此文章的所有访问操作都需要使用Apifox等接口调用软件

一、基本语法操作

1.创建索引

http://192.168.87.128:9200/shopping

2.查询单个索引

http://192.168.87.128:9200/shopping

3.删除单个索引

 http://192.168.87.128:9200/shopping

二、高级使用

1.文档创建

http://192.168.87.128:9200/dept/_doc

{
    "id": 3,
    "parentId": 0,
    "deptName": "通讯部",
    "orderCode": "0002",
    "isStart": 1,
    "address": "北京大街120号",
    "description": "通讯部门"
  }

2.指定id创建文档

当没有指定id时创建文档,会随机生成字符串id,如下

当需要指定创建文档的id时，只需要吧路径改成下列路径即可

http://192.168.87.128:9200/dept/_doc/1008

路径后面增加指定的id

3.全局查询

http://192.168.87.128:9200/dept/_search

4.指定id查询

http://192.168.87.128:9200/dept/_doc/1001

5.指定字段查询

5.1关键字段查询

//查询地址带有“上海”字段的数据
{
    "query":{
        "match":{
            "address":"上海"
        }
    }
}

5.2查询所有

{
    "query":{
        "match_all":{
        }
    }
}

5.3查询指定字段

{
    "query": {
        "match_all": {}
    },
    "_source":["deptName","address"]
}

5.4分页查询

{
    "query": {
        "match_all": {}
    },
    "from": 0,
    "size": 3
}

返回下列信息

{
    "took": 1,
    "timed_out": false,
    "_shards": {
        "total": 1,
        "successful": 1,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": {
            "value": 8, //共有8条数据
            "relation": "eq"
        },
        "max_score": 1,
        "hits": [
            {
                "_index": "dept",
                "_type": "_doc",
                "_id": "m2A0yYAB3wdmtvVQI2j-",
                "_score": 1,
                "_source": {
                    "id": 3,
                    "parentId": 0,
                    "deptName": "通讯部",
                    "orderCode": "0002",
                    "isStart": 1,
                    "address": "北京大街120号",
                    "description": "通讯部门"
                }
            },
            {
                "_index": "dept",
                "_type": "_doc",
                "_id": "1001",
                "_score": 1,
                "_source": {
                    "id": 1002,
                    "parentId": 0,
                    "deptName": "销售部",
                    "orderCode": "1002",
                    "isStart": 1,
                    "address": "北京大街110号",
                    "description": "销售部门"
                }
            },
            {
                "_index": "dept",
                "_type": "_doc",
                "_id": "1002",
                "_score": 1,
                "_source": {
                    "id": 1001,
                    "parentId": 0,
                    "deptName": "技术部",
                    "orderCode": "0002",
                    "isStart": 1,
                    "address": "北京大街120号",
                    "description": "技术部"
                }
            }
        ]
    }
}

5.5排序查询

注意排序的字段必须为文档中的关键字，否则可能会报错

{
    "query": {
        "match_all": {}
    },
    "sort": {
        "id":{
            "order":"desc"
        }
    }
}

6.多条件查询

{
    "query":{
        "bool":{
            "must":[
                {
                    "match":{
                        "deptName":"销售"
                    }
                },
                {
                    "match":{
                        "address":"北京"
                    }
                }
            ]
        }
  }
}

1. bool代表条件
2. must代表条件组合相当于and

{
    "query":{
        "bool":{
            "should":[
                {
                    "match":{
                        "deptName":"销售"
                    }
                },
                {
                    "match":{
                        "deptName":"技术"
                    }
                }
            ]
        }
  }
}

1. should相当于or，查询销售部和技术部数据

7. 范围查询

{
    "query":{
        "bool":{
            "should":[
                {
                    "match":{
                        "deptName":"销售"
                    }
                },
                {
                    "match":{
                        "deptName":"技术"
                    }
                }
            ],
            "filter":{
                "range":{
                    "id":{
                        "gt":1001
                    }
                }
            }
        }
  }
}

1. filter代表范围查询
2. gt代表大约，lt代表小于