go语言get和post请求的总结，把服务代码和Get和Post代码结合在一起了。

#####代码参考地址：https://xiequan.info/go-web开发的get和post请求发送与解析/ ######启动程序需要的命令 * go run main.go server 开启服务 * go run main.go get get请求 * go run main.go post post请求 ```go package main import ( "bytes" "encoding/json" "fmt" "html" "io/ioutil" "log" "net/http" "net/url" "os" "strings" ) type Server struct { ServerName string //go里面的大小写 特别重要 所以要注意 ServerIP string } type Serverslice struct { Servers []Server ServersID string } func main() { if len(os.Args) == 2 && strings.ToLower(os.Args[1]) == "server" { HandleServer() } else if len(os.Args) == 2 && strings.ToLower(os.Args[1]) == "get" { HandleGet() } else if len(os.Args) == 2 && strings.ToLower(os.Args[1]) == "post" { HandlePost() } else { fmt.Println("command error") } } func HandleServer() { http.HandleFunc("/", handler) http.ListenAndServe(":8080", nil) } func handler(w http.ResponseWriter, r *http.Request) { r.ParseForm() //解析参数，默认是不会解析的 fmt.Fprintf(w, "Hi, I love you %s", html.EscapeString(r.URL.Path[1:])) if r.Method == "GET" { fmt.Println("method:", r.Method) //获取请求的方法 fmt.Println("username", r.Form["username"]) fmt.Println("password", r.Form["password"]) for k, v := range r.Form { fmt.Print("key:", k, "; ") fmt.Println("val:", strings.Join(v, "")) } } else if r.Method == "POST" { result, _ := ioutil.ReadAll(r.Body) r.Body.Close() fmt.Printf("%s\n", result) //未知类型的推荐处理方法 var f interface{} json.Unmarshal(result, &f) m := f.(map[string]interface{}) for k, v := range m { switch vv := v.(type) { case string: fmt.Println(k, "is string", vv) case int: fmt.Println(k, "is int", vv) case float64: fmt.Println(k, "is float64", vv) case []interface{}: fmt.Println(k, "is an array:") for i, u := range vv { fmt.Println(i, u) } default: fmt.Println(k, "is of a type I don't know how to handle") } } //结构已知，解析到结构体 var s Serverslice json.Unmarshal([]byte(result), &s) fmt.Println(s.ServersID) for i := 0; i < len(s.Servers); i++ { fmt.Println(s.Servers[i].ServerName) fmt.Println(s.Servers[i].ServerIP) } } } func HandleGet() { u, _ := url.Parse("http://localhost:8080/") q := u.Query() q.Set("username", "user") q.Set("password", "passwd") u.RawQuery = q.Encode() fmt.Println("rawQuery:", u.RawQuery) res, err := http.Get(u.String()) if err != nil { log.Fatal(err) return } result, err := ioutil.ReadAll(res.Body) res.Body.Close() if err != nil { log.Fatal(err) return } fmt.Printf("%s", result) } func HandlePost() { var s Serverslice var newServer Server newServer.ServerName = "Guangzhou_VPN" newServer.ServerIP = "127.0.0.1" s.Servers = append(s.Servers, newServer) s.Servers = append(s.Servers, Server{ServerName: "Shanghai_VPN", ServerIP: "127.0.0.2"}) s.Servers = append(s.Servers, Server{ServerName: "Beijing_VPN", ServerIP: "127.0.0.3"}) s.ServersID = "team1" b, err := json.Marshal(s) if err != nil { fmt.Println("json err:", err) } body := bytes.NewBuffer([]byte(b)) res, err := http.Post("http://localhost:8080", "application/json;charset=utf-8", body) if err != nil { log.Fatal(err) return } result, err := ioutil.ReadAll(res.Body) res.Body.Close() if err != nil { log.Fatal(err) return } fmt.Printf("%s", result) } ```