7Days Gee Day1

day1/base1/go.mod

@@ -0,0 +1,3 @@
+module git.srv.ink/7DaysGee/base1
+
+go 1.19

day1/base1/main.go

@@ -0,0 +1,24 @@
+package main
+
+import (
+	"fmt"
+	"net/http"
+)
+
+func main() {
+	// 绑定路由规则，执行的函数
+	http.HandleFunc("/", indexHander)
+	http.HandleFunc("/hello", helloHandler)
+	// 启动服务
+	http.ListenAndServe(":8000", nil)
+}
+
+func indexHander(w http.ResponseWriter, r *http.Request) {
+	fmt.Fprintf(w, "Hello World")
+}
+
+func helloHandler(w http.ResponseWriter, r *http.Request) {
+	for k, v := range r.Header {
+		fmt.Fprintf(w, "Header[%q] = %q", k, v)
+	}
+}

day1/base2/go.mod

@@ -0,0 +1,3 @@
+module git.srv.ink/7DaysGee/Day1/base2
+
+go 1.19

day1/base2/main.go

@@ -0,0 +1,25 @@
+package main
+
+import (
+	"fmt"
+	"net/http"
+)
+
+type Engine struct{}
+
+func (engine *Engine) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	switch r.URL.Path {
+	case "/":
+		fmt.Fprintf(w, "URL.Path = %q", r.URL.Path)
+	case "/hello":
+		for k, v := range r.Header {
+			fmt.Fprintf(w, "Header[%q] = %q", k, v)
+		}
+	default:
+		fmt.Fprintf(w, "404 NOT FOUND: %s", r.URL)
+	}
+}
+func main() {
+	engine := new(Engine)
+	http.ListenAndServe(":8000", engine)
+}

day1/base3/gee/gee.go

@@ -0,0 +1,54 @@
+package gee
+
+import (
+	"fmt"
+	"net/http"
+)
+
+// HandlerFunc 路由匹配到后的具体函数
+type HandlerFunc func(w http.ResponseWriter, r *http.Request)
+
+// Engine 路由表 实现了ServeHTTP接口
+type Engine struct {
+	router map[string]HandlerFunc
+}
+
+// ServeHTTP 实现了ServeHTTP接口
+func (engine *Engine) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	// 获取连接的请求方式和路径
+	key := r.Method + "-" + r.URL.Path
+	// 对比和匹配路由
+	if handler, ok := engine.router[key]; ok {
+		handler(w, r)
+	} else {
+		w.WriteHeader(http.StatusNotFound)
+		_, _ = fmt.Fprintf(w, "404 NOT FOUND: %s", r.URL)
+	}
+}
+
+// Run 启动服务
+func (engine *Engine) Run(addr string) (err error) {
+	return http.ListenAndServe(addr, engine)
+}
+
+// 封装路由规则和具体的处理函数
+// addRoute 添加路由规则
+func (engine *Engine) addRoute(method string, pattern string, handler HandlerFunc) {
+	key := method + "-" + pattern
+	engine.router[key] = handler
+}
+
+// GET 添加GET路由规则
+func (engine *Engine) GET(pattern string, handler HandlerFunc) {
+	engine.addRoute("GET", pattern, handler)
+}
+
+// POST 添加POST路由规则
+func (engine *Engine) POST(pattern string, handler HandlerFunc) {
+	engine.addRoute("POST", pattern, handler)
+}
+
+// New 实例化Engine
+func New() *Engine {
+	return &Engine{router: make(map[string]HandlerFunc)}
+}

day1/base3/gee/go.mod

@@ -0,0 +1,3 @@
+module gee
+
+go 1.19

day1/base3/go.mod

@@ -0,0 +1,10 @@
+module git.srv.ink/7DaysGee/Day1/base3
+
+go 1.19
+
+require (
+	gee v0.0.1
+)
+replace (
+	gee => ./gee
+)

day1/base3/go.work

@@ -0,0 +1,6 @@
+go 1.19
+
+use (
+	.
+	gee
+)

day1/base3/main.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"fmt"
+	"gee"
+	"net/http"
+)
+
+func main() {
+	r := gee.New()
+	r.GET("/", func(w http.ResponseWriter, r *http.Request) {
+		_, _ = w.Write([]byte("Hello World"))
+	})
+	r.GET("/hello", func(w http.ResponseWriter, r *http.Request) {
+		for k, v := range r.Header {
+			_, _ = fmt.Fprintf(w, "Header[%q] = %q", k, v)
+		}
+	})
+	r.POST("/login", func(w http.ResponseWriter, r *http.Request) {
+		_, _ = fmt.Fprintf(w, "POST login")
+	})
+	err := r.Run(":9000")
+	if err != nil {
+		return
+	}
+}

day1/go.mod

@@ -1,3 +0,0 @@
-module git.srv.ink/7DaysGee
-
-go 1.19