GeoTools获取shp文件地理坐标系、投影、字段信息和坐标geometry数据

创建maven工程，加载gt-shapefile依赖包。注意，仓库应该放在依赖后面才能把包都加载完。

1. pom.xml文件

    4.0.0

    org.example
    untitled
    1.0-SNAPSHOT

    
        UTF-8
        23-SNAPSHOT
    

    
        
            org.geotools
            gt-shapefile
            ${geotools.version}
        
    

    
        
            maven2-repository.dev.java.net
            Java.net repository
            http://download.java.net/maven/2
        
        
            osgeo
            Open Source Geospatial Foundation Repository
            http://download.osgeo.org/webdav/geotools/
        
        
            
                true
            
            boundless
            Boundless Maven Repository
            http://repo.boundlessgeo.com/main
        
    

2. 创建获取shp要素信息Java文件

package cn.com.geotool;

import org.geotools.data.FileDataStore;
import org.geotools.data.FileDataStoreFinder;
import org.geotools.data.simple.SimpleFeatureCollection;
import org.geotools.data.simple.SimpleFeatureIterator;
import org.geotools.data.simple.SimpleFeatureSource;
import org.opengis.feature.GeometryAttribute;
import org.opengis.feature.Property;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.type.GeometryType;
import org.opengis.feature.type.Name;
import org.opengis.referencing.crs.CoordinateReferenceSystem;

import java.io.File;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;

/**
 * @ClassName GetShpMsg
 * @Author
 * @Date 2020/4/23
 * @Description TODO
 * @Version 1.0
 */
public class GetShpMsg {

    public static void main(String[] args) throws IOException {
        String pathName = "D:\\GeoToolsTestData\\locations.shp";
        File file = new File(pathName);

        // 读取到数据存储中
        FileDataStore dataStore = FileDataStoreFinder.getDataStore(file);
        // 获取特征资源
        SimpleFeatureSource simpleFeatureSource = dataStore.getFeatureSource();
        // 要素集合
        SimpleFeatureCollection  simpleFeatureCollection = simpleFeatureSource.getFeatures();

        // 要素数量
        int featureSize = simpleFeatureCollection.size();
        // 获取要素迭代器
        SimpleFeatureIterator featureIterator = simpleFeatureCollection.features();
        if(featureIterator.hasNext()){
            // 要素对象
            SimpleFeature feature = featureIterator.next();
            // 要素属性信息，名称，值，类型
            List propertyList = (List) feature.getValue();
            for(Property property : propertyList){
              System.out.println("属性名称：" + property.getName());
              System.out.println("属性值：" + property.getValue());
              System.out.println("属性类型：" + property.getType());
              System.out.println();
            }

            // 要素属性信息
            List