jsp sql和javabean

[xusp_]

我是新手 下面是我运行时出现的错误提示
大侠 帮我分析分析是哪地方的出了问题 谢谢

HTTP Status 500 -

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type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: /index/index.jsp(12,0) The value for the useBean class attribute database1.dbbean 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$GenerateVisitor.visit(Generator.java:1175)
org.apache.jasper.compiler.Node$UseBean.accept(Node.java:1117)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2166)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2216)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2222)
org.apache.jasper.compiler.Node$Root.accept(Node.java:457)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2166)
org.apache.jasper.compiler.Generator.generate(Generator.java:3321)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:199)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:296)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:277)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:265)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:302)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)


note The full stack trace of the root cause is available in the Apache Tomcat/5.5.26 logs.


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Apache Tomcat/5.5.26

[碰碰real]

index.jsp(12,0) The value for the useBean class attribute database1.dbbean is invalid.

你的index.jsp的第12行出现了错误

看看这里
http://hi.baidu.com/zpdbdh/blog/item/2a4d154d367ef9fed62afc4b.html

[xusp_]

我想javabean存放的位置出问题了 生成的.class文件应该存放什么位置 ？

[碰碰real]

比如说你的.java文件是 A.java中应有这样一句：package hello(必须有这一句，恩，写在开头)；
那么.class文件就自动生成在hello包中，就放在hello包中就可以了。

jsp文件中的应写<jsp:useBean id="....." class="hello.A" scope=".....">

[chward]

使用Tomcat 常见 "The value for the useBean class attribute is invalid" 错误。该错误是指 JSP 中给定的 useBean 标签的 class 属性的值无效（不是 Bean 的属性值）。