樣例代碼
go 啓動http服務器很簡單,直接使用內置的net/http包即可。不需要部署tomcat等服務。
package main
import (
"fmt"
"net/http"
)
func handler(w http.ResponseWriter, r *http.Request) {
fmt.Fprintln(w, "Hello World", r.URL.Path)
}
func StartHttpSvr() {
http.HandleFunc("/", handler)
fmt.Println("Start server at :8888")
err := http.ListenAndServe(":8888", nil)
if err != nil {
fmt.Println(err)
}
}
func main() {
StartHttpSvr()
}
go run nethttp.go
Start server at :8888
瀏覽器訪問:
http://127.0.0.1:8888/
升級:同時處理動態請求和靜態資源
package main
import (
"fmt"
"net/http"
)
func handler(w http.ResponseWriter, r *http.Request) {
fmt.Fprintln(w, "Hello World", r.URL.Path)
}
func StartHttpSvr() {
fsh := http.FileServer(http.Dir("./static"))
http.Handle("/static/", http.StripPrefix("/static/", fsh))
http.HandleFunc("/", handler)
fmt.Println("Start server at :8888")
err := http.ListenAndServe(":8888", nil)
if err != nil {
fmt.Println(err)
}
}
func main() {
StartHttpSvr()
}
這樣可以訪問:http://127.0.0.1:8888/static/
靜態資源放在./static/目錄下即可訪問。
另外,內置的Mux性能還可以,如果追求更高的性能,推薦使用fasthttp或者httprouter作爲路由器。