pdf.js 跨域訪問遠程服務器地址

最近項目要求在線顯示pdf,一頓搜索以後感受pdf.js還不錯，可是一直存在一個問題：跨域訪問，pdf.js不能直接跨域，最後用後臺服務將url的pdf轉成byte[],而後用pdf.js解析data,這樣就成功解決跨域問題了，

解析url

InputStream inputStream = null;
        try {
            String strUrl = url.trim();
            URL url = new URL(strUrl);
            URLConnection connection = url.openConnection();
            HttpURLConnection httpURLConnection = (HttpURLConnection) connection;
            httpURLConnection.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");
            inputStream = httpURLConnection.getInputStream();
            BufferedInputStream    bin = new BufferedInputStream(inputStream);
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            BufferedOutputStream     bout = new BufferedOutputStream(baos);
            byte[] buffer = new byte[1024];
            int len = bin.read(buffer);
            while (len != -1) {
                bout.write(buffer, 0, len);
                len = bin.read(buffer);
            }
           
            bout.flush();
            byte[] bytes = baos.toByteArray();
             return bytes
        } catch (IOException e) {
        }
複製代碼

pdf.js 加載data

loadingTask = pdfjsLib.getDocument({data:data});//pdf.js的function用來代替url 
複製代碼