Created
February 1, 2020 10:00
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Build Web Application With Golang の Sessionのサンプル
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<html> | |
<head> | |
<title></title> | |
</head> | |
<body> | |
count: {{.}} | |
</body> | |
</html> |
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<html> | |
<head> | |
<title></title> | |
</head> | |
<body> | |
<form action="/login" method="post"> | |
<input type="checkbox" name="interest" value="football">サッカー | |
<input type="checkbox" name="interest" value="basketball">バスケットボール | |
<input type="checkbox" name="interest" value="tennis">テニス | |
ユーザ名:<input type="text" name="username"> | |
パスワード:<input type="password" name="password"> | |
年齢:<input type="text" name="age"> | |
<input type="hidden" name="token" value="{{.}}"> | |
<input type="submit" value="ログイン"> | |
</form> | |
</body> | |
</html> |
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package main | |
import ( | |
"github.com/astaxie/session" | |
_ "github.com/astaxie/session/providers/memory" | |
"net/http" | |
"html/template" | |
"log" | |
"fmt" | |
"time" | |
) | |
var globalSessions *session.Manager | |
var loginSession session.Session | |
func main() { | |
http.HandleFunc("/", index) //アクセスのルーティングを設定します | |
http.HandleFunc("/login", login) //アクセスのルーティングを設定します | |
http.HandleFunc("/count", count) //アクセスのルーティングを設定します | |
err := http.ListenAndServe(":9090", nil) //監視するポートを設定します | |
if err != nil { | |
log.Fatal("ListenAndServe: ", err) | |
} | |
} | |
func init() { | |
globalSessions, _ = session.NewManager("memory","gosessionid",3600) | |
} | |
func login(w http.ResponseWriter, r *http.Request) { | |
loginSession = globalSessions.SessionStart(w, r) | |
r.ParseForm() | |
if r.Method == "GET" { | |
t, _ := template.ParseFiles("html/login.gtpl") | |
w.Header().Set("Content-Type", "text/html") | |
t.Execute(w, loginSession.Get("username")) | |
} else { | |
loginSession.Set("username", r.Form["username"]) | |
http.Redirect(w, r, "/", 302) | |
} | |
} | |
func index(w http.ResponseWriter, r *http.Request) { | |
if loginSession != nil { | |
fmt.Println("sessionId: ", loginSession.SessionID) | |
fmt.Println("Username: ", loginSession.Get("username")) | |
} else { | |
fmt.Println("loginSession is nil") | |
} | |
fmt.Fprintf(w, "Hello astaxie!") //ここでwに書き込まれたものがクライアントに出力されます。 | |
} | |
func count(w http.ResponseWriter, r *http.Request) { | |
sess := globalSessions.SessionStart(w, r) | |
createtime := sess.Get("createtime") | |
if createtime == nil { | |
sess.Set("createtime", time.Now().Unix()) | |
} else if (createtime.(int64) + 360) < (time.Now().Unix()) { | |
globalSessions.SessionDestroy(w, r) | |
sess = globalSessions.SessionStart(w, r) | |
} | |
ct := sess.Get("countnum") | |
if ct == nil { | |
sess.Set("countnum", 1) | |
} else { | |
sess.Set("countnum", (ct.(int) + 1)) | |
} | |
t, _ := template.ParseFiles("html/count.gtpl") | |
w.Header().Set("Content-Type", "text/html") | |
t.Execute(w, sess.Get("countnum")) | |
} |
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