func demo02() { url := "http://www.baidu.com" username := "zhangsan" password := "password" loginRequest := LoginRequest{Username: username, Password: password} postData, err := json.Marshal(loginRequest) if err != nil { fmt.Println("Parse json failed:", err) return } fmt.Println("URL:>", url, "PostData:>", postData) fmt.Println("loginRequest:", bytes.NewBuffer(postData)) reader := bytes.NewReader(postData) request, err := http.NewRequest("POST", url, reader) if err != nil { fmt.Println("Http new Request object failed:", err) return } request.Header.Set("Content-Type", "application/json;charset=UTF-8") client := &http.Client{} response, err := client.Do(request) if err != nil { fmt.Println("Execute post request failed:", err) return } defer response.Body.Close() fmt.Println("response status:", response.Status) fmt.Println("response code:", response.StatusCode) fmt.Println("response headers:", response.Header) body, err := ioutil.ReadAll(response.Body) if err != nil { panic(err) } fmt.Println("response body:", string(body)) } func demo01() { response, err := http.Get("http://localhost:9000/http/user/?name=zhangsan") if err != nil { fmt.Println("err:", err) return } b, err := ioutil.ReadAll(response.Body) if err != nil { fmt.Println("err:", err) return } fmt.Println(string(b)) }