diff --git a/cache/memcache/memcache.go b/cache/memcache/memcache.go
index 365c5de7..130405c4 100644
--- a/cache/memcache/memcache.go
+++ b/cache/memcache/memcache.go
@@ -5,6 +5,8 @@ import (
 	"errors"
 
 	"github.com/beego/memcache"
+
+	"github.com/astaxie/beego/cache"
 )
 
 // Memcache adapter.
@@ -147,5 +149,5 @@ func (rc *MemcacheCache) connectInit() (*memcache.Connection, error) {
 }
 
 func init() {
-	Register("memcache", NewMemCache())
+	cache.Register("memcache", NewMemCache())
 }
diff --git a/cache/redis/redis.go b/cache/redis/redis.go
index ba1d4d49..71c7d67e 100644
--- a/cache/redis/redis.go
+++ b/cache/redis/redis.go
@@ -6,6 +6,8 @@ import (
 	"time"
 
 	"github.com/beego/redigo/redis"
+
+	"github.com/astaxie/beego/cache"
 )
 
 var (
@@ -130,5 +132,5 @@ func (rc *RedisCache) connectInit() {
 }
 
 func init() {
-	Register("redis", NewRedisCache())
+	cache.Register("redis", NewRedisCache())
 }
diff --git a/session/couchbase/sess_couchbase.go b/session/couchbase/sess_couchbase.go
index 74b2242c..29661b1a 100644
--- a/session/couchbase/sess_couchbase.go
+++ b/session/couchbase/sess_couchbase.go
@@ -1,10 +1,13 @@
 package session
 
 import (
-	"github.com/couchbaselabs/go-couchbase"
 	"net/http"
 	"strings"
 	"sync"
+
+	"github.com/couchbaselabs/go-couchbase"
+
+	"github.com/astaxie/beego/session"
 )
 
 var couchbpder = &CouchbaseProvider{}
@@ -70,7 +73,7 @@ func (cs *CouchbaseSessionStore) SessionRelease(w http.ResponseWriter) {
 		return
 	}
 
-	bo, err := encodeGob(cs.values)
+	bo, err := session.EncodeGob(cs.values)
 	if err != nil {
 		return
 	}
@@ -117,7 +120,7 @@ func (cp *CouchbaseProvider) SessionInit(maxlifetime int64, savePath string) err
 }
 
 // read couchbase session by sid
-func (cp *CouchbaseProvider) SessionRead(sid string) (SessionStore, error) {
+func (cp *CouchbaseProvider) SessionRead(sid string) (session.SessionStore, error) {
 	cp.b = cp.getBucket()
 
 	var doc []byte
@@ -127,7 +130,7 @@ func (cp *CouchbaseProvider) SessionRead(sid string) (SessionStore, error) {
 	if doc == nil {
 		kv = make(map[interface{}]interface{})
 	} else {
-		kv, err = decodeGob(doc)
+		kv, err = session.DecodeGob(doc)
 		if err != nil {
 			return nil, err
 		}
@@ -150,7 +153,7 @@ func (cp *CouchbaseProvider) SessionExist(sid string) bool {
 	}
 }
 
-func (cp *CouchbaseProvider) SessionRegenerate(oldsid, sid string) (SessionStore, error) {
+func (cp *CouchbaseProvider) SessionRegenerate(oldsid, sid string) (session.SessionStore, error) {
 	cp.b = cp.getBucket()
 
 	var doc []byte
@@ -172,7 +175,7 @@ func (cp *CouchbaseProvider) SessionRegenerate(oldsid, sid string) (SessionStore
 	if doc == nil {
 		kv = make(map[interface{}]interface{})
 	} else {
-		kv, err = decodeGob(doc)
+		kv, err = session.DecodeGob(doc)
 		if err != nil {
 			return nil, err
 		}
@@ -199,5 +202,5 @@ func (cp *CouchbaseProvider) SessionAll() int {
 }
 
 func init() {
-	Register("couchbase", couchbpder)
+	session.Register("couchbase", couchbpder)
 }
diff --git a/session/mysql/sess_mysql.go b/session/mysql/sess_mysql.go
index b471c6c0..2e88aec3 100644
--- a/session/mysql/sess_mysql.go
+++ b/session/mysql/sess_mysql.go
@@ -14,6 +14,8 @@ import (
 	"sync"
 	"time"
 
+	"github.com/astaxie/beego/session"
+
 	_ "github.com/go-sql-driver/mysql"
 )
 
@@ -73,7 +75,7 @@ func (st *MysqlSessionStore) SessionID() string {
 // must call this method to save values to database.
 func (st *MysqlSessionStore) SessionRelease(w http.ResponseWriter) {
 	defer st.c.Close()
-	b, err := encodeGob(st.values)
+	b, err := session.EncodeGob(st.values)
 	if err != nil {
 		return
 	}
@@ -106,7 +108,7 @@ func (mp *MysqlProvider) SessionInit(maxlifetime int64, savePath string) error {
 }
 
 // get mysql session by sid
-func (mp *MysqlProvider) SessionRead(sid string) (SessionStore, error) {
+func (mp *MysqlProvider) SessionRead(sid string) (session.SessionStore, error) {
 	c := mp.connectInit()
 	row := c.QueryRow("select session_data from session where session_key=?", sid)
 	var sessiondata []byte
@@ -119,7 +121,7 @@ func (mp *MysqlProvider) SessionRead(sid string) (SessionStore, error) {
 	if len(sessiondata) == 0 {
 		kv = make(map[interface{}]interface{})
 	} else {
-		kv, err = decodeGob(sessiondata)
+		kv, err = session.DecodeGob(sessiondata)
 		if err != nil {
 			return nil, err
 		}
@@ -143,7 +145,7 @@ func (mp *MysqlProvider) SessionExist(sid string) bool {
 }
 
 // generate new sid for mysql session
-func (mp *MysqlProvider) SessionRegenerate(oldsid, sid string) (SessionStore, error) {
+func (mp *MysqlProvider) SessionRegenerate(oldsid, sid string) (session.SessionStore, error) {
 	c := mp.connectInit()
 	row := c.QueryRow("select session_data from session where session_key=?", oldsid)
 	var sessiondata []byte
@@ -156,7 +158,7 @@ func (mp *MysqlProvider) SessionRegenerate(oldsid, sid string) (SessionStore, er
 	if len(sessiondata) == 0 {
 		kv = make(map[interface{}]interface{})
 	} else {
-		kv, err = decodeGob(sessiondata)
+		kv, err = session.DecodeGob(sessiondata)
 		if err != nil {
 			return nil, err
 		}
@@ -194,5 +196,5 @@ func (mp *MysqlProvider) SessionAll() int {
 }
 
 func init() {
-	Register("mysql", mysqlpder)
+	session.Register("mysql", mysqlpder)
 }
diff --git a/session/postgres/sess_postgresql.go b/session/postgres/sess_postgresql.go
index 585a864d..2838a80d 100644
--- a/session/postgres/sess_postgresql.go
+++ b/session/postgres/sess_postgresql.go
@@ -34,6 +34,9 @@ import (
 	"net/http"
 	"sync"
 	"time"
+
+	"github.com/astaxie/beego/session"
+
 	_ "github.com/lib/pq"
 )
 
@@ -93,7 +96,7 @@ func (st *PostgresqlSessionStore) SessionID() string {
 // must call this method to save values to database.
 func (st *PostgresqlSessionStore) SessionRelease(w http.ResponseWriter) {
 	defer st.c.Close()
-	b, err := encodeGob(st.values)
+	b, err := session.EncodeGob(st.values)
 	if err != nil {
 		return
 	}
@@ -126,7 +129,7 @@ func (mp *PostgresqlProvider) SessionInit(maxlifetime int64, savePath string) er
 }
 
 // get postgresql session by sid
-func (mp *PostgresqlProvider) SessionRead(sid string) (SessionStore, error) {
+func (mp *PostgresqlProvider) SessionRead(sid string) (session.SessionStore, error) {
 	c := mp.connectInit()
 	row := c.QueryRow("select session_data from session where session_key=$1", sid)
 	var sessiondata []byte
@@ -138,7 +141,7 @@ func (mp *PostgresqlProvider) SessionRead(sid string) (SessionStore, error) {
 		if err != nil {
 			return nil, err
 		}
-	} else  if err != nil {
+	} else if err != nil {
 		return nil, err
 	}
 
@@ -146,7 +149,7 @@ func (mp *PostgresqlProvider) SessionRead(sid string) (SessionStore, error) {
 	if len(sessiondata) == 0 {
 		kv = make(map[interface{}]interface{})
 	} else {
-		kv, err = decodeGob(sessiondata)
+		kv, err = session.DecodeGob(sessiondata)
 		if err != nil {
 			return nil, err
 		}
@@ -162,7 +165,7 @@ func (mp *PostgresqlProvider) SessionExist(sid string) bool {
 	row := c.QueryRow("select session_data from session where session_key=$1", sid)
 	var sessiondata []byte
 	err := row.Scan(&sessiondata)
-		
+
 	if err == sql.ErrNoRows {
 		return false
 	} else {
@@ -171,21 +174,21 @@ func (mp *PostgresqlProvider) SessionExist(sid string) bool {
 }
 
 // generate new sid for postgresql session
-func (mp *PostgresqlProvider) SessionRegenerate(oldsid, sid string) (SessionStore, error) {
+func (mp *PostgresqlProvider) SessionRegenerate(oldsid, sid string) (session.SessionStore, error) {
 	c := mp.connectInit()
 	row := c.QueryRow("select session_data from session where session_key=$1", oldsid)
 	var sessiondata []byte
 	err := row.Scan(&sessiondata)
 	if err == sql.ErrNoRows {
 		c.Exec("insert into session(session_key,session_data,session_expiry) values($1,$2,$3)",
-		oldsid, "", time.Now().Format(time.RFC3339))
+			oldsid, "", time.Now().Format(time.RFC3339))
 	}
 	c.Exec("update session set session_key=$1 where session_key=$2", sid, oldsid)
 	var kv map[interface{}]interface{}
 	if len(sessiondata) == 0 {
 		kv = make(map[interface{}]interface{})
 	} else {
-		kv, err = decodeGob(sessiondata)
+		kv, err = session.DecodeGob(sessiondata)
 		if err != nil {
 			return nil, err
 		}
@@ -223,5 +226,5 @@ func (mp *PostgresqlProvider) SessionAll() int {
 }
 
 func init() {
-	Register("postgresql", postgresqlpder)
+	session.Register("postgresql", postgresqlpder)
 }
diff --git a/session/redis/sess_redis.go b/session/redis/sess_redis.go
index e64d4c90..00ef4a63 100644
--- a/session/redis/sess_redis.go
+++ b/session/redis/sess_redis.go
@@ -6,6 +6,8 @@ import (
 	"strings"
 	"sync"
 
+	"github.com/astaxie/beego/session"
+
 	"github.com/beego/redigo/redis"
 )
 
@@ -77,7 +79,7 @@ func (rs *RedisSessionStore) SessionRelease(w http.ResponseWriter) {
 		return
 	}
 
-	b, err := encodeGob(rs.values)
+	b, err := session.EncodeGob(rs.values)
 	if err != nil {
 		return
 	}
@@ -134,7 +136,7 @@ func (rp *RedisProvider) SessionInit(maxlifetime int64, savePath string) error {
 }
 
 // read redis session by sid
-func (rp *RedisProvider) SessionRead(sid string) (SessionStore, error) {
+func (rp *RedisProvider) SessionRead(sid string) (session.SessionStore, error) {
 	c := rp.poollist.Get()
 	defer c.Close()
 
@@ -143,7 +145,7 @@ func (rp *RedisProvider) SessionRead(sid string) (SessionStore, error) {
 	if len(kvs) == 0 {
 		kv = make(map[interface{}]interface{})
 	} else {
-		kv, err = decodeGob([]byte(kvs))
+		kv, err = session.DecodeGob([]byte(kvs))
 		if err != nil {
 			return nil, err
 		}
@@ -166,7 +168,7 @@ func (rp *RedisProvider) SessionExist(sid string) bool {
 }
 
 // generate new sid for redis session
-func (rp *RedisProvider) SessionRegenerate(oldsid, sid string) (SessionStore, error) {
+func (rp *RedisProvider) SessionRegenerate(oldsid, sid string) (session.SessionStore, error) {
 	c := rp.poollist.Get()
 	defer c.Close()
 
@@ -185,7 +187,7 @@ func (rp *RedisProvider) SessionRegenerate(oldsid, sid string) (SessionStore, er
 	if len(kvs) == 0 {
 		kv = make(map[interface{}]interface{})
 	} else {
-		kv, err = decodeGob([]byte(kvs))
+		kv, err = session.DecodeGob([]byte(kvs))
 		if err != nil {
 			return nil, err
 		}
@@ -215,5 +217,5 @@ func (rp *RedisProvider) SessionAll() int {
 }
 
 func init() {
-	Register("redis", redispder)
+	session.Register("redis", redispder)
 }
diff --git a/session/sess_file.go b/session/sess_file.go
index 7e9e2229..6ac22b24 100644
--- a/session/sess_file.go
+++ b/session/sess_file.go
@@ -70,7 +70,7 @@ func (fs *FileSessionStore) SessionID() string {
 // Write file session to local file with Gob string
 func (fs *FileSessionStore) SessionRelease(w http.ResponseWriter) {
 	defer fs.f.Close()
-	b, err := encodeGob(fs.values)
+	b, err := EncodeGob(fs.values)
 	if err != nil {
 		return
 	}
@@ -123,7 +123,7 @@ func (fp *FileProvider) SessionRead(sid string) (SessionStore, error) {
 	if len(b) == 0 {
 		kv = make(map[interface{}]interface{})
 	} else {
-		kv, err = decodeGob(b)
+		kv, err = DecodeGob(b)
 		if err != nil {
 			return nil, err
 		}
@@ -222,7 +222,7 @@ func (fp *FileProvider) SessionRegenerate(oldsid, sid string) (SessionStore, err
 	if len(b) == 0 {
 		kv = make(map[interface{}]interface{})
 	} else {
-		kv, err = decodeGob(b)
+		kv, err = DecodeGob(b)
 		if err != nil {
 			return nil, err
 		}
diff --git a/session/sess_utils.go b/session/sess_utils.go
index 73f96630..bea19dba 100644
--- a/session/sess_utils.go
+++ b/session/sess_utils.go
@@ -27,7 +27,7 @@ func init() {
 	gob.Register(map[int]int64{})
 }
 
-func encodeGob(obj map[interface{}]interface{}) ([]byte, error) {
+func EncodeGob(obj map[interface{}]interface{}) ([]byte, error) {
 	buf := bytes.NewBuffer(nil)
 	enc := gob.NewEncoder(buf)
 	err := enc.Encode(obj)
@@ -37,7 +37,7 @@ func encodeGob(obj map[interface{}]interface{}) ([]byte, error) {
 	return buf.Bytes(), nil
 }
 
-func decodeGob(encoded []byte) (map[interface{}]interface{}, error) {
+func DecodeGob(encoded []byte) (map[interface{}]interface{}, error) {
 	buf := bytes.NewBuffer(encoded)
 	dec := gob.NewDecoder(buf)
 	var out map[interface{}]interface{}
@@ -97,8 +97,8 @@ func decrypt(block cipher.Block, value []byte) ([]byte, error) {
 func encodeCookie(block cipher.Block, hashKey, name string, value map[interface{}]interface{}) (string, error) {
 	var err error
 	var b []byte
-	// 1. encodeGob.
-	if b, err = encodeGob(value); err != nil {
+	// 1. EncodeGob.
+	if b, err = EncodeGob(value); err != nil {
 		return "", err
 	}
 	// 2. Encrypt (optional).
@@ -158,8 +158,8 @@ func decodeCookie(block cipher.Block, hashKey, name, value string, gcmaxlifetime
 	if b, err = decrypt(block, b); err != nil {
 		return nil, err
 	}
-	// 5. decodeGob.
-	if dst, err := decodeGob(b); err != nil {
+	// 5. DecodeGob.
+	if dst, err := DecodeGob(b); err != nil {
 		return nil, err
 	} else {
 		return dst, nil