Java将WKT格式的Geomotry转换成GeoJSON

一、Meven添加依赖

1<!-- 引入json处理包 -->
2<dependency>
3    <groupId>com.alibaba</groupId>
4    <artifactId>fastjson</artifactId>
5    <version>1.2.47</version>
6</dependency>
7
8<!-- jts处理Geometry -->
9<dependency>
10    <groupId>com.vividsolutions</groupId>
11    <artifactId>jts</artifactId>
12    <version>1.13</version>
13</dependency>
14
15<!-- https://mvnrepository.com/artifact/org.geotools/gt-geojson -->
16<dependency>
17    <groupId>org.geotools</groupId>
18    <artifactId>gt-geojson</artifactId>
19    <version>9.3</version>
20</dependency>
21
22<dependency>
23    <groupId>com.googlecode.json-simple</groupId>
24    <artifactId>json-simple</artifactId>
25    <version>1.1.1</version>
26</dependency>

 如添加依赖遇到not fount，可手动配置maven repository解决

1<repositories>
2    <repository>
3        <id>OSGeo Repository</id>
4        <url>http://download.osgeo.org/webdav/geotools/</url>
5    </repository>
6</repositories>

二、解析方法源码

1package com.bret.utils;
2
3import com.vividsolutions.jts.geom.Geometry;
4import com.vividsolutions.jts.io.WKTReader;
5import org.geotools.geojson.geom.GeometryJSON;
6
7import java.io.StringWriter;
8
9public class WKTUtil {
10
11    /**
12     * 由wkt格式的geometry生成geojson
13     * @param wkt
14     * @return
15     */
16    public static String wktToJson(String wkt) {
17        String json = null;
18        try {
19            WKTReader reader = new WKTReader();
20            Geometry geometry = reader.read(wkt);
21            StringWriter writer = new StringWriter();
22            GeometryJSON g = new GeometryJSON(20);
23            g.write(geometry, writer);
24            json = writer.toString();
25        } catch (Exception e) {
26            e.printStackTrace();
27        }
28        return json;
29    }
30
31}

返回解析后的geojson字符串。