java操作Excel的poi 格式设置

时间:2023-01-15 00:27:12

格式设置

  

package com.java.poi;

import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.*; import java.io.FileOutputStream;
import java.util.Calendar;
import java.util.Date; /**
* 格式化
* @author nidegui
* @create 2019-06-17 9:46
*/
public class Test4 { public static void main(String[] args) throws Exception {
Workbook wb=new HSSFWorkbook();
Sheet sheet = wb.createSheet("创建sheet页");
Row row = sheet.createRow(0);//创建行
Cell cell = row.createCell(0);//创建一个单元格, 第一列
cell.setCellValue(new Date()); //给单元格设置值 CreationHelper creationHelper = wb.getCreationHelper(); CellStyle cellStyle = wb.createCellStyle(); //创建工作簿的样式
cellStyle.setDataFormat(creationHelper.createDataFormat().getFormat("yyyy-mm-dd hh:mm:ss"));
cell=row.createCell(1); //第二列
cell.setCellValue(new Date());
cell.setCellStyle(cellStyle); /**
* 第二中样式
*/
row.createCell(2); //第三列
cell.setCellValue(Calendar.getInstance());
cell.setCellStyle(cellStyle); FileOutputStream fileOutputStream=new FileOutputStream("E:\\3.xls");
wb.write(fileOutputStream);
fileOutputStream.close();
}
}