1111—WebService上传文件调用

一、httpRequest上传文件到WebService  

      场景：隆道云上传接口，文件类型Excel。

      1—Java调用      

CloseableHttpClient httpclient = HttpClients.createDefault();
HttpPost httppost = new HttpPost("http://127.0.0.1:8080/ecg/api");
String secret = "666";
String timestampNum=System.currentTimeMillis()+"";
List<String> paramNames = new ArrayList();
paramNames.add("name");
paramNames.add("appkey");
        paramNames.add("version");
        paramNames.add("timestamp");
        paramNames.add("projectCode");
        Collections.sort(paramNames);
        Map<String,String> valueMap = new HashMap();
        valueMap.put("name", "longdaoyun.ecg.bidding.uploadBusinessFile");
        valueMap.put("appkey", "sbwcd");
        valueMap.put("version", "1.0");
        valueMap.put("timestamp",timestampNum);
        valueMap.put("projectCode", "ZB2019091200004");
        StringBuilder paramNameValue = new StringBuilder();
        for (String paramName : paramNames) {
            paramNameValue.append(paramName).append(valueMap.get(paramName));
        }
//签名
        String source = secret + paramNameValue.toString() + secret;
        String signatures = DigestUtils.md5DigestAsHex(source.getBytes()).toUpperCase();
//body字段初始化
FileBody bin = new FileBody(new File("C:/picture.jpg"));
StringBody name = new StringBody("longdaoyun.ecg.bidding.uploadBusinessFile", ContentType.TEXT_PLAIN);
        StringBody appkey = new StringBody("sbwcd", ContentType.TEXT_PLAIN);
        StringBody version = new StringBody("1.0", ContentType.TEXT_PLAIN);
        StringBody timestamp = new StringBody(timestampNum, ContentType.TEXT_PLAIN);
        StringBody projectCode = new StringBody("ZB2019091200004", ContentType.TEXT_PLAIN);
        StringBody signature = new StringBody(signatures, ContentType.TEXT_PLAIN);
        HttpEntity reqEntity = MultipartEntityBuilder.create()
                .addPart("file", bin)
                .addPart("name", name)
                .addPart("appkey",appkey)
                .addPart("version",version)
                .addPart("timestamp",timestamp)
                .addPart("projectCode",projectCode)
                .addPart("signature",signature)
                .build();

        httppost.setEntity(reqEntity);
        System.out.println("executing request " + httppost.getRequestLine());
        CloseableHttpResponse response = httpclient.execute(httppost);
        try {
            System.out.println(response.getStatusLine());
            HttpEntity resEntity = response.getEntity();
            if (resEntity != null) {
                String responseEntityStr = EntityUtils.toString(response.getEntity());
                System.out.println(responseEntityStr);
                System.out.println("Response content length: " + resEntity.getContentLength());
            }
            EntityUtils.consume(resEntity);
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                httpclient.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

二—request报文显示        

------WebKitFormBoundarycbavurKIOh70o0r4 
	Content-Disposition: form-data; name="file"; filename="G2020102200014.txt" 
	Content-Type: text/plain 
------WebKitFormBoundarycbavurKIOh70o0r4 
	Content-Disposition: form-data; name="name" 
	longdaoyun.ecg.purchase.uploadProjectFile 
------WebKitFormBoundarycbavurKIOh70o0r4 
	Content-Disposition: form-data; name="version" 1.0 
------WebKitFormBoundarycbavurKIOh70o0r4 
	Content-Disposition: form-data; name="appkey" ajyl 
------WebKitFormBoundarycbavurKIOh70o0r4 
	Content-Disposition: form-data; name="projectCode" G2020102200014 
------WebKitFormBoundarycbavurKIOh70o0r4 
	Content-Disposition: form-data; name="timestamp" 1604020026384 
------WebKitFormBoundarycbavurKIOh70o0r4 
	Content-Disposition: form-data; name="signature" 7DDF2BFC723EE3A85FDAF0DA3B9B9C13 

------WebKitFormBoundarycbavurKIOh70o0r4--

三—C#代码  

request = (HttpWebRequest)WebRequest.Create(this._url);
            //CookieContainer cookieContainer = new CookieContainer();
            //request.CookieContainer = cookieContainer;
            //request.AllowAutoRedirect = true;
            //request.MaximumResponseHeadersLength = 1024;
            //request.MaximumAutomaticRedirections = 1;
            
            request.Method = "POST";            
            //把用户传过来的数据转成UTF-8字节流
            
            string boundary = DateTime.Now.Ticks.ToString("X");            
            request.ContentType = "multipart/form-data;charset=utf-8;boundary=----WebKitFormBoundary"+boundary;

            //组装body
            byte[] itemBoundaryBytes = Encoding.UTF8.GetBytes("\r\n------WebKitFormBoundary" + boundary + "\r\n");
            byte[] endBoundaryBytes = Encoding.UTF8.GetBytes("\r\n------WebKitFormBoundary" + boundary + "--\r\n");
            //请求头部
            StringBuilder sbHeader = new StringBuilder(string.Format("Content-Disposition:form-data;name=\"file\";filename=\"{0}\"\r\nContent-Type:application/octet-stream\r\n\r\n", fileName));
            StringBuilder sbHeader2 = new StringBuilder(string.Format("Content-Disposition:form-data;name=\"{0}\"\r\n\r\n","name"));
            byte[] sbHeaderBytes = Encoding.UTF8.GetBytes(sbHeader.ToString());
            byte[] sbHeader2Bytes = Encoding.UTF8.GetBytes(sbHeader2.ToString());
            FileStream fs = new FileStream(filePath +"\\"+ fileName, FileMode.Open, FileAccess.Read);
            byte[] bArr=new byte[fs.Length];
            fs.Read(bArr, 0, bArr.Length);
            fs.Close();

            try
            {
                Stream postStream = request.GetRequestStream();
                postStream.Write(itemBoundaryBytes, 0, itemBoundaryBytes.Length);
                postStream.Write(sbHeaderBytes, 0, sbHeaderBytes.Length);
                postStream.Write(bArr, 0, bArr.Length);
                
                postStream.Write(itemBoundaryBytes, 0, itemBoundaryBytes.Length);
                postStream.Write(sbHeader2Bytes, 0, sbHeader2Bytes.Length);
                byte[] nameByt=Encoding.UTF8.GetBytes(this._param.name);
                postStream.Write(nameByt, 0, nameByt.Length);

                postStream.Write(itemBoundaryBytes, 0, itemBoundaryBytes.Length);
                byte[] header3 = Encoding.UTF8.GetBytes(string.Format("Content-Disposition:form-data;name=\"{0}\"\r\n\r\n", "version"));
                postStream.Write(header3, 0, header3.Length);
                byte[] versionByt = Encoding.UTF8.GetBytes(this._param.version);
                postStream.Write(versionByt, 0, versionByt.Length);

                postStream.Write(itemBoundaryBytes, 0, itemBoundaryBytes.Length);
                byte[] header4 = Encoding.UTF8.GetBytes(string.Format("Content-Disposition:form-data;name=\"{0}\"\r\n\r\n", "appkey"));
                postStream.Write(header4, 0, header4.Length);
                byte[] appkeyByt = Encoding.UTF8.GetBytes(this._param.appkey);
                postStream.Write(appkeyByt, 0, appkeyByt.Length);

                postStream.Write(itemBoundaryBytes, 0, itemBoundaryBytes.Length);
                byte[] header5 = Encoding.UTF8.GetBytes(string.Format("Content-Disposition:form-data;name=\"{0}\"\r\n\r\n", "projectCode"));
                postStream.Write(header5, 0, header5.Length);
                byte[] projectByt = Encoding.UTF8.GetBytes(this._param.projectCode);
                postStream.Write(projectByt, 0, projectByt.Length);

                postStream.Write(itemBoundaryBytes, 0, itemBoundaryBytes.Length);
                byte[] header6 = Encoding.UTF8.GetBytes(string.Format("Content-Disposition:form-data;name=\"{0}\"\r\n\r\n", "timestamp"));
                postStream.Write(header6, 0, header6.Length);
                byte[] timeByt = Encoding.UTF8.GetBytes(this._param.timestamp);
                postStream.Write(timeByt, 0, timeByt.Length);

                postStream.Write(itemBoundaryBytes, 0, itemBoundaryBytes.Length);
                byte[] header7 = Encoding.UTF8.GetBytes(string.Format("Content-Disposition:form-data;name=\"{0}\"\r\n\r\n", "signature"));
                postStream.Write(header7, 0, header7.Length);
                byte[] signByt = Encoding.UTF8.GetBytes(this._param.signature);
                postStream.Write(signByt, 0, signByt.Length);

                postStream.Write(endBoundaryBytes, 0, endBoundaryBytes.Length);
                postStream.Close();

                response = (HttpWebResponse)request.GetResponse();
                StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
                string returnXml = reader.ReadToEnd();    //利用StreamReader就可以从响应内容从头读到尾
                reader.Close();

                result = JsonConvert.DeserializeObject<CommonAsset.replyResult>(returnXml);

            }
            catch (WebException ex)
            {
                this._error = "[ HttpPost_webERR ]" + ex.Message;
            }
            catch (Exception ex) {
                this._error = "[ HttpPost_ERR ]" + ex.Message;
            
            }