初学jsp+javabean时的有关问题找不到class

初学jsp+javabean时的问题找不到class
我的一个JSP+Javabean的练习放在如下路径
D:\J2ee\Apache Software Foundation\Tomcat 6.0\webapps\Jsp\exercises
useBean -folder 下面
-[WEB-INF] ---> Folder
-classes ----> folder
- tax ----> folder
-TaxRate.class
- TaxRate.java

-UseBean.jsp
-settax.jsp

UseBean.jsp
-----------------

HTML code


<html>
<body>
<%@ page language="java" %>
<jsp:useBean id="taxbean" scope="application" class="tax.TaxRate" />
<jsp:setProperty name="taxbean" property="*"/>
产品:<jsp:getProperty name="taxbean" property="product"/>
<br>

税率:<jsp:getProperty name="taxbean" property="rate"/>
</body>
</html>

settax.jsp
-----------------------

HTML code


<html>
<head>
<title>设置产品税率</title>
</head>
<body bgcolor="#fffffr">
<FORM method="post" action="UseBean.jsp">
 <TABLE border=0 cellspacing=1 cellpadding=5>
  <TR>
   <td width="100">&nbsp;</td>
   <td align="right"><H1><FONT color="red">设置产品税率</FONT></H1></TD>
  </TR>
  <TR>
   <td width="100" align="right"><B><FONT color="blue">产品:</FONT></B></TD>
   <td align="left"><INPUT TYPE="text" name="product" size="30"></TD>
  </TR>
  <TR>
   <td width="100" align="right"><B><FONT color="blue">税率:</FONT></B></TD>
   <td align="left"><INPUT TYPE="text" name="rate" size="30"></TD>
  </TR>
  <TR>
   <td width="100">&nbsp;</TD>
   <td align="right"></TD>
  </TR>
  <TR>
   <TD width="100">&nbsp;</td>
   <td align="left"><input type="submit" value="Submit"></td>
  </tr>
 </table>
 </FORM>
 </BODY>
 </HTML>

TaxRate.java
------------------

Java code


package tax;
  public class TaxRate
  {
      double rate;
      String product;

      public TaxRate(){

      }

      public void setProduct(String ProductName){ this.product=ProductName;  }

      public String getProduct(){ return (this.product);  }

      public void setRate(double rateValue){ this.rate=rateValue;      }

      public double getRate(){ return this.rate;}

  }

..\Tomact6.0\conf\Server.xml 中<host 部分的缺省如下

XML code



      <Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true"
            xmlValidation="false" xmlNamespaceAware="false">

在ie 中进入以下页面并输入产品: test , 税率: 17.0
http://localhost:8080/Jsp/exercises/useBean/settax.jsp

提交后error message 如下：

org.apache.jasper.JasperException: /exercises/useBean/UseBean.jsp(4,0) The value for the useBean class attribute tax.TaxRate is invalid.
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)

初学jsp+javabean时的有关问题 找不到class

相关推荐

初学jsp+javabean时的有关问题找不到class