jxl写入excel

小鱼儿 2022-06-12 13:23 269阅读 0赞

package com.cwb.cn

import java.io.File;  
import java.io.FileNotFoundException;  
import java.io.FileOutputStream;  
import java.io.IOException;  
import java.io.OutputStream;  
import java.util.ArrayList;  
import java.util.List;

import jxl.Workbook;  
import jxl.write.Label;  
import jxl.write.WritableSheet;  
import jxl.write.WritableWorkbook;  
import jxl.write.WriteException;  
import jxl.write.biff.RowsExceededException;

/\*\*  
\* Jxl 的 Excel写数据器.  
\* @author chenl\*/  
public class JxlExcelWriter \{  
    
    /\*\*  
     \* @param datas 封装着Object\[\]的列表, 一般是String内容.  
     \* @param title 每个sheet里的标题.  
     \*/  
    public void writeExcel(OutputStream out, List datas, String\[\] title) \{  
        if(datas == null) \{  
            throw new IllegalArgumentException("写excel流需要List参数!");  
        \}  
        try \{  
            WritableWorkbook workbook = Workbook.createWorkbook(out);  
            WritableSheet ws = workbook.createSheet("sheet 1", 0);  
            int rowNum = 0;    //要写的行  
            if(title != null) \{  
                putRow(ws, 0, title);//压入标题  
                rowNum = 1;  
            \}  
            for(int i=0; i<datas.size(); i++, rowNum++) \{//写sheet  
                Object\[\] cells = (Object\[\]) datas.get(i);  
                putRow(ws, rowNum, cells);    //压一行到sheet  
            \}  
            
            workbook.write();  
            workbook.close();    //一定要关闭, 否则没有保存Excel  
        \} catch (RowsExceededException e) \{  
            System.out.println("jxl write RowsExceededException: "+e.getMessage());  
        \} catch (WriteException e) \{  
            System.out.println("jxl write WriteException: "+e.getMessage());  
        \} catch (IOException e) \{  
            System.out.println("jxl write file i/o exception!, cause by: "+e.getMessage());  
        \}  
    \}

private void putRow(WritableSheet ws, int rowNum, Object\[\] cells) throws RowsExceededException, WriteException \{  
        for(int j=0; j<cells.length; j++) \{//写一行  
            Label cell = new Label(j, rowNum, ""+cells\[j\]);  
            ws.addCell(cell);  
        \}  
    \}  
    
    public static void main(String\[\] args) \{  
        
            List datas = new ArrayList();  
            String\[\] data = \{"1", "chenlb"\};  
            datas.add(data);  
            try \{  
                OutputStream out = new FileOutputStream(new File("e://a.xls"));  
                JxlExcelWriter jxlExcelWriter = new JxlExcelWriter();  
                jxlExcelWriter.writeExcel(out, datas, new String\[\] \{"Id", "name"\});  
                out.close();  
            \} catch (FileNotFoundException e) \{  
                // TODO Auto-generated catch block  
                e.printStackTrace();  
            \} catch (IOException e) \{  
                // TODO Auto-generated catch block  
                e.printStackTrace();  
            \}  
            
        
   \}  
    
\}