how to insert polygon to PostGIS using JDBC












0















I am getting polygon as a set of points. (text or JSON representation)



I need to do the following:



1) insert polygon to PostGIS using JDBC



2) I am getting an object coordinate ( point ) and I need to check if this point inside polygons or not.



I saw different examples but I didn't find any which is using JDBC ( Java ).



Can you please share the simple java snippet or pointing me to already an existing example.



Note polygon in my case is not a cycle



Thanks
Oleg.










share|improve this question



























    0















    I am getting polygon as a set of points. (text or JSON representation)



    I need to do the following:



    1) insert polygon to PostGIS using JDBC



    2) I am getting an object coordinate ( point ) and I need to check if this point inside polygons or not.



    I saw different examples but I didn't find any which is using JDBC ( Java ).



    Can you please share the simple java snippet or pointing me to already an existing example.



    Note polygon in my case is not a cycle



    Thanks
    Oleg.










    share|improve this question

























      0












      0








      0








      I am getting polygon as a set of points. (text or JSON representation)



      I need to do the following:



      1) insert polygon to PostGIS using JDBC



      2) I am getting an object coordinate ( point ) and I need to check if this point inside polygons or not.



      I saw different examples but I didn't find any which is using JDBC ( Java ).



      Can you please share the simple java snippet or pointing me to already an existing example.



      Note polygon in my case is not a cycle



      Thanks
      Oleg.










      share|improve this question














      I am getting polygon as a set of points. (text or JSON representation)



      I need to do the following:



      1) insert polygon to PostGIS using JDBC



      2) I am getting an object coordinate ( point ) and I need to check if this point inside polygons or not.



      I saw different examples but I didn't find any which is using JDBC ( Java ).



      Can you please share the simple java snippet or pointing me to already an existing example.



      Note polygon in my case is not a cycle



      Thanks
      Oleg.







      java jdbc polygon postgis






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 20 '18 at 16:40









      user2779840user2779840

      63




      63
























          1 Answer
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          1) You can use something like that



                  String url = "jdbc:postgresql://localhost:5432/test";
          try (java.sql.Connection conn = DriverManager.getConnection(url, "user", "password")) {
          Class.forName("org.postgresql.Driver");
          GeometryFactory geometryFactory = new GeometryFactory(new PrecisionModel(), 4326);
          PackedCoordinateSequenceFactory csFactory = new PackedCoordinateSequenceFactory();
          CoordinateSequence sequence = csFactory.create(5, 2);
          sequence.setOrdinate(0 /*first point*/, 0, 92.63671875);
          sequence.setOrdinate(0 /*first point*/, 1, 56.88500172043518);
          sequence.setOrdinate(1, 0, 101.66748046874999);
          sequence.setOrdinate(1, 1, 56.88500172043518);
          sequence.setOrdinate(2, 0, 101.66748046874999);
          sequence.setOrdinate(2, 1, 59.80063426102869);
          sequence.setOrdinate(3, 0, 92.63671875);
          sequence.setOrdinate(3, 1, 59.80063426102869);
          sequence.setOrdinate(4 /*closed point*/, 0, 92.63671875);
          sequence.setOrdinate(4 /*closed point*/, 1, 56.88500172043518);
          // pass an array of Coordinate or a CoordinateSequence
          Polygon geo = geometryFactory.createPolygon(sequence);
          // you can use it to check if this point inside polygons
          // or you can use just query, something like that SELECT * FROM table_name WHERE st_contains(geom, your_point)
          boolean isContains = geo.contains(geometryFactory.createPoint(new Coordinate(99.404296875,
          58.60261057364717)));
          WKBWriter writer = new WKBWriter();
          PreparedStatement preparedStatement =
          conn.prepareStatement("INSERT INTO table_name (geom) VALUES (ST_GeomFromWKB(?, 4326))");
          preparedStatement.setBytes(1, writer.write(geo));
          int rows = preparedStatement.executeUpdate();
          if (rows > 0) {
          System.out.println(" Successful insert! ");
          } else {
          System.out.println(" Failed insert!");
          }
          preparedStatement.close();
          } catch (Exception e) {
          e.printStackTrace();
          }
          dependencies for that (pom.xml, use repository http://repo.boundlessgeo.com/main/):

          `<dependencies>
          <dependency>
          <groupId>org.locationtech.jts</groupId>
          <artifactId>jts-core</artifactId>
          <version>1.16.0</version>
          </dependency>
          <dependency>
          <groupId>org.locationtech.jts</groupId>
          <artifactId>jts-modules</artifactId>
          <version>1.16.0</version>
          <type>pom</type>
          </dependency>
          <dependency>
          <groupId>org.geotools</groupId>
          <artifactId>gt-main</artifactId>
          <version>20.1</version>
          </dependency>
          <dependency>
          <groupId>org.geotools</groupId>
          <artifactId>gt-geojson</artifactId>
          <version>20.1</version>
          </dependency>
          <dependency>
          <groupId>org.geotools.jdbc</groupId>
          <artifactId>gt-jdbc-postgis</artifactId>
          <version>20.1</version>
          <scope>test</scope>
          </dependency>
          <dependency>
          <groupId>org.postgresql</groupId>
          <artifactId>postgresql</artifactId>
          <version>42.2.1</version>
          <scope>compile</scope>
          </dependency>
          </dependencies>`


          2) You can use jts for that (as you can see above) or you can use Postgis query like that



              SELECT * FROM table_name
          WHERE st_contains(geom, st_setsrid(st_makepoint(99.404296875, 58.60261057364717), 4326))





          share|improve this answer























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            1 Answer
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            1 Answer
            1






            active

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            oldest

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            active

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            1














            1) You can use something like that



                    String url = "jdbc:postgresql://localhost:5432/test";
            try (java.sql.Connection conn = DriverManager.getConnection(url, "user", "password")) {
            Class.forName("org.postgresql.Driver");
            GeometryFactory geometryFactory = new GeometryFactory(new PrecisionModel(), 4326);
            PackedCoordinateSequenceFactory csFactory = new PackedCoordinateSequenceFactory();
            CoordinateSequence sequence = csFactory.create(5, 2);
            sequence.setOrdinate(0 /*first point*/, 0, 92.63671875);
            sequence.setOrdinate(0 /*first point*/, 1, 56.88500172043518);
            sequence.setOrdinate(1, 0, 101.66748046874999);
            sequence.setOrdinate(1, 1, 56.88500172043518);
            sequence.setOrdinate(2, 0, 101.66748046874999);
            sequence.setOrdinate(2, 1, 59.80063426102869);
            sequence.setOrdinate(3, 0, 92.63671875);
            sequence.setOrdinate(3, 1, 59.80063426102869);
            sequence.setOrdinate(4 /*closed point*/, 0, 92.63671875);
            sequence.setOrdinate(4 /*closed point*/, 1, 56.88500172043518);
            // pass an array of Coordinate or a CoordinateSequence
            Polygon geo = geometryFactory.createPolygon(sequence);
            // you can use it to check if this point inside polygons
            // or you can use just query, something like that SELECT * FROM table_name WHERE st_contains(geom, your_point)
            boolean isContains = geo.contains(geometryFactory.createPoint(new Coordinate(99.404296875,
            58.60261057364717)));
            WKBWriter writer = new WKBWriter();
            PreparedStatement preparedStatement =
            conn.prepareStatement("INSERT INTO table_name (geom) VALUES (ST_GeomFromWKB(?, 4326))");
            preparedStatement.setBytes(1, writer.write(geo));
            int rows = preparedStatement.executeUpdate();
            if (rows > 0) {
            System.out.println(" Successful insert! ");
            } else {
            System.out.println(" Failed insert!");
            }
            preparedStatement.close();
            } catch (Exception e) {
            e.printStackTrace();
            }
            dependencies for that (pom.xml, use repository http://repo.boundlessgeo.com/main/):

            `<dependencies>
            <dependency>
            <groupId>org.locationtech.jts</groupId>
            <artifactId>jts-core</artifactId>
            <version>1.16.0</version>
            </dependency>
            <dependency>
            <groupId>org.locationtech.jts</groupId>
            <artifactId>jts-modules</artifactId>
            <version>1.16.0</version>
            <type>pom</type>
            </dependency>
            <dependency>
            <groupId>org.geotools</groupId>
            <artifactId>gt-main</artifactId>
            <version>20.1</version>
            </dependency>
            <dependency>
            <groupId>org.geotools</groupId>
            <artifactId>gt-geojson</artifactId>
            <version>20.1</version>
            </dependency>
            <dependency>
            <groupId>org.geotools.jdbc</groupId>
            <artifactId>gt-jdbc-postgis</artifactId>
            <version>20.1</version>
            <scope>test</scope>
            </dependency>
            <dependency>
            <groupId>org.postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <version>42.2.1</version>
            <scope>compile</scope>
            </dependency>
            </dependencies>`


            2) You can use jts for that (as you can see above) or you can use Postgis query like that



                SELECT * FROM table_name
            WHERE st_contains(geom, st_setsrid(st_makepoint(99.404296875, 58.60261057364717), 4326))





            share|improve this answer




























              1














              1) You can use something like that



                      String url = "jdbc:postgresql://localhost:5432/test";
              try (java.sql.Connection conn = DriverManager.getConnection(url, "user", "password")) {
              Class.forName("org.postgresql.Driver");
              GeometryFactory geometryFactory = new GeometryFactory(new PrecisionModel(), 4326);
              PackedCoordinateSequenceFactory csFactory = new PackedCoordinateSequenceFactory();
              CoordinateSequence sequence = csFactory.create(5, 2);
              sequence.setOrdinate(0 /*first point*/, 0, 92.63671875);
              sequence.setOrdinate(0 /*first point*/, 1, 56.88500172043518);
              sequence.setOrdinate(1, 0, 101.66748046874999);
              sequence.setOrdinate(1, 1, 56.88500172043518);
              sequence.setOrdinate(2, 0, 101.66748046874999);
              sequence.setOrdinate(2, 1, 59.80063426102869);
              sequence.setOrdinate(3, 0, 92.63671875);
              sequence.setOrdinate(3, 1, 59.80063426102869);
              sequence.setOrdinate(4 /*closed point*/, 0, 92.63671875);
              sequence.setOrdinate(4 /*closed point*/, 1, 56.88500172043518);
              // pass an array of Coordinate or a CoordinateSequence
              Polygon geo = geometryFactory.createPolygon(sequence);
              // you can use it to check if this point inside polygons
              // or you can use just query, something like that SELECT * FROM table_name WHERE st_contains(geom, your_point)
              boolean isContains = geo.contains(geometryFactory.createPoint(new Coordinate(99.404296875,
              58.60261057364717)));
              WKBWriter writer = new WKBWriter();
              PreparedStatement preparedStatement =
              conn.prepareStatement("INSERT INTO table_name (geom) VALUES (ST_GeomFromWKB(?, 4326))");
              preparedStatement.setBytes(1, writer.write(geo));
              int rows = preparedStatement.executeUpdate();
              if (rows > 0) {
              System.out.println(" Successful insert! ");
              } else {
              System.out.println(" Failed insert!");
              }
              preparedStatement.close();
              } catch (Exception e) {
              e.printStackTrace();
              }
              dependencies for that (pom.xml, use repository http://repo.boundlessgeo.com/main/):

              `<dependencies>
              <dependency>
              <groupId>org.locationtech.jts</groupId>
              <artifactId>jts-core</artifactId>
              <version>1.16.0</version>
              </dependency>
              <dependency>
              <groupId>org.locationtech.jts</groupId>
              <artifactId>jts-modules</artifactId>
              <version>1.16.0</version>
              <type>pom</type>
              </dependency>
              <dependency>
              <groupId>org.geotools</groupId>
              <artifactId>gt-main</artifactId>
              <version>20.1</version>
              </dependency>
              <dependency>
              <groupId>org.geotools</groupId>
              <artifactId>gt-geojson</artifactId>
              <version>20.1</version>
              </dependency>
              <dependency>
              <groupId>org.geotools.jdbc</groupId>
              <artifactId>gt-jdbc-postgis</artifactId>
              <version>20.1</version>
              <scope>test</scope>
              </dependency>
              <dependency>
              <groupId>org.postgresql</groupId>
              <artifactId>postgresql</artifactId>
              <version>42.2.1</version>
              <scope>compile</scope>
              </dependency>
              </dependencies>`


              2) You can use jts for that (as you can see above) or you can use Postgis query like that



                  SELECT * FROM table_name
              WHERE st_contains(geom, st_setsrid(st_makepoint(99.404296875, 58.60261057364717), 4326))





              share|improve this answer


























                1












                1








                1







                1) You can use something like that



                        String url = "jdbc:postgresql://localhost:5432/test";
                try (java.sql.Connection conn = DriverManager.getConnection(url, "user", "password")) {
                Class.forName("org.postgresql.Driver");
                GeometryFactory geometryFactory = new GeometryFactory(new PrecisionModel(), 4326);
                PackedCoordinateSequenceFactory csFactory = new PackedCoordinateSequenceFactory();
                CoordinateSequence sequence = csFactory.create(5, 2);
                sequence.setOrdinate(0 /*first point*/, 0, 92.63671875);
                sequence.setOrdinate(0 /*first point*/, 1, 56.88500172043518);
                sequence.setOrdinate(1, 0, 101.66748046874999);
                sequence.setOrdinate(1, 1, 56.88500172043518);
                sequence.setOrdinate(2, 0, 101.66748046874999);
                sequence.setOrdinate(2, 1, 59.80063426102869);
                sequence.setOrdinate(3, 0, 92.63671875);
                sequence.setOrdinate(3, 1, 59.80063426102869);
                sequence.setOrdinate(4 /*closed point*/, 0, 92.63671875);
                sequence.setOrdinate(4 /*closed point*/, 1, 56.88500172043518);
                // pass an array of Coordinate or a CoordinateSequence
                Polygon geo = geometryFactory.createPolygon(sequence);
                // you can use it to check if this point inside polygons
                // or you can use just query, something like that SELECT * FROM table_name WHERE st_contains(geom, your_point)
                boolean isContains = geo.contains(geometryFactory.createPoint(new Coordinate(99.404296875,
                58.60261057364717)));
                WKBWriter writer = new WKBWriter();
                PreparedStatement preparedStatement =
                conn.prepareStatement("INSERT INTO table_name (geom) VALUES (ST_GeomFromWKB(?, 4326))");
                preparedStatement.setBytes(1, writer.write(geo));
                int rows = preparedStatement.executeUpdate();
                if (rows > 0) {
                System.out.println(" Successful insert! ");
                } else {
                System.out.println(" Failed insert!");
                }
                preparedStatement.close();
                } catch (Exception e) {
                e.printStackTrace();
                }
                dependencies for that (pom.xml, use repository http://repo.boundlessgeo.com/main/):

                `<dependencies>
                <dependency>
                <groupId>org.locationtech.jts</groupId>
                <artifactId>jts-core</artifactId>
                <version>1.16.0</version>
                </dependency>
                <dependency>
                <groupId>org.locationtech.jts</groupId>
                <artifactId>jts-modules</artifactId>
                <version>1.16.0</version>
                <type>pom</type>
                </dependency>
                <dependency>
                <groupId>org.geotools</groupId>
                <artifactId>gt-main</artifactId>
                <version>20.1</version>
                </dependency>
                <dependency>
                <groupId>org.geotools</groupId>
                <artifactId>gt-geojson</artifactId>
                <version>20.1</version>
                </dependency>
                <dependency>
                <groupId>org.geotools.jdbc</groupId>
                <artifactId>gt-jdbc-postgis</artifactId>
                <version>20.1</version>
                <scope>test</scope>
                </dependency>
                <dependency>
                <groupId>org.postgresql</groupId>
                <artifactId>postgresql</artifactId>
                <version>42.2.1</version>
                <scope>compile</scope>
                </dependency>
                </dependencies>`


                2) You can use jts for that (as you can see above) or you can use Postgis query like that



                    SELECT * FROM table_name
                WHERE st_contains(geom, st_setsrid(st_makepoint(99.404296875, 58.60261057364717), 4326))





                share|improve this answer













                1) You can use something like that



                        String url = "jdbc:postgresql://localhost:5432/test";
                try (java.sql.Connection conn = DriverManager.getConnection(url, "user", "password")) {
                Class.forName("org.postgresql.Driver");
                GeometryFactory geometryFactory = new GeometryFactory(new PrecisionModel(), 4326);
                PackedCoordinateSequenceFactory csFactory = new PackedCoordinateSequenceFactory();
                CoordinateSequence sequence = csFactory.create(5, 2);
                sequence.setOrdinate(0 /*first point*/, 0, 92.63671875);
                sequence.setOrdinate(0 /*first point*/, 1, 56.88500172043518);
                sequence.setOrdinate(1, 0, 101.66748046874999);
                sequence.setOrdinate(1, 1, 56.88500172043518);
                sequence.setOrdinate(2, 0, 101.66748046874999);
                sequence.setOrdinate(2, 1, 59.80063426102869);
                sequence.setOrdinate(3, 0, 92.63671875);
                sequence.setOrdinate(3, 1, 59.80063426102869);
                sequence.setOrdinate(4 /*closed point*/, 0, 92.63671875);
                sequence.setOrdinate(4 /*closed point*/, 1, 56.88500172043518);
                // pass an array of Coordinate or a CoordinateSequence
                Polygon geo = geometryFactory.createPolygon(sequence);
                // you can use it to check if this point inside polygons
                // or you can use just query, something like that SELECT * FROM table_name WHERE st_contains(geom, your_point)
                boolean isContains = geo.contains(geometryFactory.createPoint(new Coordinate(99.404296875,
                58.60261057364717)));
                WKBWriter writer = new WKBWriter();
                PreparedStatement preparedStatement =
                conn.prepareStatement("INSERT INTO table_name (geom) VALUES (ST_GeomFromWKB(?, 4326))");
                preparedStatement.setBytes(1, writer.write(geo));
                int rows = preparedStatement.executeUpdate();
                if (rows > 0) {
                System.out.println(" Successful insert! ");
                } else {
                System.out.println(" Failed insert!");
                }
                preparedStatement.close();
                } catch (Exception e) {
                e.printStackTrace();
                }
                dependencies for that (pom.xml, use repository http://repo.boundlessgeo.com/main/):

                `<dependencies>
                <dependency>
                <groupId>org.locationtech.jts</groupId>
                <artifactId>jts-core</artifactId>
                <version>1.16.0</version>
                </dependency>
                <dependency>
                <groupId>org.locationtech.jts</groupId>
                <artifactId>jts-modules</artifactId>
                <version>1.16.0</version>
                <type>pom</type>
                </dependency>
                <dependency>
                <groupId>org.geotools</groupId>
                <artifactId>gt-main</artifactId>
                <version>20.1</version>
                </dependency>
                <dependency>
                <groupId>org.geotools</groupId>
                <artifactId>gt-geojson</artifactId>
                <version>20.1</version>
                </dependency>
                <dependency>
                <groupId>org.geotools.jdbc</groupId>
                <artifactId>gt-jdbc-postgis</artifactId>
                <version>20.1</version>
                <scope>test</scope>
                </dependency>
                <dependency>
                <groupId>org.postgresql</groupId>
                <artifactId>postgresql</artifactId>
                <version>42.2.1</version>
                <scope>compile</scope>
                </dependency>
                </dependencies>`


                2) You can use jts for that (as you can see above) or you can use Postgis query like that



                    SELECT * FROM table_name
                WHERE st_contains(geom, st_setsrid(st_makepoint(99.404296875, 58.60261057364717), 4326))






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 22 '18 at 2:49









                Vlad KonVlad Kon

                362




                362
































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