## **準備工作** * 根目錄下創建 middleware文件夾 并且創建指定的中間件文件  checkAuth.go ~~~ package middleware import ( "fmt" "github.com/gin-gonic/gin" ) func LoginToken(ctx *gin.Context) { fmt.Println("獲取并且解析 前端傳來的token") } ~~~ ## **路由中間件** * 注冊指定中間件 middleware.LoginToken ~~~ route.GET("/user/list",middleware.LoginToken,api.UserController{}.List) route.POST("/user/insert",middleware.LoginToken,api.UserController{}.Insert) ~~~ ## **全局中間件** ~~~ route.Use(middleware.LoginToken) ~~~ api.go ~~~ package routes import ( "github.com/gin-gonic/gin" "learn_gin/controllers/api" "learn_gin/middleware" ) func Api(r *gin.Engine) { route := r.Group("/api") route.Use(middleware.LoginToken) route.GET("/login", api.Login) route.GET("/user/list",api.UserController{}.List) route.POST("/user/insert",api.UserController{}.Insert) } ~~~ ## **路由分組中間件** ~~~ route.Group("/api",middleware.LoginToken) { route.GET("/user/list",api.UserController{}.List) route.POST("/user/insert",api.UserController{}.Insert) } ~~~ api.go ~~~ package routes import ( "github.com/gin-gonic/gin" "learn_gin/controllers/api" "learn_gin/middleware" ) func Api(r *gin.Engine) { route := r.Group("/api") route.GET("/login", api.Login) route.Group("/api",middleware.LoginToken) { route.GET("/user/list",api.UserController{}.List) route.POST("/user/insert",api.UserController{}.Insert) } } ~~~ ## **拓展** * 配置多個中間 `c.Next`    `c.Abort`