配置web.xml中的 Invalid content was found starting with element 'init-param'.错误

今天在搭建springmvc框架时，需要配置web.xml中的DispatcherServlet

初始化代码如下

<servlet>
      <servlet-name>chapter</servlet-name>
      <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
      <load-on-startup>1</load-on-startup>
      <init-param>
         <param-name>contextConfigLocation</param-name>
         <param-value>/WEB-INF/config/spring/chapter-servlet.xml</param-value>
      </init-param>
  </servlet>
  <servlet-mapping>
      <servlet-name>chapter</servlet-name>
      <url-pattern>/</url-pattern>
  </servlet-mapping>

其中的

<init-param>
         <param-name>contextConfigLocation</param-name>
         <param-value>/WEB-INF/config/spring/chapter-servlet.xml</param-value>
      </init-param>

负责初始化配置文件， 默认为/WEB-INF/$servlet-name$-servlet.xml

没想到打上去之后出现

 Invalid content was found starting with element 'init-param'. One of 
 '{"http://java.sun.com/xml/ns/javaee":enabled, "http://java.sun.com/xml/ns/javaee":async-
 supported, "http://java.sun.com/xml/ns/javaee":run-as, "http://java.sun.com/xml/ns/
 javaee":security-role-ref, "http://java.sun.com/xml/ns/javaee":multipart-config}' is expected.

错误，错误原因为

根元素<web-app>中的模式文件不对，
javaee只支持单个的config，要换成 j2ee



即将模式文件
"http://java.sun.com/xml/ns/javaee" 
改成

"http://java.sun.com/xml/ns/j2ee"


亲测不报错