java.util.zip.DeflaterOutputStream.write(byte[] b, int off, int len)
方法將一個位元組陣列寫入壓縮輸出流。 該方法將阻塞,直到寫入所有位元組。
宣告
以下是java.util.zip.DeflaterOutputStream.write(byte[] b, int off, int len)
方法的宣告。
public void write(byte[] b, int off, int len)
throws IOException
引數
b
- 要寫入的資料。off
- 資料的起始偏移量。len
- 資料的長度。異常
IOException
- 如果發生I/O錯誤。範例
以下範例顯示了java.util.zip.DeflaterOutputStream.write(byte[] b, int off, int len)
方法的用法。
package com.yiibai;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.Arrays;
import java.util.zip.Adler32;
import java.util.zip.CheckedInputStream;
import java.util.zip.DataFormatException;
import java.util.zip.Deflater;
import java.util.zip.DeflaterInputStream;
import java.util.zip.DeflaterOutputStream;
import java.util.zip.Inflater;
import java.util.zip.InflaterInputStream;
public class DeflaterOutputStreamDemo {
public static void main(String[] args) throws DataFormatException, IOException {
String message = "Welcome to Tw511.com;"
+"Welcome to Tw511.com;"
+"Welcome to Tw511.com;"
+"Welcome to Tw511.com;"
+"Welcome to Tw511.com;"
+"Welcome to Tw511.com;"
+"Welcome to Tw511.com;"
+"Welcome to Tw511.com;"
+"Welcome to Tw511.com;"
+"Welcome to Tw511.com;";
String dictionary = "Welcome";
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, 0, input.length);
outputStream.close();
//Read and decompress the data
byte[] readBuffer = new byte[5000];
ByteArrayInputStream arrayInputStream =
new ByteArrayInputStream(arrayOutputStream.toByteArray());
InflaterInputStream inputStream = new InflaterInputStream(arrayInputStream);
int read = inputStream.read(readBuffer);
//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());
}
}
執行上面範例程式碼,得到以下結果 -
Original Message length : 300
UnCompressed Message length : 300