POI--HSSFWorkbook类

标签：poi

• HSSFWorkbook类

要生成一个Workbook，需要用到HSSFWorkbook类文件。构造器如下：


现在我们使用2种方式来获得一个Workbook对象。

• 1，创建excel表

HSSFWorkbook workbook = new HSSFWorkbook()。

package linkin;


import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;


public class Linkin
{
	public static void main(String[] args)
	{
		HSSFWorkbook workbook = new HSSFWorkbook();//创建一个空白的workbook


		FileOutputStream out = null;
		try
		{
			out = new FileOutputStream("sample.xls");
			//fileOut= new FileOutputStream("c:\\workbook.xls");
			//fileOut= new FileOutputStream("c:/workbook.xls");
			workbook.write(out);//调用HSSFWorkbook类的write方法写入到输出流
			System.out.println("OK");
		}
		catch (IOException e)
		{
			System.out.println(e.toString());
		}
		finally
		{
			try
			{
				out.close();
			}
			catch (IOException e)
			{
				System.out.println(e.toString());
			}
		}


	}


}

• 2，POIFSFileSystem类定义

package linkin;


import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;


public class Linkin
{
	public static void main(String[] args)
	{
		FileInputStream in = null;
		HSSFWorkbook workbook = null;


		try
		{
			in = new FileInputStream("sample1.xls");//将excel文件转为输入流
			POIFSFileSystem fs = new POIFSFileSystem(in);//构建POIFSFileSystem类对象，用输入流构建
			workbook = new HSSFWorkbook(fs);//创建个workbook，根据POIFSFileSystem对象
			System.out.println("OK");
		}
		catch (IOException e)
		{
			System.out.println(e.toString());
		}
		finally
		{
			try
			{
				in.close();
			}
			catch (IOException e)
			{
				System.out.println(e.toString());
			}
		}


		FileOutputStream out = null;
		try
		{
			out = new FileOutputStream("sample2.xls");
			workbook.write(out);
			System.out.println("OK");
		}
		catch (IOException e)
		{
			System.out.println(e.toString());
		}
		finally
		{
			try
			{
				out.close();
			}
			catch (IOException e)
			{
				System.out.println(e.toString());
			}
		}


	}


}

POI--HSSFWorkbook类

标签：poi

原文地址：http://blog.csdn.net/u011794238/article/details/46275267