/// <summary>
/// 为keyword做盘古分词
/// </summary>
/// <param name="keyword"></param>
/// <param name="luceneQuery"></param>
/// <returns></returns>
private static string AnalyzerKeyword(string keyword)
{
StringBuilder queryStringBuilder = new StringBuilder();
ILuceneAnalyze analyzer = new LuceneAnalyze();
string[] words = analyzer.AnalyzerKey(keyword);
if (words.Length == 1)
{
queryStringBuilder.AppendFormat("{0}:{1}* ", "title", words[0]);
}
else
{
StringBuilder fieldQueryStringBuilder = new StringBuilder();
foreach (string word in words)
{
queryStringBuilder.AppendFormat("{0}:{1} ", "title", word);
}
}
string result = queryStringBuilder.ToString().TrimEnd();
logger.Info(string.Format("AnalyzerKeyword 将 keyword={0}转换为{1}", keyword, result));
return(result);
}
private static string AnalyzerKeyword(string keyword)
{
StringBuilder queryStringBuilder = new StringBuilder();
ILuceneAnalyze analyzer = new LuceneAnalyze();
List <string> words = analyzer.AnalyzerKey(keyword, "title");
if (words.Count == 1)
{
queryStringBuilder.AppendFormat("{0}:{1}* ", "title", words[0]);
}
else
{
StringBuilder fieldQueryStringBuilder = new StringBuilder();
foreach (string word in words)
{
queryStringBuilder.AppendFormat("{0}:{1} ", "title", word);
}
}
string result = queryStringBuilder.ToString().TrimEnd();
Console.WriteLine("AnalyzerKeyword 将 keyword={0}转换为{1}", keyword, result);
return(result);
}
/// <summary>
/// 为keyword做盘古分词
/// </summary>
/// <param name="keyword"></param>
/// <param name="fieldName"></param>
/// <returns></returns>
private static string AnalyzerKeyword(string keyword, string fieldName)
{
StringBuilder queryStringBuilder = new StringBuilder();
ILuceneAnalyze analyzer = new LuceneAnalyze();
List <string> words = analyzer.AnalyzerKey(keyword, fieldName);
if (words.Count == 1)
{
queryStringBuilder.AppendFormat("{0}:{1}* ", fieldName, words[0]);
}
else
{
StringBuilder fieldQueryStringBuilder = new StringBuilder();
foreach (string word in words)
{
queryStringBuilder.AppendFormat("{0}:{1} ", fieldName, word);
}
}
string result = queryStringBuilder.ToString().TrimEnd();
m_logger.Info(string.Format("AnalyzerKeyword 将 keyword={0}转换为{1}", keyword, result));
return(result);
}
public static List <string> PanGuSplitWord(string fieldName, string keyword)
{
ILuceneAnalyze luceneAnalyze = new LuceneAnalyze();
return(luceneAnalyze.AnalyzerKey(fieldName, keyword));
}
/// <summary>
///根据关键字进行查询,根据int的范围进行搜索
/// </summary>
/// <param name="Title"></param>
/// <returns></returns>
public List <Bpo_JobEntity> SearchJobList4(string Title, string FullAddress, int MinId, int MaxId)
{
List <Bpo_JobEntity> jobList = new List <Bpo_JobEntity>();
string path = "F://LuceneIndexDir";
FSDirectory dir = FSDirectory.Open(path);
//IndexSearcher searcher = new IndexSearcher(dir);//声明一个查询器，或者以下面一种方式声明
IndexReader reader = IndexReader.Open(dir, true);//查询器
IndexSearcher searcher = new IndexSearcher(reader);
//搜索条件，BooleanQuery可以同时制定多个搜索条件
BooleanQuery booleanQuery = new BooleanQuery();
//Query query = new TermQuery(new Term("Title", $"*{Title}*"));//不支持通配符
//Query query = new WildcardQuery(new Term("Title", $"*{Title}*")); // 通配符
if (!string.IsNullOrEmpty(Title))//空格隔开，按照多个词进行搜索
{
Title = new LuceneAnalyze().AnalyzerKeyword("Title", Title);
QueryParser parser = new QueryParser(Lucene.Net.Util.Version.LUCENE_30, "Title", new PanGuAnalyzer());
Query query = parser.Parse(Title);
booleanQuery.Add(query, Occur.MUST);
}
if (MinId > 0)//空格隔开，按照多个词进行搜索
{
//string idStr = new LuceneAnalyze().AnalyzerKeyword("Id", MinId.ToString());
QueryParser parser = new QueryParser(Lucene.Net.Util.Version.LUCENE_30, "Id", new PanGuAnalyzer());
Query query = parser.Parse(MinId.ToString());
booleanQuery.Add(query, Occur.MUST);
}
if (!string.IsNullOrEmpty(FullAddress))
{
FullAddress = new LuceneAnalyze().AnalyzerKeyword("FullAddress", FullAddress);
QueryParser parser = new QueryParser(Lucene.Net.Util.Version.LUCENE_30, "FullAddress", new PanGuAnalyzer());
Query query = parser.Parse(FullAddress);
booleanQuery.Add(query, Occur.MUST);
//使用WildcardQuery，相当于sql的like
//Query query2 = new WildcardQuery(new Term("FullAddress", $"*{FullAddress}*")); // 通配符
//booleanQuery.Add(query2, Occur.MUST);
}
//根据id区间区间搜索(此时id存储索引时要是NumericField类型)
NumericRangeFilter <int> intFilter = null;
//if (MinId > 0 && MaxId == 0)
//{
// intFilter = NumericRangeFilter.NewIntRange("Id", MinId, int.MaxValue, true, true);
//}
//else if (MaxId > 0 && MinId == 0)
//{
// intFilter = NumericRangeFilter.NewIntRange("Id", 0, MaxId, true, true);
//}
//else if (MaxId > 0 && MinId > 0)
//{
// intFilter = NumericRangeFilter.NewIntRange("Id", MinId, MaxId, true, true);
//}
//定义排序
SortField sortField = new SortField("Id", SortField.STRING, false); //降序
SortField sortField2 = new SortField("CompanyId", SortField.INT, false); //降序
Sort sort = new Sort(sortField, sortField2);
//取搜索结果方法1：
TopDocs docs = searcher.Search(booleanQuery, intFilter, 10000, sort); //找到的结果取100条数据
foreach (ScoreDoc sd in docs.ScoreDocs) //从docs.ScoreDocs取数据
{
Document doc = searcher.Doc(sd.Doc);
jobList.Add(new Bpo_JobEntity
{
Id = Convert.ToInt32(doc.Get("Id") ?? "-100"),
Title = doc.Get("Title"),
UserId = Convert.ToInt32(doc.Get("UserId") ?? "-100"),
UserName = doc.Get("UserName"),
CompanyId = Convert.ToInt32(doc.Get("CompanyId") ?? "-100"),
CompanyName = doc.Get("CompanyName"),
FullAddress = doc.Get("FullAddress"),
CreateDate = Convert.ToDateTime(doc.Get("CreateDate"))
});
}
return(jobList);
}
