Question

由于Geojson是实际的json我以为我可以使用mongoimport从.geojson文件将数据加载到我的MongoDB数据库中。

但是我收到以下错误：

exception:BSON representation of supplied JSON is too large: code FailedToParse: FailedToParse: Expecting '{': offset:0

该文件为25MB，这是它的一个片段：

{
"type": "FeatureCollection",
"features": [
{
    "type": "Feature",
    "id": "node/2661561690",
    "properties": {
        "timestamp": "2014-02-08T17:58:24Z",
        "version": "1",
        "changeset": "20451306",
        "user": "Schandlers",
        "uid": "51690",
        "natural": "tree",
        "id": "node/2661561690"
    },
    "geometry": {
        "type": "Point",
        "coordinates": [
            -66.9162255,
            10.5056439
        ]
    }
},
// ... Omitted data
{
    "type": "Feature",
    "id": "node/2664472516",
    "properties": {
        "timestamp": "2014-02-10T04:27:30Z",
        "version": "2",
        "changeset": "20477473",
        "user": "albertoq",
        "uid": "527105",
        "name": "Distribuidora Brithijos (Aceites)",
        "shop": "car_parts",
        "id": "node/2664472516"
    },
    "geometry": {
        "type": "Point",
        "coordinates": [
            -66.9388903,
            10.4833647
        ]
    }
}
]
}

Answer 1

下载jq（这是类似sed的程序，但是对于JSON）

然后运行：

jq --compact-output ".features" input.geojson > output.geojson

然后

mongoimport --db dbname -c collectionname --file "output.geojson" --jsonArray

Answer 2

现在你有一系列功能。 MongoDB会将此视为一个文档。尝试从geojson的开头删除以下内容：

{
"type": "FeatureCollection",
"features": [

此外，从geojson的末尾删除以下内容：

]
}

编辑 - 此外，mongo预计每行一个文档。因此，请确保您的文件之间只有\ n！ e.g。

...    
},\n
    {
        "type": "Feature",
        "id": "node/2664472516",
...

Answer 3

首先，为了验证您的GeoJSON文件是否准确，您可以使用Geojsonlint，QGIS等等。

然后，要将数据导入您的收藏集，请使用Mongoimport：

mongoimport --db MY_DATABASE_NAME -c MY_COLLECTION_NAME --type json --file "MY_GEOJSON_FILENAME"

用您的有效名称替换上面的3个变量。显然，请确保您当前的目录包含该文件。

Answer 4

ParoX的想法效果很好，但是有16MB的限制。

mongodb document

- jsonArray接受在单个JSON数组中使用多个MongoDB文档表示的数据导入。仅限进口16 MB或小。

如果文件大小超过16MB，则可以执行此操作

jq --compact-output“.features []”input.geojson＆gt; output.geojson

这将为您提供一个对象的一行，最后没有逗号。

{.....}
{.......}
{...}

{"type":"Feature","geometry":{"type":"Point","coordinates":[-80.87088507656375,35.21515162500578]},"properties":{"name":"ABBOTT NEIGHBORHOOD PARK","address":"1300  SPRUCE ST"}}
{"type":"Feature","geometry":{"type":"Point","coordinates":[-80.83775386582222,35.24980190252168]},"properties":{"name":"DOUBLE OAKS CENTER","address":"1326 WOODWARD AV"}}
{"type":"Feature","geometry":{"type":"Point","coordinates":[-80.83827000459532,35.25674709224663]},"properties":{"name":"DOUBLE OAKS NEIGHBORHOOD PARK","address":"2605  DOUBLE OAKS RD"}}
{"type":"Feature","geometry":{"type":"Point","coordinates":[-80.83697759172735,35.25751734669229]},"properties":{"name":"DOUBLE OAKS POOL","address":"1200 NEWLAND RD"}}
{"type":"Feature","geometry":{"type":"Point","coordinates":[-80.81647652154736,35.40148708491418]},"properties":{"name":"DAVID B. WAYMER FLYING REGIONAL PARK","address":"15401 HOLBROOKS RD"}}
{"type":"Feature","geometry":{"type":"Point","coordinates":[-80.83556459443902,35.39917224760999]},"properties":{"name":"DAVID B. WAYMER COMMUNITY PARK","address":"302 HOLBROOKS RD"}}
{"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[-80.72487831115721,35.26545403190955],[-80.72135925292969,35.26727607954368],[-80.71517944335938,35.26769654625573],[-80.7125186920166,35.27035945142482],[-80.70857048034668,35.268257165144064],[-80.70479393005371,35.268397319259996],[-80.70324897766113,35.26503355355979],[-80.71088790893555,35.2553619492954],[-80.71681022644043,35.2553619492954],[-80.7150936126709,35.26054831539319],[-80.71869850158691,35.26026797976481],[-80.72032928466797,35.26061839914875],[-80.72264671325684,35.26033806376283],[-80.72487831115721,35.26545403190955]]]},"properties":{"name":"Plaza Road Park"}}

mongoimport --db dbname -c collectionname --file“output.geojson”--jsonArray

Answer 5

此Python脚本旨在通过一步将GeoJSON文件导入MongoDB：https://github.com/rtbigdata/geojson-mongo-import.py

Answer 6

如果问题是您的文档集大小超过16Mb，则可以使用batchSize选项，该选项设置批处理中的文档数。例如：

mongoimport -d mydb -c mycol data.json -j 4 --batchSize=100

请注意-j选项，它有助于通过使用多个工作程序来增加数据库的输出。

使用'mongoimport'的' - help'选项奇怪地没有记录batchSize选项，去图！

如何将Geojson文件导入MongoDB

6 个答案: