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分享beans出现不能找到！（附图）____谢！困扰好久了
MyBeans.java
－－－－－－－－－－－－－－
package cn;
public class MyBeans
{
private int a=100;
public int geta()
{
return a;
}
}
所放的目录是（如图）
http://www.chinajavaworld.net/non-cgi/usr/2/2_10972.jpg
mybeans.jsp
----------------------------
<HTML>
<HEAD>
<TITLE>JSP测试页面---HelloWorld!</TITLE>
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
</HEAD>
<BODY>
<%
out.println("<h1>Hello World!<br>世界，你好！</h1>");
%>
<br>
<jsp:useBean id="Mybean" scope="application" class="cn.Mybeans" />
<jsp:getProperty name="Mybean" property="directory" />
<% Mybean.geta(); %>
</BODY>
</HTML>
所放的目录是
http://127.0.0.1:8080/examples/mybeans.jsp
结果出现这样的错误，不能找到beans
Exception Report:
javax.servlet.ServletException: cn/Mybeans (wrong name: cn/MyBeans)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:415)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:251)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:977)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:196)
at org.apache.catalina.valves.ValveBase.invokeNext(ValveBase.java:242)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:464)
at org.apache.catalina.valves.ValveBase.invokeNext(ValveBase.java:242)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:242)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:975)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2041)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.valves.ValveBase.invokeNext(ValveBase.java:242)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:414)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:975)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:159)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:977)
at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:818)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:897)
at java.lang.Thread.run(Thread.java:536)
Root Cause:
java.lang.NoClassDefFoundError: cn/Mybeans (wrong name: cn/MyBeans)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:502)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:250)
各位指教～～
...全文
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afeicat 2003-08-28
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大小写问题，<jsp:useBean id="Mybean" scope="application" class="cn.Mybeans" />
应该是<jsp:useBean id="Mybean" scope="application" class="cn.MyBeans" />
MyBeans写错
应该是<jsp:useBean id="Mybean" scope="application" class="cn.MyBeans" />
MyBeans写错
stillfire 2003-08-28
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.;%JAVA_HOME%\lib;C:\jakarta-tomcat-4.0-b1\lib;C:\jakarta-tomcat-4.0-b1\webapps\examples\
这个是 classpath
看看有没有什么问问题?
这个是 classpath
看看有没有什么问问题?
gisgeoboy 2003-08-23
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package cn;
public class MyBeans
{
private int a=100;
public MyBeans() //加构造函数
{
}
public int geta()
{
return a;
}
}
public class MyBeans
{
private int a=100;
public MyBeans() //加构造函数
{
}
public int geta()
{
return a;
}
}
idilent 2003-08-23
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bean的名字是什么？是不是大小写的问题或者是包的问题？
cxjd 2003-08-23
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可能是环境变量配置的问题
