| | package osm.jp.coverage.busstop; |
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| | |
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| | import java.io.BufferedWriter; |
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| | import java.io.File; |
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| | import java.io.FileOutputStream; |
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| | import java.io.OutputStreamWriter; |
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| | import java.sql.Connection; |
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| | import java.sql.PreparedStatement; |
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| | import java.sql.ResultSet; |
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| | |
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| | import jp.co.areaweb.tools.database.DatabaseTool; |
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| | |
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| | /** |
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| | * PostGISデータをGeoJSONファイルに出力する。 |
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| | * 出力ファイル名: "busstop.json" |
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| | * テーブル名: t_busstop |
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| | * fixed OSMの周辺に存在するかどうか、存在しない場合は0,存在する場合は1。ブランド有りは50。 |
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| | * geom PostGIS形式の位置情報(4612:) |
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| | * SELECT row_to_json(feature) FROM ( |
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| | select 'Feature' As type, ST_AsGeoJSON(ST_Transform(t_busstop.geom,4326))::json As geometry, row_to_json(( |
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| | SELECT p FROM (SELECT t_busstop.idref, t_busstop.fixed) AS p)) AS properties From t_busstop) As feature |
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| | * |
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| | * @author yuu |
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| | * |
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| | */ |
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| | public class ToGeoJSON { |
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| | public static void main (String[] argv) throws Exception { |
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| | Connection con = DatabaseTool.openDb("postgis"); |
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| | outputDb(con, "WHERE fixed=0", new File("busstop0.json")); |
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| | outputDb(con, "WHERE fixed=1", new File("busstop1.json")); |
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| | outputDb(con, "WHERE fixed>1", new File("busstop2.json")); |
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| | } |
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| | |
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| | public static void outputDb(Connection con, String whereStr, File outputFile) throws Exception { |
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| | try (BufferedWriter ow = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(outputFile), "UTF-8"))) { |
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| | String line = "{" + |
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| | "\"type\": \"FeatureCollection\"," + |
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| | "\"features\": ["; |
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| | System.out.println(line); |
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| | ow.write(line); |
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| | ow.newLine(); |
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| | |
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| | PreparedStatement ps8 = con.prepareStatement("SELECT row_to_json(feature) FROM (" |
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| | + "select 'Feature' As type, ST_AsGeoJSON(ST_Transform(t_busstop.geom,4326))::json As geometry From t_busstop "+ whereStr +" order by area,gmlid) As feature"); |
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| | try (ResultSet rset8 = ps8.executeQuery()) { |
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| | boolean top = true; |
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| | while (rset8.next()) { |
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| | if (top) { |
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| | top = false; |
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| | } |
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| | else { |
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| | line = ","; |
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| | System.out.println(line); |
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| | ow.write(line); |
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| | ow.newLine(); |
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| | } |
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| | line = rset8.getString(1); |
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| | System.out.print(line); |
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| | ow.write(line); |
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| | } |
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| | } |
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| | System.out.println(); |
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| | ow.newLine(); |
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| | |
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| | line = "]}"; |
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| | System.out.println(line); |
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| | ow.write(line); |
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| | ow.newLine(); |
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| | ow.flush(); |
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| | } |
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| | } |
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| | } |
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