微信自定義分享

前端時間,開發了一個資訊類的項目,但銷售部門進行微信推廣時,分享的連接直接是網頁連接加分享符號,即難看又不正規,因而研究了一下微信自定義的分享功能javascript

未配置自義定分享時,分享的頁面:前端

成功配置後:  java

前期準備工做:ajax

1.認證公衆號的appId,appSecretjson

2.各類獲取微信信息連接,封裝在配置文件裏(此部分查找微信自定義分享API,地址:https://mp.weixin.qq.com/wiki?t=resource/res_main&id=mp1421141115)api

 # 獲取access_token請求地址
  getAccessTokenUrl: https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=%s&secret=%s
  #獲取accessToken
  getAccessTokenOAuthUrl: https://api.weixin.qq.com/sns/oauth2/access_token?appid=%s&secret=%s&code=%s&grant_type=authorization_code
  # 獲取用戶基本信息請求地址
  getUserInfoUrl: https://api.weixin.qq.com/sns/userinfo?access_token=%s&openid=%s&lang=zh_CN
  #獲取code
  getCodeUrl: https://open.weixin.qq.com/connect/oauth2/authorize?appid=%s&redirect_uri=%s&response_type=%s&scope=%s&state=%s#wechat_redirect
  #獲取ticket
  getTicketUrl: https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=%s&type=jsapi

3.controller層數組

       /**
     * 微信配置信息實體
     */
    @Autowired
    private WeiXinProperties weiXinProperties;
    //微信參數
    private String accessToken;
    private String jsApiTicket;
    //獲取參數的時刻
    private Long getTiketTime = 0L;
    private Long getTokenTime = 0L;
    //參數的有效時間,單位是秒(s)
    private Long tokenExpireTime = 0L;
    private Long ticketExpireTime = 0L;

 /**
     * 微信自定義分享
     */
    @RequestMapping(value = "/getShareInfo", method = RequestMethod.POST)
    public Map<String, String> getShareInfo(HttpServletRequest request,
                                            HttpServletResponse response, String url) {
        //當前時間
        long now = System.currentTimeMillis();

        //判斷accessToken是否已經存在或者token是否過時
        if (StringUtils.isBlank(accessToken) || (now - getTokenTime > tokenExpireTime * 1000)) {
            JSONObject tokenInfo = getAccessToken();
            if (tokenInfo != null) {
                accessToken = tokenInfo.getString("access_token");
                tokenExpireTime = tokenInfo.getLongValue("expires_in");
                //獲取token的時間
                getTokenTime = System.currentTimeMillis();
                log.info("accessToken====>" + accessToken);
                log.info("tokenExpireTime====>" + tokenExpireTime + "s");
                log.info("getTokenTime====>" + getTokenTime + "ms");
            } else {
                log.info("====>tokenInfo is null~");
                log.info("====>failure of getting tokenInfo,please do some check~");
            }
        }
        //判斷jsApiTicket是否已經存在或者是否過時
        if (StringUtils.isBlank(jsApiTicket) || (now - getTiketTime > ticketExpireTime * 1000)) {
            JSONObject ticketInfo = getJsApiTicket(accessToken);
            if (ticketInfo != null) {
                log.info("ticketInfo====>" + ticketInfo.toJSONString());
                jsApiTicket = ticketInfo.getString("ticket");
                ticketExpireTime = ticketInfo.getLongValue("expires_in");
                getTiketTime = System.currentTimeMillis();
                log.info("jsApiTicket====>" + jsApiTicket);
                log.info("ticketExpireTime====>" + ticketExpireTime + "s");
                log.info("getTiketTime====>" + getTiketTime + "ms");
            } else {
                log.info("====>ticketInfo is null~");
                log.info("====>failure of getting tokenInfo,please do some check~");
            }
        }
        //生成微信權限驗證的參數
        Map<String, String> wechatParam = makeWXTicket(jsApiTicket, url);
        return wechatParam;

    }

    //獲取accessToken
    private JSONObject getAccessToken() {
        //String accessTokenUrl = https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET
        //獲取微信端的accessToken
        String requestUrl = String.format(weiXinProperties.getGetAccessTokenUrl(), weiXinProperties.getAppId(), weiXinProperties.getAppSecret());
        String result = send(requestUrl);
        JSONObject jsonObject = JSON.parseObject(result);
        return jsonObject;
    }

    //獲取ticket
    private JSONObject getJsApiTicket(String access_token) {
        //String apiTicketUrl = https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=ACCESS_TOKEN&type=jsapi
        // 經過acessToken 獲取ticket
        String requestUrl = String.format(weiXinProperties.getGetTicketUrl(), access_token);
        String result = send(requestUrl);  //此部分用到了咱們項目的工具類,整段複製本代碼時,能夠用如下代替
     //JSONObject jsonObject = httpUtils.doGet(requestUrl) JSONObject jsonObject
= JSON.parseObject(result); return jsonObject; } //生成微信權限驗證的參數 public Map<String, String> makeWXTicket(String jsApiTicket, String url) { Map<String, String> ret = new HashMap<String, String>(); String nonceStr = createNonceStr(); String timestamp = createTimestamp(); String string1; String signature = ""; //注意這裏參數名必須所有小寫,且必須有序 string1 = "jsapi_ticket=" + jsApiTicket + "&noncestr=" + nonceStr + "&timestamp=" + timestamp + "&url=" + url; log.info("String1=====>" + string1); try { MessageDigest crypt = MessageDigest.getInstance("SHA-1"); crypt.reset(); crypt.update(string1.getBytes("UTF-8")); signature = byteToHex(crypt.digest()); log.info("signature=====>" + signature); } catch (NoSuchAlgorithmException e) { log.error("WeChatController.makeWXTicket=====Start"); log.error(e.getMessage(), e); log.error("WeChatController.makeWXTicket=====End"); } catch (UnsupportedEncodingException e) { log.error("WeChatController.makeWXTicket=====Start"); log.error(e.getMessage(), e); log.error("WeChatController.makeWXTicket=====End"); } ret.put("url", url); ret.put("jsapi_ticket", jsApiTicket); ret.put("nonceStr", nonceStr); ret.put("timestamp", timestamp); ret.put("signature", signature); ret.put("appid", weiXinProperties.getAppId()); return ret; } /** * 發送請求 * * @param url * @return * @throws Exception */ String send(String url) { return HttpClientTools.post(url); } //字節數組轉換爲十六進制字符串 private static String byteToHex(final byte[] hash) { Formatter formatter = new Formatter(); for (byte b : hash) { formatter.format("%02x", b); } String result = formatter.toString(); formatter.close(); return result; } //生成隨機字符串 private static String createNonceStr() { return UUID.randomUUID().toString(); } //生成時間戳 private static String createTimestamp() { return Long.toString(System.currentTimeMillis() / 1000); }

4.引入share.js.要分享的頁面安全

$(function(){
    var url = location.href.split('#').toString();//url不能寫死
    $.ajax({
        type : "post",
        url : "/user/login/getShareInfo",
        dataType : "json",
        async : false,
        data:{url:url},
        success : function(data) {
            wx.config({
                debug: false,////生產環境須要關閉debug模式
                appId: data.appid,//appId經過微信服務號後臺查看
                timestamp: data.timestamp,//生成簽名的時間戳
                nonceStr: data.nonceStr,//生成簽名的隨機字符串
                signature: data.signature,//簽名
                jsApiList: [//須要調用的JS接口列表
                    'checkJsApi',//判斷當前客戶端版本是否支持指定JS接口
                    'onMenuShareTimeline',//分享給好友
                    'onMenuShareAppMessage'//分享到朋友圈
                ]
            });
        },
        error: function(xhr, status, error) {
            //alert(status);
            //alert(xhr.responseText);
        }
    })
});

5.在要分享的頁面中引入,微信分享的核心js和share.js微信

<script type="text/javascript" src="/resources/js/jweixin-1.2.0.js"></script>app

<script type="text/javascript" src="/resources/js/share.js"></script>

6.在當前頁面<script>中,此部分能夠直接寫到share.js中

        /*分享代碼*/
        wx.ready(function() {
            // config信息驗證後會執行ready方法,全部接口調用都必須在config接口得到結果以後,config是一個客戶端的異步操做,因此若是須要在頁面加載時就調用相關接口,則須把相關接口放在ready函數中調用來確保正確執行。對於用戶觸發時才調用的接口,則能夠直接調用,不須要放在ready函數中。
            console.log('weixin 驗證成功');
            // 分享到朋友圈
            wx.onMenuShareTimeline({
                title: detail_title, // 分享標題
                link: link, // 分享連接,該連接域名或路徑必須與當前頁面對應的公衆號JS安全域名一致
                imgUrl: 'http://develop.fangxinyuesao.com/resources/images/logo.png', // 分享圖標
                success: function() {
                    // 用戶確認分享後執行的回調函數
                },
                cancel: function() {
                    // 用戶取消分享後執行的回調函數
                }
            });

            // 分享給朋友
            wx.onMenuShareAppMessage({
                title: detail_title, // 分享標題
                desc: '來自婦幼頭條的分享', // 分享描述
                link: link, // 分享連接,該連接域名或路徑必須與當前頁面對應的公衆號JS安全域名一致
                imgUrl: 'http://develop.fangxinyuesao.com/resources/images/logo.png', // 分享圖標
                type: '', // 分享類型,music、video或link,不填默認爲link
                dataUrl: '', // 若是type是music或video,則要提供數據連接,默認爲空
                success: function() {
                    // 用戶確認分享後執行的回調函數
                },
                cancel: function() {
                    // 用戶取消分享後執行的回調函數
                }
            });

        });

        wx.error(function(res) {
            // config信息驗證失敗會執行error函數,如簽名過時致使驗證失敗,具體錯誤信息能夠打開config的debug模式查看,也能夠在返回的res參數中查看,對於SPA能夠在這裏更新簽名。
            console.log('weixin 驗證失敗');
            console.log(res);
        });

 

注意事項:分享要設置網站白名單,電腦端調試時,推薦使用微信WEB開發工具
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