Java IO流，

来源： javaer 分享于 2025-04-13 点击 28227 次点评：123

Java IO流，

说明

IO流在java中很重要，文件的上传下载，网络的数据传输都需要利用到IO流
分别从IO流的类别以及IO流的用法进行说明，后面的例子带有zhus注释，可以更好的理解IO流

一、IO流思维导图

二、例子目录结构

1.字节流

JDK提供的源码

InputStreamAndOutputStream.java

   /**    
    * @Title: InputStream.java  
    * @Package com.lut.wy  
    * @Description: TODO 
    * @author Licon  
    * @date 2018年8月25日  
    * @version V1.0    
    */  
package com.lut.wy;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

/**  
    * @ClassName: InputStream  
    * @Description: TODO  
    * @author Licon  
    * @date 2018年8月25日  
    *    
    */
public class InputStreamAndOutputStream {
	public static void main(String[] args) {
		InputStream();
		//OutputStream();
	}
	public static void InputStream() {
		InputStream in =null;
		//从控制台获取用户输入的数据
		in = System.in;
		try {
			//调用read()方法，来获取接收到的数据的int类型值
			//此方法会造成线程阻塞
			int read = 0;
			while(read != -1) {
				read=in.read();
				System.out.println(read);
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			try {
				if(in != null) {
					in.close();
				}
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
	
	public static void OutputStream() {
		OutputStream out =null;
		try {
			out = System.out;
			byte [] byt = new byte[10];
			byt[0]=97;//a
			byt[1]=98;//b
			byt[2]=99;//c
			byt[3]=100;//d
			byt[4]=101;//e
			byt[5]=102;//f
			out.write(byt,0,3);
			out.flush();
		} catch (Exception e) {
			e.printStackTrace();
		}finally {
			try {
				if(out != null) {
					out.close();
				}
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
}

ByteArrayInputAndOutputStream.java

   /**    
    * @Title: ByteArrayInputAndOutputStream.java  
    * @Package com.lut.wy  
    * @Description: TODO 
    * @author Licon  
    * @date 2018年8月25日  
    * @version V1.0    
    */  
package com.lut.wy;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

/**  
    * @ClassName: ByteArrayInputAndOutputStream  
    * @Description: TODO  
    * @author Licon  
    * @date 2018年8月25日  
    *    
    */
public class ByteArrayInputAndOutputStream {
	public static void main(String[] args) {
		InputStream in =null;
		OutputStream out = null;
		
		String str = "hello wy";
		try {
			in = new ByteArrayInputStream(str.getBytes());//将字串变成byte数组，供ByteArrayInputStream输入
			int len =-1;
			//将in读取的字节数组进行输出。
			/*while((len = in.read()) != -1) {
				System.out.write(len);//标准输出流输出
				System.out.flush();//刷新流中的缓存
			}*/
			//使用字节数组输出流输出字节数组输入流的内容
			out = new ByteArrayOutputStream();
			byte [] byt = new byte[10];
			while((len = in.read(byt)) != -1) {
				out.write(byt, 0, len);
				out.flush();
			}
			System.out.println("使用字节数组输出流得到的："+out.toString());
			
			
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			try {
				if(out != null) {
					out.close();
				}
				if(in != null) {
					in.close();
				}
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
}

FileInputAndFileOutputSream.java

   /**    
    * @Title: FileInputAndFileOutputSream.java  
    * @Package com.lut.wy  
    * @Description: TODO 
    * @author Licon  
    * @date 2018年8月25日  
    * @version V1.0    
    */  
package com.lut.wy;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

/**  
    * @ClassName: FileInputAndFileOutputSream  
    * @Description: TODO  
    * @author Licon  
    * @date 2018年8月25日  
    *    
    */
public class FileInputAndFileOutputSream {
	public static void main(String[] args) {
		//多态声明，使用父类接受子类
		InputStream is = null;
		OutputStream os = null;
		try {
			is = new FileInputStream(new File("src/com/lut/wy/a.txt"));//创建文件输入流
			//指定一次从文件读取多少个字节存入该数组
			byte[] byt = new byte[1024];
			int len = -1;
			/*while((len = is.read(byt)) != -1) {
				System.out.println(new String(byt,0,len));//将字节数组的有效有效长度转换为字串输出
			}*/
			os = new FileOutputStream(new File("src/com/lut/wy/b.txt"));//向b文件中写入字节
			//将文件输入流中的内容通过文件字节输出流输出到另一个文件中
			while((len = is.read(byt)) != -1) {
				os.write(byt, 0, len);
				os.flush();
			}
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			try {
				if(is != null) {
					is.close();
				}
				if(os != null) {
					os.close();
				}
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
}

PipedInputAndPipedOutputStream.java

   /**    
    * @Title: PipedInputAndPipedOutputStream.java  
    * @Package com.lut.wy  
    * @Description: TODO 
    * @author Licon  
    * @date 2018年8月25日  
    * @version V1.0    
    */  
package com.lut.wy;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PipedInputStream;
import java.io.PipedOutputStream;


/**  
    * @ClassName: PipedInputAndPipedOutputStream  
    * @Description: TODO  
    * @author Licon  
    * @date 2018年8月25日  
    *    
    */
public class PipedInputAndPipedOutputStream {
	public static void main(String[] args) {
		//这是两个管道流，使用两个线程，一个读一个写，产生10位随机密码
		PipedInputStream pis =null;
		PipedOutputStream pos =null;
		ReadThread read =null;
		WriteThread write =null;
		try {
			pis = new PipedInputStream();
			pos = new PipedOutputStream(pis);
			read= new ReadThread(pis, "read");
			write=new WriteThread(pos, "write");
			read.start();
			write.start();
		} catch (Exception e) {
			// TODO: handle exception
		}
	}
}
	/**
	 * 读取线程
	    * @ClassName: ReadThread  
	    * @Description: TODO  
	    * @author Licon  
	    * @date 2018年8月25日  
	    *
	 */
class ReadThread extends Thread{
	InputStream in =null;
	/**  
	 * Instance ReadThread.  
	 *    
	 */
	public ReadThread(PipedInputStream pis,String name) {
		super(name);
		this.in=pis;
	}
	  /* (！Javadoc)  
	    *   
	    *     
	    * @see java.lang.Thread#run()  
	    */
	@Override
	public void run() {
		try {
			int len =-1;
			while((len=in.read()) != -1) {
				System.out.write(len);;
				System.out.flush();
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} finally {
			try {
				if(in != null) {
					in.close();
				}
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
}
/**
 * 写线程
    * @ClassName: WriteThread  
    * @Description: TODO  
    * @author Licon  
    * @date 2018年8月25日  
    *
 */
class WriteThread extends Thread{
	OutputStream out =null;
	/**  
	 * Instance WriteThread.  
	 *    
	 */
	public WriteThread(PipedOutputStream pos,String name) {
		super(name);
		this.out=pos;
	}
	  /* (！Javadoc)  
	    *   
	    *     
	    * @see java.lang.Thread#run()  
	    */
	@Override
	public void run() {
		String str="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890.!@#$%^&*()";
		int len=-1;
		try {
		for(int i=0;i<10;i++){
			int num =(int) (Math.random()*str.length()+1);
			len=str.charAt(num);
				out.write(len);
				out.flush();
				sleep(1000);
		    }
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}finally {
				try {
					if(out != null) {
						out.close();
					}
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}
	}
}

BufferedInputAndBufferedOutputStream.java

   /**    
    * @Title: BufferedInputAndOutputStream.java  
    * @Package com.lut.wy  
    * @Description: TODO 
    * @author Licon  
    * @date 2018年8月25日  
    * @version V1.0    
    */  
package com.lut.wy;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

/**  
    * @ClassName: BufferedInputAndOutputStream  
    * @Description: TODO  
    * @author Licon  
    * @date 2018年8月25日  
    *    
    */
public class BufferedInputAndBufferedOutputStream {
	public static void main(String[] args) {
		//buffed包装流，提供多种方法
		InputStream is =null;
		OutputStream os =null;
		BufferedInputStream bis =null;
		BufferedOutputStream bos =null;
		
		try {
			is = new FileInputStream("src/com/lut/wy/a.txt");
			os = new FileOutputStream("src/com/lut/wy/b.txt");
			bis = new BufferedInputStream(is);
			bos = new BufferedOutputStream(os);
			int len = -1;
			/*while((len = bis.read()) != -1) {
				System.out.write(len);
				System.out.flush();
			}*/
			
			while((len  = bis.read()) != -1) {
				bos.write(len);
				bos.flush();
			}
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

DataInputAndDataOutputStream.java

   /**    
    * @Title: DataInputAndDataOutputStream.java  
    * @Package com.lut.wy  
    * @Description: TODO 
    * @author Licon  
    * @date 2018年8月25日  
    * @version V1.0    
    */  
package com.lut.wy;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

/**  
    * @ClassName: DataInputAndDataOutputStream  
    * @Description: TODO  
    * @author Licon  
    * @date 2018年8月25日  
    *    
    */
public class DataInputAndDataOutputStream {
	//可以读和写各种数据类型，常用的为UTF
	public static void main(String[] args) {
		InputStream is =null;
		OutputStream os =null;
		DataInputStream dis =null;
		DataOutputStream dos =null;
		try {
			is = new FileInputStream("src/com/lut/wy/a.txt");
			os = new FileOutputStream("src/com/lut/wy/b.txt");
			dis = new DataInputStream(is);
			dis.read();
			dos = new DataOutputStream(os);
			dos.writeUTF("666");
			dos.flush();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			try {
				if(dis != null) {
					dis.close();
				}
				if(is != null) {
					is.close();
				}
				if(dos != null) {
					dos.close();
				}
				if(os != null) {
					os.close();
				}
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
}

CharArrayReaderAndCharArrayWriter.java

   /**    
    * @Title: ReaderAndWriter.java  
    * @Package com.lut.wy  
    * @Description: TODO 
    * @author Licon  
    * @date 2018年8月29日  
    * @version V1.0    
    */  
package com.lut.wy;

import java.io.CharArrayReader;
import java.io.CharArrayWriter;
import java.io.IOException;
import java.io.Reader;
import java.io.Writer;

/**  
    * @ClassName: ReaderAndWriter  
    * @Description: TODO  
    * @author Licon  
    * @date 2018年8月29日  
    *    
    */
public class CharArrayReaderAndCharArrayWriter {
	public static void main(String[] args) {
		Reader r = null;
		Writer w = null;
		char [] ch = new char[10];
		ch[0]=97;
		ch[1]=98;
		ch[2]=99;
		ch[3]=100;
		ch[4]=101;
		r = new CharArrayReader(ch);
		w = new CharArrayWriter();
		try {
			//使用标准输出流打印读取的内容
			/*int len = -1;
			while((len =  r.read()) != -1) {
				System.out.write(len);
				System.out.flush();
			}*/
			
			//使用字符数组写入流写出读取的字符数组
			int len = -1;
			while((len =  r.read()) != -1) {
				w.write(len);
				w.flush();
			}
			System.out.println(w.toString());
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			try {
				if(r != null) {
					r.close();
				}
				if(w != null) {
					w.close();
				}
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
}

FileReaderAndFileWriter.java

   /**    
    * @Title: FileReaderAndFileWriter.java  
    * @Package com.lut.wy  
    * @Description: TODO 
    * @author Licon  
    * @date 2018年8月29日  
    * @version V1.0    
    */  
package com.lut.wy;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Reader;
import java.io.Writer;

/**  
    * @ClassName: FileReaderAndFileWriter  
    * @Description: TODO  
    * @author Licon  
    * @date 2018年8月29日  
    *    
    */
public class FileReaderAndFileWriter {
	public static void main(String[] args) {
		Reader r = null;
		Writer w = null;
		try {
			r = new FileReader(new File("src/com/lut/wy/a.txt"));
			w = new FileWriter(new File("src/com/lut/wy/c.txt"));
			char []ch = new char[20];
			int len = -1;
			//一个字符一个字符读取并存入ch字符数组，使用字符写入流写入c.txt文件
			while((len = r.read(ch)) != -1) {
				w.write(ch, 0, len);
				w.flush();
			}
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			try {
				if(r != null) {
					r.close();
				}
				if(w != null) {
					w.close();
				}
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
}

BufferedReaderAndBufferedWriter.java

   /**    
    * @Title: BufferedReaderAndBufferedWriter.java  
    * @Package com.lut.wy  
    * @Description: TODO 
    * @author Licon  
    * @date 2018年8月29日  
    * @version V1.0    
    */  
package com.lut.wy;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Reader;
import java.io.Writer;

/**  
    * @ClassName: BufferedReaderAndBufferedWriter  
    * @Description: TODO  
    * @author Licon  
    * @date 2018年8月29日  
    *    
    */
public class BufferedReaderAndBufferedWriter {
	public static void main(String[] args) {
		Reader r = null;
		Writer w = null;
		BufferedReader br = null;
		BufferedWriter bw = null;
		try {
			r = new FileReader(new File("src/com/lut/wy/a.txt"));
			w = new FileWriter(new File("src/com/lut/wy/d.txt"));
			br = new BufferedReader(r);
			bw = new BufferedWriter(w);
			//包装后的字符流可以读取一行
			/*String str = null;
			while((str = br.readLine()) != null) {
				System.out.println(str);
			}*/
			
			//包装后的字符流可以写入一行
			//将读取的字符流一行一行写入d.txt
			String str = null;
			while((str = br.readLine()) != null) {
				bw.write(str);
				bw.flush();
				bw.newLine();//不加这句,会在d.txt中将读取的字串连接在一起
			}
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			try {
				if(bw != null) {
					bw.close();
				}
				if(br != null) {
					br.close();
				}
				if(w != null) {
					w.close();
				}
				if(r != null) {
					r.close();
				}
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		
	}
}

InputStreamReaderAndOutputStreamWriter.java

   /**    
    * @Title: InputStreamReaderAndOutputStreamWriter.java  
    * @Package com.lut.wy  
    * @Description: TODO 
    * @author Licon  
    * @date 2018年8月29日  
    * @version V1.0    
    */  
package com.lut.wy;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.io.UnsupportedEncodingException;
import java.io.Writer;

/**  
    * @ClassName: InputStreamReaderAndOutputStreamWriter  
    * @Description: TODO  
    * @author Licon  
    * @date 2018年8月29日  
    *    
    */
public class InputStreamReaderAndOutputStreamWriter {
	public static void main(String[] args) {
		InputStream is = null;
		OutputStream os = null;
		Reader r = null;
		Writer w = null;
		try {
			is = new FileInputStream(new File("src/com/lut/wy/a.txt"));
			os = new FileOutputStream(new File("src/com/lut/wy/e.txt"));
			r = new InputStreamReader(is, "utf-8");//利用字节流转换字符流将其转换，并设置字符编码
			w = new OutputStreamWriter(os);
			/*
			 * 后面就可以根据操作字符流一样操作字节流,还可以对字符流进行包装
			 */
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (UnsupportedEncodingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			try {
				if(r != null) {
					r.close();
				}
				if(w != null) {
					w.close();
				}
				if(is != null) {
					is.close();
				}
				if(os != null) {
					os.close();
				}
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
}

Student.java ObjectInputStreamAndObjectOutputStream.java

   /**    
    * @Title: Student.java  
    * @Package com.lut.wy  
    * @Description: TODO 
    * @author Licon  
    * @date 2018年8月29日  
    * @version V1.0    
    */  
package com.lut.wy;

import java.io.Serializable;

/**  
    * @ClassName: Student  一个存取数据的bean
    * @Description: TODO  
    * @author Licon  
    * @date 2018年8月29日  
    *    
    */
public class Student implements Serializable{
	   /**  
	    * @Fields field:field:{todo} 序列化id
	    */  
	private static final long serialVersionUID = -1501551742453125001L;
	private int id;
	private String name;
	private char gender;
	private int age;
	
	public Student(int id, String name, char gender, int age) {
		super();
		this.id = id;
		this.name = name;
		this.gender = gender;
		this.age = age;
	}
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public char getGender() {
		return gender;
	}
	public void setGender(char gender) {
		this.gender = gender;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	@Override
	public String toString() {
		return "Student [id=" + id + ", name=" + name + ", gender=" + gender + ", age=" + age + "]";
	}
	
}

   /**    
    * @Title: ObjectInputStreamAndObjectOutputStream.java  
    * @Package com.lut.wy  
    * @Description: TODO 
    * @author Licon  
    * @date 2018年8月29日  
    * @version V1.0    
    */  
package com.lut.wy;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.OutputStream;

/**  
    * @ClassName: ObjectInputStreamAndObjectOutputStream  
    * @Description: TODO  用于序列户，可将一个对象写入文件，也可也反序列化，将一个对象从文件中读出
    * @author Licon  
    * @date 2018年8月29日  
    *    
    */
public class ObjectInputStreamAndObjectOutputStream {
	public static void main(String[] args) {
		InputStream is =null;
		OutputStream os =null;
		ObjectInputStream ois = null;
		ObjectOutputStream oos = null;
		try {
			is = new FileInputStream(new File("src/com/lut/wy/f.txt"));
			//写入与读取不能同时开启
			//os = new FileOutputStream(new File("src/com/lut/wy/f.txt"));
			ois = new ObjectInputStream(is);
			//oos = new ObjectOutputStream(os);
			//Student stu = new Student(1,"wyy",'f',22);
			//oos.writeObject(stu);
			//oos.flush();
			System.out.println( ois.readObject());
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			try {
				if(oos != null) {
					oos.close();
				}
				if(ois != null) {
					ois.close();
				}
				if(is != null) {
					is.close();
				}
				if(os != null) {
					os.close();
				}
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
}

PrintWriterTest.java

   /**    
    * @Title: PrintWriter.java  
    * @Package com.lut.wy  
    * @Description: TODO 
    * @author Licon  
    * @date 2018年8月29日  
    * @version V1.0    
    */  
package com.lut.wy;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
/**  
    * @ClassName: PrintWriter  
    * @Description: TODO  
    * @author Licon  
    * @date 2018年8月29日  
    *    
    */
public class PrintWriterTest {
	public static void main(String[] args) {
		InputStream is =null;
		PrintWriter pw = null;
		InputStreamReader isr =null;
		BufferedReader br = null;
		try {
			is = new FileInputStream(new File("src/com/lut/wy/a.txt"));
			isr = new InputStreamReader(is);
			br = new BufferedReader(isr);
			pw = new PrintWriter(new File("src/com/lut/wy/g.txt"));
			String str=null;
			while((str = br.readLine()) != null){	
				pw.println(str);
			}
			pw.flush();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			try {
				if(pw != null) {
					pw.close();
				}
				if(br != null) {
					br.close();
				}
				if(isr != null) {
					isr.close();
				}
				if(is != null) {
					is.close();
				}
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
}

Java IO流，

Java IO流，

说明

一、IO流思维导图

二、例子目录结构

1.字节流

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