微信js-sdk实现分享到朋友圈

骑猪看日落 2022-06-03 08:11 327阅读 0赞

微信接口文档地址：https://mp.weixin.qq.com/wiki?t=resource/res\_main&id=mp1421141115&token=&lang=zh\_CN

实现步骤：

1.绑定域名

先登录微信公众平台进入“公众号设置”的“功能设置”里填写“JS接口安全域名”。（特别提示不需要加上http或者https,吃过亏）

2.页面引入js文件

3.通过config接口注入权限验证配置

wx.config(\{

debug: true, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。

appId: '', // 必填，公众号的唯一标识

timestamp: , // 必填，生成签名的时间戳

nonceStr: '', // 必填，生成签名的随机串

signature: '',// 必填，签名，见附录1

jsApiList: \[\] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2

\});

4.通过ready接口处理成功验证

wx.ready(function()\{

//详细代码

\});

通过error接口处理失败验证

wx.error(function(res)\{\});

详细页面代码

\[html\]  [view plain][]  [copy][view plain]

1.  <script>  
2.  //微信分享朋友圈  
3.  $(function()\{  
4.    /\*\*\*用户点击分享到微信圈后加载接口接口\*\*\*\*\*\*\*/  
5.      var url=window.location.href.split('\#')\[0\];  
6.       url = url.replace(/&/g, '%26');  
7.      console.log("url:"+url);  
8.      $.ajax(\{  
9.          url: "<%=basePath%>/lottery/shareToFriend.action?url="+url,  
10.         type: "POST",  
11.         async:true,  
12.         cache: false,  
13.         dataType: "json",  
14.         success: function(data)\{  
15.             wx.config(\{  
16.               debug: false,  
17.               appId: 'wx2948dfef9ef421ee',  
18.               timestamp:data.timeStamp,  
19.               nonceStr:data.nonceStr,  
20.               signature:data.signature,  
21.               jsApiList: \[  
22.                   'checkJsApi',  
23.                   'onMenuShareTimeline',  
24.                   'hideOptionMenu',  
25.                   'onMenuShareAppMessage'  
26.               \]  
27.           \});  
28.               
29.           wx.ready(function()\{  
30.              //wx.hideOptionMenu();/\*\*\*隐藏分享菜单\*\*\*\*/   
31.              wx.checkJsApi(\{  
32.               jsApiList: \[  
33.                 'getLocation',  
34.                 'onMenuShareTimeline',  
35.                 'onMenuShareAppMessage'  
36.               \],  
37.               success: function (res) \{  
38.                 //alert(res.errMsg);  
39.               \}  
40.             \});  
41.                
42.             wx.onMenuShareAppMessage(\{  
43.                   title: '刮刮乐',  
44.                   desc: '刮刮乐开始啦',  
45.                   link: '<%=basePath%>/lottery/lottery.action?lottery.id=$\{lottery.id\}',  
46.                   imgUrl: '<%=basePath%>/resources/qjc/img/start.png',  
47.                   trigger: function (res) \{  
48.                     //alert('用户点击发送给朋友');  
49.                   \},  
50.                   success: function (res) \{  
51.                     alert('您已获得抽奖机会，赶紧去赢大奖吧～～');  
52.                     //分享之后增加游戏次数  
53.                     $.ajax(\{  
54.                         url: "<%=basePath%>/lottery/rewardPlayCount.action?openId=$\{openId\}&lotteryId=$\{lottery.id\}&shareType=friend",  
55.                         type: "POST",  
56.                         async:true,  
57.                         cache: false,  
58.                         dataType: "json",  
59.                         success: function(data)\{  
60.                               
61.                         \}  
62.                      \});  
63.                   \},  
64.                   cancel: function (res) \{  
65.                     //alert('已取消');  
66.                   \},  
67.                   fail: function (res) \{  
68.                     alert(res.errMsg);  
69.                   \}  
70.                \});  
71.               
72.               // 2.2 监听“分享到朋友圈”按钮点击、自定义分享内容及分享结果接口  
73.               wx.onMenuShareTimeline(\{  
74.                   title: '刮刮乐',  
75.                   desc: '刮刮乐开始啦',  
76.                   link: '<%=basePath%>/lottery/lottery.action?lottery.id=$\{lottery.id\}',  
77.                   imgUrl: '<%=basePath%>/resources/qjc/img/start.png',  
78.                   trigger: function (res) \{  
79.                     //alert('用户点击分享到朋友圈');  
80.                   \},  
81.                   success: function (res) \{  
82.                     alert('您已获得抽奖机会，赶紧去赢大奖吧～～');  
83.                     //分享之后增加游戏次数  
84.                     $.ajax(\{  
85.                         url: "<%=basePath%>/lottery/rewardPlayCount.action?openId=$\{openId\}&lotteryId=$\{lottery.id\}&shareType=friendCircle",  
86.                         type: "POST",  
87.                         async:true,  
88.                         cache: false,  
89.                         dataType: "json",  
90.                         success: function(data)\{  
91.                               
92.                         \}  
93.                      \});  
94.                   \},  
95.                   cancel: function (res) \{  
96.                     //alert('已取消');  
97.                   \},  
98.                   fail: function (res) \{  
99.                     alert(res.errMsg);  
100.                   \}  
101.             \});  
102.                
103.             wx.error(function (res) \{  
104.                    alert(res.errMsg);  
105.                \});  
106.            \});    
107.         \},  
108.         error: function() \{  
109.             alert('ajax request failed!!!!');  
110.             return;  
111.         \}   
112.     \});  
113.   \});  
114.   
115. </script>

java后台action代码：

\[java\]  [view plain][]  [copy][view plain]

1.  //微信分享  
2.      public void shareToFriend()\{  
3.          HttpServletRequest request = ServletActionContext.getRequest();  
4.          String timeStamp = Sha1Util.getTimeStamp();//时间戳  
5.          String nonceStr = WxConfig.getUUID();//随机字符串，不长于32位  
6.          String url=request.getParameter("url");  
7.          String signature = WxConfig.getSignature("APPId", "APP\_secret", url, timeStamp, nonceStr);  
8.          request.setAttribute("timeStamp", timeStamp);  
9.          request.setAttribute("nonceStr", nonceStr);  
10.         request.setAttribute("url", url);  
11.         request.setAttribute("signature", signature);  
12.         WXjssdk result = new WXjssdk(timeStamp,nonceStr,signature,url);  
13.         CommonUtil.returnMsg(ServletActionContext.getResponse(), new Gson().toJson(result));  
14.     \}

\[java\]  [view plain][]  [copy][view plain]

1.  WxConfig.java代码

\[java\]  [view plain][]  [copy][view plain]

1.  <pre name="code" class="java">//jsapi\_ticket  
2.      public final static String WEIXIN\_JSAPI\_TICKET\_URL ="https://api.weixin.qq.com/cgi-bin/ticket/getticket?access\_token=ACCESS\_TOKEN&type=jsapi";  
3.        
4.      //access\_token   
5.      public static String getAccessToken(String appId,String appSecret)\{  
6.          String access\_token;  
7.          access\_token = mapToken.get("accessToken");  
8.          if(access\_token==null)\{  
9.              String url = HttpUtil.WEIXIN\_HOST\_API + "/cgi-bin/token?grant\_type=client\_credential&appid="\+appId+"&secret="\+appSecret;  
10.             String menuJsonStr = HttpUtil.get(url);  
11.             final Type type = new TypeToken<Map<String, Object>>() \{\}.getType();  
12.             final Map<Object, Object> accessTokenInfo = new Gson().fromJson(menuJsonStr, type);  
13.             try\{  
14.                 access\_token = accessTokenInfo.get("access\_token").toString();  
15.                 Object expires\_in = accessTokenInfo.get("expires\_in");  
16.                 mapToken.put("accessToken", access\_token);  
17.                 logger.info("access\_token:"\+access\_token+";expires\_in:"\+expires\_in);  
18.             \}catch (JSONException e) \{  
19.                 access\_token = null;  
20.                 e.printStackTrace();  
21.                 logger.error("errcode:\{\}:"\+accessTokenInfo.get("errcode")+"errmsg:\{\}:"\+accessTokenInfo.get("errmsg"));  
22.             \}  
23.         \}  
24.         return access\_token;  
25.     \}  
26.       
27.     //jsapi\_ticket  
28.     public static String getJsapiTicket(String accessToken)\{  
29.         String ticket;  
30.         ticket = mapTicket.get("ticket");  
31.         if(ticket==null)\{  
32.             String url = HttpUtil.WEIXIN\_HOST\_API + "/cgi-bin/ticket/getticket?access\_token="\+accessToken+"&type=jsapi";  
33.             String menuJsonStr = HttpUtil.get(url);  
34.             final Type type = new TypeToken<Map<String, Object>>() \{\}.getType();  
35.             final Map<Object, Object> ticketInfo = new Gson().fromJson(menuJsonStr, type);  
36.             try\{  
37.                 ticket = ticketInfo.get("ticket").toString();  
38.                 String expires\_in = ticketInfo.get("expires\_in").toString();  
39.                 mapTicket.put("ticket", ticket);  
40.                 logger.info("jsapi\_ticket:"\+ticket+";expires\_in:"\+expires\_in);  
41.             \}catch (JSONException e) \{  
42.                 ticket = null;  
43.                 e.printStackTrace();  
44.                 logger.error("ticket  errcode:\{\}:"\+ticketInfo.get("errcode")+"errmsg:\{\}:"\+ticketInfo.get("errmsg"));  
45.             \}  
46.         \}  
47.         return ticket;  
48.     \}  
49.       
50.      //生成随机字符串UUID  
51.     public static String getUUID()\{      
52.           String uuid = UUID.randomUUID().toString().trim().replaceAll("-", "");      
53.           return uuid;      
54.     \}   
55.       
56.     //JS-SDK Signature  
57.     public static String getSignature(String appId,String appSecret,String url,String timeStamp,String nonceStr)\{  
58.         String accessToken = getAccessToken(appId,appSecret);  
59.         String jsapi\_ticket = getJsapiTicket(accessToken);  
60.         logger.info("accessToken==="\+accessToken);  
61.         String signValue = "jsapi\_ticket="\+jsapi\_ticket+"&noncestr="\+nonceStr+"×tamp="\+timeStamp+"&url="\+url;  
62.         logger.info("微信JS-SDK权限验证的签名串："\+signValue);  
63.         //这个签名.主要是给加载微信js使用.别和上面的搞混了.  
64.         String signature = Sha1Util.getSha1((signValue));  
65.         logger.info("微信JS-SDK权限验证的签名："\+signature);  
66.         return signature;  
67.     \}

另外项目用到的

\[java\]  [view plain][]  [copy][view plain]

1.  Sha1Util.java和MD5Util.java可以直接在平台下载。

[view plain]: http://blog.csdn.net/xiaoguo321/article/details/51483914#