试验一个小小的javabean程序 可是老是出现错误 代码如下：
TestBean.java:
package test;
public class TestBean {
String name;
public TestBean(){}
public void setName(String name)
{
this.name=name;
}
public String getName()
{
return this.name;
}
}
index.jsp
<%@ page language= "java " import= "test.TestBean " %>
<html>
<head>
<title> My JSP 'index.jsp ' starting page </title>
</head>
<body>
<jsp:useBean id= "testBeanEx " scope= "page " class= "TestBean "/>
</body>
</html>
运行信息：
HTTP Status 500 -
--------------------------------------------
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: /WebRoot/index.jsp(7,1) The value for the useBean class attribute TestBean is invalid.
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.Generator$GenerateVisitor.visit(Generator.java:1200)
org.apache.jasper.compiler.Node$UseBean.accept(Node.java:1155)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2336)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2386)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2392)
org.apache.jasper.compiler.Node$Root.accept(Node.java:489)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2336)
org.apache.jasper.compiler.Generator.generate(Generator.java:3394)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:210)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:306)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:286)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:273)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:566)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:308)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.10 logs.
--------------------------------------------
Apache Tomcat/6.0.10
tomcat6.0 下localhost：8080运行正常 其中实例运行正常 HelloWorld.java运行正常
配置了好久 就是不知道问题在哪里 高手指点下吧
------解决方案--------------------
<jsp:useBean id= "testBeanEx " scope= "page " class= "TestBean "/>