/// <summary>
/// 生成JSON区域数据
/// 1~3级区域
/// </summary>
/// <param name="level"></param>
public static void GenerateJsonArea(int level = 3)
{
if (level < 1 || level > 3)
{
Console.WriteLine("Error Level");
return;
}
List <RegionJsonModel> areaList;
using (var dbContext = new RegionDbContext())
{
var areaStatus = new List <int> {
1, 2, 3
};
var query = dbContext.Region.AsNoTracking()
.Where(a => areaStatus.Contains(a.Status) && a.IsDel == false)
.Select(a => new RegionJsonModel
{
Code = a.Code,
Name = a.Name,
ParentCode = a.ParentCode,
Level = a.Level
}).OrderBy(a => a.ParentCode).ThenBy(a => a.Code);
areaList = query.Where(a => a.Level == 1).ToList();
if (level > 1)
{
foreach (var area in areaList)
{
area.Children = query.Where(a => a.ParentCode == area.Code).ToList();
if (level == 2)
{
continue;
}
foreach (var areaChild in area.Children)
{
areaChild.Children = query.Where(a => a.ParentCode == areaChild.Code).ToList();
}
}
}
}
var currentPath = Environment.CurrentDirectory;
const string projectName = "NationRegion";
var projectIndex = currentPath.IndexOf(projectName, StringComparison.OrdinalIgnoreCase);
var jsonPath = Path.Combine(currentPath.Substring(0, projectIndex), projectName + "\\Data\\JsonRegion.json");
var setting = new JsonSerializerSettings
{
ContractResolver = new Newtonsoft.Json.Serialization.CamelCasePropertyNamesContractResolver()
};
var jsonAreaListStr = JsonConvert.SerializeObject(areaList, setting);
File.WriteAllText(jsonPath, jsonAreaListStr, Encoding.UTF8);
}
/// <summary>
/// 省市
/// </summary>
private static void GetProvince(string regionBaseUrl)
{
Console.WriteLine("省级获取开始");
//HtmlWeb htmlWeb = new HtmlWeb();
//htmlWeb.OverrideEncoding = Encoding.GetEncoding("GB2312");
//var doc = htmlWeb.Load(regionBaseUrl);
var htmlContent = WebHtmlHelper.GetHtmlContent(regionBaseUrl);
var htmlDoc = new HtmlDocument();
htmlDoc.LoadHtml(htmlContent);
var provinceTrs = htmlDoc.DocumentNode.SelectNodes("//tr[@class='provincetr']");
var regionList = new List <Region>();
foreach (var provinceTr in provinceTrs)
{
var provinceTdNodes = provinceTr.SelectNodes("td");
foreach (var provinceTd in provinceTdNodes)
{
var aNodes = provinceTd.SelectNodes("a");
if (aNodes == null || aNodes.Count == 0)
{
continue;
}
var provinceNode = aNodes.First();
var href = provinceNode.Attributes["href"].Value;
var code = GetCodeByHref(href);
if (string.IsNullOrEmpty(code))
{
continue;
}
var name = provinceNode.InnerText;
var region = new Region
{
Name = name.Trim(),
Code = code,
ParentCode = string.Empty,
Level = 1,
ChildNodeUrl = GetHrefFullUrl(regionBaseUrl, href),
Status = 1 // 使用
};
regionList.Add(region);
}
}
//710000 台湾省
//810000 香港特别行政区
//820000 澳门特别行政区
regionList.Add(new Region
{
Name = "台湾省",
Code = "71",
ParentCode = string.Empty,
Level = 1,
Status = 1 // 使用
});
regionList.Add(new Region
{
Name = "香港特别行政区",
Code = "81",
ParentCode = string.Empty,
Level = 1,
Status = 1 // 使用
});
regionList.Add(new Region
{
Name = "澳门特别行政区",
Code = "82",
ParentCode = string.Empty,
Level = 1,
Status = 1 // 使用
});
var i = 0;
using (var dbContext = new RegionDbContext())
{
regionList = regionList.OrderBy(r => r.Code).ToList();
foreach (var region in regionList)
{
if (dbContext.Region.Any(a => a.Code == region.Code))
{
Console.WriteLine($"Code:{region.Code},Name:{region.Name} 已存在");
continue;
}
dbContext.Region.Add(region);
i++;
}
dbContext.SaveChanges();
}
Console.WriteLine($"省级获取完毕:共 {regionList.Count}条,添加 {i}条");
GetCitys(regionList);
}
/// <summary>
/// 获取子级区域
/// </summary>
/// <param name="parentregionList"></param>
/// <param name="className"></param>
/// <returns></returns>
private static List <Region> GetRegions(List <Region> parentregionList, string className)
{
if (!parentregionList.Any())
{
return(new List <Region>());
}
var random = new Random();
var regionList = new List <Region>();
var addedCount = 0;
foreach (var parentRegion in parentregionList)
{
if (string.IsNullOrEmpty(parentRegion.ChildNodeUrl))
{
continue;
}
var htmlContent = WebHtmlHelper.GetHtmlContent(parentRegion.ChildNodeUrl);
var htmlDoc = new HtmlDocument();
htmlDoc.LoadHtml(htmlContent);
var regionTrs = htmlDoc.DocumentNode.SelectNodes("//tr[@class='" + className + "']");
var tempregionList = new List <Region>();
if (regionTrs == null)
{
var currentRegion = new Region
{
ParentCode = parentRegion.Code,
Level = parentRegion.Level + 1,
Name = parentRegion.Name,
Code = parentRegion.Code + "00",
ChildNodeUrl = parentRegion.ChildNodeUrl,
Status = 3 //没有该级区域，手动维护的
};
if (tempregionList.Any(a => a.Code == currentRegion.Code))
{
continue;
}
tempregionList.Add(currentRegion);
}
else
{
foreach (var regionTr in regionTrs)
{
var regionTds = regionTr.SelectNodes("td");
var regions = regionTds[1].SelectNodes("a");
var currentRegion = new Region
{
ParentCode = parentRegion.Code,
Level = parentRegion.Level + 1,
Status = 1
};
var name = regionTds[1].InnerText.Trim();
if (regions == null)
{
var aCode = regionTds[0].InnerText.TrimEnd('0');
if (aCode.Length % 2 != 0)
{
aCode += "0";
}
currentRegion.Name = name;
currentRegion.Code = aCode;
currentRegion.Status = 0;//不使用
tempregionList.Add(currentRegion);
continue;
}
var region = regions[0];
name = region.InnerText.Trim();
if (name == "市辖区")
{
name = parentRegion.Name;
currentRegion.Status = 2;//改名了，直辖市 的二级区域 从市辖区 改为父级名称
}
var href = region.Attributes["href"].Value;
var code = GetCodeByHref(href);
currentRegion.Name = name;
currentRegion.Code = code;
currentRegion.ChildNodeUrl = GetHrefFullUrl(parentRegion.ChildNodeUrl, href);
if (tempregionList.Any(a => a.Code == currentRegion.Code))
{
continue;
}
tempregionList.Add(currentRegion);
}
}
using (var dbContext = new RegionDbContext())
{
tempregionList = tempregionList.OrderBy(r => r.Code).ToList();
foreach (var region in tempregionList)
{
if (dbContext.Region.Any(a => a.Code == region.Code))
{
Console.WriteLine($"Code:{region.Code},Name:{region.Name} 已存在");
continue;
}
dbContext.Region.Add(region);
addedCount++;
}
parentRegion.IsGetChild = true;
dbContext.Region.Update(parentRegion);
dbContext.SaveChanges();
}
regionList.AddRange(tempregionList);
var sleepTime = random.Next(500, 800) + parentRegion.Level * 60;
Thread.Sleep(sleepTime);
}
Console.WriteLine($"共 {regionList.Count}条,添加 {addedCount}条");
return(regionList);
}
public RegionController()
{
context = new RegionDbContext();
}