127 lines
3.0 KiB
Go
127 lines
3.0 KiB
Go
package utils
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io"
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"mime/multipart"
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"net/http"
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"net/url"
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"path/filepath"
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"strings"
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)
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func HttpDo(reqUrl, method string, params map[string]string, header map[string]string) (data []byte, err error) {
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var paramStr string = ""
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if contentType, ok := header["ContentType"]; ok && strings.Contains(contentType, "json") {
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bytesData, _ := json.Marshal(params)
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paramStr = string(bytesData)
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} else {
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for k, v := range params {
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if len(paramStr) == 0 {
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paramStr = fmt.Sprintf("%s=%s", k, url.QueryEscape(v))
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} else {
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paramStr = fmt.Sprintf("%s&%s=%s", paramStr, k, url.QueryEscape(v))
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}
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}
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}
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client := &http.Client{}
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req, err := http.NewRequest(strings.ToUpper(method), reqUrl, strings.NewReader(paramStr))
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if err != nil {
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return nil, err
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}
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for k, v := range header {
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req.Header.Set(k, v)
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}
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resp, err := client.Do(req)
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if err != nil {
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return nil, err
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}
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defer func() {
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if resp.Body != nil {
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err = resp.Body.Close()
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if err != nil {
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return
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}
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}
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}()
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var body []byte
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if resp.Body != nil {
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body, err = io.ReadAll(resp.Body)
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if err != nil {
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return nil, err
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}
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}
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return body, nil
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}
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type UploadFile struct {
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// 表单名称
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Name string
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Filepath string
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// 文件全路径
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File *bytes.Buffer
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}
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func PostFile(reqUrl string, reqParams map[string]string, contentType string, files []UploadFile, headers map[string]string) string {
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requestBody, realContentType := getReader(reqParams, contentType, files)
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httpRequest, _ := http.NewRequest("POST", reqUrl, requestBody)
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// 添加请求头
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httpRequest.Header.Add("Content-Type", realContentType)
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if headers != nil {
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for k, v := range headers {
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httpRequest.Header.Add(k, v)
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}
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}
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httpClient := &http.Client{}
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// 发送请求
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resp, err := httpClient.Do(httpRequest)
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if err != nil {
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panic(err)
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}
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defer func(Body io.ReadCloser) {
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_ = Body.Close()
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}(resp.Body)
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response, _ := io.ReadAll(resp.Body)
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return string(response)
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}
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func getReader(reqParams map[string]string, contentType string, files []UploadFile) (io.Reader, string) {
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if strings.Index(contentType, "json") > -1 {
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bytesData, _ := json.Marshal(reqParams)
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return bytes.NewReader(bytesData), contentType
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} else if files != nil {
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body := &bytes.Buffer{}
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// 文件写入 body
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writer := multipart.NewWriter(body)
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for _, uploadFile := range files {
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part, err := writer.CreateFormFile(uploadFile.Name, filepath.Base(uploadFile.Filepath))
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if err != nil {
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panic(err)
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}
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_, err = io.Copy(part, uploadFile.File)
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}
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// 其他参数列表写入 body
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for k, v := range reqParams {
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if err := writer.WriteField(k, v); err != nil {
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panic(err)
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}
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}
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if err := writer.Close(); err != nil {
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panic(err)
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}
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// 上传文件需要自己专用的contentType
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return body, writer.FormDataContentType()
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} else {
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urlValues := url.Values{}
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for key, val := range reqParams {
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urlValues.Set(key, val)
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}
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reqBody := urlValues.Encode()
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return strings.NewReader(reqBody), contentType
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}
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}
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