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标题: java根据经纬度获取地址 [打印本页]

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作者: 专注的一批    时间: 2019-12-13 14:43
标题: java根据经纬度获取地址

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"}}

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;

function(){ //外汇返佣 http://www.kaifx.cn/

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 <T> 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> T fromJson(String json, Class<T> 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;

    }

}

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