ReadShp.java代码

package Vector;

import org.gdal.gdal.gdal;

import org.gdal.ogr.*;

import org.gdal.osr.SpatialReference;

import java.util.HashMap;

import java.util.Map;

//读取某个磁盘路径下的shp文件信息(范围、属性等)

public class ReadShp {

public static void main(String[] args) throws Exception {

//指定文件的名字和路径

String strVectorFile ="E:\\test\\test.shp";

// 注册所有的驱动

ogr.RegisterAll();

//配置GDAL_DATA路径(gdal根目录下的bin\gdal-data)

gdal.SetConfigOption("GDAL_DATA","F:\\GDAL学习文件夹\\release-1900-x64-gdal-2-3-2-mapserver-7-2-1\\bin\\gdal-data");

// 为了支持中文路径，请添加下面这句代码

gdal.SetConfigOption("GDAL_FILENAME_IS_UTF8","YES");

// 为了使属性表字段支持中文，请添加下面这句

gdal.SetConfigOption("SHAPE_ENCODING","CP936");

//读取数据，这里以ESRI的shp文件为例

String strDriverName = "ESRI Shapefile";

//创建一个文件，根据strDriverName扩展名自动判断驱动类型

org.gdal.ogr.Driver oDriver =ogr.GetDriverByName(strDriverName);

if (oDriver == null) {

System.out.println(strDriverName+ " 驱动不可用！\n");

return;

}

DataSource dataSource = oDriver.Open(strVectorFile);

Layer layer = dataSource.GetLayer("test");

String layerName = layer.GetName();

System.out.println("图层名称："+layerName);

SpatialReference spatialReference = layer.GetSpatialRef();

//System.out.println(spatialReference);

System.out.println("空间参考坐标系："+spatialReference.GetAttrValue("AUTHORITY",0)+spatialReference.GetAttrValue("AUTHORITY",1));

double[] layerExtent = layer.GetExtent();

System.out.println("图层范围：minx:"+layerExtent[0]+",maxx:"+layerExtent[1]+",miny:"+layerExtent[2]+",maxy:"+layerExtent[3]);

FeatureDefn featureDefn = layer.GetLayerDefn();

int fieldCount = featureDefn.GetFieldCount();

Map fieldMap = new HashMap();

for(int i=0; i

FieldDefn fieldDefn = featureDefn.GetFieldDefn(i);

//得到属性字段类型

int fieldType = fieldDefn.GetFieldType();

String fieldTypeName = fieldDefn.GetFieldTypeName(fieldType);

//得到属性字段名称

String fieldName = fieldDefn.GetName();

fieldMap.put(fieldTypeName,fieldName);

}

long featureCount = layer.GetFeatureCount();

System.out.println("图层要素个数："+featureCount);

for(int i=0; i

Feature feature = layer.GetFeature(i);

Object[] arr = fieldMap.values().toArray();

for(int k=0; k

String fvalue = feature.GetFieldAsString(arr[k].toString());

System.out.print(" 属性名称:"+arr[k].toString()+",属性值:"+fvalue);

}

System.out.println();

}

}

}

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