cvc-complex-type.2.4.a: Invalid content was found starting with element

在写xml的时候又一次总是报cvc-complex-type.2.4.a: Invalid content was found starting with element 错误，还出现小红叉，在网上找了很多，有说是把报红叉的代码写在<jsp-config></jsp-config>之间，试了之后发现完全没用。
   后来在外文网站上找到了一个方法就把问题解决了
   在eclipse中配置xmlcatalog
  1、 Location: D:\eclipse3.3\springmodules-cache.xsd    （springmodules-cache.xsd在本地的路径）
   Key Type: Namespace Name
   Key: http://www.springmodules.org/schema/cache/springmodules-  cache.xsd
   2、Location: D:\eclipse3.3\springmodules-ehcache.xsd（本地路径）
    Key Type: Schema Location
    Key: http://www.springmodules.org/schema/cache/springmodules-  ehcache.xsd
   然后再将这连个xsd加入到web.xml中就搞定了
后面可下载springmodules-  cache.xsd 和springmodules-ehcache.xsd  

    <?xml version="1.0" encoding="UTF-8"?>      <web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance  http://www.springmodules.org/schema/cache/springmodules-cache.xsd http://www.springmodules.org/schema/cache/springmodules-ehcache.xsd"    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee           http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd                ">          <!--OS Work Flow -->          <display-name>OSWorkflow Example App</display-name>          <description>OSWorkflow Example App</description>                            <servlet>              <servlet-name>SOAPWorkflow</servlet-name>              <servlet-class>                  com.opensymphony.workflow.soap.SOAPWorkflowServlet              </servlet-class>          </servlet>          <servlet>              <description>                  This is the description of my J2EE component              </description>              <display-name>                  This is the display name of my J2EE component              </display-name>              <servlet-name>Osworkflow</servlet-name>              <servlet-class>net.caiban.servlet.Osworkflow</servlet-class>          </servlet>          <servlet>              <description>                  This is the description of my J2EE component              </description>              <display-name>                  This is the display name of my J2EE component              </display-name>              <servlet-name>DoWorkflow</servlet-name>              <servlet-class>net.caiban.servlet.DoWorkflow</servlet-class>          </servlet>          <servlet>              <description>                  This is the description of my J2EE component              </description>              <display-name>                  This is the display name of my J2EE component              </display-name>              <servlet-name>CreateWorkflow</servlet-name>              <servlet-class>net.caiban.servlet.CreateWorkflow</servlet-class>          </servlet>                                  <servlet-mapping>              <servlet-name>SOAPWorkflow</servlet-name>              <url-pattern>/soap/*</url-pattern>          </servlet-mapping>                <servlet-mapping>              <servlet-name>Osworkflow</servlet-name>              <url-pattern>/servlet/Osworkflow</url-pattern>          </servlet-mapping>          <servlet-mapping>              <servlet-name>DoWorkflow</servlet-name>              <url-pattern>/servlet/DoWorkflow</url-pattern>          </servlet-mapping>          <servlet-mapping>              <servlet-name>CreateWorkflow</servlet-name>              <url-pattern>/servlet/CreateWorkflow</url-pattern>          </servlet-mapping>                <welcome-file-list>              <welcome-file>default.jsp</welcome-file>              <welcome-file>index.jsp</welcome-file>          </welcome-file-list>          <resource-ref>              <res-ref-name>jdbc/oswf</res-ref-name>              <res-type>javax.sql.DataSource</res-type>              <init-param driverClassName="com.mysql.jdbc.Driver" />              <init-param url="jdbc:mysql://localhost:3306/osworkflow" />              <init-param user="root" />              <init-param password="123465" />              <init-param max-connections="20" />              <init-param max-idle-time="30" />          </resource-ref>          <!--OS Work Flow -->      </web-app>