Java Java.util.zip.InflaterOutputStream用法及代码示例

此类实现一个输出流过滤器，用于解压缩以 “deflate” 压缩格式存储的数据。
构造函数

InflaterOutputStream(输出流输出)：创建具有默认解压缩器和缓冲区大小的新输出流。
InflaterOutputStream(OutputStream out, Inflater infl):使用指定的解压缩器和默认缓冲区大小创建新的输出流。
InflaterOutputStream(OutputStream out, Inflater infl, int bufLen):使用指定的解压缩器和缓冲区大小创建新的输出流。

方法：

无效close()：将任何剩余的未压缩数据写入输出流并关闭底层输出流。

Syntax :
public void close()
           throws IOException
Overrides:
close in class FilterOutputStream
Throws:
IOException

无效finish()：完成将未压缩数据写入输出流，而不关闭底层流。
```
Syntax :public void finish()
            throws IOException
Throws:
IOException
```

无效flush()：刷新此输出流，强制写入任何挂起的缓冲输出字节。

Syntax :public void flush()
           throws IOException
Overrides:
flush in class FilterOutputStream
Throws:
IOException

void write(byte[] b, int off, int len):将字节数组写入未压缩的输出流。

Syntax :public void write(byte[] b,
         int off,
         int len)
           throws IOException
Overrides:
write in class FilterOutputStream
Parameters:
b - buffer containing compressed data to decompress and write to the output stream
off - starting offset of the compressed data within b
len - number of bytes to decompress from b
Throws:
IndexOutOfBoundsException 
IOException
NullPointerException 
ZipException

无效写入(int b)：将一个字节写入未压缩的输出流。

Syntax :public void write(int b)
           throws IOException
Parameters:
b - a single byte of compressed data to decompress and write to the output stream
Throws:
IOException
ZipException

程序1:


//Java program to illustrate InflaterInputStream class 
import java.io.*; 
import java.util.Arrays; 
import java.util.zip.DeflaterInputStream; 
import java.util.zip.InflaterOutputStream; 
  
class InflaterOutputStreamDemo  
{ 
    public static void main(String[] args) throws IOException  
    { 
        byte b[] = {1, 2, 3, 4, 5, 6}; 
        ByteArrayInputStream bin = new ByteArrayInputStream(b); 
        DeflaterInputStream din = new DeflaterInputStream(bin); 
        byte c[] = new byte[10]; 
        din.read(c); 
        din.close(); 
  
  
        ByteArrayOutputStream bos = new ByteArrayOutputStream(); 
        InflaterOutputStream ios = new InflaterOutputStream(bos); 
        //illustrating write(byte b[],int off,int len) 
        ios.write(c); 
  
        //flushing 
        ios.flush(); 
          
        //Finishes writing uncompressed data to the output stream 
        // without closing the underlying stream. 
        ios.finish(); 
        System.out.println(Arrays.toString(bos.toByteArray())); 
        bos.close(); 
          
        //illustrating close() 
        ios.close(); 
    } 
}

输出：

[1, 2, 3, 4, 5, 6]

程序2:


//Java program to illustrate InflaterInputStream class 
import java.io.*; 
import java.util.Arrays; 
import java.util.zip.DeflaterInputStream; 
import java.util.zip.InflaterOutputStream; 
  
class InflaterOutputStreamDemo  
{ 
    public static void main(String[] args) throws IOException  
    { 
        byte b[] = {1, 2, 3, 4, 5, 6}; 
        ByteArrayInputStream bin = new ByteArrayInputStream(b); 
        DeflaterInputStream din = new DeflaterInputStream(bin); 
        FileOutputStream fos=new FileOutputStream("file.txt"); 
        byte c[] = new byte[10]; 
        din.read(c); 
        fos.write(c); 
        din.close(); 
        fos.close(); 
  
        //reading the compressed data 
        FileInputStream fis = new FileInputStream("file.txt"); 
  
        ByteArrayOutputStream bos1=new ByteArrayOutputStream(); 
        InflaterOutputStream ios = new InflaterOutputStream(bos1); 
        int ch; 
          
        //illustrating write() method 
        while ( (ch=fis.read() ) != -1)  
        { 
            ios.write(ch); 
        } 
        System.out.print(Arrays.toString(bos1.toByteArray())); 
    } 
  
}

输出：

[1, 2, 3, 4, 5, 6]

下一篇： Java 中的 Java.util.zip.InflaterInputStream 类

相关用法

注：本文由纯净天空筛选整理自佚名大神的英文原创作品 Java.util.zip.InflaterOutputStream class in Java。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。