java.util.zip.GZIPOutputStream.write(byte[] buf, int off, int len)方法将字节数组写入压缩输出流。 该方法将阻塞，直到写入所有字节。
声明
以下是java.util.zip.GZIPOutputStream.write(byte[] buf, int off, int len)方法的声明。
public int write(byte[] buf, int off, int len)
throws IOException
参数
buf- 要写入的数据。off- 数据的起始偏移量。len- 数据的长度。
异常
IOException- 如果发生I/O错误。
示例
以下示例显示了java.util.zip.GZIPOutputStream.write(byte[] buf, int off, int len)方法的用法。
package com.zaixian;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Arrays;
import java.util.zip.DataFormatException;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;
public class GZIPOutputStreamDemo {
public static void main(String[] args) throws DataFormatException, IOException {
String message = "Welcome to xuhuhu.com;"
+"Welcome to xuhuhu.com;"
+"Welcome to xuhuhu.com;"
+"Welcome to xuhuhu.com;"
+"Welcome to xuhuhu.com;"
+"Welcome to xuhuhu.com;"
+"Welcome to xuhuhu.com;"
+"Welcome to xuhuhu.com;"
+"Welcome to xuhuhu.com;"
+"Welcome to xuhuhu.com;";
System.out.println("Original Message length : " + message.length());
byte[] input = message.getBytes("UTF-8");
// Compress the bytes
ByteArrayOutputStream arrayOutputStream = new ByteArrayOutputStream();
GZIPOutputStream outputStream = new GZIPOutputStream(arrayOutputStream);
outputStream.write(input,0, input.length);
outputStream.close();
//Read and decompress the data
byte[] readBuffer = new byte[5000];
ByteArrayInputStream arrayInputStream =
new ByteArrayInputStream(arrayOutputStream.toByteArray());
GZIPInputStream inputStream = new GZIPInputStream(arrayInputStream);
int read = inputStream.read(readBuffer,0,readBuffer.length);
inputStream.close();
//Should hold the original (reconstructed) data
byte[] result = Arrays.copyOf(readBuffer, read);
// 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