Java Java类
此类实现了一个输出流过滤器，用于解压缩以“deflate”压缩格式存储的数据。
构造函数
- InflaterOutputStream(OutputStream out) ：创建一个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一个新的输出流。
- InflaterOutputStream(OutputStream out, Inflater infl, int bufLen) ：使用指定的解压器和缓冲区大小创建一个新的输出流。
方法：
- void 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 - void finish() ：在不关闭底层流的情况下完成将未压缩数据写入输出流。
Syntax :public void finish() throws IOException Throws: IOException - void flush() ：刷新此输出流，强制写入任何待处理的缓冲输出字节。
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 - void write(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]方案二：
//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 ：
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