请教：小弟我的javabean是哪里不对
日期：2014-05-18 浏览次数：20711 次
请问：我的javabean是哪里不对？
我用的eclipse3.2 + tomcat6.0，之前单纯做jsp时是对的，所以设置肯定没有问题
index.jsp（存放在D:\MyWebSite\testJavaBean\）代码如下：
<%@ page contentType= "text/html; charset=gb2312 " %>
<%@page import= "myJavaBean.Person "%>
<jsp:useBean id= "person " class= "Person " scope= "page "> </jsp:useBean>
<jsp:setProperty name= "person " property= "name " value= "biwei "/>
<html>
<head> </head>
<body>
<% out.print(person.getName()); %>
</body>
</html>
Person.java(存放在D:\MyWebSite\testJavaBean\WEB-INF\src\myJavaBean\)代码如下：
package myJavaBean;
public class Person
{
String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
编译生成的Person.class在D:\MyWebSite\testJavaBean\WEB-INF\classes\myJavaBean
在ie中输入http://localhost:8080/testJavaBean/index.jsp后，错误如下：
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: /index.jsp(3,0) The value for the useBean class attribute Person 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.
----------------------------------------
我用的eclipse3.2 + tomcat6.0，之前单纯做jsp时是对的，所以设置肯定没有问题
index.jsp（存放在D:\MyWebSite\testJavaBean\）代码如下：
<%@ page contentType= "text/html; charset=gb2312 " %>
<%@page import= "myJavaBean.Person "%>
<jsp:useBean id= "person " class= "Person " scope= "page "> </jsp:useBean>
<jsp:setProperty name= "person " property= "name " value= "biwei "/>
<html>
<head> </head>
<body>
<% out.print(person.getName()); %>
</body>
</html>
Person.java(存放在D:\MyWebSite\testJavaBean\WEB-INF\src\myJavaBean\)代码如下：
package myJavaBean;
public class Person
{
String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
编译生成的Person.class在D:\MyWebSite\testJavaBean\WEB-INF\classes\myJavaBean
在ie中输入http://localhost:8080/testJavaBean/index.jsp后，错误如下：
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: /index.jsp(3,0) The value for the useBean class attribute Person 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.
----------------------------------------
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