错误在哪

cnhawk386 2006-05-18 11:41:08
login.java
package bookshop.run;
/**
* <p>管理用户登录的类 </p>
*/
import bookshop.util.*;
public class login extends DataBase {
private String username; //登录用户名
private String passwd; //登录密码
private boolean isadmin; //是否管理员登录
private long userid=0; //用户ID号
public login() throws Exception{
super();
username = "";
passwd = "";
isadmin = false;
}
public String getUsername() {
return username;
}
public void setUsername(String newusername) {
username = newusername;
}
public String getPasswd() {
return passwd;
}
public void setPasswd(String newpasswd) {
passwd = newpasswd;
}
public boolean getIsadmin() {
return isadmin;
}
public void setIsadmin(boolean newIsadmin) {
isadmin = newIsadmin;
}
public long getUserid() {
return userid;
}
public void setUserid (long uid) {
userid = uid;
}
/**
* 获得查询用户信息的sql语句
* @return
*/
public String getSql() {
if (isadmin) {
sqlStr = "select * from bookadmin where adminuser = '" +
dataFormat.toSql(username) + "' and adminpass = '" +
dataFormat.toSql(passwd) + "'";
}else {
sqlStr = "select * from shop_user where username = '" +
username + "' and password = '" + passwd + "'";
}
return sqlStr;
}
/**
* 执行查询
* @return
* @throws java.lang.Exception
*/
public boolean excute() throws Exception {
boolean flag = false;
DataBase db = new DataBase();
db.connect();
stmt = db.conn.createStatement ();
rs = stmt.executeQuery(getSql());
if (rs.next()){
if (!isadmin)
{
userid = rs.getLong("id");
}
flag = true;
}
rs.close();
return flag;
}
};


<%@ page session="true" %>
<jsp:useBean id="login" scope="page" class="bookshop.run.login" />
<%
String mesg = "";

if( request.getParameter("username")!=null && !request.getParameter("username").equals("")){
String username =request.getParameter("username");
String passwd = request.getParameter("passwd");
username = new String(username.getBytes("ISO8859-1"));
passwd = new String(passwd.getBytes("ISO8859-1"));
login.setUsername(username);
login.setPasswd(passwd);
out.print(username+passwd);
if (login.excute()){
session.setAttribute("username",username);
String userid = Long.toString(login.getUserid());
session.setAttribute("userid",userid);
response.sendRedirect("booklist.jsp");
%>
<%
}else {
mesg = "登录出错!" ;
}
}
%>
<%@include file="/bookshop/inc/head.inc"%>

<script language="javascript">

function checkform() {
if (document.form1.username.value=="" || document.form1.passwd.value==""){
alert("用户名或密码为空!");
return false;
}
return true;

}

</script>
<div align=center>用户登录 </div>
<br>
<% if (!mesg.equals("")){
out.println("<p>" + mesg + "</p>");}%>

<form name="form1" method="post" action="login.jsp">
<table width="400" border="0" cellspacing="1" cellpadding="1" align="center">
<tr>
<td width="147" align="right">用户名:<br>
</td>
<td width="246" valign="top">
<input type="text" name="username" size="16" maxlength="25">
</td>
</tr>
<tr>
<td width="147" align="right">密码:</td>
<td width="246" valign="top">
<input type="password" name="passwd" maxlength="20" size="16">
</td>
</tr>
<tr>
<td width="147" align="right"> </td>
<td width="246" valign="top">
<input type="submit" name="Submit" value="登录" onclick="javascript:return(checkform());">
<input type="reset" name="Submit2" value="取消">
</td>
</tr>
<tr>
<td colspan="2" align="center">
<p> </p>
测试用户:wxy 密码:wxy
</td>
</tr>
<tr>

<td colspan="2" align="center">
<p> </p>
<p>如果你还不是本站用户,请在此<a href="reg.jsp">注册</a></p>
</td>
</tr>
</table>
</form>
<%@include file="/bookshop/inc/tail.inc"%>

错误提示:

type Exception report

message

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

exception

org.apache.jasper.JasperException: Unable to compile class for JSP

An error occurred at line: 3 in the jsp file: /bookshop/login.jsp

Generated servlet error:
[javac] Compiling 1 source file

C:\Tomcat5.0\work\Catalina\localhost\_\org\apache\jsp\bookshop\login_jsp.java:48: package bookshop.run does not exist
bookshop.run.login login = null;
^



An error occurred at line: 3 in the jsp file: /bookshop/login.jsp

Generated servlet error:
C:\Tomcat5.0\work\Catalina\localhost\_\org\apache\jsp\bookshop\login_jsp.java:50: package bookshop.run does not exist
login = (bookshop.run.login) pageContext.getAttribute("login", PageContext.PAGE_SCOPE);
^



An error occurred at line: 3 in the jsp file: /bookshop/login.jsp

Generated servlet error:
C:\Tomcat5.0\work\Catalina\localhost\_\org\apache\jsp\bookshop\login_jsp.java:53: package bookshop.run does not exist
login = (bookshop.run.login) java.beans.Beans.instantiate(this.getClass().getClassLoader(), "bookshop.run.login");
^
3 errors


org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:128)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:351)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:413)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:453)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:437)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:555)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:291)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)


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


--------------------------------------------------------------------------------

Apache Tomcat/5.0.12
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poko 2006-05-19
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bookshop.run()

这个方法不存在,这不写着吗?
numen_wlm 2006-05-18
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错误在哪里呀?错误在哪里?
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