吐槽

最近在自研开发一款有关读取健康数据的APP

但是数据来源非常稀少，申请了市面上所有的国内厂商的手环api都被拒了（因为是个人开发）

找了很久发现fitbit有开源的api于是淘了个fitbit的手表开始开发

Web API (fitbit.com)

在上述连接可以按步骤使用api

不知道是不是因为我英语不好的原因，总是感觉开发文档写的很拉，想找找大佬的实例代码跑一下，发现要么找不到，要么直接没法用。

没办法只能手搓。。。

以下是项目结构

pom

<dependencies><dependency><groupId>com.anXin</groupId><artifactId>anXin-utils</artifactId><version>3.6.3</version></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><scope>test</scope></dependency><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpclient</artifactId><version>4.5.13</version></dependency><dependency><groupId>com.google.code.gson</groupId><artifactId>gson</artifactId></dependency></dependencies>

utils是我自己的工具类，其实只用到了base64加密随便搜一个替换就行

思路

首先注册一个应用程序，这个很简单不教学了，主要是获取token等关键信息，因为这些api都基于这些关键信息

他的授权码请求URL

https://www.fitbit.com/oauth2/authorize?client_id=ABC123&response_type=code
&code_challenge=<code_challenge>&code_challenge_method=S256
&scope=activity%20heartrate%20location%20nutrition%20oxygen_saturation%20profile
%20respiratory_rate%20settings%20sleep%20social%20temperature%20weight

但是会跳出以下授权页面

抓包发现是全部授权后会重定向，因此直接模拟浏览器重定向请求，在下面的代码已经给出

即可获取授权码来获取token

要注意的是请求一定要携带cookie不然会自动重定向到登录

实现

service定义接口

实现类先预留以下属性

 private String clientId="你的客户端id";private String clientSecret="你的客户端秘钥";private String scope="activity heartrate location nutrition profile settings sleep social weight";private String userAuthorizationUri="https://www.fitbit.com/oauth2/authorize";private String accessTokenUri="https://api.fitbit.com/oauth2/token";private String code;private String access_token;private String refresh_token;private String token_type;private String user_id;

接下来实现接口

 try {// 创建CookieStore并设置CookieCookieStore cookieStore = new BasicCookieStore();BasicClientCookie cookie = new BasicClientCookie("Cookie", "自己在请求头那里复制"); // 替换为实际的Cookie信息cookie.setDomain("www.fitbit.com"); // 设置Cookie的作用域cookie.setPath("/"); // 设置Cookie的路径cookieStore.addCookie(cookie);CloseableHttpClient httpClient = HttpClients.custom().setDefaultCookieStore(cookieStore).build();String postData ="client_id="+clientId+"&response_type=code&scope=activity+heartrate+location+nutrition+oxygen_saturation+profile+respiratory_rate+settings+sleep+social+temperature+weight&state&prompt=none";HttpPost httpPost = new HttpPost(userAuthorizationUri);// 设置POST请求的Content-TypehttpPost.setHeader("Content-Type", "application/x-www-form-urlencoded");// 设置POST请求的参数StringEntity entity = new StringEntity(postData, StandardCharsets.UTF_8);httpPost.setEntity(entity);CloseableHttpResponse response = httpClient.execute(httpPost);int statusCode = response.getStatusLine().getStatusCode();if (statusCode==302){Header locationHeader = response.getFirstHeader("Location");if (locationHeader != null) {String redirectURL = locationHeader.getValue();System.out.println("==================以下为fitbit服务信息===============");System.out.println("重定向的路径：" + redirectURL);code=redirectURL.substring(redirectURL.indexOf('=')+1).split("#")[0];System.out.println("Authorize为"+code);} else {System.out.println("未找到重定向路径");}}else {log.error("fitbit获取code失败");}CloseableHttpClient tokenHttpClient = HttpClients.createDefault();String tokenPostData = "grant_type=authorization_code&code="+code;HttpPost tokenHttpPost = new HttpPost(accessTokenUri);// 设置POST请求的Content-TypetokenHttpPost.setHeader("Authorization","Basic "+Base64Utils.encode((clientId+":"+clientSecret).getBytes()));tokenHttpPost.setHeader("Content-Type", "application/x-www-form-urlencoded");// 设置POST请求的参数StringEntity tokenEntity = new StringEntity(tokenPostData, StandardCharsets.UTF_8);tokenHttpPost.setEntity(tokenEntity);CloseableHttpResponse tokenResponse = tokenHttpClient.execute(tokenHttpPost);BufferedReader reader = new BufferedReader(new InputStreamReader(tokenResponse.getEntity().getContent()));StringBuilder jsonResponse = new StringBuilder();String line;while ((line = reader.readLine()) != null) {jsonResponse.append(line);}System.out.println("返回的JSON数据：" + jsonResponse.toString());Gson gson = new Gson();Map<String,Object> map = gson.fromJson(jsonResponse.toString(), Map.class);access_token= (String) map.get("access_token");refresh_token= (String) map.get("refresh_token");token_type= (String) map.get("token_type");user_id= (String) map.get("user_id");System.out.println("access_token为"+access_token);System.out.println("refresh_token为"+refresh_token);System.out.println("token_type为"+token_type);System.out.println("user_id为"+user_id);System.out.println("==================fitbit服务信息结束===============");}catch (Exception e){log.error("获取fitbit的token失败！");e.printStackTrace();}

 

手搓成功！