导出excel表有关问题

导出excel表问题

Java code


package cn.edu.cumt.print;

import java.io.File;
import java.io.IOException;

import java.sql.SQLException;
import java.util.List;

import cn.edu.cumt.print.ExcelService;
import cn.edu.cumt.UserDao.StuDetailedInfoDao;
import cn.edu.cumt.realclass.simpleInfoBean;

import jxl.Sheet;
import jxl.Workbook;

import jxl.read.biff.BiffException;
import jxl.write.Label;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;

public class ExcelService {

    
    public static boolean writeExcel() throws SQLException, IOException,BiffException { 
    try {
        File file = new File("result.xls");
        if(file.exists())
        {
            return false;
         }
        else
        {
            WritableWorkbook wb = Workbook.createWorkbook(new File("D:/result.xls")); 
            WritableSheet ws = wb.createSheet("sheet1", 0);
            StuDetailedInfoDao sdid = new StuDetailedInfoDao();
            
            List<simpleInfoBean> list = sdid.selectAll();
            Label la = new Label(0, 0, "序号");
            Label lb = new Label(1, 0, "学生姓名"); 
            Label lc = new Label(2, 0, "性别");
            Label ld = new Label(3, 0, "考试级别"); 
            Label le = new Label(4, 0, "考试代码");
            Label lee = new Label(5,0, "联系电话");
            Label lf = new Label(6, 0, "身份证号"); 
            Label lg = new Label(7, 0, "民族代码");
            Label lh = new Label(8, 0, "是否补考");
            Label li = new Label(8, 0, "远准考证号");
            ws.addCell(la); ws.addCell(lb);
            ws.addCell(lc); ws.addCell(ld);
            ws.addCell(le); ws.addCell(lee);
            ws.addCell(lf);ws.addCell(lg); 
            ws.addCell(lh); ws.addCell(li); 
            if (null != list)
            { 
                 for (int i = 0; i < list.size(); i++)
                 { 
                     simpleInfoBean ub = list.get(i); 
                     la = new Label(0, i + 1, ub.getStuName());
                     lb = new Label(1, i + 1, ub.getSex()); 
                     lc = new Label(2, i + 1, ub.getExamGrade()); 
                     ld = new Label(3, i + 1, ub.getCode());
                     le = new Label(4, i + 1, ub.getConNum());
                     lee = new Label(5, i + 1,ub.getIDcard());
                     lf = new Label(6, i + 1, ub.getNationalityCode()); 
                     lg = new Label(7, i + 1, ub.getNationalityCode());
                     lh = new Label(8, i + 1, ub.getMakeUpJob()); 
                     li = new Label(9, i + 1, ub.getAdmissionCardNum());
                     ws.addCell(la); ws.addCell(lb);
                     ws.addCell(lc); ws.addCell(ld); 
                     ws.addCell(le); ws.addCell(lee); 
                     ws.addCell(lf); ws.addCell(lg); 
                     ws.addCell(lh); ws.addCell(li);
                     
                 } 
            }
            wb.write(); 
            wb.close(); 
            return true;
        }
     } catch (Exception e) { 
         e.printStackTrace();
         return false;
         //     TODO: handle exception }
     
         }
}
    
}
//exportXLS.jsp
<body>
<%
    if(ExcelService.writeExcel())
    {
        
    

%>
<p>成功生成终表，现在<a href="D:/result.xls">下载</a></p>
<%
    }
    else
    {
%>
<p>插入失败，请去E盘查看文件“result.xls”是否已经存在</p>
<%
    }
%>
</body>

报错了：
An error occurred at line: 12 in the jsp file: /exportXLS.jsp
The type jxl.read.biff.BiffException cannot be resolved. It is indirectly referenced from required .class files
9: </head>
10: <body>
11: <%
12: if(ExcelService.writeExcel())
13: {
14:
15:
Stacktrace:
at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)

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