1,Java中操作方法:
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import java.io.*;
public class FileInputStreamTest
{
public static void main(String[] args) throws IOException
{
//创建字节输入流
FileInputStream fis = new FileInputStream( "FileInputStreamTest.java" );
//创建一个长度为1024的竹筒
byte [] bbuf = new byte [ 1024 ];
//用于保存实际读取的字节数
int hasRead = 0 ;
//使用循环来重复“取水”的过程
while ((hasRead = fis.read(bbuf))> 0 )
{
//取出"竹筒"中(字节),将字节数组转成字符串输入
System.out.println( new String(bbuf, 0 ,hasRead));
}
fis.close();
}
}
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import java.io.*;
public class FileReaderTest
{
public static void main(String[] args) throws IOException
{
FileReader fr = null ;
try
{
//创建字符输入流
fr = new FileReader( "FileReaderTest.java" );
//创建一个长度为32的"竹筒"
char [] cbuf = new char [32];
//用于保存实际读取的字符数
int hasRead = 0;
//使用循环来重复“取水”的过程
while ((hasRead = fr.read(cbuf))>0)
{
//取出"竹筒"中(字节),将字节数组转成字符串输入
System. out .println( new String(cbuf,0,hasRead));
}
}
catch (IOException ioe)
{
ioe.printStackTrace();
}
finally
{
//关闭文件输入流
if (fr != null )
{
fr.close();
}
}
}
}
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2,C#中操作方法:
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/* - - - - - - - - - - - - - - - - - - - - - - - -
* Stream 和 byte[] 之间的转换
* - - - - - - - - - - - - - - - - - - - - - - - */
/// <summary>
/// 将 Stream 转成 byte[]
/// </summary>
public byte [] StreamToBytes(Stream stream)
{
byte [] bytes = new byte [stream.Length];
stream.Read(bytes, 0, bytes.Length);
// 设置当前流的位置为流的开始
stream.Seek(0, SeekOrigin.Begin);
return bytes;
}
/// <summary>
/// 将 byte[] 转成 Stream
/// </summary>
public Stream BytesToStream( byte [] bytes)
{
Stream stream = new MemoryStream(bytes);
return stream;
}
/* - - - - - - - - - - - - - - - - - - - - - - - -
* Stream 和 文件之间的转换
* - - - - - - - - - - - - - - - - - - - - - - - */
/// <summary>
/// 将 Stream 写入文件
/// </summary>
public void StreamToFile(Stream stream, string fileName)
{
// 把 Stream 转换成 byte[]
byte [] bytes = new byte [stream.Length];
stream.Read(bytes, 0, bytes.Length);
// 设置当前流的位置为流的开始
stream.Seek(0, SeekOrigin.Begin);
// 把 byte[] 写入文件
FileStream fs = new FileStream(fileName, FileMode.Create);
BinaryWriter bw = new BinaryWriter(fs);
bw.Write(bytes);
bw.Close();
fs.Close();
}
/// <summary>
/// 从文件读取 Stream
/// </summary>
public Stream FileToStream( string fileName)
{
// 打开文件
FileStream fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);
// 读取文件的 byte[]
byte [] bytes = new byte [fileStream.Length];
fileStream.Read(bytes, 0, bytes.Length);
fileStream.Close();
// 把 byte[] 转换成 Stream
Stream stream = new MemoryStream(bytes);
return stream;
}
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以上就是小编为大家带来的Java和C#输入输出流的方法(详解)全部内容了,希望大家多多支持服务器之家~