我对Spring安全性感到困惑，当我打开登录页面时，即使在提交表单之前，它也会显示以下错误消息。我不知道如何解决这个问题。
Your login attempt was not successful due to
我-servlet.xml中
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:oxm="http://www.springframework.org/schema/oxm" xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd
http://www.springframework.org/schema/oxm http://www.springframework.org/schema/oxm/spring-oxm-3.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
.....
<bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:8889/myproject" />
<property name="username" value="test" />
<property name="password" value="test" />
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"
depends-on="dataSource">
<property name="dataSource" ref="dataSource" />
<property name="packagesToScan" value="com.myproject.model" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.format_sql">true</prop>
<prop key="hibernate.use_sql_comments">true</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
</bean>
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="get*" read-only="true" />
<tx:method name="find*" read-only="true" />
<tx:method name="*" />
</tx:attributes>
</tx:advice>
<aop:config>
<aop:pointcut id="userServicePointCut"
expression="execution(* com.myproject.service.*Service.*(..))" />
<aop:advisor advice-ref="txAdvice" pointcut-ref="userServicePointCut" />
</aop:config>
</beans>
弹簧security.xml文件
<beans:beans xmlns="http://www.springframework.org/schema/security"
xmlns:beans="http://www.springframework.org/schema/beans" 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-3.0.xsd
http://www.springframework.org/schema/security
http://www.springframework.org/schema/security/spring-security-3.2.xsd">
<beans:import resource='login-service.xml' />
<http auto-config="true" use-expressions="true">
<intercept-url pattern="/" access="permitAll" />
<intercept-url pattern="/member**" access="hasRole('ROLE_MEMBER')" />
<intercept-url pattern="/signin" access="permitAll" />
<access-denied-handler error-page="/403" />
<form-login login-page="/signin" default-target-url="/index"
authentication-failure-url="/signin?error" username-parameter="username"
password-parameter="password" />
<logout logout-success-url="/login?logout" />
<!-- enable csrf protection -->
<csrf />
</http>
<authentication-manager>
<authentication-provider user-service-ref="myMemberDetailsService">
<password-encoder hash="bcrypt" />
</authentication-provider>
</authentication-manager>
</beans:beans>
登录-service.xml中
<beans xmlns="http://www.springframework.org/schema/beans"
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-3.0.xsd">
<bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:8889/myproject" />
<property name="username" value="test" />
<property name="password" value="test" />
</bean>
</beans>
登录页面
<c:if test="${not empty SPRING_SECURITY_LAST_EXCEPTION}">
<font color="red"> Your login attempt was not successful due
to <br />
<br /> <c:out value="${SPRING_SECURITY_LAST_EXCEPTION.message}" />.
</font>
</c:if>
<div class="row">
<div class="col-sm-7">
<div>
<div>
<h2 class="panel-title">Log-in</h2>
</div>
<c:if test="${not empty param.error}">
Invalid username and password.
</c:if>
<c:if test="${not empty error}">
<div class="error">${error}</div>
</c:if>
<c:if test="${not empty msg}">
<div class="msg">${msg}</div>
</c:if>
<div>
<form id="form-login" role="form" method="post"
action="<c:url value='/j_spring_security_check' />"
class="relative form form-default">
<input type="hidden" name="${_csrf.parameterName}"
value="${_csrf.token}" />
<p class="leyend">* Required information</p>
<div class="form-group clearfix">
<label for="input-email-01" class="col-xs-12 control-label">Email
*</label>
<div class="input-group col-sm-10">
<span class="input-group-addon">@</span> <input type="email"
name="username" id="input-email-01" class="form-control"
placeholder="Enter email" required>
</div>
</div>
<div class="form-group clearfix">
<label for="input-password-01" class="col-xs-12 control-label">Password
*</label>
<div class="col-sm-10">
<input type="password" name="password" id="input-password-01"
class="form-control" placeholder="Enter password" required>
</div>
</div>
<div class="form-group clearfix">
<div class="col-xs-12">
<button type="submit" class="btn btn-action btn-validate">Log
In</button>
</div>
</div>
</form>
答案 0 :(得分：1)
这可能是因为SPRING_SECURITY_LAST_EXCEPTION是一个始终包含值的常量。改变
<c:if test="${not empty SPRING_SECURITY_LAST_EXCEPTION}">
到
<c:if test="${not empty SPRING_SECURITY_LAST_EXCEPTION.message}">
可能有帮助。