diff --git a/GoMybatisDataSourceRouter.go b/GoMybatisDataSourceRouter.go
index 7584905..65b933c 100644
--- a/GoMybatisDataSourceRouter.go
+++ b/GoMybatisDataSourceRouter.go
@@ -8,7 +8,7 @@ import (
 //动态数据源路由
 type GoMybatisDataSourceRouter struct {
 	driverLinkDBMap  map[string]*sql.DB // map[driverLink]*DB
-	driverTypeUrlMap map[string]string  // map[driverType]Url
+	driverLinkUrlMap map[string]string  // map[driverLink]Url
 	routerFunc       func(mapperName string) *string
 }
 
@@ -20,14 +20,14 @@ func (it GoMybatisDataSourceRouter) New(routerFunc func(mapperName string) *stri
 		}
 	}
 	it.driverLinkDBMap = make(map[string]*sql.DB)
-	it.driverTypeUrlMap = make(map[string]string)
+	it.driverLinkUrlMap = make(map[string]string)
 	it.routerFunc = routerFunc
 	return it
 }
 
 func (it *GoMybatisDataSourceRouter) SetDB(driverType string, driverLink string, db *sql.DB) {
 	it.driverLinkDBMap[driverLink] = db
-	it.driverTypeUrlMap[driverLink] = driverType
+	it.driverLinkUrlMap[driverLink] = driverType
 }
 
 func (it *GoMybatisDataSourceRouter) Router(mapperName string, engine SessionEngine) (Session, error) {
@@ -52,11 +52,11 @@ func (it *GoMybatisDataSourceRouter) Router(mapperName string, engine SessionEng
 	if db == nil {
 		return nil, utils.NewError("GoMybatisDataSourceRouter", "router not find datasource opened ! do you forget invoke GoMybatis.GoMybatisEngine{}.New().Open(\"driverName\", Uri)?")
 	}
-	var url = ""
+	var driverLink = ""
 	if key != nil {
-		url = *key
+		driverLink = *key
 	}
-	var local = LocalSession{}.New(it.driverTypeUrlMap[url], url, db, engine.Log())
+	var local = LocalSession{}.New(it.driverLinkUrlMap[driverLink], driverLink, db, engine.Log())
 	var session = Session(&local)
 	return session, nil
 }
diff --git a/LocalSession.go b/LocalSession.go
index bc0ce69..fdff6b0 100644
--- a/LocalSession.go
+++ b/LocalSession.go
@@ -12,8 +12,8 @@ import (
 //本地直连session
 type LocalSession struct {
 	SessionId       string
-	driver          string
-	url             string
+	driverType      string
+	driverLink      string
 	db              *sql.DB
 	stmt            *sql.Stmt
 	txStack         tx.TxStack
@@ -24,14 +24,14 @@ type LocalSession struct {
 	logSystem Log
 }
 
-func (it LocalSession) New(driver string, url string, db *sql.DB, logSystem Log) LocalSession {
+func (it LocalSession) New(driverType string, driverLink string, db *sql.DB, logSystem Log) LocalSession {
 	return LocalSession{
-		SessionId: utils.CreateUUID(),
-		db:        db,
-		txStack:   tx.TxStack{}.New(),
-		driver:    driver,
-		url:       url,
-		logSystem: logSystem,
+		SessionId:  utils.CreateUUID(),
+		db:         db,
+		txStack:    tx.TxStack{}.New(),
+		driverType: driverType,
+		driverLink: driverLink,
+		logSystem:  logSystem,
 	}
 }
 
@@ -189,11 +189,11 @@ func (it *LocalSession) Begin(p *tx.Propagation) error {
 			//stop old tx
 			//}
 			//new session(tx)
-			var db, e = sql.Open(it.driver, it.url)
+			var db, e = sql.Open(it.driverType, it.driverLink)
 			if e != nil {
 				return e
 			}
-			var sess = LocalSession{}.New(it.driver, it.url, db, it.logSystem) //same PROPAGATION_REQUIRES_NEW
+			var sess = LocalSession{}.New(it.driverType, it.driverLink, db, it.logSystem) //same PROPAGATION_REQUIRES_NEW
 			it.newLocalSession = &sess
 			break
 		case tx.PROPAGATION_NOT_SUPPORTED:
@@ -201,11 +201,11 @@ func (it *LocalSession) Begin(p *tx.Propagation) error {
 			//stop old tx
 			//}
 			//new session( no tx)
-			var db, e = sql.Open(it.driver, it.url)
+			var db, e = sql.Open(it.driverType, it.driverLink)
 			if e != nil {
 				return e
 			}
-			var sess = LocalSession{}.New(it.driver, it.url, db, it.logSystem)
+			var sess = LocalSession{}.New(it.driverType, it.driverLink, db, it.logSystem)
 			it.newLocalSession = &sess
 			break
 		case tx.PROPAGATION_NEVER: //END
@@ -433,7 +433,7 @@ func (it *LocalSession) ExecPrepare(sqlPrepare string, args ...interface{}) (*Re
 }
 
 func (it *LocalSession) StmtConvert() (stmt.StmtIndexConvert, error) {
-	return stmt.BuildStmtConvert(it.driver)
+	return stmt.BuildStmtConvert(it.driverType)
 }
 
 func (it *LocalSession) dbErrorPack(e error) error {