java.util.zip.InflaterOutputStream.write(byte[] b, int off, int len)
方法将一个字节数组写入压缩输出流。
声明
以下是java.util.zip.InflaterOutputStream.write(byte[] b, int off, int len)
方法的声明。
public void write(byte[] b, int off, int len)
throws IOException
参考
b
- 要写入的数据。off
- 数组b
的起始偏移量。len
- 数据的长度。
异常
IOException
- 如果发生I/O错误。IndexOutOfBoundsException
- 如果off < 0
,或者len <0
,或者len> b.length - off
。IOException
- 如果发生I/O错误或此流已关闭。NullPointerException
- 如果b
为null
。
示例
以下示例显示了java.util.zip.InflaterOutputStream.write(byte[] b, int off, int len)
方法的用法。
package com.yiibai;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Arrays;
import java.util.zip.DataFormatException;
import java.util.zip.DeflaterOutputStream;
import java.util.zip.InflaterOutputStream;
public class InflaterOutputStreamDemo {
public static void main(String[] args) throws DataFormatException, IOException {
String message = "Welcome to Yiibai.com;"
+"Welcome to Yiibai.com;"
+"Welcome to Yiibai.com;"
+"Welcome to Yiibai.com;"
+"Welcome to Yiibai.com;"
+"Welcome to Yiibai.com;"
+"Welcome to Yiibai.com;"
+"Welcome to Yiibai.com;"
+"Welcome to Yiibai.com;"
+"Welcome to Yiibai.com;";
System.out.println("Original Message length : " + message.length());
byte[] input = message.getBytes("UTF-8");
// Compress the bytes
ByteArrayOutputStream arrayOutputStream = new ByteArrayOutputStream();
DeflaterOutputStream outputStream = new DeflaterOutputStream(arrayOutputStream);
outputStream.write(input);
outputStream.close();
//Read and decompress the data
InflaterOutputStream inflaterOutputStream = null;
ByteArrayOutputStream decompressedOutputStream = null;
decompressedOutputStream = new ByteArrayOutputStream();
inflaterOutputStream = new InflaterOutputStream(decompressedOutputStream);
byte[] output = arrayOutputStream.toByteArray();
inflaterOutputStream.write(output,0,output.length);
inflaterOutputStream.flush();
inflaterOutputStream.close();
//Should hold the original (reconstructed) data
byte[] result = Arrays.copyOf(decompressedOutputStream.toByteArray(), 300);
// Decode the bytes into a String
message = new String(result, "UTF-8");
System.out.println("UnCompressed Message length : " + message.length());
}
}
执行上面示例代码,得到以下结果 -
Original Message length : 300
UnCompressed Message length : 300