/**
* - 將AOI字符串轉(zhuǎn)換成Polygon對(duì)象
* @return
*/
public static Polygon convertAoi2Polygon(String aoistr) {
	String [] AOI_Str_Array = aoistr.split(";");
	// 獲取GeometryFactory實(shí)例
    GeometryFactory geometryFactory = JTSFactoryFinder.getGeometryFactory(null);
    Coordinate[] coords = {};
    if( AOI_Str_Array.length > 0) {
        coords = new Coordinate[AOI_Str_Array.length];
    }
    //處理坐標(biāo)
    for (int i = 0; i < AOI_Str_Array.length; i++) {
        String loc = AOI_Str_Array[i];
        String [] latlon = loc.split(",");
		double lng = Double.parseDouble(latlon[0]);
		double lat = Double.parseDouble(latlon[1]);
		//將高德坐標(biāo)轉(zhuǎn)換成WGS84坐標(biāo)
		double [] gcj284 = CoordinateTransformUtil.gcj02towgs84(lng, lat);
		//System.out.println("高德坐標(biāo)轉(zhuǎn)wgs84坐標(biāo)" + gcj284[0] + "=" + gcj284[1]);
		coords[i] = new Coordinate(gcj284[0], gcj284[1]);
	}
    LinearRing shell = geometryFactory.createLinearRing(coords);
    Polygon polygon = geometryFactory.createPolygon(shell, null);
    polygon.setSRID(4326);//設(shè)置4326的坐標(biāo)
    return polygon;
}

// 2. 創(chuàng)建PostGIS數(shù)據(jù)存儲(chǔ)
DataStore dataStore = createPostgisDataStore();
// 3. 二次查詢：用該多邊形查詢點(diǎn)數(shù)據(jù)（如查詢橘子洲景區(qū)內(nèi)的POI）
String poiLayerName = "biz_poi_info";
FilterFactory2 ff = CommonFactoryFinder.getFilterFactory2();
PropertyName geomProperty = ff.property("geom"); // 點(diǎn)數(shù)據(jù)的幾何列名
// 4、空間關(guān)系：點(diǎn)在多邊形內(nèi)（WITHIN）或相交（INTERSECTS）
Filter spatialFilter = ff.within(geomProperty, ff.literal(aoiPolygon));
Query pointQuery = new Query(poiLayerName, spatialFilter);
FeatureSource pointSource = dataStore.getFeatureSource(poiLayerName);

System.out.println("POI數(shù)量:"+points.size());
// 6. 處理結(jié)果
try (FeatureIterator iterator = points.features()) {
    while (iterator.hasNext()) {
       Feature pointFeature = iterator.next();
       Geometry point = (Geometry) pointFeature.getDefaultGeometryProperty().getValue();
       System.out.println("POI坐標(biāo): " + point.getCoordinate());
       printSimpleFeatureAttributes((SimpleFeature)pointFeature); // 打印屬性
       System.out.println("------------------------------------------------------");
    }
}

 public static Style createDashedBorderStyle() {
        StyleFactory sf = CommonFactoryFinder.getStyleFactory();
        FilterFactory2 ff = CommonFactoryFinder.getFilterFactory2();
        PolygonSymbolizer symbolizer = sf.createPolygonSymbolizer(
        		sf.createStroke(ff.literal(Color.DARK_GRAY), ff.literal(0.8)),
                sf.createFill(ff.literal(Color.BLUE), ff.literal(0.8)), // 80%透明度
                null
        );
        Rule rule = sf.createRule();
        rule.symbolizers().add(symbolizer);
        FeatureTypeStyle fts = sf.createFeatureTypeStyle();
        fts.rules().add(rule);
        Style style = sf.createStyle();
        style.featureTypeStyles().add(fts);
        return style;
    }
    private static Style createPoiStyle() {
        StyleFactory sf = CommonFactoryFinder.getStyleFactory();
        FilterFactory2 ff = CommonFactoryFinder.getFilterFactory2();
        // 創(chuàng)建圓形符號(hào)
        Mark mark = sf.createMark();
        mark.setWellKnownName(ff.literal("circle"));
        mark.setFill(sf.createFill(ff.literal(Color.RED)));
        mark.setStroke(sf.createStroke(ff.literal(Color.BLACK), ff.literal(1)));
        Graphic graphic = sf.createDefaultGraphic();
        graphic.graphicalSymbols().clear();
        graphic.graphicalSymbols().add(mark);
        PointSymbolizer pointSym = sf.createPointSymbolizer(graphic, null);
        // 新增震級(jí)標(biāo)注
        Font font = sf.createFont(ff.literal("楷體"),ff.literal("Regular"),ff.literal("normal"),ff.literal(18));
        // 創(chuàng)建文本標(biāo)注
       TextSymbolizer textSym = sf.createTextSymbolizer(
                sf.createFill(ff.literal(Color.WHITE)),
                new Font[] { font },
                null,
                ff.property("name"),  // 標(biāo)注字段
                null,
                null
        );
        // 標(biāo)注位置（點(diǎn)右側(cè)偏移）
        AnchorPoint anchor = sf.createAnchorPoint(ff.literal(-0.05), ff.literal(0.05));
        Displacement displacement = sf.createDisplacement(ff.literal(0.1), ff.literal(0));
        Fill textFill = sf.createFill(ff.literal(Color.RED));
        Halo halo = sf.createHalo(
            sf.createFill(ff.literal(Color.WHITE)),
            ff.literal(1)
        );
        textSym.setFont(font);
        textSym.setFill(textFill);
        textSym.setHalo(halo);
        //新的設(shè)置方法
        PointPlacement placement = sf.createPointPlacement(anchor, displacement, ff.literal(0));
        textSym.setLabelPlacement(placement);
        Rule rule = sf.createRule();
        rule.symbolizers().add(pointSym);
        rule.symbolizers().add(textSym);
        FeatureTypeStyle fts = sf.createFeatureTypeStyle();
        fts.rules().add(rule);
        Style style = sf.createStyle();
        style.featureTypeStyles().add(fts);
        return style;
    }

SimpleFeatureCollection poiCollection = (SimpleFeatureCollection) pointSource.getFeatures(pointQuery);
// 7. 創(chuàng)建樣式
Style aoiStyle = createDashedBorderStyle();
 Style poiStyle = createPoiStyle();
// 8. 創(chuàng)建地圖內(nèi)容
MapContent mapContent = new MapContent();
SimpleFeatureSource aoiSfs = convert(aoiPolygon);
mapContent.addLayer(new FeatureLayer(aoiSfs, aoiStyle));
mapContent.addLayer(new FeatureLayer(poiCollection, poiStyle));
// 9. 設(shè)置輸出范圍和尺寸
ReferencedEnvelope mapBounds = poiCollection.getBounds();
mapBounds.expandBy(0.2); // 擴(kuò)展邊界
// 10、輸出圖像大?。ɡ纾簩挾葂高度）
int width = 1920; // 可根據(jù)需求調(diào)整		
// 計(jì)算地理寬高比
double aspectRatio = mapBounds.getWidth() / mapBounds.getHeight();
//根據(jù)比例計(jì)算新高度
int height = (int) Math.round(width / aspectRatio);
// 渲染圖片
BufferedImage image = renderMap(mapContent, aoiSfs.getBounds(), width, height);
// 保存圖片
ImageIO.write(image, "png", new File("D:/AOI及其包含POI數(shù)據(jù)示意圖.png"));
System.out.println("finished");  
dataStore.dispose();