背景在1688有个功能，就是上传图片，就可以找到类似的商品。如下 
网址 ：https://www.1688.com/ 这时候，我们可以使用程序来代替，大批量的完成图片上传功能。 实现思路1、找到图片上传接口
post请求，form表单中有signature签名
2、再找sign生成接口，全局搜素找一下signature，发现了一个返回signature的接口。
接口链接：https://open-s.1688.com/openservice/ossDataService
这个接口也有一个变动的参数 appKey
全局搜索后在js文件中查看一下
往下找就可以发现appkey的生成了。
通过debug来查看生成规则。
获取加密时间的接口：https://open-s.1688.com/openservice/.htm?
参数：outfmt =json&serviceIds=cbu.searchweb.config.system.currenttime
需要先请求这个接口，获取加密时间。 private void go(string parhfile) { var response = HttpHelper.CreateGetHttpResponse('https://open-s.1688.com/openservice/.htm?serviceIds=cbu.searchweb.config.system.currenttime&outfmt=json', 5000, null, null); Stream myResponseStream = response.GetResponseStream(); StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding('utf-8')); string retString = myStreamReader.ReadToEnd(); myStreamReader.Close(); myResponseStream.Close(); if (response.StatusCode == HttpStatusCode.OK) { var ss = JsonConvert.DeserializeObject<Currenttimemodel>(retString.Replace('cbu.searchweb.config.system.currenttime', 'currenttime')); // SetText('加密时间:' + ss.currenttime.dataSet.ToString()); getsin(ss.currenttime.dataSet.ToString(), parhfile); } else { SetText('错误代码：' + response.StatusCode.ToString()); } }
再把时间和appName 传入 getAppKey。
然后e= “appname ; t” ，appName的base64编码之后的结果是 “cGNfdHVzb3U=”
 经过encode64返回 i ( appkey)
然后通过上面生成sign的接口：https://open-s.1688.com/openservice/ossDataService 传入参数就行请求，就可以返回signature，policy，accessid。 params = {
'appName': key,
'appKey': base64.b64encode(appkey.encode('utf-8')),
}
/// <summary> /// sign生成接口 /// </summary> /// <param name='dataSet'></param> private void getsin(string dataSet, string parhfile) { string appName = 'pc_tusou'; //getAppKey string appKey = Base64.EncodeBase64('utf-8', appName + ';' + dataSet.ToString()); var response = HttpHelper.CreateGetHttpResponse('https://open-s.1688.com/openservice/ossDataService?appName=' + appName + '&appKey=' + appKey, 5000, null, null); Stream myResponseStream = response.GetResponseStream(); StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding('utf-8')); string retString = myStreamReader.ReadToEnd(); myStreamReader.Close(); myResponseStream.Close(); if (response.StatusCode == HttpStatusCode.OK) { var ss = JsonConvert.DeserializeObject<Rootsin>(retString); // SetText('sign:' + ss.data.signature); string key = 'cbuimgsearch/' + Base64.Getimgname() + Base64.GetTimeStamp() + '.jepg'; var client = new RestClient('https://cbusearch.oss-cn-shanghai./'); client.Timeout = -1; var request = new RestRequest(Method.POST); request.AddHeader('Origin', 'https://www.1688.com'); client.UserAgent = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36'; request.AddHeader('Accept', '*/*'); request.AddHeader('Cache-Control', 'no-cache'); request.AddHeader('cookie', '_samesite_flag_=true; _tb_token_=ee5138b911917; cookie2=163f6e3722351213514df4c9ab9116f6; t=96e8d0ab6d636f19306c429b276db552; __cn_logon__=false; ali_ab=120.253.224.246.1587973275662.6; l=caJGIJNTkgnFkWiGkSYyeKDwPQuOAiFJdcPgDahIhDlFGpKMvULclIQGPBDmDhmDdCsLYIU; na=ijBRbdRXZeKwRcTHilfNHSt+; '); request.AddHeader('refer', 'https://www.1688.com/'); request.AddParameter('name', Base64.Getname() + '.jpeg'); request.AddParameter('key', key); request.AddParameter('OSSAccessKeyId', ss.data.accessid); request.AddParameter('callback', ''); request.AddParameter('policy', ss.data.policy); request.AddParameter('signature', ss.data.signature); request.AddParameter('success_action_status', '200'); request.AddFile('file', parhfile); IRestResponse response2 = client.Execute(request); Console.WriteLine(response2.Content); if (response2.StatusCode == HttpStatusCode.OK) { string picurl = 'https://s.1688.com/youyuan/index.htm?tab=imageSearch&imageType=oss&imageAddress=' + key + '&spm='; SetText3('\r\n' + picurl); Write(picurl); } else { SetText('错误代码：' + response2.StatusCode.ToString()); } } else { SetText('错误代码：' + response.StatusCode.ToString()); } }
3、数据详情接口
图片上传之后，返回的数据接口：
https://search.1688.com/service/imageSearchOfferResultViewService?
参数：
imageAddress是在上传图片之后返回的值
requestId 初始化参数，可以为空。
整个流程就是这样了，接着构造请求就可以获取数据了。
完整代码using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.IO;using System.Linq;using System.Net;using System.Net.Http;using System.Net.Http.Headers;using System.Net.Security;using System.Security.Cryptography.X509Certificates;using System.Text;using System.Threading;using System.Threading.Tasks;using System.Windows.Forms;using Newtonsoft.Json;using Reptiles1688;using RestSharp;
namespace WindowsFormsApp1{ public partial class Form1 : Form { public Form1() { InitializeComponent(); }
private void button1_Click(object sender, EventArgs e) { ThreadPool.QueueUserWorkItem(new WaitCallback(crawlingWeb), 'test'); }
public void Write(string s) { string path = System.Environment.CurrentDirectory + '\\图片url\\' + Guid.NewGuid().ToString(); if (!Directory.Exists(path)) Directory.CreateDirectory(path); FileStream fs = new FileStream(path + '\\data.txt', FileMode.Create); //获得字节数组 byte[] data = System.Text.Encoding.Default.GetBytes(s); //开始写入 fs.Write(data, 0, data.Length); //清空缓冲区、关闭流 fs.Flush(); fs.Close(); }
private delegate void SetLabelDelegate(string value);
private void SetText(string value) { if (this.InvokeRequired) { SetLabelDelegate d = new SetLabelDelegate(SetText); this.Invoke(d, new object[] { value }); } else { textBox1.Text = value.ToString() + textBox1.Text; } }
private delegate void SetLabelDelegate3(string value);
private void SetText3(string value) { if (this.InvokeRequired) { SetLabelDelegate3 d = new SetLabelDelegate3(SetText3); this.Invoke(d, new object[] { value }); } else { textBox3.Text = value.ToString() + textBox3.Text; } }
private void crawlingWeb(object data) { for (int aa = 1; aa < 50; aa++) { // SetText3(aa.ToString()); for (int a = 1; a < 4; a++) { string ss = 'D:\\pppppppppppppp\\' + a + '.jpg'; // SetText3(aa.ToString() + '-' + a);
go(ss); Thread.Sleep(500); } }
SetText3('\r\n ok'); }
private void go(string parhfile) { var response = HttpHelper.CreateGetHttpResponse('https://open-s.1688.com/openservice/.htm?serviceIds=cbu.searchweb.config.system.currenttime&outfmt=json', 5000, null, null); Stream myResponseStream = response.GetResponseStream(); StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding('utf-8')); string retString = myStreamReader.ReadToEnd(); myStreamReader.Close(); myResponseStream.Close(); if (response.StatusCode == HttpStatusCode.OK) { var ss = JsonConvert.DeserializeObject<Currenttimemodel>(retString.Replace('cbu.searchweb.config.system.currenttime', 'currenttime')); // SetText('加密时间:' + ss.currenttime.dataSet.ToString()); getsin(ss.currenttime.dataSet.ToString(), parhfile); } else { SetText('错误代码：' + response.StatusCode.ToString()); } }
/// <summary> /// sign生成接口 /// </summary> /// <param name='dataSet'></param> private void getsin(string dataSet, string parhfile) { string appName = 'pc_tusou'; //getAppKey string appKey = Base64.EncodeBase64('utf-8', appName + ';' + dataSet.ToString()); var response = HttpHelper.CreateGetHttpResponse('https://open-s.1688.com/openservice/ossDataService?appName=' + appName + '&appKey=' + appKey, 5000, null, null); Stream myResponseStream = response.GetResponseStream(); StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding('utf-8')); string retString = myStreamReader.ReadToEnd(); myStreamReader.Close(); myResponseStream.Close(); if (response.StatusCode == HttpStatusCode.OK) { var ss = JsonConvert.DeserializeObject<Rootsin>(retString); // SetText('sign:' + ss.data.signature); string key = 'cbuimgsearch/' + Base64.Getimgname() + Base64.GetTimeStamp() + '.jepg'; var client = new RestClient('https://cbusearch.oss-cn-shanghai./'); client.Timeout = -1; var request = new RestRequest(Method.POST); request.AddHeader('Origin', 'https://www.1688.com'); client.UserAgent = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36'; request.AddHeader('Accept', '*/*'); request.AddHeader('Cache-Control', 'no-cache'); request.AddHeader('cookie', '_samesite_flag_=true; _tb_token_=ee5138b911917; cookie2=163f6e3722351213514df4c9ab9116f6; t=96e8d0ab6d636f19306c429b276db552; __cn_logon__=false; ali_ab=120.253.224.246.1587973275662.6; l=caJGIJNTkgnFkWiGkSYyeKDwPQuOAiFJdcPgDahIhDlFGpKMvULclIQGPBDmDhmDdCsLYIU; na=ijBRbdRXZeKwRcTHilfNHSt+; '); request.AddHeader('refer', 'https://www.1688.com/'); request.AddParameter('name', Base64.Getname() + '.jpeg'); request.AddParameter('key', key); request.AddParameter('OSSAccessKeyId', ss.data.accessid); request.AddParameter('callback', ''); request.AddParameter('policy', ss.data.policy); request.AddParameter('signature', ss.data.signature); request.AddParameter('success_action_status', '200'); request.AddFile('file', parhfile); IRestResponse response2 = client.Execute(request); Console.WriteLine(response2.Content); if (response2.StatusCode == HttpStatusCode.OK) { string picurl = 'https://s.1688.com/youyuan/index.htm?tab=imageSearch&imageType=oss&imageAddress=' + key + '&spm='; SetText3('\r\n' + picurl); Write(picurl); } else { SetText('错误代码：' + response2.StatusCode.ToString()); } } else { SetText('错误代码：' + response.StatusCode.ToString()); } } }}
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