Java使用GeoTools读写shp文件

根据geotools自己封装的工具类，主要有shp文件的内容读取，转geojson，要素的增删改，新shp生成

需要的依赖

这里主要用的是geotools的依赖，版本是<geotools.version>23.2</geotools.version>
还用到了fastjson，版本1.2.57

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.57</version>
</dependency>
<!-- geotools -->
<dependency>
    <groupId>org.geotools</groupId>
    <artifactId>gt-shapefile</artifactId>
    <version>${geotools.version}</version>
</dependency>
<dependency>
    <groupId>org.geotools</groupId>
    <artifactId>gt-geojson</artifactId>
    <version>${geotools.version}</version>
</dependency>
<dependency>
    <groupId>org.geotools</groupId>
    <artifactId>gt-cql</artifactId>
    <version>${geotools.version}</version>
</dependency>
<dependency>
    <groupId>org.geotools</groupId>
    <artifactId>gt-ysld</artifactId>
    <version>${geotools.version}</version>
</dependency>
<dependency>
    <groupId>org.geotools</groupId>
    <artifactId>gt-epsg-hsql</artifactId>
    <version>${geotools.version}</version>
</dependency>
<dependency>
    <groupId>org.geotools</groupId>
    <artifactId>gt-epsg-extension</artifactId>
    <version>${geotools.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.geotools/gt-main -->
<dependency>
    <groupId>org.geotools</groupId>
    <artifactId>gt-main</artifactId>
    <version>${geotools.version}</version>
</dependency>
<dependency>
    <groupId>org.geotools</groupId>
    <artifactId>gt-opengis</artifactId>
    <version>${geotools.version}</version>
</dependency>
<dependency>
    <groupId>org.geotools</groupId>
    <artifactId>gt-xml</artifactId>
    <version>${geotools.version}</version>
</dependency>
<dependency>
    <groupId>org.geotools</groupId>
    <artifactId>gt-referencing</artifactId>
    <version>${geotools.version}</version>
</dependency>

如果不好下需要指定一下repository

<repository>
    <id>GeoSolutions</id>
    <url>http://maven.geo-solutions.it/</url>
</repository>

读取工具

public class ShapeFileReaderUtils {
   
   

    /**
     * 校验shp文件
     *
     * @param fileUrl 文件地址 shp或shp文件夹
     * @return File
     * @throws Exception e
     */
    public static File checkShapeFile(String fileUrl) throws Exception {
   
   
        File file = new File(fileUrl);
        if (file.isDirectory()) {
   
   
            File[] fa = file.listFiles();
            if (fa == null || fa.length < 1) {
   
   
                throw new Exception("找不到shp文件");
            }
            boolean flag = true;
            for (File f : fa) {
   
   
                if (new ShpFiles(file).exists(ShpFileType.SHP)) {
   
   
                    file = f;
                    flag = false;
                    break;
                }
            }
            if (flag) {
   
   
                throw new Exception("找不到shp文件");
            }
        } else {
   
   
            if (!new ShpFiles(file).exists(ShpFileType.SHP)) {
   
   
                throw new Exception("找不到shp文件");
            }
        }
        return file;
    }

    /**
     * shp文件要素源
     *
     * @param fileUrl 文件地址
     * @return ContentFeatureSource
     * @throws Exception e
     */
    public static ContentFeatureSource getFeatureSourceFromShapeFile(String fileUrl) throws Exception {
   
   
        ShapefileDataStore sds = null;
        try {
   
   
            ShapefileDataStoreFactory dataStoreFactory = new ShapefileDataStoreFactory();
            File file = checkShapeFile(fileUrl);

            sds = (ShapefileDataStore) dataStoreFactory.createDataStore(file.toURI().toURL());
            String type = sds.getTypeNames()[0];
            sds.setCharset(getShapeFileCharsetName(fileUrl));

            return sds.getFeatureSource(type);
        } catch (Exception e) {
   
   
            e.printStackTrace();
            return