Geotools 无法解析具有自定义属性的 GeoJSON 文件

Geotools fails to parse a GeoJSON file with custom properties

我正在使用 geotools 17.2 解析 GeoJSON 文件,如下所示:

try (FileInputStream is = new FileInputStream(routeFile)) {
    FeatureJSON io = new FeatureJSON();
    return io.readFeatureCollection(is);
}

我使用的 GeoJSON 文件如下:

{
  "type": "FeatureCollection",
  "features": [{
    "type": "Feature",
    "properties": { },
    "geometry": {
      "type": "Point",
      "coordinates": [125.6, 10.1]
      }
    }, {
      "type": "Feature",
      "properties": { "name": "test" },
      "geometry": {
        "type": "Point",
        "coordinates": [44.912109375, 53.64463782485651]
      }
    }
  ]
}

解析失败,出现以下错误message/stacktrace:

Caused by: java.lang.IllegalArgumentException: No such attribute:name
    at org.geotools.feature.simple.SimpleFeatureBuilder.set(SimpleFeatureBuilder.java:288)
    at org.geotools.geojson.feature.FeatureHandler.endObject(FeatureHandler.java:176)
    at org.geotools.geojson.DelegatingHandler.endObject(DelegatingHandler.java:81)
    at org.geotools.geojson.feature.FeatureCollectionHandler.endObject(FeatureCollectionHandler.java:121)
    at org.json.simple.parser.JSONParser.parse(Unknown Source)
    at org.geotools.geojson.feature.FeatureJSON$FeatureCollectionIterator.readNext(FeatureJSON.java:746)

但是如果我把名字属性移到第一个点,那么解析就成功了。有没有办法让 geotools 在自定义属性方面更灵活一些? (或者这是库中的错误?)

您需要使用 readFeatureCollectionSchema 的第二种形式,它采用布尔值来强制 geotools 读取整个文件以计算出模式。