/// <summary>
/// 新增一条数据的索引
/// </summary>
/// <param name="jobEntity"></param>
public void InsertIndex(Bpo_JobEntity jobEntity, string rootPath)
{
if (jobEntity == null)
{
return;
}
System.IO.DirectoryInfo footDirInfo = System.IO.Directory.CreateDirectory(rootPath);
// bool isCreate = footDirInfo.GetFiles().Count() == 0;//下面没有文件则为新建索引
FSDirectory directory = FSDirectory.Open(footDirInfo);
// using (IndexWriter writer = new IndexWriter(directory, CreateAnalyzerWrapper(), isCreate, IndexWriter.MaxFieldLength.LIMITED))
using (IndexWriter writer = new IndexWriter(directory, new PanGuAnalyzer(), false, IndexWriter.MaxFieldLength.LIMITED))
{
writer.MergeFactor = 2; //控制多个segment合并的频率，默认10
writer.UseCompoundFile = true; //创建符合文件 减少索引文件数量
Document document = getDocument(jobEntity);
writer.AddDocument(document);
//writer.Optimize();
}
}
/// <summary>
/// 删除一条数据的索引
/// </summary>
/// <param name="jobId"></param>
/// <returns></returns>
public int DeleteIndex(int jobId)
{
Bpo_JobEntity jobEntity = DataRepository.GetJobById(jobId);
if (jobEntity == null)
{
return(0);
}
LuceneBuild luceneBuild = new LuceneBuild();
luceneBuild.DeleteIndex <Bpo_JobEntity>(jobEntity, "Id", path);
return(1);
}
/// <summary>
/// 新增一条数据的索引
/// </summary>
/// <param name="jobId"></param>
/// <returns></returns>
public int InsertIndex(int jobId)
{
Bpo_JobEntity jobEntity = DataRepository.GetJobById(jobId);
if (jobEntity == null)
{
return(0);
}
LuceneBuild luceneBuild = new LuceneBuild();
luceneBuild.InsertIndex(jobEntity, path);
return(1);
}
/// <summary>
/// 更新一条数据的索引
/// </summary>
/// <param name="jobId"></param>
/// <returns></returns>
public int UpdateIndex(int jobId)
{
Bpo_JobEntity jobEntity = DataRepository.GetJobById(jobId);
if (jobEntity == null)
{
return(0);
}
jobEntity.UserName = "******";
LuceneBuild luceneBuild = new LuceneBuild();
luceneBuild.UpdateIndex <Bpo_JobEntity>(jobEntity, "Id", path);
return(1);
}
private Document getDocument(Bpo_JobEntity jobEntity)
{
Document document = new Document();//一条数据
//一个字段，列名，值，是否保存值，是否分词
//Field.Store.NO 代表不存值，这样就不会生产索引，取值时为null
//document.Add(new NumericField("Id", Field.Store.YES, true).SetIntValue(item.Id)); //存储为NumericField,可以根据数据进行搜索
document.Add(new Field("Id", jobEntity.Id.ToString(), Field.Store.YES, Field.Index.ANALYZED));
document.Add(new Field("Title", jobEntity.Title ?? "".ToString(), Field.Store.YES, Field.Index.ANALYZED));
document.Add(new NumericField("UserId", Field.Store.YES, true).SetIntValue(jobEntity.UserId));
document.Add(new Field("UserName", jobEntity.UserName ?? "".ToString(), Field.Store.YES, Field.Index.ANALYZED));
document.Add(new NumericField("CompanyId", Field.Store.YES, true).SetIntValue(jobEntity.CompanyId));
document.Add(new Field("CompanyName", jobEntity.CompanyName ?? "".ToString(), Field.Store.YES, Field.Index.ANALYZED));
document.Add(new Field("FullAddress", jobEntity.FullAddress ?? "".ToString(), Field.Store.YES, Field.Index.ANALYZED));
// document.Add(new NumericField("CreateTime", Field.Store.YES, true).SetIntValue(int.Parse(jobEntity.CreateTime.ToString("yyyyMMdd"))));
document.Add(new Field("CreateDate", jobEntity.CreateDate.ToString("yyyy-MM-dd HH:mm:ss"), Field.Store.YES, Field.Index.NOT_ANALYZED));
return(document);
}
/// <summary>
/// 更新一条数据的索引
/// </summary>
/// <param name="ci"></param>
public void UpdateIndex(Bpo_JobEntity job, string rootIndexPath)
{
if (job == null)
{
return;
}
System.IO.DirectoryInfo dirInfo = System.IO.Directory.CreateDirectory(rootIndexPath);
bool isCreate = dirInfo.GetFiles().Count() == 0;//下面没有文件则为新建索引
FSDirectory directory = FSDirectory.Open(dirInfo);
using (IndexWriter writer = new IndexWriter(directory, new PanGuAnalyzer() /*CreateAnalyzerWrapper()*/, isCreate, IndexWriter.MaxFieldLength.LIMITED))
{
writer.MergeFactor = 100; //控制多个segment合并的频率，默认10
writer.UseCompoundFile = true; //创建符合文件 减少索引文件数量
Document document = getDocument(job);
writer.UpdateDocument(new Term("Id", job.Id.ToString()), document);//注意：Id生成索引时要用Field，而不能是NumericField
}
}
/// <summary>
/// 删除指定的索引
/// </summary>
/// <param name="ci"></param>
public void DeleteIndex(Bpo_JobEntity jobEntity, string rootIndexPath)
{
if (jobEntity == null)
{
return;
}
//Analyzer analyzer = new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_30);
System.IO.DirectoryInfo dirInfo = System.IO.Directory.CreateDirectory(rootIndexPath);
FSDirectory directory = FSDirectory.Open(dirInfo);
//using (IndexWriter writer = new IndexWriter(directory, new PanGuAnalyzer(), false, IndexWriter.MaxFieldLength.LIMITED))
//{
using (IndexReader reader = IndexReader.Open(directory, false))
{
reader.DeleteDocuments(new Term("Id", jobEntity.Id.ToString()));
//writer.Commit();
//writer.Optimize();
}
}
