我正在使用 Spring Security 4.0 编写一个安全应用程序。作为其中的一部分，我想调用注销电话。它只是给出了不支持请求方法“POST”。这是我的代码:
spring-security.xml
<security:http auto-config="true">
<security:access-denied-handler error-page="/denied"/>
<security:form-login login-page="/login"
username-parameter="j_username"
password-parameter="j_password"
login-processing-url="/j_spring_security_check"
authentication-failure-url="/login?failed=true"
default-target-url="/home" always-use-default-target="true"/>
<security:custom-filter ref="secfilter" before="FILTER_SECURITY_INTERCEPTOR" />
<security:logout invalidate-session="true" logout-url="/j_spring_security_logout" logout-success-url="/login"/>
<!-- <security:logout logout-url="/j_spring_security_logout" logout-success-url="/login"/> -->
<security:csrf />
</security:http>
jsp
<a href="j_spring_security_logout"> <button class="logoutbtn">logout</button></a>
<input type="hidden" name="${_csrf.parameterName}" value="${_csrf.token}"/>
最佳答案
如果使用CSRF，则必须使用HTTP POST (在 JSP 中使用 <form>)而不是 HTTP GET (在 JSP 中使用 <a>)，请参阅 Spring Security Reference :
18.5.3 Logging Out
Adding CSRF will update the LogoutFilter to only use HTTP POST. This ensures that log out requires a CSRF token and that a malicious user cannot forcibly log out your users.
One approach is to use a form for log out. If you really want a link, you can use JavaScript to have the link perform a POST (i.e. maybe on a hidden form). For browsers with JavaScript that is disabled, you can optionally have the link take the user to a log out confirmation page that will perform the POST.
例如，请参阅Spring Security Reference :
37.5.1 Automatic Token Inclusion
Spring Security will automatically include the CSRF Token within forms that use the Spring MVC form tag. For example, the following JSP:
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" xmlns:c="http://java.sun.com/jsp/jstl/core" xmlns:form="http://www.springframework.org/tags/form" version="2.0"> <jsp:directive.page language="java" contentType="text/html" /> <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"> <!-- ... --> <c:url var="logoutUrl" value="/logout"/> <form:form action="${logoutUrl}" method="post"> <input type="submit" value="Log out" /> <input type="hidden" name="${_csrf.parameterName}" value="${_csrf.token}"/> </form:form> <!-- ... --> </html> </jsp:root>
关于java - 注销在 Spring Security 中不起作用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/41213013/