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- CSDN专家-showbo 2022-01-09 23:33关注
需要POST请求:https://b2b.10086.cn/b2b/main/listVendorNoticeResult.html?noticeBean.noticeType=2
参数:page.currentPage=1&page.perPageSize=20¬iceBean.sourceCH=¬iceBean.source=¬iceBean.title=¬iceBean.startDate=¬iceBean.endDate=&_qt=mY3E2NU2N5MmM0UWNygDM4ATY0EDZ2MjM3YjMjZDN3Q示例代码如下
using System; using System.Text; using System.Net; using System.Text.RegularExpressions; using System.IO; namespace ConsoleApp2 { class Program { static void Main(string[] args) { var url = "https://b2b.10086.cn/b2b/main/listVendorNoticeResult.html?noticeBean.noticeType=2"; var req = (HttpWebRequest)HttpWebRequest.Create(url); req.Method = "post"; req.ContentType = "application/x-www-form-urlencoded; charset=UTF-8"; //下面3个头必须 req.Referer = "https://b2b.10086.cn/b2b/main/listVendorNotice.html?noticeType=2"; req.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36 Edg/97.0.1072.55"; req.Headers.Add("cookie", "JSESSIONID=B3155698F7F1CF723C2F9E03CB29CDB7"); var s = "page.currentPage=1&page.perPageSize=20¬iceBean.sourceCH=¬iceBean.source=¬iceBean.title=¬iceBean.startDate=¬iceBean.endDate=&_qt=mY3E2NU2N5MmM0UWNygDM4ATY0EDZ2MjM3YjMjZDN3Q"; var data = Encoding.UTF8.GetBytes(s); req.ContentLength = data.Length; var io = req.GetRequestStream(); io.Write(data,0,data.Length); io.Flush(); var resp = (HttpWebResponse)req.GetResponse(); io = resp.GetResponseStream(); var sr = new StreamReader(io); s = sr.ReadToEnd(); io.Close(); var re = new Regex("selectResult\\('\\d+'\\)\">" + "\\s+<td[^>]+>([\\s\\S]+?)</td>" + "\\s+<td[^>]+>([\\s\\S]+?)</td>" + "\\s+<td[^>]+>([\\s\\S]+?)</td>" + "\\s+<td[^>]+>([\\s\\S]+?)</td>\\s*</tr>", RegexOptions.Compiled | RegexOptions.IgnoreCase); var reTitle = new Regex("title=\"([^\"]+)\"", RegexOptions.Compiled | RegexOptions.IgnoreCase); var reConent = new Regex("<a[^>]+>([\\s\\S]+?)</a>", RegexOptions.Compiled | RegexOptions.IgnoreCase); MatchCollection mc = re.Matches(s); foreach (Match m in mc) { string title = m.Groups[3].Value; title = (title.Contains("title=\"")?reTitle:reConent).Match(title).Groups[1].Value; Console.WriteLine(m.Groups[1].Value.Trim() + "\t" + m.Groups[2].Value.Trim() + "\t" + title.Trim() + "\t" + m.Groups[4].Value.Trim()); Console.WriteLine(); } Console.Read(); } } }
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