学习JavaBean，有个小程序弄不出来

最近看参考书学javaBean的用法，其实很简单，就是一个注册页面，然后写进数据库里，但本人菜鸟，实在是弄不出来，只能代码贴出来，问问各位  总是报500的错,错误信息最后贴出
---------UserInfo--------------
package com.jspdev.ch5;
import java.util.*;
public class UserInfo {

private String password;

private String name;


public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}

public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}------------UserRegist.java----------------
package com.jspdev.ch5;import java.sql.*;
public class UserRegist {
private UserInfo userInfo;
private Connection con;

public UserRegist() {
String CLASSFORNAME="oracle.jdbc.driver.OracleDriver";
String URL="jdbc:oracle:[email protected]:1521:orcl10";
String USER="sys";
String PWD="oracle";
try {
Class.forName(CLASSFORNAME); con=DriverManager.getConnection(URL,USER,PWD);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
} 
}
//设置用户注册信息
public void setUserInfo(UserInfo userInfo){
this.userInfo=userInfo;
}
//进行注册
public void regist()throws Exception{
String reg="insert into roeee.test values(?,?)";
try{
PreparedStatement pstmt=con.prepareStatement(reg);
//创建一个预处理语句，然后设置他们的参数
pstmt.setString(1,userInfo.getName());
pstmt.setString(2,userInfo.getPassword());
//执行更新操作
pstmt.executeUpdate();
}
catch(Exception e){
e.printStackTrace();
throw e;
}
}}
-------------regist.jsp------------------                                                                                                              <%@ page language="java"  import="java.util.*"  pageEncoding="GB18030"%>                                                                                                                                                                                                                                                                                                      <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">    
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
  </head>
  
  <body>
    This is my JSP page. 
   
     
   <br><br><form method="post" action="newuser.jsp" name="form1">
                             <p>&nbsp;用户名 <input type="text" name="name"></p>
                             <p>&nbsp;密码&nbsp;&nbsp; <input type="text" name="password"></p>
                             <p>&nbsp;<input type="submit" name="button1"></p><p>&nbsp;</p><p>&nbsp;</p>
                             <p>&nbsp;</p>
           </form> 
    
    
  </body>
</html>-----------------newuser.jsp---------------------
<%@ page language="java" contentType="text/html; charset=GB18030"
    pageEncoding="GB18030" import="com.jspdev.ch5.*"%>
    
<jsp:useBean id="userInfo" class="com.jspdev.ch5.UserInfo" sope="page">
<jsp:setProperty name="userInfo" property="*"/>
</jsp:useBean>
<jsp:useBean id="regist" class="com.jspdev.ch5.UserRegist" sope="page"/>
<%regist.setUserInfo(userInfo);
regist.regist();
out.print("注册成功"); 
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head><title>Insert title here</title>
</head>
<body>
TEST
</body>
</html>------------------错误信息----------------
HTTP Status 500 - --------------------------------------------------------------------------------type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception org.apache.jasper.JasperException: /newuser.jsp(3,0) UseBean: Invalid attribute, sope
at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:94)
at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:428)
at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:219)
at org.apache.jasper.compiler.JspUtil.checkAttributes(JspUtil.java:337)
at org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:383)
at org.apache.jasper.compiler.Node$UseBean.accept(Node.java:592)
at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:1028)
at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:1070)
at org.apache.jasper.compiler.Node$Visitor.visit(Node.java:1076)
at org.apache.jasper.compiler.Node$Root.accept(Node.java:232)
at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:1028)
at org.apache.jasper.compiler.Validator.validate(Validator.java:607)
at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:226)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:351)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:474)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:184)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:432)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:386)
at org.apache.tomcat

解决方案 »

  1.   

    <jsp:useBean id="userInfo" class="com.jspdev.ch5.UserInfo" sope="page">
    是scope
      

  2.   

    楼主 因该细心点哈  scope
      

  3.   

    哈哈，，原来是scope写错了。。
      

  4.   

    谢谢ls大哥指点，改了后还是报错，我觉得还是程序有什么问题，麻烦再帮忙看看HTTP Status 500 - --------------------------------------------------------------------------------type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception org.apache.jasper.JasperException
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:248)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
    at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
    at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
    at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
    at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
    at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
    at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
    at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
    at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
    at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
    at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
    at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
    at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:432)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:386)
    at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:534)
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:530)
    at java.lang.Thread.run(Unknown Source)
    root cause java.lang.NullPointerException
    at com.jspdev.ch5.UserRegist.regist(UserRegist.java:30)
    at org.apache.jsp.newuser_jsp._jspService(newuser_jsp.java:77)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:204)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
    at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
    at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
    at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
    at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
    at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
    at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
    at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
    at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
    at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
    at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
    at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
    at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:432)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:386)
    at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:534)
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:530)
    at java.lang.Thread.run(Unknown Source)--------------------------------------------------------------------------------Apache Tomcat/4.1.18-LE-jdk14
      

  5.   

    java.lang.NullPointerException
    at com.jspdev.ch5.UserRegist.regist(UserRegist.java:30)
    空指针 很明显了。
      

  6.   

    java.lang.NullPointerException
     有空值啊 ！断点 跟下！
      

  7.   

    java.lang.NullPointerException
    你看下你的值传过去没有，或者是名字写错了
      

  8.   

    哈哈  你看就是scope写成了sope  学会看提示
      

  9.   

    怎么断点啊，我这MyEclipse怎么点那昆虫的标志也是老报错啊，能详细说一下吗，真是不太会这个
      

  10.   

    lz你肯定会报空指针异常的，你打印一下你那个register()方法里面的userInfo应该可能会是空值的，还有就是第一个错误你的jsp页面写得有问题。
      

  11.   

    建议楼主做个javabean-servlet 的例子，就赶紧学 jstl el SSH 吧。
      

  12.   

    newuser_jsp.java:77这里不是说了嘛？newuser这个文件77行出错…
      

  13.   

    regist.jsp没传到newuse.jsp,userInfo没值。。
      

  14.   

    UserRegist（）你的这个类就有问题，Connection 连接数据库不能写在构造方法中，自己写一个方法，返回值为Connection，就可以了，记得关闭数据库操作。