classpath：从当前类路径下找配置文件； classpath*：从所有类路径下查找配置文件，包括当前类路径和jar包里
<context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:spring-*.xml</param-value> </context-param> <param-value>classpath:明确的文件名.xml</param-value> <param-value>classpath*:多个文件*.xml</param-value>例子：
<param-value>classpath*:spring-*.xml</param-value> <param-value>classpath:spring.xml</param-value>千万不要这么写，会出错！！！
<param-value>classpath:spring*.xml</param-value>