Jan 13, 2016 Serialization is a mechanism of converting the state of an object into a byte stream. Deserialization is the reverse process where the byte stream is used to recreate the actual Java. This tutorial provides the explanation on serialization in Java with the example. It provides the complete tutorial on Serialization in java and also covers all Java serialization interview questions and answers. Java - Serialization Java provides a mechanism, called object serialization where an object can be represented as a sequence of bytes that includes the object's data as well as information about the object's type and the types of data stored in the object. Jul 11, 2018 So far, no JDK Enhancement Proposal (JEP) has been proposed publicly to deprecate the serialization mechanism in Java 11, which is expected to be released later this year. Therefore, it.
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What is the Java analogue of .NET's XML serialization?
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Dmitry ShechtmanDmitry Shechtman
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closed as off-topic by Samuel Liew♦Sep 27 '18 at 9:51
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11 Answers
2008 AnswerThe 'Official' Java API for this is now JAXB - Java API for XML Binding. See Tutorial by Oracle. The reference implementation lives at http://jaxb.java.net/
2018 Update Note that the Java EE and CORBA Modules are deprecated in SE in JDK9 and to be removed from SE in JDK11. Therefore, to use JAXB it will either need to be in your existing enterprise class environment bundled by your e.g. app server, or you will need to bring it in manually.
CheekysoftCheekysoft
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XStream is pretty good at serializing object to XML without much configuration and money! (it's under BSD license).
We used it in one of our project to replace the plain old java-serialization and it worked almost out of the box.
Boern
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Barak SchillerBarak Schiller
You may want to look at the Simple XML Serialization project. It is the closest thing I've found to the System.Xml.Serialization in .Net.
Basil Bourque
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ARKBANARKBAN
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JAXB is part of JDK standard edition version 1.6+. So it is
FREE and no extra libraries to download and manage.A simple example can be found here
XStream seems to be dead. Last update was on Dec 6 2008. so_mvso_mv
Simple seems as easy and simpler as JAXB but I could not find any licensing information to evaluate it for enterprise use.
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Worth mentioning that since version 1.4, Java had the classes java.beans.XMLEncoder and java.beans.XMLDecoder. These classes perform XML encoding which is at least very comparable to XML Serialization and in some circumstances might do the trick for you.
If your class sticks to the JavaBeans specification for its getters and setters, this method is straightforward to use and you don't need a schema. With the following caveats:
For example, take the following declaration:
Executing this code:
Would result in the following file:
MishaxMishax
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XMLBeans works great if you have a schema for your XML. It creates Java objects for the schema and creates easy to use parse methods.
John MeagherJohn Meagher
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If you're talking about automatic XML serialization of objects, check out Castor:
Castor is an Open Source data binding framework for Java[tm]. It's the shortest path between Java objects, XML documents and relational tables. Castor provides Java-to-XML binding, Java-to-SQL persistence, and more.
TheoTheo
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Usually I use jaxb or XMLBeans if I need to create objects serializable to XML. Now, I can see that XStream might be very useful as it's nonintrusive and has really simple api. I'll play with it soon and probably use it. The only drawback I noticed is that I can't create object's id on my own for cross referencing.
@Barak Schiller Bartosz BierkowskiBartosz Bierkowski
Thanks for posting link to XStream!
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CheesoCheeso
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if you want a structured solution (like ORM) then JAXB2 is a good solution.
If you want a serialization like DOT NET then you could use Long Term Persistence of JavaBeans Components
The choice depends on use of serialization.
Andrew Thompson
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Java provides a mechanism, called object serialization where an object can be represented as a sequence of bytes that includes the object's data as well as information about the object's type and the types of data stored in the object.
After a serialized object has been written into a file, it can be read from the file and deserialized that is, the type information and bytes that represent the object and its data can be used to recreate the object in memory.
Most impressive is that the entire process is JVM independent, meaning an object can be serialized on one platform and deserialized on an entirely different platform.
Classes ObjectInputStream and ObjectOutputStream are high-level streams that contain the methods for serializing and deserializing an object.
The ObjectOutputStream class contains many write methods for writing various data types, but one method in particular stands out −
Java 11 Serialization Key
The above method serializes an Object and sends it to the output stream. Similarly, the ObjectInputStream class contains the following method for deserializing an object −
Java 11 Serialization
This method retrieves the next Object out of the stream and deserializes it. The return value is Object, so you will need to cast it to its appropriate data type.
To demonstrate how serialization works in Java, I am going to use the Employee class that we discussed early on in the book. Suppose that we have the following Employee class, which implements the Serializable interface −
Example
Notice that for a class to be serialized successfully, two conditions must be met −
If you are curious to know if a Java Standard Class is serializable or not, check the documentation for the class. The test is simple: If the class implements java.io.Serializable, then it is serializable; otherwise, it's not.
Serializing an Object
The ObjectOutputStream class is used to serialize an Object. The following SerializeDemo program instantiates an Employee object and serializes it to a file.
When the program is done executing, a file named employee.ser is created. The program does not generate any output, but study the code and try to determine what the program is doing.
Note − When serializing an object to a file, the standard convention in Java is to give the file a .ser extension.
ExampleDeserializing an Object
The following DeserializeDemo program deserializes the Employee object created in the SerializeDemo program. Study the program and try to determine its output −
Java Serialization PerformanceExample
This will produce the following result −
Output
Here are following important points to be noted −
Java 11 Serialization Download![]() Serialization Java Example
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