/// <summary>
/// 写入新内容，若是存在就不写入
/// </summary>
/// <param name="model"></param>
public void Add(CrawlerEntity model)
{
using (LiGatherContext db = new LiGatherContext())
{
if (!db.CrawlerEntities.Any(t => t.搜索名称.Equals(model.搜索名称)))
{
db.CrawlerEntities.Add(model);
db.SaveChanges();
}
}
}
/// <summary>
/// 生成策略
/// </summary>
/// <param name="fillModel">数据容器</param>
/// <param name="appendEntity">补充用数据容器</param>
/// <returns></returns>
private CrawlerEntity StrategyNo1(CrawlerEntity fillModel, CrawlerEntity appendEntity)
{
fillModel.搜索名称 = appendEntity.搜索名称;
fillModel.TaskGuid = appendEntity.TaskGuid;
fillModel.操作人姓名 = appendEntity.操作人姓名;
fillModel.名称 = string.IsNullOrWhiteSpace(fillModel.名称) ? appendEntity.名称 : fillModel.名称;
fillModel.入爬行库时间 = appendEntity.入爬行库时间;
fillModel.爬行更新时间 = DateTime.Now;
if (!string.IsNullOrWhiteSpace(fillModel.注册资本))
{
var split = fillModel.注册资本?.Split(' ');
if (split.Length > 0)
{
fillModel.注册资本 = split[0].Trim();
fillModel.实收资本 = fillModel.实收资本?.Split(' ')[0];
fillModel.实缴出资金额 = fillModel.实缴出资金额?.Split(' ')[0];
}
if (split.Length > 1)
{
fillModel.资金单位 = split[1].Trim();
}
if (split.Length > 2)
{
fillModel.币种 = split[2].Trim();
}
}
return fillModel;
}
/// <summary>
/// 生成抓取的充血模型
/// </summary>
/// <param name="scoreList"></param>
/// <returns></returns>
private CrawlerEntity FillModel(List<string> scoreList)
{
var model = new CrawlerEntity();
var info = model.GetType().GetProperties();
foreach (var item in info)
{
var name = item.Name;
var index = scoreList.FindIndex(c => c.Equals(name));
if (index < 0)
continue;
item.SetValue(model, scoreList[index + 1], null);
//if (item.PropertyType == typeof(DateTime?))
// item.SetValue(model, Conv.ToDateOrNull(scoreList[index + 1]), null);
//else
// item.SetValue(model, scoreList[index + 1], null);
}
return model;
}
/// <summary>
/// 因为异常或者没有检索到值 执行空插入
/// </summary>
private void AddNull(CrawlerEntity targetModel)
{
new CrawlerDomain().Add(targetModel);
Console.WriteLine("{0} 空对象：{1}", Task.CurrentId, targetModel.搜索名称);
}
/// <summary>
/// 单个查询
/// </summary>
/// <param name="companyName"></param>
public void SingelSearch(string companyName)
{
var httpClient = new HttpClient();
httpClient.Setting.Timeout = 1000 * 5;
httpClient.Create<string>(HttpMethod.Post, firsturl).Send();
while (true)
{
var targetModel = new CrawlerEntity { 搜索名称 = companyName, 操作人姓名 = TaskEntity.OperatorName, 入爬行库时间 = TaskEntity.CreateTime, TaskGuid = TaskEntity.Unique };
try
{
//IP处理
var proxyEntity = new ProxyDomain().GetByRandom(); //代理IP
if (proxyEntity == null)
{
Console.WriteLine("在线代理临时获取策略启动。");
proxyEntity = Proxy.Proxy.GetInstance().GetHttProxyEntity();
Console.WriteLine("线上获取到了代理：{0}:{1}", proxyEntity.IpAddress, proxyEntity.Port);
}
httpClient.Setting.Proxy = new WebProxy(proxyEntity.IpAddress, proxyEntity.Port);
var resultBody = httpClient.Create<string>(HttpMethod.Post, targetUrl, data: new
{
queryStr = targetModel.搜索名称,
module = "",
idFlag = "qyxy"
}).Send();
if (!resultBody.IsValid())
{
RemoveOldIp(proxyEntity);
continue;
}
if (ValidText(resultBody.Result))
{
RemoveOldIp(proxyEntity);
continue;
}
//提取二级连接
var parser = new JumonyParser();
var urls = parser.Parse(resultBody.Result).Find("li a").ToList();
var nextUrl = "";
if (urls.Count < 1)
{
AddNull(targetModel);
break;
}
foreach (var htmlElement in urls)
{
targetModel.名称 = htmlElement.InnerText();
nextUrl = url + htmlElement.Attribute("href").AttributeValue;
}
//提取目标正文
var resultsecondBody =
httpClient.Create<string>(HttpMethod.Get, zhuUrl + new Uri(firsturl + nextUrl).Query).Send();
var nameValueCollection =
new NameValueCollection(URL.GetQueryString(new Uri(firsturl + nextUrl).Query));
if (!resultsecondBody.IsValid())
{
RemoveOldIp(proxyEntity);
continue;
}
if (ValidText(resultsecondBody.Result))
{
RemoveOldIp(proxyEntity);
continue;
}
//正文处理
var sorceIhtml = new JumonyParser().Parse(resultsecondBody.Result.Replace("<th", "<td"));
var tableLists = sorceIhtml.Find("table[class='f-lbiao']").ToList();
var listall = new List<string>();
foreach (var tableList in tableLists)
tableList.Find("tr td")
.ForEach(t => listall.Add(t.InnerText().TrimEnd(':').TrimEnd('：').Trim()));
var fillModel = FillModel(listall);
fillModel.全局唯一编号 = nameValueCollection["reg_bus_ent_id"].ToUpper();
new CrawlerDomain().Add(StrategyNo1(fillModel, targetModel));
//后续其他处理 包括了IP使用状态，以查询列表状态
proxyEntity.Usage = proxyEntity.Usage + 1;
new ProxyDomain().Update(proxyEntity);
Console.WriteLine("{0} 抓取到：{1}", Task.CurrentId, targetModel.搜索名称);
}
catch (Exception e)
{
new LogDomain().Add(new LogEntity { LogType = "error", TaskName = TaskEntity.TaskName, ErrorDetails = Task.CurrentId + "线程： " + e.Message, Details = e.ToString(), TriggerTime = DateTime.Now });
continue;
}
break;
}
}
