java.util.zip.InflaterOutputStream.write() 方法示例

描述

java.util.zip.InflaterOutputStream.write(int b) 方法向壓縮輸出流中寫入一個位元組。如果位元組無法寫入，該方法將一直阻塞。

宣告

以下是 java.util.zip.InflaterOutputStream.write(int b) 方法的宣告。

public void write(int b)
 throws IOException

引數

• b − 要寫入的位元組。

異常

• IOException − 如果發生了 I/O 錯誤。

• ZipException − 如果發生了壓縮 (ZIP) 格式錯誤。

示例

以下示例展示了 java.util.zip.InflaterOutputStream.write(int b) 方法的使用方法。

package com.tutorialspoint;

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 TutorialsPoint.com;"
         +"Welcome to TutorialsPoint.com;"
         +"Welcome to TutorialsPoint.com;"
         +"Welcome to TutorialsPoint.com;"
         +"Welcome to TutorialsPoint.com;"
         +"Welcome to TutorialsPoint.com;"
         +"Welcome to TutorialsPoint.com;"
         +"Welcome to TutorialsPoint.com;"
         +"Welcome to TutorialsPoint.com;"
         +"Welcome to TutorialsPoint.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();
      for(int i = 0; i < output.length; i++){
         inflaterOutputStream.write(output[i]);
      }
      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());
   }
}

讓我們編譯並執行以上程式，將產生以下結果 −

Original Message length : 300
UnCompressed Message length : 300