针对数据库的编码一向是人们头疼的问题。特别是大型的项目，涉及数据表数目

Coding for databases has always been a headache for people. In particular, large-scale projects involve a large number of data tables and complicated relationships with each other, and even have problems with tables in tables. Coding the database involves writing specific SQL statements. Therefore, the database reaches the modules accordingly, and the coupling of the system is relatively high. If the database changes, the code module needs to make many changes to adapt to the changes in the database, which is not conducive to the database of system development. Hibernate framework formally emerged in response to this demand, the core technology of Hibernate framework is data persistence technology. Data persistence is a mapping technique based on objects and relationships. At present, object-relational mapping technology already has relatively mature tools, such as Hibernate, Caster and so on. The Hibernate framework used in this article allows us to encode the database into a DAO layer that interacts with the Hibernate framework, and the Hibernate framework is responsible for handling database issues. Greatly improve the maintainability of the code and reduce the workload.

针对数据库的编码一向是人们头疼的问题。特别是大型的项目，涉及数据表数目繁多，且互相之间关系复杂，甚至有表中表的问题。对数据库的编码涉及到具体的SQL语句编写。所以数据库相应达到模块之间，系统的耦合性相对较高。若数据库有所变动，则代码模块需要做很多改变来适应数据库的变化，不利于系统开发的据库。Hibernate 框架正式在这种需求下应运而生，Hibernate框架采用的技术核心是数据持久化技术。数据持久化，是一种基于对象与关系之间的映射技术。目前来说，对象关系映射技术已经有了比较成熟的工具了，比如Hibernate，Caster等。本文使用的Hibernate框架，让我们对数据库的编码，变成了DAO层与Hibernate框架交互，而Hibernate框架则负责处理数据库的问题。大大提高了代码的可维护性，减少了工作量。

Coding for database has always been a headache for people. Especially in large-scale projects, there are a large number of data tables involved, and the relationship between them is complex, even the problem of tables in the tables. The coding of database involves the writing of SQL statement. Therefore, the database corresponding to the modules, the system coupling is relatively high. If the database changes, the code module needs to make a lot of changes to adapt to the changes of the database, which is not conducive to the database of system development. Hibernate framework came into being under this kind of demand. The core technology of Hibernate framework is Data Persistence technology. Data persistence is a mapping technology based on object and relation. At present, the object relational mapping technology has a relatively mature tool, such as hibernate, caster and so on. The Hibernate framework used in this paper makes the coding of database become the interaction between Dao layer and Hibernate framework, while the Hibernate framework is responsible for dealing with database problems. It greatly improves the maintainability of the code and reduces the workload.<br>