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98 lines
2.7 KiB
Markdown
98 lines
2.7 KiB
Markdown
sessionmanager
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==============
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sessionmanager is a golang session manager. It can use session for many providers.Just like the `database/sql` and `database/sql/driver`.
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##How to install
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go get github.com/astaxie/beego/session
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##how many providers support
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Now this sessionmanager support memory/file/redis/mysql
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##How do we use it?
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first you must import it
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import (
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"github.com/astaxie/beego/session"
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)
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then in you web app init the globalsession manager
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var globalSessions *session.Manager
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use memory as providers:
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func init() {
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globalSessions, _ = session.NewManager("memory", "gosessionid", 3600,"")
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go globalSessions.GC()
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}
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use mysql as providers,the last param is the DNS, learn more from [mysql](https://github.com/Go-SQL-Driver/MySQL#dsn-data-source-name):
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func init() {
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globalSessions, _ = session.NewManager("mysql", "gosessionid", 3600,"username:password@protocol(address)/dbname?param=value")
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go globalSessions.GC()
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}
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use file as providers,the last param is the path where to store the file:
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func init() {
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globalSessions, _ = session.NewManager("file", "gosessionid", 3600,"./tmp")
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go globalSessions.GC()
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}
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use redis as providers,the last param is the redis's conn address:
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func init() {
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globalSessions, _ = session.NewManager("redis", "gosessionid", 3600,"127.0.0.1:6379")
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go globalSessions.GC()
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}
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at last in the handlerfunc you can use it like this
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func login(w http.ResponseWriter, r *http.Request) {
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sess := globalSessions.SessionStart(w, r)
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defer sess.SessionRelease()
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username := sess.Get("username")
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fmt.Println(username)
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if r.Method == "GET" {
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t, _ := template.ParseFiles("login.gtpl")
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t.Execute(w, nil)
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} else {
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fmt.Println("username:", r.Form["username"])
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sess.Set("username", r.Form["username"])
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fmt.Println("password:", r.Form["password"])
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}
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}
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##How to write own provider
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When we develop a web app, maybe you want to write a provider because you must meet the requirements.
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Write a provider is so easy. You only define two struct type(Session and Provider),which satisfy the interface definition.Maybe The memory provider is a good example for you.
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type SessionStore interface {
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Set(key, value interface{}) error //set session value
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Get(key interface{}) interface{} //get session value
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Delete(key interface{}) error //delete session value
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SessionID() string //back current sessionID
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SessionRelease() // release the resource
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}
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type Provider interface {
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SessionInit(maxlifetime int64, savePath string) error
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SessionRead(sid string) (SessionStore, error)
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SessionDestroy(sid string) error
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SessionGC()
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}
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##LICENSE
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BSD License http://creativecommons.org/licenses/BSD/ |