今天在做一个SSH整合测验时发现了一个异常（According to TLD or attribute directive in tag file）

严重: Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: /WEB-INF/page/employee.jsp(24,3) According to TLD or attribute directive in tag file, attribute items does not accept any expressions

页面上的源码如下：

  
    

   
      1 
   
     <%
   
     @ page language
   
     =
   
     "
   
     java
   
     "
   
      
   
     import
   
     =
   
     "
   
     java.util.*
   
     "
   
      pageEncoding
   
     =
   
     "
   
     UTF-8
   
     "
   
     %>
   
     

   
      2 
   
      
   
     <%
   
     @ taglib uri
   
     =
   
     "
   
     /struts-tags
   
     "
   
      prefix
   
     =
   
     "
   
     s
   
     "
   
      
   
     %>
   
     

   
      3 
   
      
   
     <%
   
     @ taglib uri
   
     =
   
     "
   
     http://java.sun.com/jstl/core
   
     "
   
      prefix
   
     =
   
     "
   
     c
   
     "
   
      
   
     %>
   
     

   
      4 
   
      
   
     <!
   
     DOCTYPE HTML PUBLIC 
   
     "
   
     -//W3C//DTD HTML 4.01 Transitional//EN
   
     "
   
     >
   
     

   
      5 
   
     
   
     <
   
     html
   
     >
   
     

   
      6 
   
      
   
     <
   
     head
   
     >
   
     

   
      7 
   
      

   
      8 
   
      
   
     <
   
     title
   
     >
   
     employee
   
     </
   
     title
   
     >
   
     

   
      9 
   
      

   
     10 
   
      
   
     <
   
     meta http
   
     -
   
     equiv
   
     =
   
     "
   
     pragma
   
     "
   
      content
   
     =
   
     "
   
     no-cache
   
     "
   
     >
   
     

   
     11 
   
      
   
     <
   
     meta http
   
     -
   
     equiv
   
     =
   
     "
   
     cache-control
   
     "
   
      content
   
     =
   
     "
   
     no-cache
   
     "
   
     >
   
     

   
     12 
   
      
   
     <
   
     meta http
   
     -
   
     equiv
   
     =
   
     "
   
     expires
   
     "
   
      content
   
     =
   
     "
   
     0
   
     "
   
     >
   
     

   
     13 
   
     

   
     14 
   
      
   
     </
   
     head
   
     >
   
     

   
     15 
   
      

   
     16 
   
      
   
     <
   
     body
   
     >
   
     

   
     17 
   
      ONGL:

   
     18 
   
      
   
     <
   
     s:iterator value
   
     =
   
     "
   
     #request.employees
   
     "
   
     >
   
     

   
     19 
   
      
   
     <
   
     s:property value
   
     =
   
     "
   
     username
   
     "
   
     />
   
     ,
   
     <
   
     s:property value
   
     =
   
     "
   
     password
   
     "
   
     />
   
     ,
   
     <
   
     s:property value
   
     =
   
     "
   
     gender
   
     "
   
     />
   
      

   
     20 
   
      
   
     </
   
     s:iterator
   
     >
   
     

   
     21 
   
      
   
     <
   
     br
   
     />
   
     

   
     22 
   
      

   
     23 
   
      JSTL/EL:

   
     24 
   
      
   
     <
   
     c:forEach items
   
     =
   
     "
   
     ${employees}
   
     "
   
      var
   
     =
   
     "
   
     employee
   
     "
   
     >
   
     

   
     25 
   
      ${employee.username}, ${employee.password}, ${employee.gender}
   
     <
   
     br
   
     />
   
     

   
     26 
   
      
   
     </
   
     c:forEach
   
     >
   
     

   
     27 
   
      
   
     </
   
     body
   
     >
   
     

   
     28 
   
     
   
     </
   
     html
   
     >
  
    

异常提示，在第24行的时候发生错误，说不接受任何表达式，后来在网上找到一个解决方案，说是版本不支持EL，所以把

   
     

    
      <%
    
      @ taglib uri
    
      =
    
      "
    
      http://java.sun.com/jstl/core
    
      "
    
       prefix
    
      =
    
      "
    
      c
    
      "
    
       
    
      %>
   
     

改为：

   
     

    
      <%
    
      @ taglib uri
    
      =
    
      "
    
      http://java.sun.com/jstl/core_rt
    
      "
    
       prefix
    
      =
    
      "
    
      c
    
      "
    
      %>
   
     

一定要记得加引号!

就输出正常了。