Upload pictures on WeChat JSSDK

/**
  * Get access_token
  *
  * @param appid
  * Voucher
  * @param appsecret
  * Key
  * @return
  */ 
public static WxAccessToken getAccessToken() { 
  WxAccessToken accessToken = null; 
  String requestUrl = access_token_url.replace("APPID", ("WX_PL_APP_ID")).replace( 
      "APPSECRET", ("APP_SECRET")); 
  JSONObject jsonObject = httpRequest(requestUrl, "GET", null); 
  // If the request is successful  if (null != jsonObject) { 
    try { 
      accessToken = new WxAccessToken(); 
      (("access_token")); 
      (("expires_in")); 
    } catch (JSONException e) { 
      accessToken = null; 
      // Failed to get token      ("Gettokenfail errcode:{} errmsg:{}", 
          ("errcode"), 
          ("errmsg")); 
    } 
  } 
  return accessToken; 
} 
public static String jsapiTicket = "/cgi-bin/ticket/getticket?access_token=ACCESS_TOKEN&type=jsapi"; 
/**
  * Get JsTicket
  *
  * @param accessToken
  * accessToken
  * @return
  */ 
public static WxJsTicket getJsTicket(String accessToken) { 
  WxJsTicket jsTicket = null; 
  String url = ("ACCESS_TOKEN", accessToken); 
  JSONObject jsonObject = httpRequest(url, "GET", null); 
  // If the request is successful  if (null != jsonObject) { 
    try { 
      jsTicket = new WxJsTicket(); 
      (("ticket")); 
      (("expires_in")); 
    } catch (JSONException e) { 
      jsTicket = null; 
      // Failed to get token      ("GetjsapiTicketfail errcode:{} errmsg:{}", 
          ("errcode"), 
          ("errmsg")); 
    } 
  } 
  return jsTicket; 
} 

({ 
   debug: false, // Turn on debug mode, the return values ​​of all APIs called will be alerted on the client. To view the passed parameters, you can open them on the PC side. The parameter information will be printed through the log and will only be printed on the PC side.   appId: "$!{('appId')}", // Required, unique identification of the official account   timestamp: "$!{('timeStamp')}", // Required to generate a signature time stamp   nonceStr: "$!{('nonceStr')}", // Required to generate a random string of signatures   signature: "$!{('signature')}",// Required, signature, see Appendix 1   jsApiList: ['checkJsApi', 
         'chooseImage', 
         'previewImage', 
         'uploadImage'] // Required, a list of JS interfaces that need to be used, and the list of all JS interfaces is shown in Appendix 2 }); 
 
 var images = { 
  localId: [], 
  serverId: [] 
 }; 

({
  count: 1, // Default 9  sizeType: ['original', 'compressed'], // You can specify whether it is an original or a compressed image, and both are default  sourceType: ['album', 'camera'], // You can specify whether the source is an album or a camera, and both are default  success: function (res) {
    var localIds = ; // Return the local ID list of the selected photo. LocalId can display the picture as the src attribute of the img tag.  }
});

({
  localId: '', // The local ID of the image to be uploaded is obtained from the choiceImage interface  isShowProgressTips: 1, // Default is 1, display progress prompts  success: function (res) {
    var serverId = ; // Return the server ID of the picture  }
});

/**
  * Get media files
  *
  * @param accessToken
  * Interface access credentials
  * @param media_id
  * Media file id
  * */ 
public static String downloadMedia(String mediaId,HttpServletRequest request) { 
  String requestUrl = "/cgi-bin/media/get?access_token=ACCESS_TOKEN&media_id=MEDIA_ID"; 
  requestUrl = ("ACCESS_TOKEN", ()).replace( 
      "MEDIA_ID", mediaId); 
  HttpURLConnection conn = null; 
  try { 
    URL url = new URL(requestUrl); 
    conn = (HttpURLConnection) (); 
    (true); 
    ("GET"); 
    (30000); 
    (30000); 
    BufferedInputStream bis = new BufferedInputStream( 
        ()); 
    ByteArrayOutputStream swapStream = new ByteArrayOutputStream();  
    byte[] buff = new byte[100];  
    int rc = 0;  
    while ((rc = (buff, 0, 100)) > 0) {  
      (buff, 0, rc);  
    }  
    byte[] filebyte = ();  
    return ().getImageServerUrl() + ().store(filebyte); 
  } catch (Exception e) { 
    (); 
  } finally { 
    if(conn != null){ 
      (); 
    } 
  } 
  return ""; 
} 

$('#filePicker').on('click', function () {
 ({
  success: function (res) {
   var localIds = ;
   syncUpload(localIds);
  }
 });
});
var syncUpload = function(localIds){
 var localId = ();
 ({
  localId: localId,
  isShowProgressTips: 1,
  success: function (res) {
   var serverId = ; // Return the server ID of the picture   //Other codes for processing serverId   if( > 0){
    syncUpload(localIds);
   }
  }
 });
};