WeChat calls the permission configuration of js interfaces such as photo taking and photo uploading and downloading, and js photo uploading

Last Update:2016-08-06 Source: Internet

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Permission configuration and photo upload and download implementation for calling js interfaces such as photo taking, js photo upload

Directly run the Code:

1. Front-end debugging code:

<Html> 
Front-end here
Var url = window. location. href. split ('#') [0];
It is easy to make mistakes.


2. backend interface:
@ NoLogin @ RequestMapping (value = "/getConfigInfo. json ", method = RequestMethod. POST) @ ResponseBody public Object getConfigInfo (String url) throws NoSuchAlgorithmException {String noncestr = "dsfww"; JsapiTicket ticket = AccessTokenJsapiTicketThread. getTicket (); logger. debug ("ticket ::::::;" + JSON. toJSONString (ticket); System. out. println ("ticket :::::;" + JSON. toJSONString (ticket); if (ticket! = Null) {long timestamp = new Date (). getTime (); StringBuilder sb = new StringBuilder ("jsapi_ticket ="); sb. append (ticket. getTicket ()). append ("& noncestr = "). append (noncestr ). append ("& timestamp = "). append (timestamp ). append ("& url = "). append (url); MessageDigest md = MessageDigest. getInstance ("SHA-1"); // encrypted string sha1 byte [] digest = md. digest (sb. toString (). getBytes (); String signature = SignUtil. byteToSt R (digest ). toLowerCase (); Map <String, String> map = new HashMap <String, String> (); map. put ("jsapi_ticket", ticket. getTicket (); map. put ("appId", WxPayConfPub. APPID); map. put ("timestamp", String. valueOf (timestamp); map. put ("nonceStr", noncestr); map. put ("signature", signature); map. put ("originalStr", sb. toString (); logger. debug (JSON. toJSONString (map); System. out. println (JSON. toJSONString (map); r Eturn JsonConvertor. convertSuccessResult (map);} return JsonConvertor. convertFailResult (ErrorCodeEnum. SYSTEM_ERROR) ;}@ NoLogin @ RequestMapping (value = "/getPhoto. json ", method = RequestMethod. POST) @ ResponseBody public Object getPhoto (String media_id) throws NoSuchAlgorithmException {// http Request Method: GET, https call // var url = "https://api.weixin.qq.com/cgi-bin/media/get? Access_token = ACCESS_TOKEN & media_id = MEDIA_ID "; AccessToken token = AccessTokenJsapiTicketThread. accessToken; String url =" https://api.weixin.qq.com/cgi-bin/media/get? Access_token = "+ token. getAccess_token () + "& media_id =" + media_id; HttpsURLConnection httpsUrl = null; InputStream inputStream = null; Date now = new Date (); String saveFileName = null; try {httpsUrl = HttpUtil. initHttpsConnection (url, "GET"); int responseCode = httpsUrl. getResponseCode (); if (responseCode = 200) {// an input stream inputStream = httpsUrl is returned from the server. getInputStream (); byte [] data = new byte [10 24]; int len = 0; FileOutputStream fileOutputStream = null; saveFileName = DateUtil. convertYMDH (now) + RandomStringUtils. random (6, true, true) + ". jpg "; // absolute path String path = imageRootPath + DateUtil. convertYMD (now) + "/" + saveFileName; File dir = new File (imageRootPath + DateUtil. convertYMD (now) + "/"); if (! Dir. exists () {FileUtils. forceMkdir (dir);} try {fileOutputStream = new FileOutputStream (path); while (len = inputStream. read (data ))! =-1) {fileOutputStream. write (data, 0, len);} fileOutputStream. flush ();} catch (IOException e) {e. printStackTrace ();} finally {if (inputStream! = Null) {try {inputStream. close () ;}catch (IOException e) {}} if (fileOutputStream! = Null) {try {fileOutputStream. close () ;}catch (IOException e) {}}} catch (IOException e) {e. printStackTrace ();} // return the image path return JsonConvertor. convertSuccessResult (DateUtil. convertYMD (now) + "/" + saveFileName );}
/GetConfigInfo. json interface is used to configure jsapi permission authentication.
/GetPhoto. json downloads the photo from the server and saves it to our own server. Then, return the part of our own server to the front-end for use.

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