ConnectionHandler

方法
限定符和类型	方法和说明
`void`	`begin(ConnectionHolder connectionHolder)`
`void`	`close(ConnectionHolder connectionHolder)`
`void`	`commit(ConnectionHolder connectionHolder)`
`void`	`rollback(ConnectionHolder connectionHolder)`

void begin(ConnectionHolder connectionHolder)

void commit(ConnectionHolder connectionHolder)

void rollback(ConnectionHolder connectionHolder)

void close(ConnectionHolder connectionHolder)

接口 ConnectionHandler