springboot 微信授權網頁登錄操作流程
操作流程
假設你已經有自己的域名,因為微信公眾號和微信回調都需要域名
先看看官方給的文檔
根據官方文檔,主要流程如下:
(1)引導用戶進入授權頁面同意授權,獲取code
(2)通過code換取網頁授權access_token(與基礎支持中的access_token不同)
(3)刷新access_token(如果有需要)
(3)通過網頁授權access_token和openid獲取用戶基本信息
提示:以下是本篇文章正文內容,下面案例可供參考
編寫微信授權方法和獲取用戶信息方法
二、使用步驟
獲取微信二維碼信息
代碼如下(示例):
/** * 公眾號微信登錄授權 */ @RequestMapping("/wxLogin") public void wxLogin(HttpServletResponse response) throws IOException { //這個url的域名必須在公眾號中進行注冊驗證,這個地址是成功后的回調地址 String backUrl = "http://7ca0c439f61c.ngrok.io/callback";//使用自己的域名 // 第一步:用戶同意授權,獲取code //請求地址 snsapi_base snsapi_userinfo String url = "https://open.weixin.qq.com/connect/oauth2/authorize" + "?appid=" + HttpClientUtil.APPID + "&redirect_uri=" + URLEncoder.encode(backUrl,"utf-8") + "&response_type=code" + "&scope=snsapi_userinfo" + "&state=STATE#wechat_redirect"; logger.info("forward重定向地址{" + url + "}"); //必須重定向,否則不能成功 response.sendRedirect(url); } 備注:在前端頁面直接加載url 就可以出現(xiàn)二維碼界面了。直接用的微信的頁面,也可以根據自己的愛好進行設計頁面 /** * 公眾號微信登錄授權回調函數(shù) */ @RequestMapping("/callback") public UserLoginRes callback(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { UserLoginRes userLoginRes = new UserLoginRes(); try{ WXUserInfoReq weixinUserInfo = new WXUserInfoReq(); /*start 獲取微信用戶基本信息*/ String code = req.getParameter("code"); //第二步:通過code換取網頁授權access_token String url = "https://api.weixin.qq.com/sns/oauth2/access_token?" + "appid=" + HttpClientUtil.APPID + "&secret=" + HttpClientUtil.APPSECRET + "&code=" + code + "&grant_type=authorization_code"; System.out.println(url); String result = HttpClientUtil.doGet(url); JSONObject jsonObject = JSON.parseObject(result); /* { "access_token":"ACCESS_TOKEN", "expires_in":7200, "refresh_token":"REFRESH_TOKEN", "openid":"OPENID", "scope":"SCOPE" } */ String openid = jsonObject.getString("openid"); String access_token = jsonObject.getString("access_token"); //第三步驗證access_token是否失效; String chickUrl = "https://api.weixin.qq.com/sns/auth?access_token=" + access_token + "&openid=" + openid; String resultInfo = HttpClientUtil.doGet(chickUrl); JSONObject chickuserInfo = JSON.parseObject(resultInfo); System.out.println(chickuserInfo.toString()); if (!"0".equals(chickuserInfo.getString("errcode"))) { String refreshInfo1 = HttpClientUtil.doGet(chickUrl); JSONObject refreshInfo = JSON.parseObject(refreshInfo1); /* { "access_token":"ACCESS_TOKEN", "expires_in":7200, "refresh_token":"REFRESH_TOKEN", "openid":"OPENID", "scope":"SCOPE" } */ access_token = refreshInfo.getString("access_token"); } // 第四步:拉取用戶信息 String infoUrl = "https://api.weixin.qq.com/sns/userinfo?access_token=" + access_token + "&openid=" + openid + "&lang=zh_CN"; JSONObject userInfo = JSON.parseObject(HttpClientUtil.doGet(infoUrl)); /* { "openid":" OPENID", "nickname": NICKNAME, "sex":"1", "province":"PROVINCE" "city":"CITY", "country":"COUNTRY", "headimgurl": "http://wx.qlogo.cn/mmopen/g3MonUZtNHkdmzicIlibx6iaFqAc56vxLSUfpb6n5WKSYVY0ChQKkiaJSgQ1dZuTOgvLLrhJbERQQ4eMsv84eavHiaiceqxibJxCfHe/46", "privilege":[ "PRIVILEGE1" "PRIVILEGE2" ], "unionid": "o6_bmasdasdsad6_2sgVt7hMZOPfL" } */ System.out.println(userInfo.getString("openid") + ":" + userInfo.getString("nickname") +":" + userInfo.getString("sex")); }catch (Exception e){ e.printStackTrace(); userLoginRes.setResult("NO"); userLoginRes.setRtnErrId("ERROR"); userLoginRes.setRtnErrMsg(e.getMessage()); } return userLoginRes; }
使用到的HttpClientUtil工具類
代碼如下(示例):
public class HttpClientUtil { //appid、secret為自己公眾號平臺的appid和secret public static final String APPID="xxxxxxx"; public static final String APPSECRET ="xxxxxxx"; public static String doGet(String url, Map<String, String> param) { // 創(chuàng)建Httpclient對象 CloseableHttpClient httpclient = HttpClients.createDefault(); String resultString = ""; CloseableHttpResponse response = null; HttpGet httpGet = null; try { // 創(chuàng)建uri URIBuilder builder = new URIBuilder(url); if (param != null) { for (String key : param.keySet()) { builder.addParameter(key, param.get(key)); } } URI uri = builder.build(); // 創(chuàng)建http GET請求 httpGet = new HttpGet(uri); httpGet.setHeader("Host", "api.weixin.qq.com"); httpGet.setHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko"); httpGet.setHeader("Accept", "text/html, application/xhtml+xml, */*"); httpGet.setHeader("Accept-Encoding", "gzip, deflate, br"); httpGet.setHeader("Connection", "keep-alive"); httpGet.setHeader("Accept-Language", "zh-CN"); httpGet.setHeader("Cache-Control", "no-cache"); // 執(zhí)行請求 response = httpclient.execute(httpGet); // 判斷返回狀態(tài)是否為200 if (response.getStatusLine().getStatusCode() == 200) { resultString = EntityUtils.toString(response.getEntity(), "UTF-8"); } } catch (Exception e) { e.printStackTrace(); } finally { try { if (response != null) { response.close(); } httpGet.releaseConnection(); httpclient.close(); } catch (IOException e) { e.printStackTrace(); } } return resultString; } public static String doGet(String url) { return doGet(url, null); } public static String doPost(String url, Map<String, String> param) { // 創(chuàng)建Httpclient對象 CloseableHttpClient httpClient = HttpClients.createDefault(); CloseableHttpResponse response = null; String resultString = ""; try { // 創(chuàng)建Http Post請求 HttpPost httpPost = new HttpPost(url); // 創(chuàng)建參數(shù)列表 if (param != null) { List<NameValuePair> paramList = new ArrayList<>(); for (String key : param.keySet()) { paramList.add(new BasicNameValuePair(key, param.get(key))); } // 模擬表單 UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramList); httpPost.setEntity(entity); } // 執(zhí)行http請求 response = httpClient.execute(httpPost); resultString = EntityUtils.toString(response.getEntity(), "utf-8"); } catch (Exception e) { e.printStackTrace(); } finally { try { response.close(); } catch (IOException e) { e.printStackTrace(); } } return resultString; } public static String doPost(String url) { return doPost(url, null); } public static String doPostJson(String url, String json) { // 創(chuàng)建Httpclient對象 CloseableHttpClient httpClient = HttpClients.createDefault(); CloseableHttpResponse response = null; String resultString = ""; try { // 創(chuàng)建Http Post請求 HttpPost httpPost = new HttpPost(url); // 創(chuàng)建請求內容 StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON); httpPost.setEntity(entity); // 執(zhí)行http請求 response = httpClient.execute(httpPost); resultString = EntityUtils.toString(response.getEntity(), "utf-8"); } catch (Exception e) { e.printStackTrace(); } finally { try { response.close(); } catch (IOException e) { e.printStackTrace(); } } return resultString; } public static String doGetStr(String httpurl) { HttpURLConnection connection = null; InputStream is = null; BufferedReader br = null; String result = null;// 返回結果字符串 try { // 創(chuàng)建遠程url連接對象 URL url = new URL(httpurl); // 通過遠程url連接對象打開一個連接,強轉成httpURLConnection類 connection = (HttpURLConnection) url.openConnection(); // 設置連接方式:get connection.setRequestMethod("GET"); // 設置連接主機服務器的超時時間:15000毫秒 connection.setConnectTimeout(15000); // 設置讀取遠程返回的數(shù)據時間:60000毫秒 connection.setReadTimeout(60000); //設置請求頭 connection.setRequestProperty("Host", "api.weixin.qq.com"); connection.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko"); connection.setRequestProperty("Accept", "text/html, application/xhtml+xml, */*"); connection.setRequestProperty("Accept-Encoding", "gzip, deflate, br"); connection.setRequestProperty("Connection", "keep-alive"); connection.setRequestProperty("Accept-Language", "zh-CN"); connection.setRequestProperty("Cache-Control", "no-cache"); // 發(fā)送請求 connection.connect(); // 通過connection連接,獲取輸入流 if (connection.getResponseCode() == 200) { is = connection.getInputStream(); // 封裝輸入流is,并指定字符集 br = new BufferedReader(new InputStreamReader(is, "UTF-8")); // 存放數(shù)據 StringBuffer sbf = new StringBuffer(); String temp = null; while ((temp = br.readLine()) != null) { sbf.append(temp); sbf.append("\r\n"); } result = sbf.toString(); } } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { // 關閉資源 if (null != br) { try { br.close(); } catch (IOException e) { e.printStackTrace(); } } if (null != is) { try { is.close(); } catch (IOException e) { e.printStackTrace(); } } connection.disconnect();// 關閉遠程連接 } return result; } }
最后根據實際業(yè)務處理用戶登錄
//3.根據uuid查詢用戶是否存在,如果存在直接登錄。如果不存在則自動注冊,在登錄 UserInfoModel userInfoByWechat = iUserDao.getUserInfoByWechat(userInfoStr.get("unionid").toString()); if (userInfoByWechat != null) { return ReturnMessage.success(0,"獲取成功",userInfoByWechat); } //4.數(shù)據庫添加用戶信息 String username = userInfoStr.get("nickname").toString(); String unionid = userInfoStr.get("unionid").toString(); UserInfoBean userInfoBean = new UserInfoBean(); userInfoBean.setUuid(unionid); userInfoBean.setUsername(username); // 微信登錄 userInfoBean.setStatus(2); iUserDao.insertUser(userInfoBean); //5.根據uuid查詢新注冊的用戶信息 UserInfoModel userInfoModel= iUserDao.getUserInfoByWechat(unionid); if (userInfoModel == null) { return ReturnMessage.fail(400,"用戶添加失敗,請重新操作"); }
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