geospatial类型详解

geospatial类型详解

添加地理位置

# geoadd 
# 规则：南极北极无法添加，一般会直接下载城市数据，通过java程序一次性导入进去
# 一般都是
127.0.0.1:6379[3]> geoadd China:city 116.397128 39.916527 Beijing
(integer) 1
127.0.0.1:6379[3]> geoadd China:city 121.48941 31.40527 Shanghai
(integer) 1
127.0.0.1:6379[3]> geoadd China:city 108.93425 34.23053 Xi'an
Invalid argument(s)
127.0.0.1:6379[3]> geoadd China:city 108.93425 34.23053 Xian
(integer) 1
127.0.0.1:6379[3]> geoadd China:city 120.21201 30.2084 Hangzhou
(integer) 1
127.0.0.1:6379[3]> geoadd China:city 113.27324 23.15792 Guangzhou
(integer) 1
127.0.0.1:6379[3]> geoadd China:city 113.88308 22.55329 Shenzhen

获取

# geoops
127.0.0.1:6379[3]> geopos China:City Beijing
1) (nil)
127.0.0.1:6379[3]> geopos China:city Beijing
1) 1) "116.39712899923324585"
   2) "39.91652647362980844"
127.0.0.1:6379[3]> geopos China:city beijing
1) (nil)
127.0.0.1:6379[3]> geopos China:city Xian
1) 1) "108.93425256013870239"
   2) "34.23053097599082406"

计算距离

# geodist 单位km千米 mi英里 ft英尺
127.0.0.1:6379[3]> geodist China:city Beijing Shanghai
"1052105.5643"
127.0.0.1:6379[3]> geodist China:city Beijing Shanghai km
"1052.1056"
127.0.0.1:6379[3]> geodist China:city Beijing Xian km
"915.0863"

找出一定半径内的地方

# georadius 可用于附近的人
127.0.0.1:6379[3]> georadius China:city 110 30 1000 km # 获取 110,30这个经纬度为中心，方圆1000km内的城市
1) "Xian"
2) "Shenzhen"
3) "Guangzhou"
4) "Hangzhou"
127.0.0.1:6379[3]> georadius China:city 110 30 500 km # 获取 110,30这个经纬度为中心，方圆500km内的城市
1) "Xian"
127.0.0.1:6379[3]> georadius China:city 110 30 500 km withcoord# 获取 110,30这个经纬度为中心，方圆500km内的城市 带上经纬度信息
1) 1) "Xian"
   2) 1) "108.93425256013870239"
      2) "34.23053097599082406"
127.0.0.1:6379[3]> georadius China:city 110 30 500 km withcoord withdist # 获取 110,30这个经纬度为中心，方圆500km内的城市 带上经纬度信息和距离信息
1) 1) "Xian"
   2) "481.1278"
   3) 1) "108.93425256013870239"
      2) "34.23053097599082406"
127.0.0.1:6379[3]> georadius China:city 110 30 500 km withcoord withdist withhash # 获取 110,30这个经纬度为中心，方圆500km内的城市 带上经纬度信息和距离信息还有hash值
1) 1) "Xian"
   2) "481.1278"
   3) (integer) 4040115270369361
   4) 1) "108.93425256013870239"
      2) "34.23053097599082406"
127.0.0.1:6379[3]> georadius China:city 110 30 1000 km withcoord withdist count 2# 获取 110,30这个经纬度为中心，方圆1000km内的城市 带上经纬度信息和距离信息 只筛选出2个
1) 1) "Xian"
   2) "481.1278"
   3) 1) "108.93425256013870239"
      2) "34.23053097599082406"
2) 1) "Guangzhou"
   2) "827.6084"
   3) 1) "113.27324062585830688"
      2) "23.1579209662846921"

以某个成员为中心找到方圆一定距离的数据

# georadiusbymember
127.0.0.1:6379[3]> georadiusbymember China:city Beijing 1000 km
1) "Beijing"
2) "Xian"

返回哈希值

# geohash 返回11个数值的 geohash字符串
# 将二维的经纬度转换为一维的字符串，如果两个位置越近，两个字符串越接近
127.0.0.1:6379[3]> geohash China:city Beijing
1) "wx4g0dtf9e0"

底层实现

geo的底层实现是zset

删除

# zrange
# zrem 
127.0.0.1:6379[3]> zrange China:city 0 -1
1) "Xian"
2) "Shenzhen"
3) "Guangzhou"
4) "Hangzhou"
5) "Shanghai"
6) "Beijing"
127.0.0.1:6379[3]> zrem China:city Beijing
(integer) 1
127.0.0.1:6379[3]> zrange China:city 0 -1
1) "Xian"
2) "Shenzhen"
3) "Guangzhou"
4) "Hangzhou"
5) "Shanghai"