1. Documento de interfaz oficial
https://docs.geoserver.org/latest/en/api/#1.0.0/styles.yaml
2. Prepare el archivo de estilo sld
Hay muchos programas que pueden exportar archivos de estilo, como QGIS, ARCGISPRO, Udig, pero solo el archivo sld exportado por udig se puede previsualizar normalmente cuando se carga en geojson.
3. Demostración de prueba
De acuerdo con el resto de la interfaz del documento oficial, cargue, configure el estilo predeterminado de la capa, elimine el estilo y consulte todos los estilos.
En la producción real, una capa se puede mostrar en varios estilos en la interfaz, el estilo que se representa realmente depende de la configuración de la interfaz.
import cn.hutool.http.HttpException;
import cn.hutool.http.HttpRequest;
import cn.hutool.json.JSONArray;
import cn.hutool.json.JSONObject;
import com.cqdh.group.its.db.model.MapDispositionDO;
import okhttp3.*;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Base64;
import java.util.List;
public class GeoServerStyle {
public static void main(String[] args) throws IOException {
//GeoServer的连接配置
String url = "http://127.0.0.1:8016/geoserver";
String username = "admin";
String passwd = "geoserver";
String styleFile = "D:/测试文件/geoserver样式/绿地-蓝底绿边.sld";
//上传样式
publishStyle(url, username, passwd, styleFile);
//设置图层默认样式
String layerName = "test:faa87f497ac4f9a172b2bf5179ec9ccc";
//applyStyle(url + "/rest/layers/" + layerName, username, passwd, "绿地-蓝底绿边");
//删除样式（如果同名样式已存在，调用上传样式会报403重复的错误）
//delStyle(url + "/rest/styles/绿地-蓝底绿边", username, passwd);
//查询所有样式
//List<String> styleList = getStyles(url,username,passwd);
}
/**
* 发布样式
* curl -v -u admin:geoserver -X POST -H "Content-type: application/vnd.ogc.sld+xml" -T D:/测试文件/geoserver样式/stbhhx2.sld http://127.0.0.1:8016/geoserver/rest/styles?name=stbhhx2style
*
* @param url http://127.0.0.1:8016/geoserver
* @param username
* @param password
* @param styleFilePath D:/测试文件/geoserver样式/绿地-蓝底绿边.sld
*/
public static boolean publishStyle(String url, String username, String password, String styleFilePath) {
// 配置请求url和样式文件路径
String uploadUrl = url + "/rest/styles";
String styleName = styleFilePath.substring(styleFilePath.lastIndexOf("/") + 1).replace(".sld", "");
// 创建OkHttp客户端和请求体
OkHttpClient client = new OkHttpClient().newBuilder()
.authenticator((route, response) -> {
String credential = Credentials.basic(username, password);
return response.request().newBuilder().header("Authorization", credential).build();
})
.build();
RequestBody requestBody = RequestBody.create(MediaType.parse("application/vnd.ogc.sld+xml"), new File(styleFilePath));
// 构造请求
HttpUrl.Builder httpBuilder = HttpUrl.parse(uploadUrl).newBuilder();
httpBuilder.addQueryParameter("name", styleName);
String requestUrl = httpBuilder.build().toString();
Request request = new Request.Builder()
.url(requestUrl)
.post(requestBody)
.build();
// 发送请求并处理响应
Call call = client.newCall(request);
try {
Response response = call.execute();
if (response.isSuccessful()) {
System.out.println("添加样式成功");
return true;
} else {
if (response.body() != null && response.body().string().contains("already exists")) {
System.err.println("样式已存在. ");
return true;
} else {
System.err.println("添加样式失败. 错误信息: " + response.body().string());
return false;
}
}
} catch (Exception e) {
System.err.println("添加样式失败: " + e.getMessage());
return false;
}
}
/**
* 应用样式到指定图层
*
* @param url http://127.0.0.1:7012/geoserver/rest/layers/ws:layername
* @param username
* @param password
* @param styleName
*/
private static void applyStyle(String url, String username, String password, String styleName) {
try {
String client = username + ":" + password;
client = "Basic " + Base64.getEncoder().encodeToString(client.getBytes());
System.out.println("应用样式：" + url);
String res = HttpRequest.put(url)
.header("Authorization", client)
.header("content-type", "application/json")
.header("accept", "application/json")
.timeout(1000)
.body("{\"layer\":{\"defaultStyle\":{\"name\":\"#style\"}}}".replace("#style", styleName))
.execute().body();
System.out.println("应用样式：" + styleName + " -> " + url + ",结果：" + res);
} catch (HttpException e) {
System.out.println("应用图层样式失败");
}
}
/**
* curl -X DELETE http://localhost:8080/geoserver/rest/styles/ss?purge=true&recurse=true-H "accept: application/json" -H "content-type: application/json"
*
* @param delUrl
* @param username
* @param password
*/
public static void delStyle(String delUrl, String username, String password) {
OkHttpClient client = new OkHttpClient();
HttpUrl url = HttpUrl.parse(delUrl).newBuilder()
.addQueryParameter("purge", "true")
.addQueryParameter("recurse", "true")
.build();
String credential = Credentials.basic(username, password);
Request request = new Request.Builder()
.url(url)
.header("accept", "application/json")
.header("content-type", "application/json")
.header("Authorization", credential)
.delete()
.build();
try (Response response = client.newCall(request).execute()) {
if (response.isSuccessful()) {
System.out.println("样式删除成功 " + delUrl);
} else {
System.out.println("Error: " + response.code() + " " + response.message());
}
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 查询geoserver已发布的样式列表
*
* @return
*/
public static List<String> getStyles(String baseUrl, String username, String password) {
//http://127.0.0.1:8016/geoserver/rest/workspaces/test/datastores/DLTB/featuretypes/DLTB.json
if (!baseUrl.endsWith("/")) {
baseUrl = baseUrl + "/";
}
//先获取图层资源存储仓库 http://192.168.3.36:8089/geoserver/rest/workspaces/test/layers/aanp
String geoserverUrl = baseUrl + "rest/styles";
String client = username + ":" + password;
client = "Basic " + Base64.getEncoder().encodeToString(client.getBytes());
String result = null;
try {
result = getString(client, geoserverUrl, 3);
//log.info("查询图层仓库信息：{}", result);
JSONObject jsObject = new JSONObject(result);
Object obj = jsObject.get("styles");
if (obj instanceof String || "".equals(obj)) {
return null;
}
JSONObject jsObject2 = new JSONObject(obj);
JSONArray styleList = new JSONArray(jsObject2.get("style"));
if (styleList.size() == 0) {
return null;
}
List<String> styles = new ArrayList<>();
for (Object style : styleList) {
JSONObject styleInfo = new JSONObject(style);
styles.add((String) styleInfo.get("name"));
}
return styles;
} catch (Exception e) {
System.out.println("查询图层信息异常：" + e);
return null;
}
}
/**
* 循环请求
*
* @param client
* @param url
* @param reTrynum 重试次数
* @return
*/
private static String getString(String client, String url, int reTrynum) {
String result;
result = HttpRequest.get(url)
.header("Authorization", client)
.header("content-type", "application/json")
.header("accept", "application/json")
.timeout(1000)
.execute().body();
if (!result.startsWith("{") && reTrynum > 0) {
reTrynum--;
return getString(client, url, reTrynum);
}
return result;
}
}
4. Vista previa del estilo designado en el front-end
url = dirección de servicio del geoservidor + /espacio de trabajo/+ wms
capas = espacio de trabajo: nombre de capa
estilos = nombre de estilo, puede obtener estilos publicados en el geoservidor desde el método getStyles() anterior
// 添加wms服务
const addWmsServer = async (key: string, url: string, layers: string, style: string) => {
console.log('url', url)
console.log('layers', layers)
console.log('style', style)
// 待验证
viewer?.imageryLayers.remove(viewer.imageryLayers.get(2))
const imageryProvider = new Cesium.WebMapServiceImageryProvider({
url: "http://127.0.0.1:8016/geoserver/ws/wms",
layers: "ws:xxxx",
parameters: {
service: 'WMS',
format: 'image/png',
transparent: true,
styles: 'CONTOUR2绿色'
}
})
viewer.imageryLayers.addImageryProvider(imageryProvider)