# router

**Repository Path**: lichenxin/router

## Basic Information

- **Project Name**: router
- **Description**: golang router 简单实现，学习使用
- **Primary Language**: Go
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 0
- **Created**: 2018-11-07
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

golang router 简单实现， 支持中间件


```
package main

import (
	"fmt"
	"log"
	"net/http"
	"router"
)

// middleware
func Logger(h http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		h.ServeHTTP(w, r)
		log.Println("method:", r.Method, "path:", r.URL.Path)
	})
}

func Recover(h http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if err := recover(); err != nil {
			log.Fatal(err)
			w.WriteHeader(http.StatusInternalServerError)
			w.Write([]byte(http.StatusText(http.StatusInternalServerError)))
		}
		h.ServeHTTP(w, r)
	})
}

func main() {
	r := router.NewRouter()

	r.Use(Recover)
	r.Use(Logger)

	r.Get("/", Index)
	r.Get("/panic", Panic)
	r.Get("/demo/{name:int}/{age:int}", ParamInt)
	r.Get("/demo/{name:string}", ParamString)
	http.ListenAndServe(":8989", r)
}

func Index(w http.ResponseWriter, r *http.Request) {
	fmt.Fprintln(w, "Home")
}

func Panic(w http.ResponseWriter, r *http.Request) {
	panic("panic error")
}

func ParamInt(w http.ResponseWriter, r *http.Request) {
	fmt.Fprintln(w, "param int ", r.Context().Value("name"), r.Context().Value("age"))
}

func ParamString(w http.ResponseWriter, r *http.Request) {
	fmt.Fprintln(w, "param string ", r.Context().Value("name"))
}


```