/// <summary>
/// 微博搜索
/// </summary>
/// <param name="query"></param>
/// <returns></returns>
public ActionResult Search(MicroblogFullTextQuery query)
{
query.PageSize = 20;//每页记录数
//调用搜索器进行搜索
MicroblogSearcher microblogSearcher = (MicroblogSearcher)SearcherFactory.GetSearcher(MicroblogSearcher.CODE);
PagingDataSet <MicroblogEntity> microblogEntities = microblogSearcher.Search(query);
//添加到用户搜索历史
IUser CurrentUser = UserContext.CurrentUser;
if (CurrentUser != null)
{
SearchHistoryService searchHistoryService = new SearchHistoryService();
searchHistoryService.SearchTerm(CurrentUser.UserId, MicroblogSearcher.CODE, query.Keyword);
}
//添加到热词
if (!string.IsNullOrWhiteSpace(query.Keyword))
{
SearchedTermService searchedTermService = new SearchedTermService();
searchedTermService.SearchTerm(MicroblogSearcher.CODE, query.Keyword);
}
//设置页面Meta
if (string.IsNullOrWhiteSpace(query.Keyword))
{
pageResourceManager.InsertTitlePart("搜索");//设置页面Title
}
else
{
pageResourceManager.InsertTitlePart('“' + query.Keyword + '”' + "的相关微博");//设置页面Title
}
return(View(microblogEntities));
}
public ActionResult _List(SortBy_Microblog?sortBy = null, long?tagGroupId = null, int pageIndex = 1)
{
//获取微博分页数据
PagingDataSet <MicroblogEntity> microblogs = null;
if (tagGroupId.HasValue && tagGroupId.Value > 0)
{
IEnumerable <string> tagNames = tagService.GetTagsOfGroup(tagGroupId.Value);
MicroblogFullTextQuery query = new MicroblogFullTextQuery();
query.PageIndex = pageIndex;
query.PageSize = 30;//每页记录数
query.Keywords = tagNames;
//调用搜索器进行搜索
MicroblogSearcher microblogSearcher = (MicroblogSearcher)SearcherFactory.GetSearcher(MicroblogSearcher.CODE);
microblogs = microblogSearcher.Search(query);
}
else
{
microblogs = microblogService.GetPagings(pageIndex, tenantTypeId: TenantTypeIds.Instance().User(), sortBy: sortBy ?? SortBy_Microblog.DateCreated);
////当第一次加载页面时获取当前页的最新一条微博的ID
//if (pageIndex == 1)
//{
// ViewData["lastMicroblogId"] = microblogs.OrderByDescending(m => m.MicroblogId).Select(m => m.MicroblogId).FirstOrDefault();
//}
}
return(View(microblogs));
}
/// <summary>
/// 微博快捷搜索
/// </summary>
/// <param name="query"></param>
/// <returns></returns>
public ActionResult _QuickSearch(MicroblogFullTextQuery query, int topNumber)
{
query.PageSize = topNumber;//每页记录数
query.PageIndex = 1;
query.IsGroup = false;
//调用搜索器进行搜索
MicroblogSearcher microblogSearcher = (MicroblogSearcher)SearcherFactory.GetSearcher(MicroblogSearcher.CODE);
PagingDataSet <MicroblogEntity> microblogEntities = microblogSearcher.Search(query);
return(PartialView(microblogEntities));
}
/// <summary>
/// 翻页获取微博(图片模式 按标签分组搜时)
/// </summary>
/// <param name="tagGroupId"></param>
/// <param name="pageIndex"></param>
/// <param name="pageSize"></param>
/// <returns></returns>
public ActionResult _WaterfallGetMicroblogByTagGroup(long tagGroupId, int pageIndex = 1, int pageSize = 30)
{
IEnumerable <string> tagNames = tagService.GetTagsOfGroup(tagGroupId);
MicroblogFullTextQuery query = new MicroblogFullTextQuery();
query.PageIndex = pageIndex;
query.PageSize = pageSize;//每页记录数
query.Keywords = tagNames;
//调用搜索器进行搜索
MicroblogSearcher microblogSearcher = (MicroblogSearcher)SearcherFactory.GetSearcher(MicroblogSearcher.CODE);
PagingDataSet <MicroblogEntity> microblogEntities = microblogSearcher.Search(query);
return(View("_Waterfall", microblogEntities.AsEnumerable <MicroblogEntity>()));
}
/// <summary>
/// 话题详情页
/// </summary>
/// <returns></returns>
public ActionResult Topic(string topic)
{
IUser CurrentUser = UserContext.CurrentUser;
if (CurrentUser == null)
{
return(Redirect(SiteUrls.Instance().Login(true)));
}
Tag tag = tagService.Get(topic);
if (tag == null)
{
return(HttpNotFound());
}
FavoriteService FavoriteService = new FavoriteService(TenantTypeIds.Instance().Tag());
bool isFavorited = FavoriteService.IsFavorited(tag.TagId, CurrentUser.UserId);
ViewData["isFavorited"] = isFavorited;
pageResourceManager.InsertTitlePart(tag.TagName);
if (!string.IsNullOrEmpty(tag.Description))
{
pageResourceManager.SetMetaOfDescription(HtmlUtility.StripHtml(tag.Description, true, false));
}
//话题下有没有微博
string tagName = tag.TagName;
//调用搜索器进行搜索
MicroblogFullTextQuery query = new MicroblogFullTextQuery();
query.PageIndex = 1;
query.PageSize = 20;//每页记录数
query.Keywords = new List <string> {
tagName
};
MicroblogSearcher microblogSearcher = (MicroblogSearcher)SearcherFactory.GetSearcher(MicroblogSearcher.CODE);
PagingDataSet <MicroblogEntity> microblogEntities = microblogSearcher.Search(query);
ViewData["microblogEntities"] = microblogEntities;
return(View(tag));
}
/// <summary>
/// 话题相关的微博列表
/// </summary>
/// <param name="tagId"></param>
/// <param name="pageSize"></param>
/// <param name="pageIndex"></param>
/// <returns></returns>
public ActionResult _TopicMicroblogList(long tagId, int pageSize = 20, int pageIndex = 1)
{
Tag tag = tagService.Get(tagId);
string tagName = tag.TagName;
//调用搜索器进行搜索
MicroblogFullTextQuery query = new MicroblogFullTextQuery();
query.PageIndex = pageIndex;
query.PageSize = pageSize;//每页记录数
query.Keywords = new List <string> {
tagName
};
MicroblogSearcher microblogSearcher = (MicroblogSearcher)SearcherFactory.GetSearcher(MicroblogSearcher.CODE);
PagingDataSet <MicroblogEntity> microblogEntities = microblogSearcher.Search(query);
return(View(microblogEntities));
}
/// <summary>
/// 微博分页搜索
/// </summary>
/// <param name="query">搜索条件</param>
/// <returns>符合搜索条件的分页集合</returns>
public PagingDataSet <MicroblogEntity> Search(MicroblogFullTextQuery microBlogQuery)
{
if (microBlogQuery.Keywords == null && string.IsNullOrWhiteSpace(microBlogQuery.Keyword) && microBlogQuery.SearchTerm == MicroblogSearchTerm.ALL)
{
return(new PagingDataSet <MicroblogEntity>(new List <MicroblogEntity>()));
}
LuceneSearchBuilder searchBuilder = BuildLuceneSearchBuilder(microBlogQuery);
//使用LuceneSearchBuilder构建Lucene需要Query、Filter、Sort
Query query = null;
Filter filter = null;
Sort sort = null;
searchBuilder.BuildQuery(out query, out filter, out sort);
//调用SearchService.Search(),执行搜索
PagingDataSet <Document> searchResult = searchEngine.Search(query, filter, sort, microBlogQuery.PageIndex, microBlogQuery.PageSize);
IEnumerable <Document> docs = searchResult.ToList <Document>();
//解析出搜索结果中的微博ID
List <long> microblogIds = new List <long>();
foreach (Document doc in docs)
{
long microblogId = long.Parse(doc.Get(MicroblogIndexDocument.MicroblogId));
microblogIds.Add(microblogId);
}
//根据微博ID列表批量查询微博实例
IEnumerable <MicroblogEntity> microblogList = microBlogService.GetMicroblogs(microblogIds);
//组装分页对象
PagingDataSet <MicroblogEntity> microblogs = new PagingDataSet <MicroblogEntity>(microblogList)
{
TotalRecords = searchResult.TotalRecords,
PageSize = searchResult.PageSize,
PageIndex = searchResult.PageIndex,
QueryDuration = searchResult.QueryDuration
};
return(microblogs);
}
/// <summary>
/// 根据微博搜索查询条件构建Lucene查询条件
/// </summary>
/// <param name="userQuery"></param>
/// <returns></returns>
private LuceneSearchBuilder BuildLuceneSearchBuilder(MicroblogFullTextQuery microblogQuery)
{
LuceneSearchBuilder searchBuilder = new LuceneSearchBuilder();
//微博搜索词匹配范围
string fieldName = null;
switch (microblogQuery.SearchRange)
{
case MicroblogSearchRange.TOPIC:
fieldName = MicroblogIndexDocument.Topic;
break;
default:
fieldName = MicroblogIndexDocument.Body;
break;
}
if (microblogQuery.Keywords != null && microblogQuery.Keywords.Count() != 0)
{
//是否模糊查询
if (microblogQuery.IsFuzzy)
{
searchBuilder.WithPhrases(fieldName, microblogQuery.Keywords, BoostLevel.Hight, false);
}
else
{
searchBuilder.WithFields(fieldName, microblogQuery.Keywords, true, BoostLevel.Hight, false);
}
}
else
{
searchBuilder.WithPhrase(fieldName, microblogQuery.Keyword, BoostLevel.Hight);
}
//微博搜索条件过滤
switch (microblogQuery.SearchTerm)
{
case MicroblogSearchTerm.ISORIGINALITY:
searchBuilder.WithField(MicroblogIndexDocument.IsOriginality, 1, true, BoostLevel.Hight, true);
break;
case MicroblogSearchTerm.HASPHOTO:
searchBuilder.WithField(MicroblogIndexDocument.HasPhoto, 1, true, BoostLevel.Hight, true);
break;
case MicroblogSearchTerm.HASMUSIC:
searchBuilder.WithField(MicroblogIndexDocument.HasMusic, 1, true, BoostLevel.Hight, true);
break;
case MicroblogSearchTerm.HASVIDEO:
searchBuilder.WithField(MicroblogIndexDocument.HasVideo, 1, true, BoostLevel.Hight, true);
break;
default:
break;
}
////筛选租户类型
//if (!string.IsNullOrEmpty(microblogQuery.TenantTypeId))
//{
// searchBuilder.WithField(MicroblogIndexDocument.TenantTypeId, microblogQuery.TenantTypeId, true, BoostLevel.Hight, true);
//}
if (!microblogQuery.IsGroup)
{
searchBuilder.NotWithField(MicroblogIndexDocument.TenantTypeId, TenantTypeIds.Instance().Group());
}
//微博排序
searchBuilder.SortByString(MicroblogIndexDocument.DateCreated, true);
return(searchBuilder);
}
