postGIS 空间相交查询

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我是靠谱客的博主成就冬瓜，这篇文章主要介绍postGIS 空间相交查询，现在分享给大家，希望可以做个参考。

1.带参数的sql语句

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select gid as objectid,name,height,houseid,ST_AsGeoJson(geom) as geometry from changqing_polygon_house t where ST_Intersects(t.geom,ST_GeomFromGeoJSON($1))

2.变量赋值如下：

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var _querygeo = {"type":"Polygon",
    "coordinates":[[
        [114.23855855512208,30.64923619559406],
        [114.23991437809549,30.648874539105623],
        [114.23962204548032,30.64782926594492],
        [114.23822281860078,30.648105194339692],
        [114.23822820493294,30.648110441141277],
        [114.23855855512208,30.64923619559406]
    ]]};

需要转换为字符串后，再传值到sql变量数组中！记得坐标系和postgresql空间表保持一致