gin路由和路由组

Gin框架介绍及使用

演示实例

package main

import(
    "github.com/gin-gonic/gin"
    "net/http"
)
func main(){
    r := gin.Default()
    // 请求方法的大集合 / 大杂烩
    r.Any("/user", func(c *gin.Context) {
        switch c.Request.Method{
        case http.MethodGet:
            c.JSON(http.StatusOK,gin.H{
                "Method":"Get",
            })
        case http.MethodPost:
            c.JSON(http.StatusOK,gin.H{
                "Method":"Post",
            })
        case http.MethodDelete:
            c.JSON(http.StatusOK,gin.H{
                "Method":"Delete",
            })
        }
    })
    //NoRoute
    r.NoRoute(func(c *gin.Context) {
        c.JSON(http.StatusNotFound,gin.H{
            "Message" : "Notfound",
        })
    })
    // 路由组的组 多用于区分不同业务线或API
    // 把公用的前缀提取出来,创建一个路由组
    videoGroup := r.Group("/video")
    {
        videoGroup.GET("index", func(c *gin.Context) {
            c.JSON(http.StatusOK,gin.H{
                "Message":"/video/index",
            })
        })
        videoGroup.GET("home", func(c *gin.Context) {
            c.JSON(http.StatusOK,gin.H{
                "Message":"/video/home",
            })
        })
        videoGroup.GET("user", func(c *gin.Context) {
            c.JSON(http.StatusOK,gin.H{
                "Message":"/video/user",
            })
        })
    }
    r.Run()
}

上课笔记

• r.Any("/user", func(c *gin.Context){...}访问/user的任意方法 利用switch来分别编写不同请求方法对应不同的处理函数即可

    switch c.Request.Method{
    case http.MethodGet:
        c.JSON(http.StatusOK,gin.H{
            "Method":"Get",
        })
    case http.MethodPost:
        c.JSON(http.StatusOK,gin.H{
            "Method":"Post",
        })
    case http.MethodDelete:
        c.JSON(http.StatusOK,gin.H{
            "Method":"Delete",
        })
    }

• NoRoute如果监听的IP地址下访问了其他的Path而没有编写时,进行处理

    videoGroup := r.Group("/video")
    {
        videoGroup.GET("index", func(c *gin.Context) {
            c.JSON(http.StatusOK,gin.H{
                "Message":"/video/index",
            })
        })
        videoGroup.GET("home", func(c *gin.Context) {
            c.JSON(http.StatusOK,gin.H{
                "Message":"/video/home",
            })
        })
        videoGroup.GET("user", func(c *gin.Context) {
            c.JSON(http.StatusOK,gin.H{
                "Message":"/video/user",
            })
        })
    }

• 路由组的组 多用于区分不同业务线或API,把公用的前缀提取出来,创建一个路由组