具名参数

具名参数只是您的路由的自定义路径，您可以在上下文语境中使用具名参数访问它所表示的路由。

// Param returns the string representation of the key's path named parameter's value
Param(key string) string

// ParamDecoded returns a url-query-decoded path parameter's value
ParamDecoded(key string) string

// ParamInt returns the int representation of the key's path named parameter's value
ParamInt(key string) (int, error)

// ParamInt64 returns the int64 representation of the key's path named parameter's value
ParamInt64(key string) (int64, error)

路径的长度没有限制。

使用

package main

import (
    "strconv"

    "github.com/kataras/iris"
)

func main() {
    // Matches /hello/iris,  (if PathCorrection:true match also /hello/iris/)
    // Doesn't match /hello or /hello/ or /hello/iris/something
    iris.Get("/hello/:name", func(ctx *iris.Context) {
        // Retrieve the parameter name
        name := ctx.Param("name")
        ctx.Writef("Hello %s", name)
    })

    // Matches /profile/iris/friends/1, (if PathCorrection:true match also /profile/iris/friends/1/)
    // Doesn't match /profile/ or /profile/iris
    // Doesn't match /profile/iris/friends or  /profile/iris/friends
    // Doesn't match /profile/iris/friends/2/something
    iris.Get("/profile/:fullname/friends/:friendID", func(ctx *iris.Context) {
        // Retrieve the parameters fullname and friendID
        fullname := ctx.Param("fullname")
        friendID, err := ctx.ParamInt("friendID")
        if err != nil {
            // Do something with the error
            return
        }
        ctx.HTML(iris.StatusOK, "<b> Hello </b>"+fullname+"<b> with friends ID </b>"+strconv.Itoa(friendID))
    })

    // Route Example:
    // /posts/:id and /posts/new conflict with each other for performance reasons and simplicity (dynamic value conficts with the static 'new').   
    // but if you need to have them you can do following:
    iris.Get("/posts/*action", func(ctx *iris.Context) {
        action := ctx.Param("action")
        if action == "/new" {
            // it's posts/new page
            ctx.Writef("POSTS NEW")
        } else {
            ctx.Writef("OTHER POSTS")
            // it's posts/:id page
            //doSomething with the action which is the id
        }
    })

    iris.Listen(":8080")
}

任意匹配

// Will match any request which's url prefix is "/anything/" and has content after that
// Matches /anything/whateverhere/whateveragain or /anything/blablabla
// ctx.Param("randomName") will be /whateverhere/whateveragain, blablabla
// Doesn't match /anything or /anything/ or /something
iris.Get("/anything/*randomName", func(ctx *iris.Context) { } )