Spring XML 错误：无法解析占位符“cas.server.host”

Question

我正在尝试设置我的 Spring CAS.XML 文件，但我不知道为什么该文件没有看到我在文件中设置的值：

谁能告诉我我收到以下错误：

2012-09-10 11:16:00,396 ERROR org.springframework.web.context.ContextLoader - Context initialization failed
org.springframework.beans.factory.BeanDefinitionStoreException: Invalid bean definition with name 'requestSingleLogoutFilter' defined in ServletContext resource [/WEB-INF/spring/CAS-Local.xml]: Could not resolve placeholder 'cas.server.host'
    at org.springframework.beans.factory.config.PlaceholderConfigurerSupport.doProcessProperties(PlaceholderConfigurerSupport.java:209)

如果你看我确实在文件末尾设置了值...

这是我的 CAS-Local.xml 文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
    xmlns:security="http://www.springframework.org/schema/security"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:util="http://www.springframework.org/schema/util"

    xsi:schemaLocation="http://www.springframework.org/schema/beans 
                            http://www.springframework.org/schema/beans/spring-beans.xsd
                            http://www.springframework.org/schema/context 
                            http://www.springframework.org/schema/context/spring-context-3.1.xsd
                            http://www.springframework.org/schema/tx
                            http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
                            http://www.springframework.org/schema/jdbc
                            http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
                            http://www.springframework.org/schema/security
                            http://www.springframework.org/schema/security/spring-security-3.1.xsd
                            http://www.springframework.org/schema/util 
                            http://www.springframework.org/schema/util/spring-util-3.1.xsd">


        <security:http entry-point-ref="casEntryPoint"
        use-expressions="true">
        <security:intercept-url pattern="/" access="permitAll" />

        <security:intercept-url pattern="/index.jsp"
            access="permitAll" />
        <security:intercept-url pattern="/cas-logout.jsp"
            access="permitAll" />
        <security:intercept-url pattern="/casfailed.jsp"
            access="permitAll" />

        <security:intercept-url access="hasRole('ROLE_MEMBER_INQUIRY')"
            pattern="/visit**" />

        <security:custom-filter ref="requestSingleLogoutFilter"
            before="LOGOUT_FILTER" />
        <security:custom-filter ref="singleLogoutFilter"
            before="CAS_FILTER" />
        <security:custom-filter ref="casFilter"
            position="CAS_FILTER" />


        <security:logout logout-success-url="/cas-logout.jsp" />
    </security:http>

    <security:authentication-manager alias="authManager">
        <security:authentication-provider
            ref="casAuthProvider" />
    </security:authentication-manager>



    <security:ldap-server id="ldapServer"
        url="ldaps://dvldap01.uftwf.dev:636/dc=uftwf,dc=dev" manager-dn="cn=xxx,dc=uftwf,dc=dev"
        manager-password="xxx" />

    <security:ldap-user-service id="userServiceLDAP"
        server-ref="ldapServer" user-search-base="ou=webusers"
        user-search-filter="(uid={0})" group-search-base="ou=groups"
        group-role-attribute="cn" group-search-filter="(uniqueMember={0})"
        role-prefix="ROLE_" />

    <!-- This filter handles a Single Logout Request from the CAS Server -->
    <bean id="singleLogoutFilter" class="org.jasig.cas.client.session.SingleSignOutFilter" />
    <!-- This filter redirects to the CAS Server to signal Single Logout should 
        be performed -->
    <bean id="requestSingleLogoutFilter"
        class="org.springframework.security.web.authentication.logout.LogoutFilter"
        p:filterProcessesUrl="/j_spring_cas_security_logout">
        <constructor-arg
            value="https://${cas.server.host}/cas-server-webapp/logout" />
        <constructor-arg>
            <bean
                class="org.springframework.security.web.authentication.logout.SecurityContextLogoutHandler" />
        </constructor-arg>
    </bean>

    <bean id="serviceProperties" class="org.springframework.security.cas.ServiceProperties"
        p:service="http://wcmisdlin07.uftmasterad.org:8080/SchoolVisitLocked/j_spring_cas_security_check"
        p:authenticateAllArtifacts="true" />

    <bean id="casEntryPoint"
        class="org.springframework.security.cas.web.CasAuthenticationEntryPoint"
        p:serviceProperties-ref="serviceProperties"
        p:loginUrl="https://6dvews01.uftwf.dev:8443/cas-server-webapp/login" />

    <bean id="casFilter"
        class="org.springframework.security.cas.web.CasAuthenticationFilter"
        p:authenticationManager-ref="authManager" p:serviceProperties-ref="serviceProperties"
        p:proxyGrantingTicketStorage-ref="pgtStorage"
        p:proxyReceptorUrl="/j_spring_cas_security_proxyreceptor">
        <property name="authenticationDetailsSource">
            <bean
                class="org.springframework.security.cas.web.authentication.ServiceAuthenticationDetailsSource" />
        </property>

        <property name="authenticationFailureHandler">
            <bean
                class="org.springframework.security.web.authentication.SimpleUrlAuthenticationFailureHandler"
                p:defaultFailureUrl="/casfailed.jsp" />
        </property>


        <property name="authenticationSuccessHandler">
            <bean
                class="org.springframework.security.web.authentication.SavedRequestAwareAuthenticationSuccessHandler"
                p:defaultTargetUrl="/visit" />
        </property>
    </bean>
    <!-- NOTE: In a real application you should not use an in memory implementation. 
        You will also want to ensure to clean up expired tickets by calling ProxyGrantingTicketStorage.cleanup() -->
    <bean id="pgtStorage"
        class="org.jasig.cas.client.proxy.ProxyGrantingTicketStorageImpl" />
    <bean id="casAuthProvider"
        class="org.springframework.security.cas.authentication.CasAuthenticationProvider"
        p:serviceProperties-ref="serviceProperties" p:key="casAuthProviderKey">
        <property name="authenticationUserDetailsService">
            <bean
                class="org.springframework.security.core.userdetails.UserDetailsByNameServiceWrapper">
                <constructor-arg ref="userServiceLDAP" />
            </bean>
        </property>



        <property name="ticketValidator">
            <bean class="org.jasig.cas.client.validation.Cas20ServiceTicketValidator">
                <constructor-arg index="0"
                    value="https://6dvews01.uftwf.dev:8443/cas-server-webapp" />
            </bean>
        </property>
    </bean>

    <!-- Configuration for the environment can be overriden by system properties -->
    <context:property-placeholder
        system-properties-mode="OVERRIDE" properties-ref="environment" />

    <util:properties id="environment">
        <prop key="cas.service.host">wcmisdlin07.uftmasterad.org:8443</prop>
        <prop key="cas.server.host">6dvews01.uftwf.dev:8443</prop>
    </util:properties>
</beans>

Answer 1

您使用占位符来表示“${cas.server.host}”等必须在属性文件中定义并由 spring 解析的属性。在您的类路径中创建一个新的属性文件“your.properties”并将其添加到您的上下文中：

<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location">
    <value>your.properties</value>
</property>
</bean>

你的属性：

cas.server.host=http://localhost/abc