定义

通过 URI query 实现搜索

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指定字段 v.s 范查询

q=title:2012
q=2012 查询所有字段

Term v.s Phrase

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Phrase 查询: 必须同时出现，且符 合顺序

分组与引号

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布尔查询

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分组

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%2B 表示 “+”

范围查询

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算数符号

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通配符查询（效率低，占用内存大，不建议使用。 特别是放在最前面）

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正则表达

title:[bt]oy

模糊匹配与近似查询

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#基本查询
GET /movies/_search?q=2012&df=title&sort=year:desc&from=0&size=10&timeout=1s

#带profile
GET /movies/_search?q=2012&df=title
{
    "profile":"true"
}


#泛查询，正对_all,所有字段
GET /movies/_search?q=2012
{
    "profile":"true"
}

#指定字段
GET /movies/_search?q=title:2012&sort=year:desc&from=0&size=10&timeout=1s
{
    "profile":"true"
}


# 查找美丽心灵, Mind为泛查询
GET /movies/_search?q=title:Beautiful Mind
{
    "profile":"true"
}

# 泛查询
GET /movies/_search?q=title:2012
{
    "profile":"true"
}

#使用引号，Phrase查询
GET /movies/_search?q=title:"Beautiful Mind"
{
    "profile":"true"
}

#分组，Bool查询
GET /movies/_search?q=title:(Beautiful Mind)
{
    "profile":"true"
}


#布尔操作符
# 查找美丽心灵
GET /movies/_search?q=title:(Beautiful AND Mind)
{
    "profile":"true"
}

# 查找美丽心灵
GET /movies/_search?q=title:(Beautiful NOT Mind)
{
    "profile":"true"
}

# 查找美丽心灵
GET /movies/_search?q=title:(Beautiful %2BMind)
{
    "profile":"true"
}


#范围查询 ,区间写法
GET /movies/_search?q=title:beautiful AND year:[2002 TO 2018%7D
{
    "profile":"true"
}


#通配符查询
GET /movies/_search?q=title:b*
{
    "profile":"true"
}

//模糊匹配&近似度匹配
GET /movies/_search?q=title:beautifl~1
{
    "profile":"true"
}

GET /movies/_search?q=title:"Lord Rings"~2
{
    "profile":"true"
}

相关阅读

• https://www.elastic.co/guide/en/elasticsearch/reference/7.0/search-uri-request.html
• https://www.elastic.co/guide/en/elasticsearch/reference/7.0/search-search.html