Mega Code Archive

 

Categories / Java / File Input Output

 

Compress object and decompress

import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.util.zip.GZIPInputStream; import java.util.zip.GZIPOutputStream; public class Util {   public static byte[] compress(Object data) {     if (data == null) {       return null;     }     try {       ByteArrayOutputStream baos = new ByteArrayOutputStream();       GZIPOutputStream gout = new GZIPOutputStream(baos);       ObjectOutputStream oos = new ObjectOutputStream(gout);       oos.writeObject(data);       oos.flush();       gout.finish();       return baos.toByteArray();     } catch (Exception e) {       e.printStackTrace();     }     return null;   }     public static Object decompress(byte[] data)     {       if (data == null) {         return null;       }       try {         ByteArrayInputStream bais = new ByteArrayInputStream(data);         GZIPInputStream gin = new GZIPInputStream(bais);         ObjectInputStream ois = new ObjectInputStream(gin);         return ois.readObject();       } catch (Exception e) {         e.printStackTrace();       }       return null;     } }