Error when configuring Spring security 4.2.1

Question

I'm trying to configure Spring security declaratively using the Spring 4. I created the file applicationContext-security.xml as the image below show

applicationContext-security

When I'm running the application I'm still having the same error like

Failed to instantiate [org.springframework.security.config.SecurityNamespaceHandler]: Constructor threw exception. Check Error Log for more details.

Did someone already faced that issue ? Could you please help me to fix this issue ? Thanks in advance.

Answer 1

也许您添加了多个版本的spring secuirty检查您的依赖关系，我遇到了这个问题，并通过删除其他依赖关系解决了这个问题。

Answer 2

Missing the spring-aop jar.

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-aop</artifactId>
    <version>4.3.5.RELEASE</version>
</dependency>