RegisterUser支持注册用户时，不指定手机号

business/jxutils/jxcontext/jxcontext.go

@@ -145,3 +145,14 @@ func (ctx *Context) GetMobileAndUserID() (mobile, userID string) {
 	}
 	return mobile, userID
 }
+
+func (ctx *Context) GetUserID() (userID string) {
+	token := ctx.GetToken()
+	authInfo, err2 := auth2.GetTokenInfo(token)
+	if err2 == nil {
+		if authInfo.TokenType == auth2.TokenTypeNormal {
+			userID = authInfo.GetID()
+		}
+	}
+	return userID
+}