go file server

golang_file_server.md

@@ -0,0 +1,42 @@
+ 根目录URL处理
+
+	package main
+
+	import (
+		"net/http"
+	)
+
+	func main() {
+		http.Handle("/", http.FileServer(http.Dir("/tmp"))
+		log.Fatal(http.ListenAndServe(":8080", nil))
+		
+		// or
+		// log.Fatal(http.ListenAndServe(":8080", 
+		//			http.FileServer(http.Dir("/usr/share/doc"))))
+	}
+		
+备注：如果使用暴露dir的方式存在安全隐患的，也可以采用serveFile的方式进行
+
+	http.HandleFunc("/static2/", func(w http.ResponseWriter, r *http.Request) {
+		// !TODO Add check file access or other thing
+   		http.ServeFile(w, r, r.URL.Path[1:])
+	})
+
+前缀目录url处理	
+
+	package main
+
+	import (
+		"net/http"
+	)
+
+	func main() {
+		http.Handle("/tmp/", http.StripPrefix("/tmp/", http.FileServer(http.Dir("/tmp/static"))))
+		http.ListenAndServe(":8080", nil)
+	}
+
+参考：
+
+1. [Golang. What to use? http.ServeFile(..) or http.FileServer(..)?](http://stackoverflow.com/questions/28793619/golang-what-to-use-http-servefile-or-http-fileserver)
+2. [golang Http ServerFile](https://golang.org/pkg/net/http/#ServeFile)
+3. [golang Http FileServer](https://golang.org/pkg/net/http/#FileServer)