嗨，我正在为一个项目学习 Spring，并试图自学 sec 标签，以便在不同用户登录时创建多个 View 。我在设置标签时不断遇到错误。
这是我的 JSP:
<%@ taglib prefix="sec" uri="http://www.springframework.org/security/tags" %>
<html>
<head>
<title>Welcome</title>
</head>
<body>
<h1>Welcome</h1>
<security:authorize access="hasRole('admin')">
Only admins can see the <a href="second">Second link</a>
</security:authorize>
</body>
</html>
出现错误:找不到“http://www.springframework.org/security/tags ”的标签库描述符
这是我的 xml:
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:security="http://www.springframework.org/schema/security"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/security
http://www.springframework.org/schema/security/spring-security-4.0.xsd
">
<mvc:annotation-driven />
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/views/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
<!-- Filter for role checking -->
<bean id="filterSecurityInterceptor" class="org.springframework.security.web.access.intercept.FilterSecurityInterceptor">
<property name="authenticationManager" ref="authenticationManager"/>
<property name="accessDecisionManager" ref="httpRequestAccessDecisionManager"/>
<property name="securityMetadataSource">
<security:filter-security-metadata-source lowercase-comparisons="true" request-matcher="ant" use-expressions="true">
<security:intercept-url pattern="/pages/Security/**" access="permitAll"/>
<security:intercept-url pattern="/resources/**" access="permitAll"/>
<security:intercept-url pattern="/pages/Settings/**" access="hasRole('SETTINGS')"/>
<security:intercept-url pattern="/pages/Home/*" access="hasRole('HOME')"/>
<security:intercept-url pattern="/pages/Admin/**" access="hasRole('ADMINISTRATOR')"/>
<security:intercept-url pattern="/servlet/Download" access="hasAnyRole('DOWNLOAD','PREMIUM_ACCOUNT')"/>
<security:intercept-url pattern="/**" access="isAuthenticated()"/>
</security:filter-security-metadata-source>
</property>
</bean>
<!-- webInvocationPrivilegeEvaluator necessary to use <sec:authorized url="xx"> -->
<bean id="webInvocationPrivilegeEvaluator" class="org.springframework.security.web.access.DefaultWebInvocationPrivilegeEvaluator">
<constructor-arg ref="filterSecurityInterceptor"></constructor-arg>
</bean>
</beans>
我来回切换“秒”到“安全”和其他一些东西，但无法让它工作。预先感谢您的帮助。
最佳答案
将spring-security-taglibs-3.1.3.release.jar添加到项目的类路径中。
如果您使用Maven，请在 pom.xml 中添加此依赖项
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-taglibs</artifactId>
<version>3.1.3.RELEASE</version>
</dependency>
关于java - Spring 新手 - 使用 sec 标签不起作用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/42848117/