java.lang.ClassCastException: com.infoair.giis.hibernate.mapping.GiisQueryParameter
org.apache.jsp.QueryParameterDisplayManager_jsp._jspService(QueryParameterDisplayManager_jsp.java:92)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jsp.QueryParameterDisplayManager_jsp._jspService(QueryParameterDisplayManager_jsp.java:92)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
解决方案 »
- 打算从ASP.NET转行到JSP了,请问有什么捷径和注意的吗?数据库和编程软件用什么搭配?
- File--- getRequest().getParameter转码问题,????????
- 请问在JSP中如何建立数据连接?如何执行查询?我没有这方面的资料
- 帮忙看一下这段代码好吗?为什么会出错啊,错误在哪里?
- 求大神指点!!streams type cannot be used in batching;
- 帮我看看,怎么有错误??
- 带中文参数的网页传递后出现乱码问题?
- 望大家帮忙!
- 可视的javabean怎样嵌入jsp?
- join on相关问题
- 提示在"standard.jar"里找不到"META-INF/c.tld"。到底应该如何配置?
- 高分求Tomcat5.0.28下Connection Pool配置
Iterator it=mylist.iterator();
while(it.hasNext())
{Object[] results=(Object[])it.next();
.....}
我这里面有类型转换的问题么?谢谢,请帮忙看看!
public class DBGiisQueryParameter {
public List getTableNames(){
Session session = null;
Transaction tx = null;
try {
session = HibernateSessionFactory.getSession();
tx = session.beginTransaction();
List list = session.createQuery("from GiisQueryParameter").list();
//tx.commit();
return list;
} catch (HibernateException e) {
e.printStackTrace(); if (tx != null)
try {
tx.rollback();
} catch (HibernateException e1) {
e1.printStackTrace();
}
return null;
} finally {
try {
if (session != null)
HibernateSessionFactory.closeSession();
} catch (HibernateException e1) {
e1.printStackTrace();
}
}
}
}
实在不行print 一下 it.next().getClass().getName() 看看到底是什么class啦
不知大家可否给我一个hibernate增删改查的例子呢?
Iterator it=mylist.iterator(); 2
while(it.hasNext()) 3
{Object[] results=(Object[])it.next(); 4
System.out.print(results[0]);
...}
tx.commit();
我是按夏欣的hibernate的例子做的,只是把2-4行写在网页中,通过 public List getTableNames()返回List,
<%....
List mylist=qp.getTableNames();
Iterator it=mylist.iterator();
while(it.hasNext())
{Object[] results=(Object[])it.next();%>
<option value="<%=results[1]%>"><%=results[1]%></option>
<%
.....}%>