Java, 如何从Excel中读取数据到文件中_java excel转file-优快云博客

本文链接：https://blog.youkuaiyun.com/wyxsky/article/details/9239361

本文详细介绍了如何使用Java编程语言从Excel文件读取特定数据，并将其写入到文本文件中，包括文件操作、工作簿读取、工作表遍历以及数据格式化输出。

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package demoIO;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;

public class ReadDataFromExcepFile {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		System.out.println("Begin to read data from Excel file.");
		try 
		{
			Workbook book = Workbook.getWorkbook(new File("D:\\Program Files\\eclipse3.6.1\\WorkSpace\\practice\\TPID.xls"));
			File file = new File("D:\\Program Files\\eclipse3.6.1\\WorkSpace\\practice\\tpid.txt");	
			if (file.exists())
			{
				file.delete();
			}			
			
			file.createNewFile();

			if (!file.canWrite())
			{
				System.out.println("This file can not be written. File name = " + file.getName());
			}
			else 
			{
				StringBuilder strHcom = new StringBuilder();
				StringBuilder strEcom = new StringBuilder();
				OutputStream out = null;
				out = new FileOutputStream(file);
				Sheet sheet = book.getSheet(0);
				int row = sheet.getRows();				
				for (int i = 1; i < row; i++ )
				{
					Cell cellPOSName = sheet.getCell(1, i);//The first is column number, the second is row number.
					Cell cellKeyCell = sheet.getCell(0, i);	
					//String posName = "#" + cellPOSName.getContents() + "\r\n";
					//String content = "search/supportedHotelTypes." + cellKeyCell.getContents() + "=ESR,DA,EEM" + "\r\n";
					if (cellPOSName.getContents().contains("Hcom"))
					{
						strHcom.append("#" + cellPOSName.getContents() + "\r\n");
						strHcom.append("search/supportedHotelTypes." + cellKeyCell.getContents() + "=ESR,DA,EEM" + "\r\n");
					}
					else 
					{
						strEcom.append("#" + cellPOSName.getContents() + "\r\n");
						strEcom.append("search/supportedHotelTypes." + cellKeyCell.getContents() + "=ESR,DA,EEM" + "\r\n");
					}
					//out.write(posName.getBytes());
					//out.write(content.getBytes());
				}
				out.write(strHcom.toString().getBytes());
				out.write(strEcom.toString().getBytes());
				out.close();
			}
			System.out.println("Success");			
		}
		catch (FileNotFoundException e) 
		{
			// TODO: handle exception
			e.printStackTrace();
		}
		catch (BiffException e) 
		{
			// TODO Auto-generated catch block
			System.out.println("Exception: " + e.getMessage());
			e.printStackTrace();
		} 
		catch (IOException e) 
		{
			// TODO Auto-generated catch block
			System.out.println("Exception: " + e.getMessage());
			e.printStackTrace();
		}		
	}
}