MyBatis源码分析_获取openSession 方法

SqlSession openSession = sqlSessionFactory.openSession();

 

 

 

根据配置文件创建不同的  Executor  默认为 

public Executor newExecutor(Transaction transaction, ExecutorType executorType) {
executorType = executorType == null ? defaultExecutorType : executorType;
executorType = executorType == null ? ExecutorType.SIMPLE : executorType;
Executor executor;
if (ExecutorType.BATCH == executorType) {
  executor = new BatchExecutor(this, transaction);
} else if (ExecutorType.REUSE == executorType) {
  executor = new ReuseExecutor(this, transaction);
} else {
  executor = new SimpleExecutor(this, transaction);
}
if (cacheEnabled) {
  executor = new CachingExecutor(executor);
}
executor = (Executor) interceptorChain.pluginAll(executor);
return executor;
}

 

 

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返回SqlSession的实现类DefaultSqlSession对象，他里面包含了Executor和Configuration，Executor会在这一步被创建