Detailed explanation of MySQL storing Java object instances

MySQL stores Java objects

MySQL sets the field to blob

To save an object, first serialize the object as byte [] and use setobject (byte [] bytes)

Get the object. Use getbytes() to deserialize the obtained byte [] into a Java object

There will be various problems in other online methods. Please use them with caution.

include:

1. Set the URL parameter autodeserialize = true 2 Setobject (Java instance object) query

ObjectInputStream oips = new ObjectInputStream(rs.getBinaryStream(1)); ArrayList < string > OBB = (Java class) oips readObject();// Read object from stream

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