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Editor to share with you how to optimize the performance of Hibernate, I hope you will gain something after reading this article, let's discuss it together!

When optimizing Hibernate performance, you need to consider the following aspects:

Database design adjustment.

HQL optimization.

The correct use of API (such as selecting different collections and querying API according to different business types).

Main configuration parameters (log, query cache, fetch_size, batch_size, etc.).

Mapping file optimization (ID generation strategy, second-level cache, deferred loading, association optimization).

Management of first-level cache.

There are also many unique strategies for secondary caching.

Transaction control strategy.

The query performance of data is often the main factor affecting the performance of an application system. The impact on query performance will be related to all stages of system software development, for example, good design, correct query methods, appropriate caching are conducive to the improvement of system performance.

The improvement of system performance to all aspects of the system is a balanced process, which needs to be considered in all stages of application. And in the process of development and operation, we should constantly adjust and optimize in order to gradually improve the performance of the system.

Considerations in the design phase

A good database structure is beneficial to the improvement of system performance. The well-structured database mentioned here does not simply refer to the database structure that meets the database design paradigm. This is because the database designed according to the database paradigm can only be said to be structurally *, without redundant data and other problems, but it may not be able to achieve * * performance in the production process. Sometimes increasing the redundancy of some data appropriately increases the difficulty of data maintenance, but it can greatly simplify the business query and improve the efficiency of data retrieval.

Another problem when using Java to access databases is the contradiction between the object-oriented Java language and relational databases. There must be a problem of mutual transformation between the two, and whether this problem can be handled correctly is also an important factor affecting the performance of the system.

Considering the above problems, the following three factors should be taken into account in the database design stage.

Java modeling

When establishing the Java object model, we should consider the convenience of database persistence. The established Java object model should be easily stored by data, and the structure of the tables in the database should be as simple as possible.

Database structure

When designing the database structure, you should also consider whether it can be easily represented by Java objects. Here is not a simple table corresponding to a direct transformation of an object, more importantly, the transformed Java object should be able to describe the relationship between the data.

Therefore, in the design stage, Java objects and database structure should be considered comprehensively, that is, they can be considered from two directions. after all, the two are not the product of the same era, and the result of the design should achieve a balance between the two. Although each side cannot achieve *, nor can it cause a poor structure of one side. Like a bucket of water, the shortest board determines the capacity of the bucket.

Business requirements

The first two factors are purely technical considerations, in the design process, it is more important to pay close attention to business requirements. This is because any software system is business-centered, so the design of the system is no exception. In the design stage, we should consider the convenience of business implementation and the efficiency of implementation. A good structural design not only makes the implementation of business functions very easy and can avoid a lot of complex operations, but also can achieve the purpose of improving system performance.

The design phase is the foundation of the whole application system development, and its influence on the software is second only to the grasp of the system requirements. Therefore, in the design stage, there should be an overall consideration of the whole software system, the specific design mentioned here is only a small part of the design stage, comprehensive consideration of many factors in order to achieve better performance.

After reading this article, I believe you have a certain understanding of "how to optimize the performance of Hibernate". If you want to know more about it, you are welcome to follow the industry information channel. Thank you for reading!

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