小编Adi*_*a R的帖子

我正在尝试从自定义jsp标记传递一个java变量(我在这里使用struts2来从java类中获取变量).这是我得到的错误.

javax.servlet.ServletException: /pages/editBidForm.jsp(51,8) According to TLD or attribute directive in tag file, attribute parentId does not accept any expressions
    org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:515)
    org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:419)
    ....

这是我的jsp页面(部分)

<%@ taglib prefix="s" uri="/struts-tags" %>
<%@ taglib uri="/WEB-INF/taglib.tld" prefix="custom" %>
...
...
<table>
           <tr>
           <%

         String bidformoid=null;
         bidFormOid=request.getParameter("bidFormOid");
         %>

            <td> <custom:zorancustomtag  parentType = "BIDFORM" parentId = "<%= pageContext.getAttribute("bidFormOid") %>" /></td>   


           </tr>
        </table>

我无法正确传递parentId参数.我能够正确传递parentType参数,因为它只涉及传递字符串

这是taglib文件.

<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag 
Library 1.2//EN"
"http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd">
<taglib>
      <tlibversion>1.0</tlibversion>
      <jspversion>1.1</jspversion>
      <shortname>custom</shortname>
  <tag>
      <name>zorancustomtag</name>
      <tagclass>com.zoran.action.CustomizedTag</tagclass>
      <bodycontent>JSP</bodycontent> …

我有一个PostgreSQL表,其中我有一个inv_seq声明为的列serial.

我有一个Hibernate bean类来映射表.除此列外,所有其他列都已正确读取.这是Hibernate bean类中的声明:

....
  ....
        @GeneratedValue(strategy=javax.persistence.GenerationType.AUTO)
        @Column(name = "inv_seq")
        public Integer getInvoiceSeq() {
            return invoiceSeq;
        }

         public void setInvoiceSeq(Integer invoiceSeq) {
        this.invoiceSeq = invoiceSeq;
    }
  ....
....

声明是否正确？
我能够看到数据库中列生成的序列号,但我无法在java类中访问它们.

请帮忙.