org.apache.jasper.JasperException错误，又一次出现在我的视野

JSP代码如下：<%@ page language="java" contentType="text/html; charset=GBK"
    pageEncoding="GBK"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GBK">
<title>Insert title here</title>
</head>
<body>
<center>
<!-- 页码判断 -->
<c:if test="${currentpageno>=1}">
<a href="GetLimitGoods?currentpageno=1">首页</a>
<a href="GetLimitGoods?currentpageno=${currentpageno-1}">上一页</a>
</c:if>
<c:if test="${currentpageno==1 }">
<a href="GetLimitGoods?currentpageno=${currentpageno+1 }">下一页</a>
<a href="GetLimitGoods?currentpageno=${PageCount}">下一页</a>
</c:if>
<!-- 数据表展示 -->
<table width="80%" border="1" height="56">
<tr align="center">
<td>
商品编号
</td>
<td>
商品名称
</td>
<td>
商品价格
</td>
<!-- 循环展示数据 -->
<c:forEach var="goods" items="${GoodsList}">
<tr align="center">
<td>${goods.goodsid }</td>
<td>${goods.goodsname }</td>
</tr>
</c:forEach>
</tr>
</table>
</center>
</body>
</html>
servletpackage servlet;import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import bean.Goods;import dao.Dao;public class GetLimitGoods extends HttpServlet {

private static final long serialVersionUID = 1L; public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
request.setCharacterEncoding("GBK");
String pageno = request.getParameter("currentpageno");
int currentpageno = 1;
if(pageno != null ) {
currentpageno = Integer.parseInt(pageno);
}
ArrayList<Goods> GoodsList = Dao.getGoodsList(currentpageno);
request.setAttribute("GoodList", GoodsList);
request.setAttribute("currentpageno", currentpageno);
request.setAttribute("PageCount", Dao.getPageCount());
request.getRequestDispatcher("/LimiteGoods.jsp").forward(request, response);


}}不明白错误在哪里，请指教。

解决方案 »

  1.   


    HTTP Status 500 - --------------------------------------------------------------------------------type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception org.apache.jasper.JasperException: /LimiteGoods.jsp(13,0) According to TLD or attribute directive in tag file, attribute test does not accept any expressions
    org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
    org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
    org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:148)
    org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:1174)
    org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:821)
    org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1530)
    org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
    org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2411)
    org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2417)
    org.apache.jasper.compiler.Node$Root.accept(Node.java:495)
    org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
    org.apache.jasper.compiler.Validator.validateExDirectives(Validator.java:1736)
    org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:183)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:332)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:312)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:299)
    org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    note The full stack trace of the root cause is available in the Apache Tomcat/6.0.20 logs.
    --------------------------------------------------------------------------------Apache Tomcat/6.0.20
    这是报错信息
      

  2.   

    jsp页面最上面取值是不是丢了？
    <!-- 页码判断 -->
    <c:if test="${currentpageno>=1}">
        <a href="GetLimitGoods?currentpageno=1">首页</a>
        <a href="GetLimitGoods?currentpageno=${currentpageno-1}">上一页</a>
    </c:if>
    <c:if test="${currentpageno==1 }">
        <a href="GetLimitGoods?currentpageno=${currentpageno+1 }">下一页</a>
        <a href="GetLimitGoods?currentpageno=${PageCount}">下一页</a>    
    </c:if>
    判断对吗？如果当前页数不等于1呢如果是第二页点击翻页呢,还会进判断吗
      

  3.   

    解决According to TLD or attribute directive in tag file
    http://hi.baidu.com/wtltsdwqt/blog/item/144bb5125a1421c8c2fd782e.html
      

  4.   

    在代码最前面加上   <%@ page isELIgnored ="true" %>