sqlSessionFactory.openSession()
时间: 2023-11-13 10:54:32 浏览: 26
sqlSessionFactory.openSession() 是 MyBatis 中用于创建 SqlSession 对象的方法。SqlSession 是 MyBatis 中用于执行 SQL 语句并返回结果的核心对象。通过 SqlSession,我们可以执行增删改查等操作,也可以获取 Mapper 接口的实现类对象。
在 MyBatis 中,SqlSession 的生命周期非常重要。通常情况下,我们会在方法内部创建 SqlSession 对象,并在方法结束时关闭它。如果不关闭 SqlSession,会导致连接池资源无法释放,最终导致系统崩溃。
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SqlSessionFactory.openSession
SqlSessionFactory.openSession is a method used to create a new session object. A session is a connection between the application and the database that allows the application to execute SQL statements and retrieve the results.
The SqlSessionFactory is a class in MyBatis, a popular Java-based ORM (object-relational mapping) framework. It is responsible for creating sessions and managing the lifecycle of the sessions.
The openSession() method returns a new session object that can be used to interact with the database. The session object provides methods for executing SQL statements, committing or rolling back transactions, and closing the session.
Here is an example of using the openSession() method to create a new session object:
```
SqlSessionFactory sessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
SqlSession session = sessionFactory.openSession();
```
In this example, the SqlSessionFactoryBuilder is used to build a SqlSessionFactory object from an input stream. The openSession() method is then called on the sessionFactory object to create a new session object. This session object can then be used to interact with the database.
sqlSessionFactory.openSession
在使用Mybatis操作数据库时,需要通过`sqlSessionFactory.openSession()`方法来获取`SqlSession`对象。这个方法会返回一个新的`SqlSession`实例,用于执行数据库操作。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* [SqlSessionFactory与SqlSession对象介绍](https://blog.csdn.net/kidchildcsdn/article/details/114132536)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
- *2* *3* [SqlSessionFactory 的openSession方法](https://blog.csdn.net/qq_35854462/article/details/74004441)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
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