Three methods for MongoDB to save Java objects

MongoDB has three methods to save java objects. One is to implement the DBObject interface through classes, and the other is to use the object ing function of spring-mongodb tool to convert java objects.

MongoDB has three methods to save java objects. One is to implement the DBObject interface through classes, and the other is to use the object ing function of spring-mongodb tool to convert java objects.

MongoDB has three methods to save java objects. One is to implement the DBObject interface through a class, and the other is to use the object ing function of the spring-mongodb tool, converts a java object to the BSON document of MongoDB. One is to convert the object to binary storage through a serialization instance. MongoDB supports binary data format. The following describes three methods:

1. Implement the DBObject Interface

If this method is used, the class is still a DBObject. The put and get methods are used to access object attributes, which is inconvenient. For details, refer to the example on the official website:

}

Collection. insert (myTweet );

Tweet myTweet = (Tweet) collection. findOne ();

Tweet myTweet = (Tweet) collection. findOne ();

Collection. save (myTweet );

You may have discovered that this method only applies to new classes. It is not suitable for the original classes.

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