import org.apache.ibatis.transaction.TransactionException; //导入依赖的package包/类
protected void setDesiredAutoCommit(boolean desiredAutoCommit) {
  try {
    if (connection.getAutoCommit() != desiredAutoCommit) {
      if (log.isDebugEnabled()) {
        log.debug("Setting autocommit to " + desiredAutoCommit + " on JDBC Connection [" + connection + "]");
      }
      connection.setAutoCommit(desiredAutoCommit);
    }
  } catch (SQLException e) {
    // Only a very poorly implemented driver would fail here,
    // and there's not much we can do about that.
    throw new TransactionException("Error configuring AutoCommit.  "
        + "Your driver may not support getAutoCommit() or setAutoCommit(). "
        + "Requested setting: " + desiredAutoCommit + ".  Cause: " + e, e);
  }
}
 

import org.apache.ibatis.transaction.TransactionException; //导入依赖的package包/类
@Test
public void shouldInstantiateAndThrowAllCustomExceptions() throws Exception {
  Class<?>[] exceptionTypes = {
      BindingException.class,
      CacheException.class,
      DataSourceException.class,
      ExecutorException.class,
      LogException.class,
      ParsingException.class,
      BuilderException.class,
      PluginException.class,
      ReflectionException.class,
      PersistenceException.class,
      SqlSessionException.class,
      TransactionException.class,
      TypeException.class, 
      ScriptingException.class
  };
  for (Class<?> exceptionType : exceptionTypes) {
    testExceptionConstructors(exceptionType);
  }

}
 

import org.apache.ibatis.transaction.TransactionException; //导入依赖的package包/类
protected void setDesiredAutoCommit(boolean desiredAutoCommit) {
  try {
//和原来的比一下，再设置autocommit，是考虑多次重复设置的性能问题？
    if (connection.getAutoCommit() != desiredAutoCommit) {
      if (log.isDebugEnabled()) {
        log.debug("Setting autocommit to " + desiredAutoCommit + " on JDBC Connection [" + connection + "]");
      }
      connection.setAutoCommit(desiredAutoCommit);
    }
  } catch (SQLException e) {
    // Only a very poorly implemented driver would fail here,
    // and there's not much we can do about that.
    throw new TransactionException("Error configuring AutoCommit.  "
        + "Your driver may not support getAutoCommit() or setAutoCommit(). "
        + "Requested setting: " + desiredAutoCommit + ".  Cause: " + e, e);
  }
}