配置springMVC时出现的问题

项目结构如图:

aaarticlea/png;base64,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" alt="" />

配置文件片段:

 <servlet>
<servlet-name>springMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMVC</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

报错: Could not open ServletContext resource [/spring-servlet.xml]
查询了半天原因竟然是:漏加了 classpath:
那么classpath究竟是干什么的呢?

web项目编译后会有一个classpath路径。编译后的class文件,资源文件,依赖文件等都会放在这个路径下。param-value制定的这个配置文件时spring的配置文件,classpath意思就是说这个配置文件在classpath路径下。classpath就是代表  /WEB-INF /classes/  这个路径。
同时注意classpath 和 classpath* 区别:
classpath:只会到你的class路径中查找找文件;
classpath*:不仅包含class路径,还包括jar文件中(class路径)进行查找

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