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127 lines
3.2 KiB
127 lines
3.2 KiB
package common
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import (
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"bytes"
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"encoding/json"
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"io"
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"io/ioutil"
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"mime/multipart"
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"net/http"
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"net/url"
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"os"
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"path/filepath"
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"strings"
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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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// 文件全路径
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Filepath string
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}
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// 请求客户端
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var httpClient = &http.Client{}
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func Get(reqUrl string, reqParams map[string]string, headers map[string]string) string {
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urlParams := url.Values{}
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Url, _ := url.Parse(reqUrl)
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for key, val := range reqParams {
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urlParams.Set(key, val)
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}
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//如果参数中有中文参数,这个方法会进行URLEncode
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Url.RawQuery = urlParams.Encode()
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// 得到完整的url，http://xx?query
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urlPath := Url.String()
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httpRequest,_ := http.NewRequest("GET", urlPath, nil)
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// 添加请求头
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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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// 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 resp.Body.Close()
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response, _ := ioutil.ReadAll(resp.Body)
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return string(response)
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}
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func PostForm(reqUrl string, reqParams map[string]string, headers map[string]string) string {
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return post(reqUrl, reqParams, "application/x-www-form-urlencoded", nil, headers)
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}
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func PostJson(reqUrl string, reqParams map[string]string, headers map[string]string) string {
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return post(reqUrl, reqParams, "application/json", nil, headers)
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}
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func PostFile(reqUrl string, reqParams map[string]string, files []UploadFile, headers map[string]string) string {
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return post(reqUrl, reqParams, "multipart/form-data", files, headers)
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}
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func post(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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// 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 resp.Body.Close()
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response, _ := ioutil.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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file, err := os.Open(uploadFile.Filepath)
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if err != nil {
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panic(err)
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}
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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, file)
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file.Close()
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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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