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13693261870

2022-12-29 1d53dd8f501a98ddcce8146443b51b357ef5f9b1

 src/main/java/com/lf/server/helper/GdalHelper.java

@@ -1,7 +1,5 @@
package com.lf.server.helper;

import com.lf.server.entity.ctrl.MarkJsonEntity;
import com.lf.server.entity.ctrl.ShpRecordEntity;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.gdal.gdal.Band;
@@ -12,7 +10,6 @@
import org.gdal.ogr.*;
import org.gdal.osr.SpatialReference;

import java.io.File;
import java.sql.Time;
import java.sql.Timestamp;
import java.time.LocalDate;
@@ -31,7 +28,7 @@
public class GdalHelper {
    private final static Log log = LogFactory.getLog(GdalHelper.class);

    static {
    public static void init() {
        // 注册所有的驱动
        gdal.AllRegister();

@@ -44,112 +41,8 @@

        // 为了使属性表字段支持中文，请添加下面这句：CP936
        gdal.SetConfigOption("SHAPE_ENCODING", "");
    }

    /**
     * 读取Shp第一条记录的WKT
     */
    public static ShpRecordEntity readShpFirstRecord(String filePath) {
        try {
            org.gdal.ogr.Driver driver = ogr.GetDriverByName("ESRI shapefile");
            if (driver == null) {
                return null;
            }

            DataSource dataSource = driver.Open(filePath);
            Layer layer = dataSource.GetLayer(0);
            if (layer.GetFeatureCount() < 1) {
                return null;
            }

            SpatialReference spatialReference = layer.GetSpatialRef();
            String csid = spatialReference.GetAttrValue("AUTHORITY", 1);

            Feature feature = layer.GetFeature(0);
            String wkt = feature.GetGeometryRef().ExportToWkt();

            layer.delete();
            dataSource.delete();
            driver.delete();

            return new ShpRecordEntity(wkt, csid);
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
            return null;
        }
    }

    /**
     * 创建ShapeFile文件
     *
     * @param list 标绘JSON实体类集合
     * @param path 路径
     * @param type 类型：POINT,LINESTRING,POLYGON
     * @return ShapeFile文件名
     */
    public static String createShp(List<MarkJsonEntity> list, String path, String type) {
        try {
            org.gdal.ogr.Driver driver = ogr.GetDriverByName("ESRI shapefile");
            if (driver == null) {
                return null;
            }

            String filePath = path + File.separator + type.toLowerCase() + ".shp";
            //DataSource ds = driver.Open(filePath, 0);
            DataSource ds = driver.CreateDataSource(filePath, null);

            SpatialReference sr = new SpatialReference();
            sr.ImportFromEPSG(4326);

            int geoType = getGeometryType(type);
            Layer layer = ds.CreateLayer(type.toLowerCase(), sr, geoType);

            FieldDefn fdName = new FieldDefn("name", ogr.OFTString);
            fdName.SetWidth(50);
            layer.CreateField(fdName, 0);

            FieldDefn fdProps = new FieldDefn("props", ogr.OFTString);
            fdProps.SetWidth(1024);
            // layer.DeleteField(layer.FindFieldIndex("name", 1));
            layer.CreateField(fdProps, 1);

            FeatureDefn featureDefn = layer.GetLayerDefn();
            for (MarkJsonEntity mje : list) {
                Geometry geo = Geometry.CreateFromWkt(mje.getWkt());

                Feature f = new Feature(featureDefn);
                f.SetField(0, mje.getName());
                f.SetField(1, mje.getProps());
                f.SetGeometry(geo);

                layer.CreateFeature(f);
            }

            layer.delete();
            ds.delete();
            driver.delete();

            return filePath;
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
            return null;
        }
    }

    /**
     * 获取图形类型
     */
    private static int getGeometryType(String type) {
        switch (type) {
            case "POINT":
                return 1;
            case "LINESTRING":
                return 2;
            case "POLYGON":
                return 3;
            default:
                return -1;
        }
        gdal.SetConfigOption("PGEO_DRIVER_TEMPLATE", "DRIVER=Microsoft Access Driver (*.mdb, *.accdb);DBQ=%s");
        gdal.SetConfigOption("MDB_DRIVER_TEMPLATE", "DRIVER=Microsoft Access Driver (*.mdb, *.accdb);DBQ=%s");
    }

    /**
@@ -238,7 +131,7 @@
                break;
            }
        } catch (Exception ex) {
            ex.printStackTrace();
            log.error(ex.getMessage(), ex);
        }
    }

@@ -301,8 +194,8 @@
                //layerDto.setCount(count);
                //layerDto.setMap(mapList);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
        } finally {
            if (dataSource != null) {
                dataSource.delete();
@@ -347,11 +240,11 @@
                } while (true);
            }
        } catch (Exception ex) {
            ex.printStackTrace();
            log.error(ex.getMessage(), ex);
        }
    }

    private static Object getProperty(Feature feature, int index) {
    public static Object getProperty(Feature feature, int index) {
        int type = feature.GetFieldType(index);

        PropertyGetter propertyGetter;