java根据经纬度获取详细地址

注意：需要自行申请key，在代码相应位置替换，参考官方地址：腾讯位置服务 - 立足生态，连接未来

下面上代码

import com.alibaba.fastjson.JSONObject;
import com.cxt.car.po.dto.address.Result;
import com.cxt.car.util.baseUtils.JsonUtil;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

/**
 * @Author: yansf
 * @Description:根据经纬度获取地址
 * @Date:Creat in 20:20 2019/12/11
 * @Modified By:
 */
public class AddressUntils {
    static String secretKey = "此处是申请的key";

    /**
     * @param lat 纬度
     * @param lng 经度
     * @return
     */
    public static Result getAddress(String lat, String lng) throws IOException {
        JSONObject obj = getLocationInfo(lat, lng).getJSONObject("result");
        System.out.println(obj);
        Result result = JsonUtil.fromJson(obj.toString(), Result.class);

        return result;
    }

    public static JSONObject getLocationInfo(String lat, String lng) throws IOException {
        String urlString = "https://apis.map.qq.com/ws/geocoder/v1/?location=" + lat + "," + lng + "&key=" + secretKey;
        System.out.println("请求经纬度url:" + urlString);
        URL url = new URL(urlString);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setDoInput(true);
        conn.setRequestMethod("GET");
        BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));
        String line;
        String res = "";
        while ((line = in.readLine()) != null) {
            res += line + "\n";
        }
        in.close();
        JSONObject jsonObject = JSONObject.parseObject(res);
        return jsonObject;
    }


    public static void main(String[] args) throws IOException {
        Result address = getAddress("30.2084", "120.21201");
        System.out.println(address.ad_info.city);

    }

}

返回的json串：

{"address":"浙江省杭州市滨江区人民路6号","ad_info":{"province":"浙江省","adcode":"330108","nation":"中国","city":"杭州市","district":"滨江区","name":"中国,浙江省,杭州市,滨江区","city_code":"156330100","location":{"lng":120.220459,"lat":30.16667},"nation_code":"156"},"address_reference":{"town":{"_distance":0,"_dir_desc":"内","location":{"lng":120.233566,"lat":30.183102},"id":"330108001","title":"西兴街道"},"street":{"_distance":8.6,"_dir_desc":"北","location":{"lng":120.206032,"lat":30.204729},"id":"1172092355888263234","title":"新月路"},"crossroad":{"_distance":193,"_dir_desc":"东","location":{"lng":120.21003,"lat":30.208891},"id":"6417297","title":"丹枫路/泰安路(路口)"},"street_number":{"_distance":0,"_dir_desc":"","location":{"lng":120.211739,"lat":30.20863},"id":"6709388790419249714","title":"人民路6号"},"landmark_l2":{"_distance":0,"_dir_desc":"内","location":{"lng":120.211739,"lat":30.20863},"id":"13795638749391557063","title":"滨江区政府"}},"location":{"lng":120.21201,"lat":30.2084},"formatted_addresses":{"rough":"滨江区政府(新月路北)","recommend":"滨江区政府(新月路北)"},"address_component":{"province":"浙江省","nation":"中国","city":"杭州市","street":"人民路","district":"滨江区","street_number":"人民路6号"}}

此处推荐个地址（json转实体类）：JSON转C#实体类-BeJSON.com

【java自行修改一下格式】代码中用到的实体类就用下面这种方式转换即可

代码中还用到了一个工具类，将json转换成实体类

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;

/**
 * @Author: yansf
 * @Description:JSON工具类
 * @Date:Creat in 17:22 2019/12/10
 * @Modified By:
 */
public class JsonUtil {
    private static final Logger LOGGER = LoggerFactory.getLogger(JsonUtil.class);

    private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();

    /**
     * 将POJO转换为JSON
     */
    public static  String toJson(T obj) {
        String json;
        try {
            json = OBJECT_MAPPER.writeValueAsString(obj);
        } catch (JsonProcessingException e) {
            LOGGER.error("convert POJO to JSON failure", e);
            throw new RuntimeException(e);
            //e.printStackTrace();
        }
        return json;
    }

    /**
     * 将JSON转为POJO
     */
    public static  T fromJson(String json, Class type) {
        T pojo;
        try {
            pojo = OBJECT_MAPPER.readValue(json, type);
        } catch (IOException e) {
            LOGGER.error("convert JSON to POJO failure", e);
            throw new RuntimeException(e);
            //e.printStackTrace();
        }
        return pojo;

    }
}

运行结果：