JSP调试遇到问题，求救！！

我的网上购书系统做的差不多了，但是在编译时遇到了问题好象读javabean文件BookInf.class时有错误，难道是BookInf.class编译后有错误，还是放的文件路径有问题，我的bean文件放在ROOT/bookshop/WEB-INF/classes/bean/BookInf.class,运行index.jsp出现下面的提示：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: Unable to compile class for JSPGenerated servlet error:
C:\Tomcat 5.0\work\Catalina\localhost\_\org\apache\jsp\bookshop\index_jsp.java:7: package bean does not exist
import bean.BookInf;
            ^
An error occurred at line: 67 in the jsp file: /bookshop/index.jsp
Generated servlet error:
C:\Tomcat 5.0\work\Catalina\localhost\_\org\apache\jsp\bookshop\index_jsp.java:130: cannot resolve symbol
symbol  : class BookInf 
location: class org.apache.jsp.bookshop.index_jsp
   BookInf book= (BookInf)booklist.elementAt(index);
                                ^
An error occurred at line: 67 in the jsp file: /bookshop/index.jsp
Generated servlet error:
C:\Tomcat 5.0\work\Catalina\localhost\_\org\apache\jsp\bookshop\index_jsp.java:130: cannot resolve symbol
symbol  : class BookInf 
location: class org.apache.jsp.bookshop.index_jsp
   BookInf book= (BookInf)booklist.elementAt(index);
                                               ^
An error occurred at line: 87 in the jsp file: /bookshop/index.jsp
Generated servlet error:
C:\Tomcat 5.0\work\Catalina\localhost\_\org\apache\jsp\bookshop\index_jsp.java:172: cannot resolve symbol
symbol  : class BookInf 
location: class org.apache.jsp.bookshop.index_jsp
   BookInf book= (BookInf)booklist.elementAt(index+1);
                                ^
An error occurred at line: 87 in the jsp file: /bookshop/index.jsp
Generated servlet error:
C:\Tomcat 5.0\work\Catalina\localhost\_\org\apache\jsp\bookshop\index_jsp.java:172: cannot resolve symbol
symbol  : class BookInf 
location: class org.apache.jsp.bookshop.index_jsp
   BookInf book= (BookInf)booklist.elementAt(index+1);
                                               ^
An error occurred at line: 116 in the jsp file: /bookshop/index.jsp
Generated servlet error:
C:\Tomcat 5.0\work\Catalina\localhost\_\org\apache\jsp\bookshop\index_jsp.java:223: cannot resolve symbol
symbol  : class BookInf 
location: class org.apache.jsp.bookshop.index_jsp
   BookInf book= (BookInf)booklist.elementAt(index+2);
                                ^
An error occurred at line: 116 in the jsp file: /bookshop/index.jsp
Generated servlet error:
C:\Tomcat 5.0\work\Catalina\localhost\_\org\apache\jsp\bookshop\index_jsp.java:223: cannot resolve symbol
symbol  : class BookInf 
location: class org.apache.jsp.bookshop.index_jsp
   BookInf book= (BookInf)booklist.elementAt(index+2);
                                               ^
An error occurred at line: 135 in the jsp file: /bookshop/index.jsp
Generated servlet error:
C:\Tomcat 5.0\work\Catalina\localhost\_\org\apache\jsp\bookshop\index_jsp.java:264: cannot resolve symbol
symbol  : class BookInf 
location: class org.apache.jsp.bookshop.index_jsp
   BookInf book= (BookInf)booklist.elementAt(index+3);
                                ^
An error occurred at line: 135 in the jsp file: /bookshop/index.jsp
Generated servlet error:
C:\Tomcat 5.0\work\Catalina\localhost\_\org\apache\jsp\bookshop\index_jsp.java:264: cannot resolve symbol
symbol  : class BookInf 
location: class org.apache.jsp.bookshop.index_jsp
   BookInf book= (BookInf)booklist.elementAt(index+3);
                                               ^
An error occurred at line: 164 in the jsp file: /bookshop/index.jsp
Generated servlet error:
C:\Tomcat 5.0\work\Catalina\localhost\_\org\apache\jsp\bookshop\index_jsp.java:315: cannot resolve symbol
symbol  : class BookInf 
location: class org.apache.jsp.bookshop.index_jsp
   BookInf book= (BookInf)booklist.elementAt(index+4);
                                ^
An error occurred at line: 164 in the jsp file: /bookshop/index.jsp
Generated servlet error:
C:\Tomcat 5.0\work\Catalina\localhost\_\org\apache\jsp\bookshop\index_jsp.java:315: cannot resolve symbol
symbol  : class BookInf 
location: class org.apache.jsp.bookshop.index_jsp
   BookInf book= (BookInf)booklist.elementAt(index+4);
                                               ^
An error occurred at line: 185 in the jsp file: /bookshop/index.jsp
Generated servlet error:
C:\Tomcat 5.0\work\Catalina\localhost\_\org\apache\jsp\bookshop\index_jsp.java:358: cannot resolve symbol
symbol  : class BookInf 
location: class org.apache.jsp.bookshop.index_jsp
   BookInf book= (BookInf)booklist.elementAt(index+5);
                                ^
An error occurred at line: 185 in the jsp file: /bookshop/index.jsp
Generated servlet error:
C:\Tomcat 5.0\work\Catalina\localhost\_\org\apache\jsp\bookshop\index_jsp.java:358: cannot resolve symbol
symbol  : class BookInf 
location: class org.apache.jsp.bookshop.index_jsp
   BookInf book= (BookInf)booklist.elementAt(index+5);
                                               ^
13 errors org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:332)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:412)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
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)

解决方案 »

  1.   

    路径有错。我有日子没用JSP了啊。不过我记得import.后面应该是bean的路径啊，默认是在web/inf下的，但是你存放的是WEB-INF/classes/bean/BookInf.class，
    却写的是，import bean.bookinf,应该是import classes.bean.bookinf
      

  2.   

    我在classpath下把tools.jar加了啊，还是不行
      

  3.   

    这是我的index.jsp，网站的主页如下：
    <%@ page contentType="text/html; charset=gb2312" language="java" import="java.util.*,classes.bean.BookInf" errorPage="" %>
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
    "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
    <title>book shop online</title>
    <link rel="stylesheet" href="source/bookshop.css" type="text/css">
    <jsp:include page="/utility/scriptFunction.jsp" />
    </head>
    <% request.setCharacterEncoding("gb2312");
    response.setContentType("text/html; charset=gb2312");
    if(session.getAttribute("booklist")==null){ 
    response.sendRedirect("/bookshop/classes/ShowBook");
    } else { 
    Vector booklist=(Vector)session.getAttribute("booklist");
    String pg;
    if(request.getParameter("pg")==null){
    pg="1";
    }else{
    pg=request.getParameter("pg");
    }
    int pgSum=(int)(booklist.size()+5)/6;
    int index=(Integer.parseInt(pg)-1)*6;
    %>
    <body onmousemove="closesubnav(event);"> 
    <div id="masthead">
     <jsp:include page="/utility/siteName.jsp" />
      <jsp:include page="/utility/navigation.jsp" />
    </div> 
    <div id="pagecell1"> 
      

  4.   

    <div id="breadCrumb"> 
              <table width="100%" border="0">
             <tr>
               <% String requestURL= request.getRequestURI();
          String param=request.getQueryString(); 
      String hidAddr="/bookshop/MenuHidden?jspURL=" + requestURL +"&param="+ param ;
      String showAddr="/bookshop/MenuShow?jspURL=" + requestURL +"&param="+ param ; %>
       <td width="211"><a href=<%= hidAddr %> align="left">隐藏</a> / <a href=<%= showAddr %>>显示</a> </td>
               <td width="516"><div align="right"><a href="/bookshop/userLogin.jsp"align="right">登陆</a> | <a href="/bookshop/userRegister.jsp">新用户注册</a> | <a href="/bookshop/adminLogin.jsp">管理员入口</a></div></td>
            </tr>
           </table>   
      </div> 
       <table width="100%" border="0">
      <tr valign="top">
      <% if(session.getAttribute("hidden")==null){ %>
       
       
       
       <jsp:include page="/utility/menu.jsp" />
       
       
       
       <% } %>    <td width="81%" > 
        

    <div class="book"> 
          <table width="100%" cellpadding="0" cellspacing="0" summary=""> 
            
    <tr valign="top"> 
              <td width="5%" > <p>&nbsp; 
                </p></td>
      <% if(index+1<=booklist.size()){
       BookInf book= (BookInf)booklist.elementAt(index);
    String imgURL="source/"+book.getId()+".JPG";
    String commentURL="/bookshop/bookComment.jsp?bookId="+book.getId();
    String cartURL="/bookshop/addCart.jsp?bookId="+book.getId();
      %>  
              <td width="23%" ><a href="#" onClick="window.open('<%= commentURL %>','s','width=850,height=600,scrollbars=yes,resizeable=yes,ststus=yes');"><img src=<%= imgURL %> width="135" height="200" border="0" ></a></td>
              <td width="22%" ><p class="bookInfo">书名：<%= book.getName() %></p>
                <p class="bookInfo">作者：<%= book.getAuthor() %></p>
                <p class="bookInfo">出版社：<%= book.getPublisher() %></p>
                <p class="bookInfo">类别：<%= book.getType() %></p>
                <p class="bookInfo">单价：&yen;<%= book.getPrice() %></p>
                <p class="bookInfo"><a href="#" onClick="window.open('<%= cartURL %>','s','width=300,height=300,scrollbars=yes,resizeable=yes,ststus=yes');"><img src="source/cart.gif" width="130" height="25" border="0"></a></p></td>
              <% } else { %>
         <td width="23%" height="200">&nbsp;</td>
     <td width="22%" height="200">&nbsp;</td>
      <% } %>
      
      <td width="5%" >&nbsp;</td>
              
      <% if(index+2<=booklist.size()){
       BookInf book= (BookInf)booklist.elementAt(index+1);
    String imgURL="source/"+book.getId()+".JPG";
    String commentURL="/bookshop/bookComment.jsp?bookId="+book.getId();
    String cartURL="/bookshop/addCart.jsp?bookId="+book.getId();
      %>  
              <td width="23%" ><a href="#" onClick="window.open('<%= commentURL %>','s','width=850,height=600,scrollbars=yes,resizeable=yes,ststus=yes');"><img src=<%= imgURL %> width="135" height="200" border="0" ></a></td>
              <td width="22%" ><p class="bookInfo">书名：<%= book.getName() %></p>
                <p class="bookInfo">作者：<%= book.getAuthor() %></p>
                <p class="bookInfo">出版社：<%= book.getPublisher() %></p>
                <p class="bookInfo">类别：<%= book.getType() %></p>
                <p class="bookInfo">单价：&yen;<%= book.getPrice() %></p>
                <p class="bookInfo"><a href="#" onClick="window.open('<%= cartURL %>','s','width=300,height=300,scrollbars=yes,resizeable=yes,ststus=yes');"><img src="source/cart.gif" width="130" height="25" border="0"></a></p></td>
              <% } else { %>
         <td width="23%" height="200">&nbsp;</td>
     <td width="22%" height="200">&nbsp;</td>
      <% } %>
            
    </tr> 
            
    <tr valign="top"> 
              <td colspan="6" > <p>&nbsp; 
                </p> <p>&nbsp; 
                </p></td> 
              </tr>
           
        <tr valign="top">
              <td >&nbsp;</td>
      

  5.   

    <% if(index+3<=booklist.size()){
       BookInf book= (BookInf)booklist.elementAt(index+2);
    String imgURL="source/"+book.getId()+".JPG";
    String commentURL="/bookshop/bookComment.jsp?bookId="+book.getId();
    String cartURL="/bookshop/addCart.jsp?bookId="+book.getId();
      %>  
              <td width="23%" ><a href="#" onClick="window.open('<%= commentURL %>','s','width=850,height=600,scrollbars=yes,resizeable=yes,ststus=yes');"><img src=<%= imgURL %> width="135" height="200" border="0" ></a></td>
              <td width="22%" ><p class="bookInfo">书名：<%= book.getName() %></p>
                <p class="bookInfo">作者：<%= book.getAuthor() %></p>
                <p class="bookInfo">出版社：<%= book.getPublisher() %></p>
                <p class="bookInfo">类别：<%= book.getType() %></p>
                <p class="bookInfo">单价：&yen;<%= book.getPrice() %></p>
                <p class="bookInfo"><a href="#" onClick="window.open('<%= cartURL %>','s','width=300,height=300,scrollbars=yes,resizeable=yes,ststus=yes');"><img src="source/cart.gif" width="130" height="25" border="0"></a></p></td>
              <% } else { %>
         <td width="23%" height="200">&nbsp;</td>
     <td width="22%" height="200">&nbsp;</td>
      <% } %>
              
      <td >&nbsp;</td>
               <% if(index+4<=booklist.size()){
       BookInf book= (BookInf)booklist.elementAt(index+3);
    String imgURL="source/"+book.getId()+".JPG";
    String commentURL="/bookshop/bookComment.jsp?bookId="+book.getId();
    String cartURL="/bookshop/addCart.jsp?bookId="+book.getId();
      %>  
              <td width="23%" ><a href="#" onClick="window.open('<%= commentURL %>','s','width=850,height=600,scrollbars=yes,resizeable=yes,ststus=yes');"><img src=<%= imgURL %> width="135" height="200" border="0" ></a></td>
              <td width="22%" ><p class="bookInfo">书名：<%= book.getName() %></p>
                <p class="bookInfo">作者：<%= book.getAuthor() %></p>
                <p class="bookInfo">出版社：<%= book.getPublisher() %></p>
                <p class="bookInfo">类别：<%= book.getType() %></p>
                <p class="bookInfo">单价：&yen;<%= book.getPrice() %></p>
                <p class="bookInfo"><a href="#" onClick="window.open('<%= cartURL %>','s','width=300,height=300,scrollbars=yes,resizeable=yes,ststus=yes');"><img src="source/cart.gif" width="130" height="25" border="0"></a></p></td>
              <% } else { %>
         <td width="23%" height="200">&nbsp;</td>
     <td width="22%" height="200">&nbsp;</td>
      <% } %>
            
    </tr> 
            
    <tr valign="top"> 
              <td colspan="6" > <p>&nbsp; 
                </p> <p>&nbsp; 
                </p></td> 
              </tr>
            
    <tr valign="top">
              <td height="200" >&nbsp;</td>
              
       <% if(index+5<=booklist.size()){
       BookInf book= (BookInf)booklist.elementAt(index+4);
    String imgURL="source/"+book.getId()+".JPG";
    String commentURL="/bookshop/bookComment.jsp?bookId="+book.getId();
    String cartURL="/bookshop/addCart.jsp?bookId="+book.getId();
      %>  
              <td width="23%" ><a href="#" onClick="window.open('<%= commentURL %>','s','width=850,height=600,scrollbars=yes,resizeable=yes,ststus=yes');"><img src=<%= imgURL %> width="135" height="200" border="0" ></a></td>
              <td width="22%" ><p class="bookInfo">书名：<%= book.getName() %></p>
                <p class="bookInfo">作者：<%= book.getAuthor() %></p>
                <p class="bookInfo">出版社：<%= book.getPublisher() %></p>
                <p class="bookInfo">类别：<%= book.getType() %></p>
                <p class="bookInfo">单价：&yen;<%= book.getPrice() %></p>
                <p class="bookInfo"><a href="#" onClick="window.open('<%= cartURL %>','s','width=300,height=300,scrollbars=yes,resizeable=yes,ststus=yes');"><img src="source/cart.gif" width="130" height="25" border="0"></a></p></td>
              <% } else { %>
         <td width="23%" height="200">&nbsp;</td>
     <td width="22%" height="200">&nbsp;</td>
      <% } %>
              
      
      <td height="200" >&nbsp;</td>
              
       <% if(index+6<=booklist.size()){
       BookInf book= (BookInf)booklist.elementAt(index+5);
    String imgURL="source/"+book.getId()+".JPG";
    String commentURL="/bookshop/bookComment.jsp?bookId="+book.getId();
    String cartURL="/bookshop/addCart.jsp?bookId="+book.getId();
      %>  
              <td width="23%" ><a href="#" onClick="window.open('<%= commentURL %>','s','width=850,height=600,scrollbars=yes,resizeable=yes,ststus=yes');"><img src=<%= imgURL %> width="135" height="200" border="0" ></a></td>
              <td width="22%" ><p class="bookInfo">书名：<%= book.getName() %></p>
                <p class="bookInfo">作者：<%= book.getAuthor() %></p>
                <p class="bookInfo">出版社：<%= book.getPublisher() %></p>
                <p class="bookInfo">类别：<%= book.getType() %></p>
                <p class="bookInfo">单价：&yen;<%= book.getPrice() %></p>
                <p class="bookInfo"><a href="#" onClick="window.open('<%= cartURL %>','s','width=300,height=300,scrollbars=yes,resizeable=yes,ststus=yes');"><img src="source/cart.gif" width="130" height="25" border="0"></a></p></td>
              <% } else { %>
         <td width="23%" height="200">&nbsp;</td>
     <td width="22%" height="200">&nbsp;</td>
      <% } %>
            
    </tr>
    <tr valign="top">
              <td height="23" colspan="6" ><div align="center">
                <p>&nbsp;</p>
           <% 
        String aft="/bookshop/index.jsp?pg="+Integer.toString(index/6+2);
    String pre="/bookshop/index.jsp?pg="+Integer.toString(index/6);
    if(pg.equals("1")){
         if(Integer.parseInt(pg)<pgSum){ 
     %>
        
                <p>上一页&nbsp;&nbsp;&nbsp;共<%= pg %>/<%= pgSum %>页&nbsp;&nbsp;&nbsp;<a href=<%= aft %>>下一页 </a></p>
              
    <%  }else{  %>
             <tr valign="top">
              <td height="23" colspan="6" ><div align="right">
               
                <p>上一页&nbsp;&nbsp;&nbsp;共<%= pg %>/<%= pgSum %>页&nbsp;&nbsp;&nbsp;下一页 </p>
              
    <% } 
    } else { 
    if(Integer.parseInt(pg)<pgSum){ 
    %>

                <p><a href=<%= pre %>>上一页</a>&nbsp;&nbsp;&nbsp;共<%= pg %>/<%= pgSum %>页&nbsp;&nbsp;&nbsp;<a href=<%= aft %>>下一页 </a></p>
              
    <% } else {
    %>

                <p><a href=<%= pre %>>上一页</a>&nbsp;&nbsp;&nbsp;共<%= pg %>/<%= pgSum %>页&nbsp;&nbsp;&nbsp;下一页</p>
              
         <%    }
        } %>
    </div></td>
              </tr> 
      </table> 
        </div> 
    </td>
      </tr>
    </table>
    <jsp:include page="/utility/copyRight.jsp" />
    </div> 
    <br> 
    <jsp:include page="/utility/scriptMenuitem.jsp" /> 
    </body>
    <% } %>
    </html>
      

  6.   

    终于搞好了，是我的jdk版本的问题！
    谢谢大家了