public IActionResult Search()
{
LuceneHelper lHelper = new LuceneHelper(_hostingEnvironment.WebRootPath);
lHelper.Search("神农");
lHelper.Search("六月份");
return(View());
}
public async Task <ActionResult> Search(string wd = "", int page = 1, int size = 10)
{
var nul = new List <PostOutputDto>();
int count = 0;
ViewBag.Elapsed = 0;
ViewBag.Total = count;
ViewBag.Keyword = wd;
if (Regex.Match(wd, CommonHelper.BanRegex).Length > 0 || Regex.Match(wd, CommonHelper.ModRegex).Length > 0)
{
//ViewBag.Wd = "";
return(RedirectToAction("Search"));
}
var hotSearches = new List <KeywordsRankOutputDto>();
ViewBag.hotSearches = hotSearches;
using (RedisHelper redisHelper = RedisHelper.GetInstance())
{
string key = Request.UserHostAddress + Request.UserAgent;
if (redisHelper.KeyExists(key) && !redisHelper.GetString(key).Equals(wd))
{
ViewBag.ErrorMsg = "10秒内只能搜索1次！";
return(View(nul));
}
redisHelper.SetString(key, wd, TimeSpan.FromSeconds(10));
}
wd = wd.Trim().Replace("+", " ");
var sw = new Stopwatch();
if (!string.IsNullOrWhiteSpace(wd) && !wd.Contains("锟斤拷"))
{
if (page == 1)
{
SearchDetailsBll.AddEntity(new SearchDetails()
{
KeyWords = wd,
SearchTime = DateTime.Now,
IP = Request.UserHostAddress
});
}
sw.Start();
var query = LuceneHelper.Search(wd).ToList();
var posts = query.Skip((page - 1) * size).Take(size).ToList();
sw.Stop();
ViewBag.Elapsed = sw.Elapsed.TotalMilliseconds;
ViewBag.Total = query.Count;
SearchDetailsBll.SaveChanges();
return(View(posts));
}
var start = DateTime.Today.AddDays(-7);
hotSearches = (await SearchDetailsBll.LoadEntitiesFromCacheNoTrackingAsync(s => s.SearchTime > start, s => s.SearchTime, false).ConfigureAwait(true)).GroupBy(s => s.KeyWords.ToLower()).OrderByDescending(g => g.Count()).Take(7).Select(g => new KeywordsRankOutputDto()
{
KeyWords = g.FirstOrDefault()?.KeyWords,
SearchCount = g.Count()
}).ToList();
ViewBag.hotSearches = hotSearches;
return(View(nul));
}
/// <summary>
/// 查询Lucene.NET
/// </summary>
/// <param name="top">数量</param>
/// <param name="site_id">网站ID</param>
/// <param name="channel_id">频道ID</param>
/// <param name="category_id">类别ID</param>
/// <param name="keyword">关键词</param>
/// <returns></returns>
public DataTable get_lucene_list(int top, int site_id, int channel_id, int category_id, string keywords)
{
DataTable dt = new DataTable();
if (site_id > 0 && null != keywords && keywords.Length > 1)
{
dt = LuceneHelper.Search(LuceneHelper.INDEX_DIR, top, site_id, channel_id, category_id, keywords);
}
return(dt);
}
/// <summary>
/// 查询Lucene.NET
/// </summary>
/// <param name="pageSize">每页显示数量</param>
/// <param name="pageIndex">当前分页</param>
/// <param name="site_id">网站ID</param>
/// <param name="channel_id">频道ID</param>
/// <param name="category_id">类别ID</param>
/// <param name="keyword">关键词</param>
/// <param name="recordCount">结果总数量</param>
/// <returns></returns>
public DataTable get_lucene_list(int pageSize, int pageIndex, int site_id, int channel_id, int category_id, string keywords, out int recordCount)
{
recordCount = 0;
DataTable dt = new DataTable();
if (site_id > 0 && null != keywords && keywords.Length > 0)
{
dt = LuceneHelper.Search(LuceneHelper.INDEX_DIR, pageSize, pageIndex, site_id, channel_id, category_id, keywords, out recordCount);
}
return(dt);
}