java取读excel的特定单元格的值

package com.excel.action;
import java.io.File;     
import java.io.FileInputStream;   
import java.io.InputStream;   
import jxl.Cell;   
import jxl.CellType;
import jxl.LabelCell;
import jxl.Sheet;   
import jxl.Workbook;   
import jxl.write.Label;

public class ExcelOperater    
 
{   
    public static void main(String[] args)    
 
    {   
        jxl.Workbook readwb = null;   
 
        try    
 
        {   
 
            //构建Workbook对象, 只读Workbook对象   
 
            //直接从本地文件创建Workbook   
 
            InputStream instream = new FileInputStream("F:/tomcat7/webapps/Excel/upload/1.xls");   
 
            readwb = Workbook.getWorkbook(instream);   
 
            //Sheet的下标是从0开始   
 
            //获取第一张Sheet表   
 
            Sheet readsheet = readwb.getSheet(0);  
            
            //获得第一行第一列单元的值  
            
            Cell c00 = readsheet.getCell(2,2);  
            
            //通用的获取cell值的方式,返回字符串  
             
            String strc00 = c00.getContents();
            
            System.out.println("-----------------");
            
            System.out.println(c00.getContents());
            
            System.out.println("------------------");
            
            //获得cell具体类型值的方式  
            
            if(c00.getType() == CellType.LABEL)  
 
            {  
 
                LabelCell labelc00 = (LabelCell)c00;  
 
                strc00 = labelc00.getString();  
 
            }  
 
            //获取Sheet表中所包含的总列数   
            
            int rsColumns = readsheet.getColumns();   
 
            //获取Sheet表中所包含的总行数   
 
            int rsRows = readsheet.getRows();   
 
            //获取指定单元格的对象引用   
 
            for (int i = 0; i < rsRows; i++)   
 
            {   
 
                for (int j = 0; j < rsColumns; j++)   
 
                {   
 
                    Cell cell = readsheet.getCell(j, i);   
    
                    System.out.print(cell.getContents() + " ");   
 
               }   
 
                System.out.println();   
 
            }   
 
            
            
 
            //利用已经创建的Excel工作薄,创建新的可写入的Excel工作薄   
 
            jxl.write.WritableWorkbook wwb = Workbook.createWorkbook(new File(   
 
                    "F:/tomcat7/webapps/Excel/upload/11.xls"), readwb);   
 
            //读取第一张工作表   
 
            jxl.write.WritableSheet ws = wwb.createSheet("第一页", 0);
 
            //获得第一个单元格对象   
            
            Label label = new Label(0,0,c00.getContents());
            
            System.out.println("label value:" + label.getContents());
 
            ws.addCell(label);
 
            //写入Excel对象   
 
            wwb.write();   
 
            wwb.close();   
 
        } catch (Exception e) {   
 
            e.printStackTrace();   
 
        } finally {   
 
            readwb.close();   
 
        }   
 
}   
 
}