钮时，我会得到一个 404 页面，因为页面被重定向到 http://localhost:8080/servletname/abc/j_spring_security_logout。
我该如何解决这个问题？
【问题讨论】：
标签： java spring jsp spring-security jstl
">退出link特别是部分：
Given a base URL and a relative URL (that does not begin with a slash), a full URL is derived as follows:
If the base URL ends with a slash the full URL is derived by appending the relative URL to the base URL. For example, if the base URL is http://nosite.com/dir1/dir2/ and the relative URL is gee.html, the derived URL is http://nosite.com/dir1/dir2/gee.html.
If the base URL doesn't end with a slash, the last piece of the base URL is considered a resource, so the full URL is derived by appending the relative URL to the parent of the base URL. For example, if the base URL is http://nosite.com/dir1/dir2 and the relative URL is gee.html, the derived URL is http://nosite.com/dir1/gee.html
您使用的是相对路径，请在 url 开头使用“/”使其成为绝对路径：
<a href="<c:url value="/j_spring_security_logout"/>">Log out</a>
【讨论】：
<a href="<c:url value="/j_spring_security_logout"/>">Log out</a>