http package

Author: tmpbook

http/Step1/web.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"io"
+	"net/http"
+)
+
+func hello(rw http.ResponseWriter, req *http.Request) {
+	io.WriteString(rw, "hello tmpbook")
+}
+
+func main() {
+	// HandleFunc 源代码如下
+	http.HandleFunc("/", hello)
+	// 此处省略了错误处理，如果出错会自动退出，比如端口占用
+	http.ListenAndServe(":8080", nil)
+}
+
+// func HandleFunc(pattern string, handler func(ResponseWriter, *Request)) {
+// 	DefaultServeMux.HandleFunc(pattern, handler)
+// }

http/Step2/web.go

@@ -0,0 +1,18 @@
+package main
+
+import (
+	"io"
+	"net/http"
+)
+
+type MyHandle struct{}
+
+func main() {
+	mux := http.NewServeMux()
+	mux.Handle("/", &MyHandle{})
+	http.ListenAndServe(":8080", mux)
+}
+
+func (*MyHandle) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	io.WriteString(w, "URL: "+r.URL.String())
+}

http/Step3/web.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+	"io"
+	"net/http"
+	"time"
+)
+
+var mux map[string]func(http.ResponseWriter, *http.Request)
+
+func main() {
+	server := http.Server{
+		Addr:        ":8080",
+		Handler:     &MyHandler{},
+		ReadTimeout: 6 * time.Second,
+	}
+	mux = make(map[string]func(http.ResponseWriter, *http.Request))
+	mux["/hello"] = hello
+	mux["/bye"] = bye
+
+	server.ListenAndServe()
+}
+
+type MyHandler struct{}
+
+func (*MyHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	if h, ok := mux[r.URL.String()]; ok {
+		h(w, r)
+	}
+	io.WriteString(w, "\nURL: "+r.URL.String())
+}
+
+func hello(w http.ResponseWriter, r *http.Request) {
+	io.WriteString(w, "hello module")
+}
+
+func bye(w http.ResponseWriter, r *http.Request) {
+	io.WriteString(w, "bye module")
+}