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         ÔÚÎҵijÌÐòÖÐÓÐÕâôһ¸öÄ£¿é£¬Í¨¹ý¸ø¶¨µÄurlÏÂÔØµ½Îļþ£¬±£´æµ½±¾µØ¡£¶øÎļþÊÇbinaryÐÎʽµÄ¡£ÀýÈ磺http://abc/li.exe,
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public static  File saveToFiles(String destUrl,String path) throws IOException {
            final int BUFFER_SIZE = 4096;
            System.out.println("file download url is "+destUrl+" path is"+path+"--------------");
            FileOutputStream fos = null;
            BufferedInputStream bis = null;
            HttpURLConnection httpconn = null;
            URL url = null;
            byte[] buf = new byte[BUFFER_SIZE];
            int size = 0;
            if(rc.isUseProxy()){   // ´Ë´¦Îª¶ÁÈ¡ÅäÖÃÎļþµÄÄÚÈÝ£¬È·¶¨ÊÇ·ñʹÓôúÀí
                Properties   prop   =   System.getProperties(); 
                   //set http  proxy addr
                 prop.setProperty("http.proxyHost",   rc.getHttpProxyHost());  &nbs


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