init

app/lea/session/session.go

@@ -0,0 +1,31 @@
+package session
+
+import (
+	"github.com/robfig/revel"
+	"leanote/app/lea/memcache"
+//	. "leanote/app/lea"
+)
+
+// 使用filter
+// 很巧妙就使用了memcache来处理session
+// revel的session(cookie)只存sessionId, 其它信息存在memcache中
+
+func SessionFilter(c *revel.Controller, fc []revel.Filter) {
+	sessionId := c.Session.Id()
+	
+	// 从memcache中得到cache, 赋给session
+	cache := revel.Session(memcache.Get(sessionId))
+	if cache == nil {
+		cache = revel.Session{}
+		cache.Id()
+	}
+	c.Session = cache
+
+	fc[0](c, fc[1:])
+	
+	// 再把session保存之
+	memcache.Set(sessionId, c.Session, -1)	
+	
+	// 只留下sessionId
+	c.Session = revel.Session{revel.SESSION_ID_KEY: sessionId}
+}