Java 对接google WIFI定位API

1.创建Http请求工具类

1.1.引入httpclient

<dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.10</version>
        </dependency>

1.2.封装Http工具类

/**
 * Http请求
 * @author Nr.li
 * @date 20220727
 */
@Slf4j
public class HttpUtils {
    private HttpUtils() {
    }

    private static CloseableHttpClient httpClient = HttpClientBuilder.create().build();
    @Autowired
    private static RequestConfig config;
    /**
     * 发送Http Post请求
     * @param url
     * @param paramsJson
     * @param headsMap
     * @return
     * @throws IOException
     */
    public static HttpResult httpPost(String url, String paramsJson, Map<String, String> headsMap) throws IOException {
        HttpResult httpResult = new HttpResult();
        try {
            CloseableHttpClient httpClient = HttpClients.createDefault();
            HttpPost httpPost = new HttpPost(url);
            //请求头
            if (headsMap != null && !headsMap.isEmpty()) {
                headsMap.forEach((key, value) -> {
                    httpPost.addHeader(key, value);
                });
            }
            if(headsMap==null){
                headsMap=new HashMap<>();
            }
            if (!headsMap.containsKey("Content-type")) {
                httpPost.addHeader("Content-type", "application/json;charset=utf-8");
            }
            StringEntity stringEntity = new StringEntity(paramsJson, "UTF-8");
            stringEntity.setContentType("application/json");
            httpPost.setEntity(stringEntity);
            CloseableHttpResponse response = httpClient.execute(httpPost);
            if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                HttpEntity result = response.getEntity();
                String resultStr = null;
                if (result != null) {
                    resultStr = EntityUtils.toString(result, "UTF-8");
                }
                httpClient.close();
                response.close();
                httpResult.setStatus(HttpStatus.SC_OK);
                httpResult.setResult(resultStr);
                return httpResult;
            } else {
                httpResult.setStatus(response.getStatusLine().getStatusCode());
                httpResult.setResult("");
                return httpResult;
            }
        }catch (Exception ex) {
            httpResult.setStatus(HttpStatus.SC_NOT_FOUND);
            httpResult.setResult(ex.getMessage());
            return httpResult;
        }
    }

    /**
     * 不带参数的get请求，如果状态码为200，则返回body，如果不为200，则返回null
     *
     * @param url
     * @return
     * @throws Exception
     */
    public static String doGet(String url,Map<String,String> headerMap) {
        try {
            // 声明 http get 请求
            HttpGet httpGet = new HttpGet(url);
            if(headerMap!=null) {
                for (String key : headerMap.keySet()) {
                    httpGet.addHeader(key, headerMap.get(key));
                }
            }
            // 装载配置信息
            httpGet.setConfig(config);
            // 发起请求
            CloseableHttpResponse response = httpClient.execute(httpGet);
            if(response!=null) {
                return EntityUtils.toString(response.getEntity(), "UTF-8");
            }else {
                return null;
            }
        }catch (Exception e) {
            return null;
        }
    }
}

2.请求API地址

2.1.谷歌WIFI API地址

https://www.googleapis.com/geolocation/v1/geolocate?key=你的谷歌key

2.2.请求参数实体类

WifiParams

/**
 * WIFI定位请求参数
 * @author Mr.li
 * @date 2023-06-07
 */
@Data
public class WifiParams {
    /**
     * 当WIFI无法定位的时候，是否采用IP定位，这里最好不要开启，设置为false
     */
    private boolean considerIp;
    private List<WifiAccessPoint> wifiAccessPoints;
}

WifiAccessPoint

/**
 * WIFI 信息
 * @author Mr.li
 * @date 2023-06-07
 */
@Data
public class WifiAccessPoint {
    private String macAddress;
    private Integer signalStrength;
    private Integer signalToNoiseRatio;
}

2.3.应答结果实体类

HttpResult

/**
 * Http 应答
 * @author Mr.li
 * @date 20220727
 */
@Data
public class HttpResult {
    private Integer status;
    private String result;
}

WifiLocation

/**
 * 经纬度定位实体类
 * @author Mr.li
 * @date 20210717
 */
@Data
public class WifiLocation {
    /**
     * lat lng
     */
    private Point location;
    private Double accuracy;
}

Point

/**
 * 经纬度点
 * @author Mr.li
 * @date 2023-06-07
 */
@Data
public class Point {
    private Double lat;
    private Double lng;
}

2.4.请求方法示例

public static void main(String[] args) {
        String url="https://www.googleapis.com/geolocation/v1/geolocate?key=你的谷歌key";
        WifiParams wifiParams=new WifiParams();
        List<WifiAccessPoint> wifiAccessPointList=new ArrayList<>();
        WifiAccessPoint accessPoint=new WifiAccessPoint();
        accessPoint.setMacAddress("e8:2c:6d:0f:b5:54");
        accessPoint.setSignalStrength(-59);
        accessPoint.setSignalToNoiseRatio(0);
        wifiAccessPointList.add(accessPoint);
        WifiAccessPoint accessPoint2=new WifiAccessPoint();
        accessPoint2.setMacAddress("ec:ad:e0:4e:cd:20");
        accessPoint2.setSignalStrength(-68);
        accessPoint2.setSignalToNoiseRatio(0);
        try {
            HttpResult httpResult = HttpUtils.httpPost(url, JSON.toJSONString(wifiParams), null);
            if (httpResult.getStatus() == 200) {
                String result = httpResult.getResult();
                WifiLocation wifiLocation = JSON.parseObject(result, WifiLocation.class);
                System.out.println(wifiLocation);
            }
        }catch (Exception e){
            log.error("WiFi定位请求异常:",e);
        }
    }

3.特别说明

3.1.网络限制

谷歌API请求，必须使用国外/香港网络才能正常请求，否则是无法请求通过。

3.2.WIFI MAC数量

至少需要两个WIFI的MAC地址方可请求到经纬度信息

3.3.区域限制

目前国内WIFI信息无法进行定位，只有国外的WIFI MAC地址才能请求到位置，不过也不一定完全准确，目前我测试的情况是这样，国内使用了大量的WIFI MAC地址都无法请求到位置。