Java – stores serializable objects in the database

I'm writing an application that needs to write objects to the database

For simplicity, I want to serialize objects

But the objectouputstream required for the same purpose has only one constructor, which takes any subclass of OutputStream as a parameter

What parameters should be passed?

Solution

You can pass bytearrayoutputstream, and then the generated stream Tobytearray () is stored in the database as a blob

Make sure to specify serialVersionUID for the class, otherwise you will encounter difficulties in adding / removing fields

If you need more human readable data, consider the XML version of object serialization - xmlencoder. XML

Finally, you may want to transform the object model into a relational model through the ORM framework JPA (hibernate / eclipse link / openjpa) provides object relational mapping so that you can use objects, but their fields and relationships will remain in the RDBMS