问题
I have a variable in java which return type is Object(java.lang.Object). I want to store this variable value in MySQL database without casting in any other primitive data type. Is there any data type available in MySQL related to Object?
回答1:
You can use a BLOB to store the raw data, but otherwise no, MySQL does not have a datatype specifically for a java object.
As a side note: You probably shouldn't be storing a raw object into the database, that kind of prevents you from doing any sort of queries on it.
回答2:
You must serialize the Object anyway, so you could serialize to XML or JSON aswell. A human readable storage form is what I would prefer. Have a look at Xstream for example. A great, threadsafe tool for marshalling/unmarshalling.
I assume of course, that your Object is a Bean/POJO.
回答3:
BLOB could do it. Serialize the object into a byte array and INSERT that as a BLOB.
来源：https://stackoverflow.com/questions/2747203/want-to-store-object-in-mysql-database