SpringSecurity下报错A universal match pattern ('/**') is defined before other patterns......

今天在写SpringSecurity框架的课后代码出现了如下问题（启动tomcat报错）：
Caused by: java.lang.IllegalArgumentException: A universal match pattern (’/**’) is defined before other patterns in the filter chain, causing them to be ignored. Please check the ordering in your security:http namespace or FilterChainProxy bean configuration.
检查后发现是web.xml配置加载类路径配置文件顺序的问题。

 <!-- 配置加载类路径的配置文件 -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath*:applicationContext.xml,classpath*:spring-security.xml</param-value>
  </context-param>

应该改为:

 <!-- 配置加载类路径的配置文件 -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>
      classpath:spring-security.xml
      classpath:applicationContext.xml
    </param-value>
  </context-param>