intercept
Plugin
wrapinvoke
ResultSetHandler
sqlsession
ExamplePlugin(自定义)
pluginintercept
interceptorChain
pluginAll
handleResultSets
DefaultObjectFactory
SqlSessionFactory
newStatementHandler
prepare
wrap
MapperRegistry
getMapper（）；addMapper（）；
Executor
handleResultSet;handleRowValues
invoke
plugin
query
MapperProxyFactory
getConnection();
PreparedStatement
openSession
configuration
StatementHandler
getMapper
MapperProxy
