补充客户信息
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package com.rj.service;
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import com.rj.dto.NearbyMerchantSearchResult;
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/**
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* 基于高德地图：地址转坐标 + 周边全行业 POI（商家）检索。
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*/
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public interface INearbyMerchantSearchService {
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/**
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* 根据城市、详细地址得到中心点，再按半径分页拉取周边商家。
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*
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* @param city 城市（传给地理编码 city 参数，如「河北省廊坊市三河市燕郊镇」）
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* @param address 地址/地标（传给地理编码 address 参数）
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* @param radiusMeters 周边搜索半径（米）
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* @param maxPage 最多请求页数（从 1 递增）
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* @param maxRecordsPerPage 每页条数，高德允许 1～50，超出会被裁剪
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*/
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NearbyMerchantSearchResult searchNearbyMerchants(String city, String address,
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int radiusMeters, int maxPage, int maxRecordsPerPage);
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}
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package com.rj.service.impl;
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import com.fasterxml.jackson.databind.JsonNode;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.rj.config.AmapProperties;
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import com.rj.dto.NearbyMerchantItem;
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import com.rj.dto.NearbyMerchantSearchResult;
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import com.rj.service.INearbyMerchantSearchService;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.stereotype.Service;
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import org.springframework.util.StringUtils;
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import org.springframework.web.client.RestTemplate;
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import org.springframework.web.util.UriComponentsBuilder;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* 逻辑参考 {@link com.rj.gaode.AllShopCollectorV5}：地理编码 + place/around 全行业周边搜索。
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*/
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@Slf4j
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@Service
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public class NearbyMerchantSearchServiceImpl implements INearbyMerchantSearchService {
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private static final String GEOCODE_URL = "https://restapi.amap.com/v3/geocode/geo";
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private static final String AROUND_URL = "https://restapi.amap.com/v3/place/around";
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private static final int AMAP_OFFSET_MAX = 50;
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private static final int AMAP_PAGE_DELAY_MS = 800;
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private final RestTemplate restTemplate;
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private final ObjectMapper objectMapper;
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private final AmapProperties amapProperties;
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public NearbyMerchantSearchServiceImpl(RestTemplate restTemplate,
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ObjectMapper objectMapper,
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AmapProperties amapProperties) {
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this.restTemplate = restTemplate;
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this.objectMapper = objectMapper;
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this.amapProperties = amapProperties;
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}
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@Override
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public NearbyMerchantSearchResult searchNearbyMerchants(String city, String address,
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int radiusMeters, int maxPage, int maxRecordsPerPage) {
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if (!StringUtils.hasText(amapProperties.getWebServiceKey())) {
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return NearbyMerchantSearchResult.badRequest("未配置高德 Web 服务 Key，请在配置中设置 amap.web-service-key");
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}
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if (!StringUtils.hasText(city) || !StringUtils.hasText(address)) {
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return NearbyMerchantSearchResult.badRequest("CITY 与 ADDRESS 不能为空");
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}
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if (radiusMeters <= 0) {
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return NearbyMerchantSearchResult.badRequest("RADIUS 须为正整数（米）");
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}
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if (maxPage < 1) {
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return NearbyMerchantSearchResult.badRequest("MAX_PAGE 须大于等于 1");
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}
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int offset = Math.min(AMAP_OFFSET_MAX, Math.max(1, maxRecordsPerPage));
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int pages = Math.min(maxPage, 100);
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try {
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String location = geocodeToLocation(city.trim(), address.trim());
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List<NearbyMerchantItem> all = new ArrayList<>();
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String totalCount = null;
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for (int page = 1; page <= pages; page++) {
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String json = fetchAroundPage(location, radiusMeters, offset, page);
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JsonNode root = objectMapper.readTree(json);
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if (!"1".equals(root.path("status").asText())) {
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String info = root.path("info").asText("高德接口返回失败");
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return NearbyMerchantSearchResult.badRequest("周边搜索失败：" + info);
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}
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if (totalCount == null) {
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totalCount = root.path("count").asText(null);
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}
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JsonNode pois = root.path("pois");
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if (pois.isArray()) {
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for (JsonNode p : pois) {
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all.add(new NearbyMerchantItem(
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text(p, "name"),
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text(p, "address"),
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text(p, "tel"),
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text(p, "type"),
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text(p, "location")
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));
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}
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}
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if (page < pages) {
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try {
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Thread.sleep(AMAP_PAGE_DELAY_MS);
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} catch (InterruptedException e) {
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Thread.currentThread().interrupt();
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return NearbyMerchantSearchResult.serverError("查询被中断");
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}
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}
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}
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return NearbyMerchantSearchResult.ok(location, all, totalCount);
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} catch (IllegalArgumentException e) {
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return NearbyMerchantSearchResult.badRequest(e.getMessage());
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} catch (Exception e) {
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log.warn("附近商家检索异常: {}", e.getMessage());
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return NearbyMerchantSearchResult.serverError("附近商家检索异常：" + e.getMessage());
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}
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}
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private String geocodeToLocation(String city, String address) throws Exception {
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String url = UriComponentsBuilder.fromUriString(GEOCODE_URL)
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.queryParam("key", amapProperties.getWebServiceKey())
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.queryParam("city", city)
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.queryParam("address", address)
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.queryParam("output", "json")
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.build()
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.encode()
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.toUriString();
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String json = restTemplate.getForObject(url, String.class);
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JsonNode root = objectMapper.readTree(json);
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if (!"1".equals(root.path("status").asText())) {
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String info = root.path("info").asText("地理编码失败");
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throw new IllegalArgumentException("地理编码失败：" + info);
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}
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JsonNode geocodes = root.path("geocodes");
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if (!geocodes.isArray() || geocodes.isEmpty()) {
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throw new IllegalArgumentException("未解析到该地址的经纬度，请检查 CITY、ADDRESS");
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}
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String loc = geocodes.get(0).path("location").asText("");
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if (!StringUtils.hasText(loc)) {
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throw new IllegalArgumentException("地理编码结果中无 location 字段");
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}
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return loc;
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}
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private String fetchAroundPage(String location, int radius, int offset, int page) {
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String url = UriComponentsBuilder.fromUriString(AROUND_URL)
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.queryParam("key", amapProperties.getWebServiceKey())
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.queryParam("location", location)
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.queryParam("radius", radius)
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.queryParam("offset", offset)
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.queryParam("page", page)
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.queryParam("output", "json")
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.build()
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.encode()
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.toUriString();
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String body = restTemplate.getForObject(url, String.class);
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if (body == null) {
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throw new IllegalStateException("高德周边搜索返回空响应");
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}
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return body;
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}
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private static String text(JsonNode node, String field) {
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if (node == null || !node.has(field)) {
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return "";
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}
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return node.get(field).asText("");
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}
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}
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