up

main.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+)
+
+var (
+	msg string
+)
+
+func main() {
+	var port string
+	if len(os.Args) > 1 {
+		port = ":" + os.Args[1]
+	}
+	mux := http.NewServeMux()
+	mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Query().Get("hello") != "" {
+			msg = r.URL.Query().Get("hello")
+		}
+
+		fmt.Println(r.RemoteAddr, r.URL.String())
+		fmt.Println("Scheme", r.URL.Scheme, "Host", r.URL.Host, "Path", r.URL.Path)
+		io.WriteString(w, fmt.Sprintf("hello %s"+"\n", msg))
+	})
+
+	if port != "" {
+		fmt.Println("当前监听:", port)
+		fmt.Println(http.ListenAndServe(port, mux))
+	} else {
+		fmt.Println("当前监听:80")
+		fmt.Println(http.ListenAndServe(":80", mux))
+
+	}
+
+}