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Elasticsearch 搜索 分词器 过滤器     所属分类 elasticsearch 浏览量 146
查找分类为Java 的文章

/articles/_search?q=category:java
/articles/_search?q=java&df=category

/articles/_search?q=category:java架构师
/articles/_search?q=content:java架构师


/articles/_search?q=content:java架构师&default_operator=and
/articles/_search?q=content:java架构师&default_operator=or

/articles/_search?q=content:java架构师&default_operator=or&analyzer=standard
/articles/_search?q=content:java架构师&default_operator=or&analyzer=simple
/articles/_search?q=content:java%20架构师&default_operator=or&analyzer=simple

/articles/_search?q=content:java架构师&default_operator=or&analyzer=ik_smart
/articles/_search?q=content:java架构师&default_operator=or&analyzer=ik_max_word


/articles/_search?q=java程序员&default_operator=and
/articles/_search?q=java程序员&df=title&default_operator=and



POST /articles/_search
{
  "query":{
    "term":{
      "category":"java"
    }
  }
}

{
  "query":{
    "term":{
      "category":"java架构师"
    }
  }
}


全文检索
POST /articles/_search
{
  "query":{
    "match":{
      "category":"Java架构师"
    }
  }
}



POST /articles/_search
{
  "query":{
    "match":{
      "title":"Java架构师"
    }
  }
}

POST /articles/_search
{
  "query":{
    "match":{
      "content":"Java架构师"
    }
  }
}

POST /articles/_search
{
  "query":{
    "match":{"Java架构师"}
  }
}


{
  "profile": "true",
  "query":{
    "term":{
      "content":"java架构师"
    }
  }
}

{
  "profile": "true",
  "query":{
    "match":{
      "content":"java架构师"
    }
  }
}

{
  "profile": "true",
  "query":{
    "match_phrase":{
      "content":"java架构师"
    }
  }
}


{
    "query": {
        "multi_match": {
        	"query": "java",
    	     "fields": ["title", "content","category"]
        }
    }
}

{
  "query": {"terms": {"title": ["java","linux"]}}
}


Analysis 文本分析 分词 把文本转换成一系列单词(term/token) Analysis通过Analyzer来实现 analyzer 三大组件 character filters , tokenizers , token filters 1) character filter 字符过滤器 文本预处理,譬如过滤html标签 2) tokenizers 分词器 英文分词可以根据空格将单词分开,中文分词比较复杂 3) Token filters Token过滤器 将切分的单词进行加工 ,大小写转换 ,去掉词(例如停用词等),或者增加词(例如同义词) 三者顺序 Character Filters--->Tokenizer--->Token Filter POST _analyze { "analyzer": "standard", "text": "Java架构师" } { "analyzer": "standard", "text": "Java 架构师" } { "analyzer": "simple", "text": "Java架构师" } { "analyzer": "simple", "text": "Java 架构师" } { "analyzer": "ik_smart", "text": "Java架构师" } { "analyzer": "ik_smart", "text": "Java 架构师" } { "analyzer": "ik_max_word", "text": "Java架构师" } { "analyzer": "ik_max_word", "text": "Java 架构师" }
{ "tokenizer": "lowercase", "text": "JAVA 架构师" } { "tokenizer": "standard", "filter": ["lowercase"], "text": "JAVA 架构师" }
html字符过滤 { "tokenizer": "ik_max_word", "filter": ["lowercase"], "char_filter": [ "html_strip" ], "text": "我是<br> <b>JAVA 架构师</b>" }
Elasticsearch分词器 elasticsearch5.0基于url的搜索接口

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