EsriJSON与GeoJSON转换工具类：Java/Python/C#实现

EsriJSON与GeoJSON转换工具类。简单的点线面应该没问题，复杂的可能有问题，没具体测试。大家可以在这个基础上修改。后面用起来慢慢修正吧。


package piesat.geo;


import com.alibaba.fastjson.JSON;
import  com.alibaba.fastjson.JSONObject;
import org.apache.commons.lang3.StringUtils;

import java.math.BigDecimal;
import java.util.*;

public class EsriGeoJsonUtil {
    public static String esri2geo(String ersiJson){
        Map geoMap = new HashMap();
        try {
            List geoFs = new ArrayList();
            geoMap.put("type", "FeatureCollection");
            Map esriMap = (Map) JSON.parse(ersiJson);
            Object esriFs = esriMap.get("features");
            if(esriFs instanceof List){
                esriFs = (List<Map<String, Object>>) esriFs;
                for(int i=0; i< ((List) esriFs).size(); i++){
                    Map esriF = (Map) ((List) esriFs).get(i);
                    Map geoF = new HashMap();
                    geoF.put("type", "Feature");
                    geoF.put("properties", esriF.get("attributes"));
                    Map<String, Object> geometry = (Map<String, Object>) esriF.get("geometry");
                    if(null != geometry.get("x")){
                        geoF.put("geometry", geoPoint(geometry));
                    }else if(null != geometry.get("points")){
                        geoF.put("geometry", geoPoints(geometry));
                    }else if(null != geometry.get("paths")){
                        geoF.put("geometry", geoLine(geometry));
                    }else if(null != geometry.get("rings")){
                        geoF.put("geometry", geoPoly(geometry));
                    }
                    geoFs.add(geoF);
                }
                geoMap.put("features", geoFs);
            }
        }catch (Exception e){
            e.printStackTrace();
        }
        return new JSONObject(geoMap).toString();
    }

    public static String geo2ersi(String geoJson, String idAttribute){
        Map esriMap = new HashMap();
        try {
            Map geoMap = (Map) JSON.parse(geoJson);
            esriMap = getEsriGeo(geoMap, idAttribute);
            Map spatialReference = new HashMap();
            spatialRef
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