如何将序列化的对象压缩到文件中

清疚 2023-02-15 07:49 6阅读 0赞

在上一节中，您将学习[如何将对象写入文件或序列化为文件][Link 1] 。 在此示例中，您不仅可以序列化它，还可以压缩序列化的对象以减小文件大小。

这个想法非常简单，仅使用“ **GZIPOutputStream** ”进行数据压缩。

FileOutputStream fos = new FileOutputStream("c:\\address.gz");
    GZIPOutputStream gz = new GZIPOutputStream(fos);
    ObjectOutputStream oos = new ObjectOutputStream(gz);

## GZIP示例 ##

在此示例中，您将创建一个“地址”对象，将其压缩并将其写入文件“ **c：\\\\ address.gz** ”。

*PS Address对象可以参考[本文][Link 1] 。*

package com.mkyong.io;
    
    import java.io.FileOutputStream;
    import java.io.ObjectOutputStream;
    import java.io.Serializable;
    import java.util.zip.GZIPOutputStream;
    
    public class Serializer implements Serializable{
    
       public static void main (String args[]) {
        
    	   Serializer serializer = new Serializer();
    	   serializer.serializeAddress("wall street", "united state");
       }
    
       public void serializeAddress(String street, String country){
    	   
    	   Address address = new Address();
    	   address.setStreet(street);
    	   address.setCountry(country);
    	   
    	   try{
    		   
    		   FileOutputStream fos = new FileOutputStream("c:\\address.gz");
    		   GZIPOutputStream gz = new GZIPOutputStream(fos);
    
    		   ObjectOutputStream oos = new ObjectOutputStream(gz);
    		   
    		   oos.writeObject(address);
    		   oos.close();
    		   
    		   System.out.println("Done");
    		   
    	   }catch(Exception ex){
    		   ex.printStackTrace();
    	   }	 
       }
    }

标记： [gzip][] [java][]

> 翻译自: [https://mkyong.com/java/how-to-compress-serialized-object-into-file/][https_mkyong.com_java_how-to-compress-serialized-object-into-file]

[Link 1]: http://www.mkyong.com/java/how-to-write-an-object-to-file-in-java/
[gzip]: https://mkyong.com/tag/gzip/
[java]: https://mkyong.com/tag/java/
[https_mkyong.com_java_how-to-compress-serialized-object-into-file]: https://mkyong.com/java/how-to-compress-serialized-object-into-file/