linux poi生成excel demo调试附调用代码

1.下载poi-3.9-20121203.jar包

2.java code

package com.userpackage;

import java.io.FileOutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;

public class ExcelDemo {
	public static void main(String[] args) {
		final HSSFWorkbook wb = new HSSFWorkbook();
		for (int i = 0; i < 5; i++) {
			final HSSFSheet sheet = wb.createSheet("result" + "_" + i);
			HSSFRow row;
			for (int rowId = 0; rowId < 10; rowId++) {
				row = sheet.createRow(rowId);
				HSSFCell cell = null;
				for (int colId = 0; colId < 10; colId++) {
					cell = row.createCell(colId);
					cell.setCellValue("row" + rowId + "col" + colId);
				}
			}
		}

		final SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHH24mmssSSS");
		final String formatStr = formatter.format(new Date());

		final String fileName = "exceldemo" + formatStr + ".xls";
		try {
			final FileOutputStream xlsStream = new FileOutputStream(fileName);
			wb.write(xlsStream);
			xlsStream.flush();
			xlsStream.close();
		} catch (final Exception e) {
			e.printStackTrace();
		}

	}
}

3.调用代码

mc11>java -cp /home/ap/user/webproject/web.war/WEB-INF/lib/*:. com.userpackage.ExcelDemo

说明：/home/ap/user/webproject/web.war/WEB-INF/lib/ 放poi包的目录，多个目录用冒号分隔，最后一个圆点表示当前路径

当前路径：/home/ap/user/webproject/web.war/WEB-INF/classes

ExcelDemo路径：/home/ap/user/webproject/web.war/WEB-INF/classes/com/userpackage/ExcelDemo

生成excel文件路径：/home/ap/user/webproject/web.war/WEB-INF/classes/exceldemo20100805.xls