我正在使用 Lucene.Net 和 Sitecore.Search.Crawlers.DatabaseCrawler。目前,此搜索适用于所有字段,我想将其更改为仅在几个字段中搜索。我有自定义爬虫:
public class CustomCrawler : Sitecore.Search.Crawlers.DatabaseCrawler
{
protected override void AddAllFields(Lucene.Net.Documents.Document document, Sitecore.Data.Items.Item item, bool versionSpecific)
{
base.AddAllFields(document, item, versionSpecific);
document.Add(new Field("title", item["TitleField"], Field.Store.YES, Field.Index.TOKENIZED));
document.Add(new Field("image", imageUrl, Field.Store.YES, Field.Index.TOKENIZED));
}
protected override bool IsMatch(Item item)
{
if (!item.TemplateName.Contains("txttmpl")) return false;
return base.IsMatch(item);
}
}
我使用标题和图像字段作为搜索结果并将它们显示在网页上:
var list = new List<SearchResult>();
foreach (var result in results)
{
list.Add(new SearchResult()
{
Title = result.Document.GetField("title").StringValue(),
Image = result.Document.GetField("image").StringValue()
});
}
var jss = new JavaScriptSerializer();
httpContext.Response.ContentType = "application/json";
httpContext.Response.Write(jss.Serialize(list));
httpContext.Response.Flush();
在 web.config 文件中:
<index id="myindex" type="Sitecore.Search.Index, Sitecore.Kernel">
<param desc="name">$(id)</param>
<param desc="folder">Myfolder</param>
<Analyzer ref="search/analyzer" />
<locations hint="list:AddCrawler">
<web type="Search.CustomCrawler, Search">
<Database>web</Database>
<Tags>web content</Tags>
<Root>/sitecore/content/Site</Root>
<Boost>2.0</Boost>
</web>
</locations>
</index>
上面的解决方案搜索所有领域。我怎样才能让它只在
某些领域进行搜索?我尝试过 document.RemoveField("SomeFieldName"),但它不起作用。如何删除或添加一些字段?提前致谢。