Format and remove 14.2.md spaces
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zh/14.2.md
116
zh/14.2.md
@@ -5,56 +5,56 @@
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beego中主要有以下的全局变量来控制session处理:
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```Go
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//related to session
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SessionOn bool // 是否开启session模块,默认不开启
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SessionProvider string // session后端提供处理模块,默认是sessionManager支持的memory
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SessionName string // 客户端保存的cookies的名称
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SessionGCMaxLifetime int64 // cookies有效期
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//related to session
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SessionOn bool // 是否开启session模块,默认不开启
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SessionProvider string // session后端提供处理模块,默认是sessionManager支持的memory
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SessionName string // 客户端保存的cookies的名称
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SessionGCMaxLifetime int64 // cookies有效期
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GlobalSessions *session.Manager //全局session控制器
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GlobalSessions *session.Manager //全局session控制器
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```
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当然上面这些变量需要初始化值,也可以按照下面的代码来配合配置文件以设置这些值:
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```Go
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if ar, err := AppConfig.Bool("sessionon"); err != nil {
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SessionOn = false
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} else {
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SessionOn = ar
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}
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if ar := AppConfig.String("sessionprovider"); ar == "" {
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SessionProvider = "memory"
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} else {
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SessionProvider = ar
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}
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if ar := AppConfig.String("sessionname"); ar == "" {
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SessionName = "beegosessionID"
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} else {
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SessionName = ar
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}
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if ar, err := AppConfig.Int("sessiongcmaxlifetime"); err != nil && ar != 0 {
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int64val, _ := strconv.ParseInt(strconv.Itoa(ar), 10, 64)
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SessionGCMaxLifetime = int64val
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} else {
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SessionGCMaxLifetime = 3600
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}
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if ar, err := AppConfig.Bool("sessionon"); err != nil {
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SessionOn = false
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} else {
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SessionOn = ar
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}
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if ar := AppConfig.String("sessionprovider"); ar == "" {
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SessionProvider = "memory"
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} else {
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SessionProvider = ar
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}
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if ar := AppConfig.String("sessionname"); ar == "" {
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SessionName = "beegosessionID"
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} else {
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SessionName = ar
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}
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if ar, err := AppConfig.Int("sessiongcmaxlifetime"); err != nil && ar != 0 {
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int64val, _ := strconv.ParseInt(strconv.Itoa(ar), 10, 64)
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SessionGCMaxLifetime = int64val
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} else {
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SessionGCMaxLifetime = 3600
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}
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```
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在beego.Run函数中增加如下代码:
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```Go
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if SessionOn {
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GlobalSessions, _ = session.NewManager(SessionProvider, SessionName, SessionGCMaxLifetime)
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go GlobalSessions.GC()
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}
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if SessionOn {
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GlobalSessions, _ = session.NewManager(SessionProvider, SessionName, SessionGCMaxLifetime)
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go GlobalSessions.GC()
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}
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```
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这样只要SessionOn设置为true,那么就会默认开启session功能,独立开一个goroutine来处理session。
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为了方便我们在自定义Controller中快速使用session,作者在`beego.Controller`中提供了如下方法:
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```Go
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func (c *Controller) StartSession() (sess session.Session) {
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sess = GlobalSessions.SessionStart(c.Ctx.ResponseWriter, c.Ctx.Request)
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return
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}
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func (c *Controller) StartSession() (sess session.Session) {
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sess = GlobalSessions.SessionStart(c.Ctx.ResponseWriter, c.Ctx.Request)
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return
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}
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```
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## session使用
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通过上面的代码我们可以看到,beego框架简单地继承了session功能,那么在项目中如何使用呢?
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@@ -62,28 +62,28 @@ beego中主要有以下的全局变量来控制session处理:
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首先我们需要在应用的main入口处开启session:
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```Go
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beego.SessionOn = true
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beego.SessionOn = true
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```
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然后我们就可以在控制器的相应方法中如下所示的使用session了:
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```Go
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func (this *MainController) Get() {
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var intcount int
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sess := this.StartSession()
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count := sess.Get("count")
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if count == nil {
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intcount = 0
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} else {
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intcount = count.(int)
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}
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intcount = intcount + 1
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sess.Set("count", intcount)
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this.Data["Username"] = "astaxie"
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this.Data["Email"] = "astaxie@gmail.com"
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this.Data["Count"] = intcount
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this.TplNames = "index.tpl"
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func (this *MainController) Get() {
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var intcount int
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sess := this.StartSession()
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count := sess.Get("count")
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if count == nil {
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intcount = 0
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} else {
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intcount = count.(int)
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}
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intcount = intcount + 1
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sess.Set("count", intcount)
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this.Data["Username"] = "astaxie"
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this.Data["Email"] = "astaxie@gmail.com"
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this.Data["Count"] = intcount
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this.TplNames = "index.tpl"
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}
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```
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上面的代码展示了如何在控制逻辑中使用session,主要分两个步骤:
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@@ -91,19 +91,19 @@ beego中主要有以下的全局变量来控制session处理:
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```Go
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//获取对象,类似PHP中的session_start()
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sess := this.StartSession()
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//获取对象,类似PHP中的session_start()
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sess := this.StartSession()
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```
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2. 使用session进行一般的session值操作
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```Go
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//获取session值,类似PHP中的$_SESSION["count"]
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sess.Get("count")
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//设置session值
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sess.Set("count", intcount)
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//获取session值,类似PHP中的$_SESSION["count"]
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sess.Get("count")
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//设置session值
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sess.Set("count", intcount)
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```
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从上面代码可以看出基于beego框架开发的应用中使用session相当方便,基本上和PHP中调用`session_start()`类似。
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