JAVA后端上传图片至企微暂时素材

WijgmVR · 发表于 2024-2-29 15:27:44

1.使用场景

正在使用企业微疑API交心中，常常开辟者需要使用自界说的资本，好比收收当地图片消息，树立通信录自界说头像等。
为了完毕统一资本文献，一次上传能够屡次使用，那里供给了艳材办理交心：以media_id去标记资本文献，完毕文献的上传取下载。
以收收消息为示例：

以JSSDK选图片上传为示例：

上传的媒介文献限定
统统文献size必需年夜于5个字节

仅撑持

HTTP上传文献办法简析

HTTP是文原和谈，若需要通报两退造文献需要依靠于multipart/form-data格局
1.结构 HTTP恳求包

单个文献的multipart/form-data格局，以下：

--分开符[换止]
Content-Disposition: form-data; name="表单名"; filename="文献名"; filelength=文献实质巨细[换止]
Content-Type: 范例[换止][换止]
文献的两退造实质[换止]--分开符--

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Content-Type按照差别文献范例能够树立对于应差别的值，以下表格：

文献范例	Content-Type
一般文献	application/octet-stream
jpg图片	image/jpg
png图片	image/png
bmp图片	image/bmp
amr音频	voice/amr
mp4望频	video/mp4

若咱们树立：分开符为acebdf13572468，文献名为wework.txt，文献实质为mytext，因为上传临时艳材请求name牢固为media，那末机关的恳求实质为：

--acebdf13572468
Content-Disposition: form-data; name="media";filename="wework.txt"; filelength=6
Content-Type: application/octet-stream
mytext
--acebdf13572468--

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2. 树立HTTP头部疑息

POSTURLHTTP/1.1[换止]
Content-Type: multipart/form-data; boundary=分开符[换止]
Content-Length: 恳求体实质巨细[换止][换止]
第1步机关的恳求体实质

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假设咱们将第1步组拆的文献实质上传到企业微疑临时艳材，分开符与第1步设定值acebdf13572468，那末便获得以下：

POSThttps://qyapi.weixin.qq.com/cgi-bin/media/upload?access_token=accesstoken001&type=file HTTP/1.1
Content-Type: multipart/form-data; boundary=acebdf13572468
Content-Length:168--acebdf13572468
Content-Disposition: form-data; name="media";filename="wework.txt"; filelength=6
Content-Type: application/octet-stream
mytext
--acebdf13572468--

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上传临时艳材

艳材上传获得media_id，该media_id仅三天内乱有用
media_id正在统一企业内乱使用之间能够同享

**恳求方法：**POST（HTTPS）
**恳求地点：**https://qyapi.weixin.qq.com/cgi-bin/media/upload?access_token=ACCESS_TOKEN&type=TYPE
使用multipart/form-data POST上传文献，文献标记名为"media"
参数分析：

参数	必需	分析
access_token	是	挪用交心凭据
type	是	媒介文献范例，别离有图片（image）、语音（voice）、望频（video），一般文献（file）

POST的恳求包中，form-data中媒介文献标记，应包罗有 filename、filelength、content-type等疑息

filename标记文献展示的称呼。好比，使用该media_id收消息时，展示的文献名由该字段掌握

恳求示例：

POSThttps://qyapi.weixin.qq.com/cgi-bin/media/upload?access_token=accesstoken001&type=file HTTP/1.1
Content-Type: multipart/form-data; boundary=-------------------------acebdf13572468
Content-Length:220---------------------------acebdf13572468
Content-Disposition: form-data; name="media";filename="wework.txt"; filelength=6
Content-Type: application/octet-stream
mytext
---------------------------acebdf13572468--

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前去数据：

{"errcode":0,"errmsg":""，
"type":"image","media_id":"1G6nrLmr5EC3MMb_-zK1dDdzmd0p7cNliYu9V5w7o8K0","created_at":"1380000000"}

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参数分析：

参数	分析
type	媒介文献范例，别离有图片（image）、语音（voice）、望频（video），一般文献(file)
media_id	媒介文献上传后获得的唯一标记，3天内乱有用
created_at	媒介文献上传时间戳

上传企微临时艳材，对于应企微api文档链交：https://developer.work.weixin.qq.com/document/path/90253

2.掌握层交心

掌握层领受方法能够有文献方法领受，也能够前端用图片变换成base64格局字符串方法后端领受。
文献方法领受

@RequestMapping(method =RequestMethod.POST, value ="v1/uploadQwMedia")publicScaResponseParam<JSONObject>uploadQwMedia(String type,String title,int orgId,@RequestParam("file")MultipartFile file){try{if(file ==null){thrownewIllegalArgumentException("不上传图片");}if(StringUtils.isEmpty(type)){thrownewIllegalArgumentException("缺少type参数");}InputStream inputStream = file.getInputStream();FindMediaIdReq req =newFindMediaIdReq();
req.setTitle(title);//对于应企微api文档中的fileName参数，用于掌握展示的文献称呼
req.setType(type);//对于应企微api文档中的type参数String mediaId = scaGuideOneCustOneCodeService.uploadQwMedia(orgId, req, inputStream);returnScaResponseParam.OK().fluentSetData(newJSONObject().fluentPut("mediaId", mediaId));}catch(IllegalArgumentException e){
log.error(e.getMessage(), e);returnScaResponseParam.ERROR(e.getMessage());}catch(Exception e){
log.error("上传客户博属码到企微临时艳材非常:{}-{}",e.getMessage(), e);returnScaResponseParam.ERROR("上传客户博属码到企微临时艳材非常");}}

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base64方法领受

@RequestMapping(value ="/base64ImgUpload", method =RequestMethod.POST)publicScaResponseParam<JSONObject>base64ImgUpload(@RequestBodyOneCustOneCodeUploadQwImgRequest request){try{BASE64Decoder decoder =newBASE64Decoder();byte[] bytes = decoder.decodeBuffer(request.getBase64Str());for(int i =0; i < bytes.length;++i){if(bytes[i]<0){
bytes[i]+=256;}}int orgId = request.getOrgId();InputStream inputStream =newByteArrayInputStream(bytes);FindMediaIdReq req =newFindMediaIdReq();
req.setTitle(request.getTitle());//对于应企微api文档中的fileName参数，用于掌握展示的文献称呼
req.setType(request.getType());//对于应企微api文档中的type参数String mediaId = scaGuideOneCustOneCodeService.uploadQwMedia(orgId, req, inputStream);returnScaResponseParam.OK().fluentSetData(newJSONObject().fluentPut("mediaId", mediaId));}catch(IllegalArgumentException e){
log.error(e.getMessage(), e);returnScaResponseParam.ERROR(e.getMessage());}catch(Exception e){
log.error("base64上传客户博属码到企微临时艳材非常:{}-{}",e.getMessage(), e);returnScaResponseParam.ERROR("base64上传客户博属码到企微临时艳材非常");}}

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恳求参数OneCustOneCodeUploadQwImgRequest类

@Data@SuppressWarnings("all")publicclassOneCustOneCodeUploadQwImgRequest{@ApiModelProperty(value ="文献范例，图片为image", required =true)privateString type;@ApiModelProperty(value ="文献称呼", required =true)privateString title;@ApiModelProperty(value ="图片base64格局字符串", required =true)privateString base64Str;@ApiModelProperty(value ="orgId", required =true)privateint orgId;}

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4.Service层交心

@OverridepublicStringuploadQwMedia(Integer orgId,FindMediaIdReq reqBean,InputStream inputStream){Map<String,Object> map = qyWeiXinService.uploadMediaForKf(orgId, reqBean, inputStream);String mediaId = map.get("media_id").toString();String createdAt =DateUtil.date2Str(newDate(Long.valueOf(map.get("created_at").toString())*1000));
log.info("上传企微艳材前去，mediaId:{},createAt:{}", mediaId, createdAt);return mediaId;}

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qyWeiXinService中的uploadMediaForKf办法

@OverridepublicMap<String,Object>uploadMediaForKf(Integer orgId,FindMediaIdReq reqBean,InputStream inputStream){ScaQyWxBuConfig scaQyWxBuConfig =ScaQyWxBuConfig.getConfigByOrgId(orgId);//获得设置的secret战corpId等疑息if(scaQyWxBuConfig ==null){
log.error("客服企微参数设置为空, orgId:{}", orgId);thrownewRuntimeException("获得客服企微设置参数失利");}String accessToken =this.getKfAccessToken(scaQyWxBuConfig);//获得accessTokenString title = reqBean.getTitle();//挪用企微api上传图片文献到企微临时艳材returnWinXinMessageUtil.mediaUploadByInputStream(accessToken, inputStream, reqBean.getType(), title);}

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挪用企微api上传图片文献到企微临时艳材办法，对于应上面的WinXinMessageUtil.mediaUploadByInputStream办法

publicstaticMap<String,Object>mediaUploadByInputStream(String accessToken,InputStream inputStream,String type,String fileName){String upUrl ="https://qyapi.weixin.qq.com/cgi-bin/media/upload?access_token="+ accessToken +"&type="+ type;StringBuffer buffer =newStringBuffer();BufferedReader reader =null;try{URL urlObj =newURL(upUrl);HttpURLConnection con =(HttpURLConnection) urlObj.openConnection();
con.setRequestMethod("POST");// 以Post方法提接表单，默认get方法
con.setDoInput(true);
con.setDoOutput(true);
con.setUseCaches(false);// post方法不克不及使用慢存// 树立恳求头疑息
con.setRequestProperty("Connection","Keep-Alive");
con.setRequestProperty("Charset","UTF-8");// 树立鸿沟StringBOUNDARY="----------"+System.currentTimeMillis();
con.setRequestProperty("Content-Type","multipart/form-data; boundary="+BOUNDARY);// 恳求正文疑息StringBuilder sb =newStringBuilder();
sb.append("--");//必需多二讲线
sb.append(BOUNDARY);
sb.append("\r\n");
sb.append("Content-Disposition: form-data;name="media";filename=""+ fileName +""\r\n");
sb.append("Content-Type:application/octet-stream\r\n\r\n");byte[] head = sb.toString().getBytes("utf-8");//取得输出流OutputStream out =newDataOutputStream(con.getOutputStream());//输出表头
out.write(head);// 把文献已经流文献的方法拉进到url中DataInputStream in =newDataInputStream(inputStream);int bytes;byte[] bufferOut =newbyte[1024];while((bytes = in.read(bufferOut))!=-1){
out.write(bufferOut,0, bytes);}
in.close();//开头部门byte[] foot =("\r\n--"+BOUNDARY+"--\r\n").getBytes("utf-8");// 界说最初数据分开线
out.write(foot);
out.flush();
out.close();// 界说BufferedReader输出流去读与URL的照应InputStream conInputStream = con.getInputStream();
reader =newBufferedReader(newInputStreamReader(conInputStream));String line;while((line = reader.readLine())!=null){
buffer.append(line);}String result = buffer.toString();
log.warn("{}上传临时艳材成果:{}", fileName, result);Map<String,Object> map =JSON.parseObject(result,Map.class);if(!Objects.equals(map.get("errcode"),0)){thrownewIllegalArgumentException("上传临时艳材非常:"+ map.get("errmsg"));}return map;}catch(IOException e){
log.warn("上传临时艳材{}非常:{}-{}", fileName, e.getMessage(), e);thrownewIllegalArgumentException("上传临时艳材非常", e);}finally{try{if(reader !=null){
reader.close();}}catch(IOException e){
e.printStackTrace();}}}

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获得token的办法，对于应上面的getKfAccessToken办法
那里先从redis慢存获得，获得没有到再挪用企微api交心获得，能够按照理论情况截至通融。

privateStringgetKfAccessToken(ScaQyWxBuConfig scaQyWxBuConfig){String corpId = scaQyWxBuConfig.getCorpId();//从设置中获得的corpIdString secret = scaQyWxBuConfig.getSecretKf();//从设置中获得的secretif(StringUtils.isEmpty(corpId)||StringUtils.isEmpty(secret)){returnnull;}String key ="HYP_GUIDE_"+ corpId +"AccessToken"+ secret;//劣先从redis慢存中获得String accessToken = jedisCluster.get(key);if(StringUtils.isEmpty(accessToken)){//慢存中获得没有到再挪用企微api交心获得accessTokentry{
accessToken =WinXinMessageUtil.getAccessToken(corpId, secret);
jedisCluster.set(key, accessToken);
jedisCluster.expire(key,7000);//树立过时时间}catch(Exception e){
log.error(e.getMessage());}}return accessToken;}

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3.挪用企微api交心获得accessToken疑息，

对于应上面的WinXinMessageUtil.getAccessToken

publicstaticStringgetAccessToken(StringCorpID,StringSecret)throwsException{String access_token ="";CloseableHttpClient httpclient =HttpClients.createDefault();try{HttpGet httpGet =newHttpGet("https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid="+CorpID+"&corpsecret="+Secret);CloseableHttpResponse response1 = httpclient.execute(httpGet);JSONObject resultJsonObject;try{HttpEntity httpEntity = response1.getEntity();if(httpEntity !=null){try{BufferedReader bufferedReader =newBufferedReader(newInputStreamReader(httpEntity.getContent(),"UTF-8"),8*1024);StringBuilder entityStringBuilder =newStringBuilder();String line;while((line = bufferedReader.readLine())!=null){
entityStringBuilder.append(line);}//使用从HttpEntity中获得的String天生JsonObject
resultJsonObject =newJSONObject(entityStringBuilder.toString().trim());
access_token = resultJsonObject.get("access_token")+"";}catch(Exception e){
log.warn("获得企微token非常:{}-{}", e.getMessage(), e);}}}finally{
response1.close();}}finally{
httpclient.close();}return access_token;}

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