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"
}
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