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有时候在开发中我们会需要根据模糊地址获取经纬度，国家信息中心的api可以帮助我们实现这个功能，通过模糊地址获取经纬度直接上代码：

/**     * 通过地址获取经纬度     *     * @param address     * @return     */    public static Map
   
     getLngAndLag(String address) {        Map
    
      lngLat = new HashMap<>();        String url = " http://api.tianditu.gov.cn/geocoder?ds={'keyWord':'" + address + "'}&tk=您的密钥";        String json = loadJSON(url);        JSONObject jsonObject = JSONObject.fromObject(json);        String status = getJsonValue("status", jsonObject);        String backMsg = getJsonValue("msg", jsonObject);        if ("0".equals(status) && "ok".equalsIgnoreCase(backMsg)) {            if (StringUtils.isEmpty(getJsonValue("resultType", jsonObject))) {                DecimalFormat dFormat = new DecimalFormat("#.00");                String lon = dFormat.format(Double.valueOf(jsonObject.getJSONObject("location").getString("lon")));                String lat = dFormat.format(Double.valueOf(jsonObject.getJSONObject("location").getString("lat")));                lngLat.put("lng", lon);                lngLat.put("lat", lat);            }            if (StringUtils.isNotEmpty(getJsonValue("resultType", jsonObject))) {                DecimalFormat dFormat = new DecimalFormat("#.00");                String admin = jsonObject.getString("admin");                String s = admin.replaceAll("\\[", "").replaceAll("]", "");                JSONObject JsonMiddle = JSONObject.fromObject(s);                String lon = dFormat.format(Double.valueOf(JsonMiddle.getJSONObject("location").getString("lon")));                String lat = dFormat.format(Double.valueOf(JsonMiddle.getJSONObject("location").getString("lat")));                lngLat.put("lng", lon);                lngLat.put("lat", lat);            }        }        if ("101".equals(status) || "404".equals(status)) {            lngLat = null;        }        return lngLat;    }
    
   

网页转换为json字符串代码：

/**     * 请求网页消息转换为Json字符串     *     * @param url     * @return     */    public static String loadJSON(String url) {        StringBuffer json = new StringBuffer();        try {            URL oracle = new URL(url);            URLConnection yc = oracle.openConnection();            BufferedReader in = new BufferedReader(new InputStreamReader(                    yc.getInputStream()));            String inputLine = null;            while ((inputLine = in.readLine()) != null) {                json.append(inputLine);            }            in.close();        } catch (MalformedURLException e) {        } catch (IOException e) {        }        return json.toString();    }

剔除json key为空的情况：

//剔除json key为空的情况    public static String getJsonValue(String jsonKey, JSONObject jsonObject) {        String condition = "";        if (jsonObject.containsKey(jsonKey)) {            condition = String.valueOf(jsonObject.get(jsonKey));        }        return condition;    }

根据经纬度获取省市县代码：

public static Map
   
     getArea(String lng, String lat) {        Map
    
      area = new HashMap<>();        String url = "http://api.tianditu.gov.cn/geocoder?postStr={'lon':" + lng + ",'lat':" + lat + ",'ver':1}&type=geocode&tk=您的key";        String json = loadJSON(url);        JSONObject jsonObject = JSONObject.fromObject(json);        String status = getJsonValue("status", jsonObject);        String backMsg = getJsonValue("msg", jsonObject);        Map
     
       lngLat = new HashMap<>();        if ("0".equals(status) && "ok".equalsIgnoreCase(backMsg)) {            String address = jsonObject.getJSONObject("result").getJSONObject("addressComponent").getString("city");            area = addressResolution(address);            area.put("lng", lng);            area.put("lat", lat);        }        if ("101".equals(status) || "404".equals(status)) {            area = null;        }        return area;    }
     
    
   

解析地址代码：

/**     * 解析地址     *     * @param address     * @return     */    public static Map
   
     addressResolution(String address) {        String[] cityName = {"上海", "北京", "天津", "重庆"};        String[] cityArr = address.split("市", -1);        if (ArrayUtils.contains(cityName, cityArr[0])) {            address = cityArr[0] + "市市辖区" + cityArr[1];        }        String regex = "(?
    
     [^省]+自治区|.*?省|.*?行政区|.*?市)(?
     
      [^市]+自治州|.*?地区|.*?行政单位|.+盟|市辖区|.*?市|.*?县)(?
      
       [^县]+县|.+区|.+市|.+旗|.+海域|.+岛)?(?
       
        [^区]+区|.+镇)?(?
        
         .*)"; Matcher m = Pattern.compile(regex).matcher(address); String province = null, city = null, county = null, town = null, village = null; Map
         
           row = null; while (m.find()) { row = new LinkedHashMap
          
           (); province = m.group("province").replaceAll("省|市|自治区|壮族|维吾尔|回族", ""); row.put("province", province == null ? "" : province.trim()); city = m.group("city").replaceAll("市|自治州|地区|自治市", ""); row.put("city", city == null ? "" : city.trim()); county = m.group("county"); row.put("county", county == null ? "" : county.trim()); town = m.group("town"); row.put("town", town == null ? "" : town.trim()); village = m.group("village"); row.put("village", village == null ? "" : village.trim()); } return row; }
          
         
        
       
      
     
    
   

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