Java IO流 之 BufferedReader BufferedWriter 实例

http://www.verejava.com/?id=16994737475720

package com.bufferedwriter;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

/*
 * 药品名称	规格		生产厂家				有效日期		数量
葡萄糖注射液	50ml:5g	浙江都邦药业股份有限公司	2012-12-14	1000
熊去氧胆酸		40ml:5g	四川协力制药有限公司		2012-12-11	450

 */
public class TestBufferedWriter
{
	public static void main(String[] args)
	{
		List<Medicine> list=new ArrayList<Medicine>();
		list.add(new Medicine("葡萄糖注射液","50ml:5g","浙江都邦药业股份有限公司","2012-12-14",1000));
		list.add(new Medicine("熊去氧胆酸","40ml:5g","四川协力制药有限公司","2012-12-11",450));
		
		BufferedWriter bw=null;
		try
		{
			bw=new BufferedWriter(new FileWriter(new File("res/bufferedwriter/medicine.txt")));
			for(int i=0;i<list.size();i++)
			{
				Medicine item=list.get(i);
				
				bw.write(item.getName()+","+item.getFormat()+","+item.getCompany()+","+item.getValidDate()+","+item.getQuantity());
				bw.newLine();
			}
			bw.flush();
			
		} catch (IOException e)
		{
			e.printStackTrace();
		}
		finally
		{
			try
			{
				bw.close();
			} catch (IOException e)
			{
				e.printStackTrace();
			}
		}
		
	}
}





package com.bufferedwriter;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

/*
 * 药品名称	规格		生产厂家				有效日期		数量
葡萄糖注射液	50ml:5g	浙江都邦药业股份有限公司	2012-12-14	1000
熊去氧胆酸		40ml:5g	四川协力制药有限公司		2012-12-11	450

 */
public class TestBufferedReader
{
	public static void main(String[] args)
	{
		List<Medicine> list=new ArrayList<Medicine>();
		
		BufferedReader br=null;
		try
		{
			br=new BufferedReader(new FileReader(new File("res/bufferedwriter/medicine.txt")));
			String str=null;
			while((str=br.readLine())!=null)
			{
				String[] strArray=str.split(",");
				String name=strArray[0];
				String format=strArray[1];
				String company=strArray[2];
				String validDate=strArray[3];
				int quantity=Integer.parseInt(strArray[4]);
				list.add(new Medicine(name,format,company,validDate,quantity));
			}
			
		} catch (IOException e)
		{
			e.printStackTrace();
		}
		finally
		{
			try
			{
				br.close();
			} catch (IOException e)
			{
				e.printStackTrace();
			}
		}
		
		for(int i=0;i<list.size();i++)
		{
			Medicine item=list.get(i);
			System.out.println(item.getName()+","+item.getFormat()+","+item.getCompany()+","+item.getValidDate()+","+item.getQuantity());
		}
		
	}
}





package com.bufferedwriter;

public class Medicine
{
	private String name;
	private String format;
	private String company;
	private String validDate;
	private int quantity;
	public Medicine(String name, String format, String company,
			String validDate, int quantity)
	{
		super();
		this.name = name;
		this.format = format;
		this.company = company;
		this.validDate = validDate;
		this.quantity = quantity;
	}
	public String getName()
	{
		return name;
	}
	public void setName(String name)
	{
		this.name = name;
	}
	public String getFormat()
	{
		return format;
	}
	public void setFormat(String format)
	{
		this.format = format;
	}
	public String getCompany()
	{
		return company;
	}
	public void setCompany(String company)
	{
		this.company = company;
	}
	public String getValidDate()
	{
		return validDate;
	}
	public void setValidDate(String validDate)
	{
		this.validDate = validDate;
	}
	public int getQuantity()
	{
		return quantity;
	}
	public void setQuantity(int quantity)
	{
		this.quantity = quantity;
	}
	
	
	
}

http://www.verejava.com/?id=16994737475720