前言 要使用Go建立一個RESTful的Web Server非常地簡單, 只要使用內建的模組net/http就能輕易達成 首先, 匯入相關套件 package main import ( "encoding/json" "net/http" ) 添加兩個路由"/", "/users", 以及實作兩個handler來處理對應的請求 func handler(w http.ResponseWriter, request *http.Request) { w.Write([]byte("Hello world.")) } func usersHandler(w http.ResponseWriter, request *http.Request) { data := make(map[string]interface{}) data["users"] = []interface{}{ map[string]interface{}{ "name": "andy", "pwd": "123456", }, } jsonByte, _ := json.Marshal(data) w.Header().Set("Content-Type", "application/json") w.Write(jsonByte) } func main() { http.HandleFunc("/", handler) http.HandleFunc("/users", usersHandler) ... 給定要聽的port http.ListenAndServe(":3000", nil) 測試 localhost:3000 測試localhost:3000/users...