第四篇：JAVA操作Excel

Excel是我们平时工作中比较常用的用于存储二维表数据的，Java也可以直接对Excel进行操作，在这篇博客中将为大家介绍两种操作Excel的方式，分别为：jxl和poi。

jxl

写Excel

import java.io.File;
import java.io.IOException;

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

/**
* jxl写Excel
*
* @author jianggujin
*
*/
public class JxlWriteDemo
{
public static void main(String[] args) throws IOException, WriteException
{
File xlsFile = new File("jxl.xls");
// 创建一个工作簿
WritableWorkbook workbook = Workbook.createWorkbook(xlsFile);
// 创建一个工作表
WritableSheet sheet = workbook.createSheet("sheet1", 0);
for (int row = 0; row < 10; row++)
{
for (int col = 0; col < 10; col++)
{
// 向工作表中添加数据
sheet.addCell(new Label(col, row, "data" + row + col));
}
}
workbook.write();
workbook.close();
}
}

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读Excel

import java.io.File;
import java.io.IOException;

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

/**
* jxl读excel
*
* @author jianggujin
*
*/<
4000
/span>
public class JxlReadDemo
{
public static void main(String[] args) throws BiffException, IOException
{
File xlsFile = new File("jxl.xls");
// 获得工作簿对象
Workbook workbook = Workbook.getWorkbook(xlsFile);
// 获得所有工作表
Sheet[] sheets = workbook.getSheets();
// 遍历工作表
if (sheets != null)
{
for (Sheet sheet : sheets)
{
// 获得行数
int rows = sheet.getRows();
// 获得列数
int cols = sheet.getColumns();
// 读取数据
for (int row = 0; row < rows; row++)
{
for (int col = 0; col < cols; col++)
{
System.out.printf("%10s", sheet.getCell(col, row)
.getContents());
}
System.out.println();
}
}
}
workbook.close();
}
}

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poi

写Excel

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

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

/**
* Poi写Excel
*
* @author jianggujin
*
*/
public class PoiWriteDemo
{
public static void main(String[] args) throws IOException
{
// 创建工作薄
HSSFWorkbook workbook = new HSSFWorkbook();
// 创建工作表
HSSFSheet sheet = workbook.createSheet("sheet1");

for (int row = 0; row < 10; row++)
{
HSSFRow rows = sheet.createRow(row);
for (int col = 0; col < 10; col++)
{
// 向工作表中添加数据
rows.createCell(col).setCellValue("data" + row + col);
}
}

File xlsFile = new File("poi.xls");
FileOutputStream xlsStream = new FileOutputStream(xlsFile);
workbook.write(xlsStream);
}
}

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读Excel

import java.io.File;
import java.io.IOException;

import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;

/**
* Poi写Excel
*
* @author jianggujin
*
*/
public class PoiReadDemo
{
public static void main(String[] args) throws IOException,
InvalidFormatException
{
File xlsFile = new File("poi.xls");
// 获得工作簿
Workbook workbook = WorkbookFactory.create(xlsFile);
// 获得工作表个数
int sheetCount = workbook.getNumberOfSheets();
// 遍历工作表
for (int i = 0; i < sheetCount; i++)
d9fb

{
Sheet sheet = workbook.getSheetAt(i);
// 获得行数
int rows = sheet.getLastRowNum() + 1;
// 获得列数，先获得一行，在得到改行列数
Row tmp = sheet.getRow(0);
if (tmp == null)
{
continue;
}
int cols = tmp.getPhysicalNumberOfCells();
// 读取数据
for (int row = 0; row < rows; row++)
{
Row r = sheet.getRow(row);
for (int col = 0; col < cols; col++)
{
System.out.printf("%10s", r.getCell(col).getStringCellValue());
}
System.out.println();
}
}
}
}

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jxl和Poi两种方式在操作Excel的时候，各有优缺点，所以在开发时应考虑实际情况选用。