Spring Security - 无法找到 Spring NamespaceHandler - 安全性答案

【问题标题】：Spring Security - Unable to locate Spring NamespaceHandler -- securitySpring Security - 无法找到 Spring NamespaceHandler - 安全性
【发布时间】：2017-05-15 23:42:10
【问题描述】：

我有异常：org.springframework.beans.factory.parsing.BeanDefinitionParsingException：配置问题：找不到 XML 模式命名空间的 Spring NamespaceHandler [http://www.springframework.org/schema/security] 违规资源：ServletContext资源[/WEB-INF/spring/security.xml]

谷歌几分钟，说我，我需要添加依赖——spring-security-config。我有这个，最新版本 4.2.1，但有例外。

security.xml

<?xml version="1.0" encoding="UTF-8"?>
<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-4.1.xsd
http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-4.0.xsd">

<beans:bean name="standartEncrypt"
            class="org.springframework.security.crypto.password.StandardPasswordEncoder" >
    <beans:constructor-arg name="secret" value="3u6gui" />
</beans:bean>

<http auto-config="true" >
    <intercept-url pattern="/notes/**" access="authenticated" />
    <intercept-url pattern="/register" requires-channel="https" />
    <intercept-url pattern="/" access="permitAll" />
    <intercept-url pattern="/accessDenied" access="permitAll" />
    <intercept-url pattern="/duplicate" access="permitAll" />
    <intercept-url pattern="/notExists" access="permitAll" />

    <access-denied-handler error-page="/accessDenied" />

    <logout
            logout-success-url="/index"
            logout-url="/notes/{username}/exit"
    />
    <form-login
            authentication-failure-url="/accessDenied"
            login-page="/register"
            login-processing-url="/register"
            password-parameter="password"
            username-parameter="username"
    />
    <remember-me data-source-ref="dataSource" />

    <session-management session-fixation-protection="newSession">
        <concurrency-control max-sessions="1" error-if-maximum-exceeded="true" />
    </session-management>
</http>

<authentication-manager >
    <authentication-provider>
        <password-encoder ref="standartEncrypt" />
        <jdbc-user-service data-source-ref="dataSource" users-by-username-query="SELECT username, password FROM Users WHERE username = ?"/>
    </authentication-provider>
</authentication-manager>

<global-method-security jsr250-annotations="enabled" secured-annotations="enabled" />

行家

<dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-config</artifactId>
    <version>4.2.1.RELEASE</version>
</dependency>

【问题讨论】：

标签： java spring spring-security

【解决方案1】：

这可能是一个未解决的依赖关系。在没有看到您的 Maven pom 或项目配置的情况下，Spring Security 的最低要求是：

<dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-web</artifactId>
    <version>4.2.1.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-config</artifactId>
    <version>4.2.1.RELEASE</version>
</dependency>

如果您使用的是 Spring Tool Suite 或 Eclipse，请务必右键单击您的项目，然后选择 Maven -> Update Project 并执行完整的 clean install

【讨论】：