Shulou(Shulou.com)06/01 Report--

1. Main classes

1.1 SqlSessionFactoryBuilder

Used to create a SqlSessionFactory, either through a configuration file or code.

The main method

SqlSessionFactory build (InputStream inputStream) SqlSessionFactory build (InputStream inputStream, String environment) SqlSessionFactory build (InputStream inputStream, Properties properties) SqlSessionFactory build (InputStream inputStream, String env, Properties props) SqlSessionFactory build (Configuration config)

Created exampl

String resource = "org/mybatis/builder/mybatis-config.xml"; InputStream inputStream = Resources.getResourceAsStream (resource); SqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder (); SqlSessionFactory factory = builder.build (inputStream); DataSource dataSource = BaseDataTest.createBlogDataSource (); TransactionFactory transactionFactory = new JdbcTransactionFactory (); Environment environment = new Environment ("development", transactionFactory, dataSource); Configuration configuration = new Configuration (environment); configuration.setLazyLoadingEnabled (true); configuration.setEnhancementEnabled (true); configuration.getTypeAliasRegistry (). RegisterAlias (Blog.class); configuration.getTypeAliasRegistry (). RegisterAlias (Post.class) Configuration.getTypeAliasRegistry (). RegisterAlias (Author.class); configuration.addMapper (BoundBlogMapper.class); configuration.addMapper (BoundAuthorMapper.class); SqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder (); SqlSessionFactory factory = builder.build (configuration)

1.2 SqlSessionFactory

Used to create SqlSession

Main methods

SqlSession openSession () SqlSession openSession (boolean autoCommit) SqlSession openSession (Connection connection) SqlSession openSession (TransactionIsolationLevel level) SqlSession openSession (ExecutorType execType,TransactionIsolationLevel level) SqlSession openSession (ExecutorType execType) SqlSession openSession (ExecutorType execType, boolean autoCommit) SqlSession openSession (ExecutorType execType, Connection connection) Configuration getConfiguration

1.3 SqlSession

Persistent layer operation session

Common methods

T selectOne (String statement) List selectList (String statement) Map selectMap (String statement, String mapKey) int insert (String statement) int update (String statement) int delete (String statement)

Transaction operation method

Void commit () void commit (boolean force) void rollback () void rollback (boolean force)

2. Configuration file

Note:

Configuration file elements and JAVA manipulation methods can correspond to each other; configuration file elements can be independent, such as property files and annotations.

For details, refer to the official website address: http://www.mybatis.org/mybatis-3/zh/configuration.html#environments

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