tomcat 下使用javabean总是出错怎么办。求救,帮我看看吧!
tomcat5.0.28下不能用javabean。我正在学习jsp用的书是《jsp应用开发详解》光盘中的代码涉及javabean的都出现这种问题。下面是我在网上找到的一个简单的测试代码,经测试问题依旧。
请各位大侠赐教,急急急急死我了!!!!!
错误代码:
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: /dhx/test1.jsp(4,0) The value for the useBean class attribute text.JavaBean is invalid.
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:39)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:409)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:150)
org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1227)
org.apache.jasper.compiler.Node$UseBean.accept(Node.java:1116)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
org.apache.jasper.compiler.Node$Root.accept(Node.java:456)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Generator.generate(Generator.java:3272)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:244)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:470)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.
--------------------------------------------------------------------------------
Apache Tomcat/5.0.28
JavaBean.java 已经编译好放在D:\lyb\dhx\WEB_INF\classes\text中了(lyb已经建立了虚拟目录),如下:
package text;
public class JavaBean{
private String name;
private String pass;
public void setName(String name) {
this.name = name;
}
public void setPass(String pass) {
this.pass = pass;
}
public String getName() {
return this.name;
}
public String getPass() {
return this.pass;
}
}
test.jsp用于填写信息
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<form action="test1.jsp" method="get">
<input name="name" type="text">
<input name="pass" type="text">
<input name="" type="submit">
</form>
test1.jsp将信息添加到bean中
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<jsp:useBean id="test" scope="request" class="text.JavaBean">
<jsp:setProperty name="test" property="*" />
</jsp:useBean>
<%
out.println(test.getName());
out.println(test.getPass());
%>