【源码】MyBatis

飞翔在天 / 2023-08-02 / 原文

mybatis-spring

public class SqlSessionFactoryBean implements FactoryBean<SqlSessionFactory>, InitializingBean, ApplicationListener<ApplicationEvent> {

bean初始化

public void afterPropertiesSet() throws Exception {
        Assert.notNull(this.dataSource, "Property 'dataSource' is required");
        Assert.notNull(this.sqlSessionFactoryBuilder, "Property 'sqlSessionFactoryBuilder' is required");
        Assert.state(this.configuration == null && this.configLocation == null || this.configuration == null || this.configLocation == null, "Property 'configuration' and 'configLocation' can not specified with together");
        this.sqlSessionFactory = this.buildSqlSessionFactory();
    }

SqlSessionFactoryBuilder

 SqlSessionFactory build(Reader reader)

DefaultSqlSessionFactory

public class DefaultSqlSessionFactory implements SqlSessionFactory {
　　public SqlSession openSession(boolean autoCommit) {
        return this.openSessionFromDataSource(this.configuration.getDefaultExecutorType(), (TransactionIsolationLevel)null, autoCommit);
    }
    // ..
}

DefaultSqlSession

public class DefaultSqlSession implements SqlSession {
    select
    selectList
    insert
    update  
   // ...
}

spring事件监听

public void onApplicationEvent(ApplicationEvent event) {
    if (this.failFast && event instanceof ContextRefreshedEvent) {
        this.sqlSessionFactory.getConfiguration().getMappedStatementNames();
    }
}