private static void SearchFileContent()
{
var data = GetFileData(AppDomain.CurrentDomain.BaseDirectory + @"files\ccflow.doc");
var dataEncoding = Convert.ToBase64String(data); //转换为base64
ElasticSearchHelper.Intance.Index("trying-out-mapper-attachments", "person", "1", new person2()
{
cv = dataEncoding
});
//查询文件内容
string cmd = new SearchCommand("trying-out-mapper-attachments", "person");
var query =
new QueryBuilder <person2>().Query(
b =>
b.Bool(
m =>
m.Should(
q =>
q.QueryString(
qs =>
qs.Fields(new string[] { "cv" })
.Query("不支持低版本的IE浏览器")
.DefaultOperator(Operator.AND))))).Build();
//文件内容查询结果
var result = Client.Post(cmd, query);
JsonNetSerializer serializer = new JsonNetSerializer();
var list = serializer.ToSearchResult <person2>(result);
}
//全文检索，单个字段或者多字段 或关系
//字段intro 包含词组key中的任意一个单词
//
public personList Search <person>(string indexName, string indexType, string key, int from, int size)
{
string cmd = new SearchCommand(indexName, indexType);
string query = new QueryBuilder <person>()
//1 查询
.Query(b =>
b.Bool(m =>
//并且关系
m.Must(t =>
//分词的最小单位或关系查询
t.QueryString(t1 => t1.DefaultField("name").Query(key))
//.QueryString(t1 => t1.DefaultField("name").Query(key))
// t .Terms(t2=>t2.Field("intro").Values("研究","方鸿渐"))
//范围查询
// .Range(r => r.Field("age").From("100").To("200") )
)
)
)
//分页
.From(from)
.Size(size)
//排序
.Sort(c => c.Field("updatetime", SortDirection.desc))
//添加高亮
.Highlight(h => h
.PreTags("<b>")
.PostTags("</b>")
.Fields(
f => f.FieldName("name").Order(HighlightOrder.score),
f => f.FieldName("_all")
)
)
.Build();
string result = Client.Post(cmd, query);
var serializer = new JsonNetSerializer();
var list = serializer.ToSearchResult <person>(result);
personList datalist = new personList();
datalist.hits = list.hits.total;
datalist.took = list.took;
//var personList = list.hits.hits.Select(c => person
//{
// id = c._source.id,
// age = c._source.age,
// birthday = c._source.birthday,
// intro = string.Join("", c.highlight["intro"]), //高亮显示的内容，一条记录中出现了几次
// name = c._source.name,
// sex = c._source.sex,
//});
//datalist.list.AddRange(datalist);
return(datalist);
}
public void Log(Event @event)
{
try
{
var eventS = _serializer.Serialize(@event);
_connection.Post(new IndexCommand("log", "event"), eventS);
}
catch (Exception)
{
}
}
static void Main(string[] args)
{
ElasticConnection client = new ElasticConnection("localhost", 9200);
SearchCommand cmd = new SearchCommand("movies", "电影");
var query = new QueryBuilder <VerycdItem>()
.Query(b =>
b.Bool(m =>
//并且关系
m.Must(t =>
//分词的最小单位或关系查询
t.QueryString(t1 => t1.DefaultField("content").Query("成龙"))
).Must(t => t.QueryString(t1 => t1.DefaultField("category2").Query("纪录")))
)
).Size(100)
.Build();
// DeleteCommand delCmd = new DeleteCommand()
var result = client.Post(cmd, query);
var serializer = new JsonNetSerializer();
var searchResult = serializer.ToSearchResult <VerycdItem>(result);
//searchResult.hits.total; //一共有多少匹配结果 10500
// searchResult.Documents;//当前页的查询结果
foreach (var doc in searchResult.Documents)
{
Console.WriteLine(doc.title + "," + doc.category1 + "," + doc.category2);
}
Console.ReadKey();
}
static void Main(string[] args)
{
ElasticConnection client = new ElasticConnection("localhost", 9200);
SearchCommand cmd = new SearchCommand("MyTest", "persons");
var query = new QueryBuilder <Person>().Query(b => b.Bool(m =>
//并且关系
m.Must(t =>
//分词的最小单位或关系查询
t.QueryString(t1 => t1.DefaultField("Name").Query("求")))))
//分页
// .From(0)
// .Size(10)
////排序
//.Sort(c => c.Field("age", SortDirection.desc))
//////添加高亮
//.Highlight(h => h
// .PreTags("<b>")
// .PostTags("</b>")
// .Fields(
// f => f.FieldName("Name").Order(HighlightOrder.score))
//)
.Build();
var result = client.Post(cmd, query);
var serializer = new JsonNetSerializer();
var list = serializer.ToSearchResult <Person>(result);
foreach (var doc in list.Documents)
{
Console.WriteLine(doc.Id);
}
}
public void Search()
{
BookHelper bookHelper = new BookHelper();
ElasticConnection client = new ElasticConnection("222.186.190.241", 9200);
//第一个参数是数据库，第二个参数是表
SearchCommand cmd = new SearchCommand("xiaoshuo", "xiaoshuo_url");
var query = new QueryBuilder <Book>()
.Query(b =>
b.Bool(m =>
//并且关系
m.Must(t =>
//分词的最小单位或关系查询
t.QueryString(t1 => t1.DefaultField("Name").Query("总裁"))
)
)
).Size(5).Build();
var result = client.Post(cmd, query);
var count = result.Result.Count();
var serializer = new JsonNetSerializer();
var results = serializer.ToSearchResult <Book>(result); //把结果序列化
Book book;
foreach (var doc in results.Documents)
{
book = new Book()
{
Name = doc.Name,
Url = doc.Url
};
Console.WriteLine(book.Name);
Console.WriteLine(book.Url);
}
}
public List <Book> Search(string keyword)
{
ElasticConnection client = new ElasticConnection("222.186.190.241", 9200);
//第一个参数是数据库，第二个参数是表
SearchCommand cmd = new SearchCommand("xiaoshuo", "xiaoshuo_url");
var query = new QueryBuilder <Book>()
.Query(b =>
b.Bool(m =>
//并且关系
m.Must(t =>
//分词的最小单位或关系查询
t.QueryString(t1 => t1.DefaultField("Name").Query(keyword))
)
)
).Size(5).Build();
var result = client.Post(cmd, query);
var serializer = new JsonNetSerializer();
var results = serializer.ToSearchResult <Book>(result); //把结果序列化
List <Book> list = new List <Book>();
Book book;
foreach (var doc in results.Documents)
{
book = new Book()
{
Name = doc.Name,
Url = doc.Url
};
list.Add(book);
}
return(list);
}
/// <summary>
/// elasticSearch(搜索下面方法中添加的数据)
/// </summary>
/// <param name="args"></param>
static void Main(string[] args)
{
ElasticConnection client = new ElasticConnection("localhost", 9200);
SearchCommand cmd = new SearchCommand("verycd", "items");
//首先创建我要查询的结果(VerycdItem)
var query = new QueryBuilder <VerycdItem>()
.Query(b =>
b.Bool(m =>
//并且关系
m.Must(t =>
//分词的最小单位或关系查询 //DefaultField是模糊匹配,Term是精确匹配(int,long类型),Must是必须(and),Should是或者(or)，MustNot是否定(不能含有)
t.QueryString(t1 => t1.DefaultField("content").Query("成龙"))
).Must(t => t.QueryString(t1 => t1.DefaultField("category2").Query("纪录")))
)
).Size(100)//默认返回10条,Size(100)表示返回最多100条
.Build();
//elasticSearch中没有更新操作,先删在加
// DeleteCommand delCmd = new DeleteCommand()
//得到查询结果
var result = client.Post(cmd, query);
var serializer = new JsonNetSerializer();
//把查询结果序列化
var searchResult = serializer.ToSearchResult <VerycdItem>(result);
//searchResult.hits.total; //一共有多少匹配结果 10500
// searchResult.Documents;//当前页的查询结果
foreach (var doc in searchResult.Documents)
{
Console.WriteLine(doc.title + "," + doc.category1 + "," + doc.category2);
}
Console.ReadKey();
}
/// <summary>
/// 全文检索
/// </summary>
/// <typeparam name="T">搜索类型</typeparam>
/// <param name="indexName">索引名称</param>
/// <param name="indexType">索引类型</param>
/// <param name="query">查询条件（单个字段或者多字段或关系）</param>
/// <param name="from">当前页（0为第一页）</param>
/// <param name="size">页大小</param>
/// <returns>搜索结果</returns>
public SearchResult <T> Search <T>(string indexName, string indexType, QueryBuilder <T> query, int from, int size)
{
var queryString = query.From(from).Size(size).Build();
var cmd = new SearchCommand(indexName, indexType);
var result = Client.Post(cmd, queryString);
var serializer = new JsonNetSerializer();
return(serializer.ToSearchResult <T>(result));
}
public void RefreshIndex()
{
try
{
string searchCommand = Commands.Refresh(_esIndex);
_connection.Post(searchCommand);
}
catch (Exception ex)
{
throw new Exception(string.Format("ES数据库挂了， 快找运维解决！{0}", ex.Message));
}
}
/// <summary>
/// 从ElasticSearch数据库中取数据(搜索)
/// </summary>
/// <param name="args"></param>
static void Main2(string[] args)
{
//连接地址
ElasticConnection client = new ElasticConnection("localhost", 9200);
//从哪个数据库哪个表取数据
SearchCommand cmd = new SearchCommand("zsz", "persons");
//首先创建我要查询的结果(Person)
var query = new QueryBuilder <Person>()
//查询的条件
.Query(b =>
b.Bool(m =>
//并且关系
m.Must(t =>
//分词的最小单位或关系查询 //name字段中必须含有帅这个词
t.QueryString(t1 => t1.DefaultField("Name").Query("丑"))
)
)
)
//分页(第0条开始取10条数据)
/*
* .From(0)//Skip()
* .Size(10)//Take()*/
//排序(根据年龄排序)
//.Sort(c => c.Field("Age", SortDirection.desc))
//添加高亮(查询结果高亮显示)
/*
* .Highlight(h => h
* .PreTags("<b>")
* .PostTags("</b>")
* .Fields(
* f => f.FieldName("Name").Order(HighlightOrder.score)
* )
* )*/
.Build();
//查询结果
var result = client.Post(cmd, query);
var serializer = new JsonNetSerializer();
//把查询结果序列化
var searchResult = serializer.ToSearchResult <Person>(result);
//searchResult.hits.total; //一共有多少匹配结果 10500
// searchResult.Documents;//当前页的查询结果
foreach (var doc in searchResult.Documents)
{
Console.WriteLine(doc.Id + "," + doc.Name + "," + doc.Age);
}
Console.ReadKey();
}
public BaseQueryEntity <T> QueryInTerm(string field, string value)
{
string cmd = CreateSearchCommand();
string query = new QueryBuilder <T>()
.Query(q =>
q.Filtered(f =>
f.Filter(f1 =>
f1.Term(t =>
t.Field(field).Value(value))))).Build();
OperationResult result = Client.Post(cmd, query);
var data = serializer.ToSearchResult <T>(result.Result);
return(GetResults(data));
}
static void Main(string[] args)
{
ElasticConnection client = new ElasticConnection("localhost", 9200);
SearchCommand cmd = new SearchCommand("zsz", "persons");
var query = new QueryBuilder <Person>()
.Query(b =>
b.Bool(m =>
//并且关系
m.Must(t =>
//分词的最小单位或关系查询
t.QueryString(t1 => t1.DefaultField("Name").Query("hand"))
)
)
).Size(100)
//分页
/*
* .From(0)//Skip()
* .Size(10)//Take()*/
//排序
//.Sort(c => c.Field("Age", SortDirection.desc))
//添加高亮
/*
* .Highlight(h => h
* .PreTags("<b>")
* .PostTags("</b>")
* .Fields(
* f => f.FieldName("Name").Order(HighlightOrder.score)
* )
* )*/
.Build();
var result = client.Post(cmd, query);
var serializer = new JsonNetSerializer();
var searchResult = serializer.ToSearchResult <Person>(result);
//searchResult.hits.total; //一共有多少匹配结果 10500
// searchResult.Documents;//当前页的查询结果
foreach (var doc in searchResult.Documents)
{
Console.WriteLine(doc.Id + "," + doc.Name + "," + doc.Age);
}
Console.ReadKey();
}
//ES搜索
public ActionResult EsSearch(string Msg)
{
//从Es中查数据
//模糊查询
ElasticConnection client = new ElasticConnection("localhost", 9200);
SearchCommand cmd = new SearchCommand("ZSZHouse", "House");//要查询的数据库，表名字
var query = new QueryBuilder <HouseAddnewDTO>()
.Query(b =>
b.Bool(m =>
//并且关系
m.Must(t =>
//分词的最小单位或关系查询
t.QueryString(t1 => t1.DefaultField("Address").Query(Msg)) //title字段必须含有“美女”
)
)
)
.Build();
var result = client.Post(cmd, query);
var serializer = new JsonNetSerializer();
var searchResult = serializer.ToSearchResult <HouseAddnewDTO>(result);
//searchResult.hits.total;//一共有多少匹配结果
//searchResult.Documents;//当前页的查询结果
IndexHouseSearchViewModel model = new IndexHouseSearchViewModel();
foreach (var doc in searchResult.Documents)
{
var r = doc.Address;
model.Address = r;
if (r.Contains(Msg))
{
return(Json(new AjaxResult {
Status = "ok"
}));
}
}
return(Json(new AjaxResult {
Status = "error"
}));
}
private static long CountTweets(ElasticConnection connection, JsonNetSerializer serializer)
{
string countCommand = Commands.Count("twitter", "tweet").Pretty();
//string query = new QueryBuilder<Tweet>()
// .Query(qry => qry
// .Term(term => term
// .Field(tweet => tweet.User)
// .Value("testUser".ToLower()) // by default terms query requires lowercased values.
// .Boost(5)
// )
// ).BuildBeautified();
string query = new QueryBuilder <Tweet>()
.Query(qry => qry
.Term(t => t
.Field(x => x.User)
.Value("testuser")
.Boost(5)
)
).BuildBeautified(); // or .Buid(); to get condensed single line query.
/* or alternatively
* query = new TermQuery<Tweet>()
* .Field(x => x.User)
* .Value("testuser")
* .BuildBeautified(); // or .Buid(); to get condensed single line query.
*/
var results = connection.Post(countCommand, query);
var searchResult = serializer.ToCountResult(results);
PrintCountResults(searchResult, countCommand, query, results);
return(searchResult.count);
}