用golang进行http请求类型多了,总结备忘一下。
1.普通的post\get请求
var r http.Request r.ParseForm() r.Form.Add("uuid", orderUUID) bodystr := strings.TrimSpace(r.Form.Encode()) request, err := http.NewRequest("GET", url, strings.NewReader(bodystr)) if err != nil { //TODO: } request.Header.Set("Content-Type", "application/x-www-form-urlencoded") request.Header.Set("Connection", "Keep-Alive") var resp *http.Response resp, err = http.DefaultClient.Do(request) if err != nil { //TODO: }
2. body全部二进制数据流进行post
//body提交二进制数据 func DoBytesPost(url string, data []byte) ([]byte, error) { body := bytes.NewReader(data) request, err := http.NewRequest(POST_METHOD, url, body) if err != nil { log.Println("http.NewRequest,[err=%s][url=%s]", err, url) return []byte(""), err } request.Header.Set("Connection", "Keep-Alive") var resp *http.Response resp, err = http.DefaultClient.Do(request) if err != nil { log.Println("http.Do failed,[err=%s][url=%s]", err, url) return []byte(""), err } defer resp.Body.Close() b, err := ioutil.ReadAll(resp.Body) if err != nil { log.Println("http.Do failed,[err=%s][url=%s]", err, url) } return b, err }
3. 模拟web表单文件上传进行post
func newfileUploadRequest(uri string, params map[string]string, paramName, path string) (*http.Request, error) { file, err := os.Open(path) if err != nil { return nil, err } defer file.Close() body := &bytes.Buffer{} writer := multipart.NewWriter(body) part, err := writer.CreateFormFile(paramName, path) if err != nil { return nil, err } _, err = io.Copy(part, file) for key, val := range params { _ = writer.WriteField(key, val) } err = writer.Close() if err != nil { return nil, err } request, err := http.NewRequest("POST", uri, body) request.Header.Set("Content-Type", writer.FormDataContentType()) return request, err }
via:http://studygolang.com/articles/4383