web.xml配置文件中true报错的解决方案

 在写web.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 

解决方法一：
   在eclipse中配置xml
  1、 http://www.springmodules.org/schema/cache/springmodules-cache.xsd
   2、http://www.springmodules.org/schema/cache/springmodules-ehcache.xsd 
   然后再将这两个xsd加入到web.xml中就搞定了 ，如下面代码：

 "1.0" encoding="UTF-8"?>
 "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">

     OSWorkflow Example App
     OSWorkflow Example App




         SOAPWorkflow
         class>
             com.opensymphony.workflow.soap.SOAPWorkflowServlet
         class>



             This is the description of my J2EE component


             This is the display name of my J2EE component

         Osworkflow
         class>net.caiban.servlet.Osworkflowclass>



             This is the description of my J2EE component


             This is the display name of my J2EE component

         DoWorkflow
         class>net.caiban.servlet.DoWorkflowclass>



             This is the description of my J2EE component


             This is the display name of my J2EE component

         CreateWorkflow
         class>net.caiban.servlet.CreateWorkflowclass>






         SOAPWorkflow
         /soap/*



         Osworkflow
         /servlet/Osworkflow


         DoWorkflow
         /servlet/DoWorkflow


         CreateWorkflow
         /servlet/CreateWorkflow



         default.jsp
         index.jsp


         jdbc/oswf
         javax.sql.DataSource
         "com.mysql.jdbc.Driver" />
         "jdbc:mysql://localhost:3306/osworkflow" />
         "root" />
         "123465" />
         "20" />
         "30" />

解决方法二：

true是web.xml 3.0的新特性，只需将

改成：

即可解决。