package com.ruoyi.system.service.impl;
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import com.alibaba.fastjson2.JSONObject;
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import com.ruoyi.common.core.domain.AjaxResult;
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import com.ruoyi.common.utils.http.HttpUtils;
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import com.ruoyi.common.config.TiandituMapConfig;
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import com.ruoyi.system.service.IMapService;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import java.net.URLEncoder;
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import java.nio.charset.StandardCharsets;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* 天地图服务实现
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*
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* @author ruoyi
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*/
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@Service("tiandituMapService")
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public class TiandituMapServiceImpl implements IMapService {
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private static final Logger logger = LoggerFactory.getLogger(TiandituMapServiceImpl.class);
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@Autowired
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private TiandituMapConfig tiandituMapConfig;
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/**
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* 地址转GPS坐标（地理编码）
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*
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* @param address 地址
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* @param city 城市（可选，用于提高解析准确性）
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* @return GPS坐标，包含lng和lat，如果获取失败返回null
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*/
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@Override
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public Map<String, Double> geocoding(String address, String city) {
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// 如果地址为空，直接返回null
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if (address == null || address.trim().isEmpty()) {
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return null;
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}
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try {
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// 构建天地图地理编码API URL
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String url = "http://api.tianditu.gov.cn/geocoder";
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String params = "ds=" + URLEncoder.encode("{\"keyWord\":\"" + address + "\"}", StandardCharsets.UTF_8.toString()) +
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"&tk=" + tiandituMapConfig.getTk();
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logger.info("天地图地理编码请求: address={}, city={}", address, city);
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// 发送HTTP请求
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String response = HttpUtils.sendGet(url, params);
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// 解析响应
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JSONObject jsonObject = JSONObject.parseObject(response);
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// 检查状态
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if (jsonObject.getInteger("status") == null || jsonObject.getInteger("status") != 0) {
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logger.warn("天地图地理编码失败: address={}, status={}, msg={}",
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address, jsonObject.getInteger("status"), jsonObject.getString("msg"));
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return null;
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}
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JSONObject location = jsonObject.getJSONObject("location");
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if (location == null) {
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logger.warn("天地图地理编码响应无location: address={}", address);
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return null;
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}
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double lng = location.getDouble("lon");
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double lat = location.getDouble("lat");
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logger.info("天地图地理编码成功: address={}, lng={}, lat={}", address, lng, lat);
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Map<String, Double> coordinates = new HashMap<>();
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coordinates.put("lng", lng);
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coordinates.put("lat", lat);
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return coordinates;
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} catch (Exception e) {
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// 捕获所有异常，避免影响主流程
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logger.error("天地图地理编码异常: address=" + address, e);
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return null;
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}
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}
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/**
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* 直接返回地址
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* @param lng 经度
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* @param lat 纬度
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* @return
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*/
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@Override
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public String reverseGeocoding(double lng, double lat) {
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// 构建天地图逆地理编码API URL
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String url = "http://api.tianditu.gov.cn/geocoder";
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String params = "postStr={\"lon\":" + lng + ",\"lat\":" + lat + ",\"ver\":1}" +
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"&type=geocode" +
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"&tk=" + tiandituMapConfig.getTk();
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logger.info("天地图逆地理编码请求: lon={}, lat={}", lng, lat);
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// 发送HTTP请求
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String response = HttpUtils.sendGet(url, params);
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// "{\"msg\":\"ok\",\"location\":{\"score\":100,\"level\":\"门址\",\"lon\":\"116.290158\",\"lat\":\"39.894696\",\"keyWord\":\"北京市海淀区莲花池西路28号\"},\"searchVersion\":\"7.4.3V\",\"status\":\"0\"}"
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logger.info("天地图逆地理编码响应: {}", response);
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com.alibaba.fastjson.JSONObject obj= com.alibaba.fastjson.JSONObject.parseObject(response);
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if (obj.getInteger("status") !=0) {
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logger.error("天地图逆地理编码失败: {}", response);
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return null;
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}
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com.alibaba.fastjson.JSONObject location = obj.getJSONObject("result");
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if (location == null) {
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logger.error("天地图逆地理编码响应无location: {}", response);
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return null;
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}
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return location.getString("formatted_address");
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}
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}
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