JAVA Excel Demo

所需JAR: jxl.jar

package  exceldemo.BO;

import  java.io.InputStream;
import  java.io.FileInputStream;
import  java.io. * ;
import  jxl.Workbook;
import  jxl.read.biff.BiffException;
import  jxl.Sheet;
import  jxl.Cell;
import  jxl.write.WritableWorkbook;
import  jxl.write.WritableSheet;
import  jxl.write.Label;
import  jxl.write.WriteException;
import  jxl.write.WritableCell;
import  jxl.write.WritableImage;
import  jxl.write.WritableFont;
import  jxl.format.UnderlineStyle;
import  jxl.write.WritableCellFormat;

public   class  WriteExcel {
     public  WriteExcel() {
    }
    
     /**
     * 读取Excel文件
      */
     public   void  readExcel(){
     try  {
        InputStream is  =   new  FileInputStream( " c:\\ss.xls " );
        Workbook workbook  =  Workbook.getWorkbook(is); // 构建Workbook对象, 只读Workbook对象
        
        System.out.println( " 工作表个数： " + workbook.getNumberOfSheets());
        Sheet[] sheet  =  workbook.getSheets(); // 获取Sheet表
         int  columns  =  sheet[ 0 ].getColumns();
         int  rows  =  sheet[ 0 ].getRows();
        System.out.println( " 共 " + rows + " 行 " + columns + " 列 " );
         for ( int  i = 0 ;i < rows;i ++ ){
           for ( int  j = 0 ;j < columns;j ++ ){
          Cell cell00  =  sheet[ 0 ].getCell(j,i);
          System.out.print(cell00.getContents());
          }
          System.out.println( "" );
        }
        workbook.close();
        is.close();
    }  catch  (FileNotFoundException ex) {ex.printStackTrace();
    }  catch  (BiffException ex) {ex.printStackTrace();
    }  catch  (IOException ex) {ex.printStackTrace();}

    }
    
     /**
     * 写Excel文件
      */
     public   void  writeExcel(){
       File newExcel  =   new  File( " c:\\newExcel.xls " );
     try  {
        WritableWorkbook wwb  =  Workbook.createWorkbook(newExcel); // 创建可写入的Excel工作薄
         // Method 2：将WritableWorkbook直接写入到输出流
         /*
        OutputStream os = new FileOutputStream(targetfile);
        jxl.write.WritableWorkbook wwb = Workbook.createWorkbook(os);
         */

        WritableSheet ws  =  wwb.createSheet( " TheFirstSheet " , 0 ); // 创建Excel工作表
         // 普通文本
        Label label00  =   new  Label( 0 , 0 , " derek " );
        ws.addCell(label00);
        WritableCell wc  =   new  Label( 1 , 0 , " man " );
        ws.addCell(wc);
         // 图片
        WritableImage wi  =   new  WritableImage( 1 , 5 , 1 , 3 , new  File( " c:\\300.PNG " )); // 参数表示(列位置，行位置，宽占列数，高占行数，图片路径)   
        ws.addImage(wi);
         // 格式化
        WritableFont wfc  =   new  WritableFont(WritableFont.ARIAL, 10 ,WritableFont.BOLD, false ,UnderlineStyle.DOUBLE,jxl.format.Colour.RED);
        WritableCellFormat wcfFC  =   new  jxl.write.WritableCellFormat(wfc);
        Label labelCFC  =   new  jxl.write.Label( 2 ,  0 ,  " This is a Label Cell " , wcfFC);
        ws.addCell(labelCFC);

         // 写入Exel工作表
        wwb.write();
         // 关闭Excel工作薄对象
        wwb.close();

    }  catch  (IOException ex) {ex.printStackTrace();} 
       catch  (WriteException ex) {
             /**  @todo Handle this exception  */
        }

    }
    
     public   static   void  main(String[] args) {
        WriteExcel writeexcel  =   new  WriteExcel();
        writeexcel.writeExcel();
    }
}