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public String  Httpcertify(){
      String  urlStr  =  "http://localhost:8080/examples/Certify.jsp";
                urlStr  =  urlStr + "?userid=" +  txtUserId.getText() + "&";
                urlStr  =  urlStr + "passwd=" +  txtPassWd.getText() + "&";
                urlStr  =  urlStr + "macaddress=" +  MacAddress;

      try{
        URL  url  =  new  URL(urlStr); 
        HttpURLConnection  hurlc  =(HttpURLConnection)url.openConnection(); 
        hurlc.setFollowRedirects(true); 
        hurlc.setInstanceFollowRedirects(true); 
        hurlc.setUseCaches(true); 
        hurlc.connect(); 
       
        InputStream  is=hurlc.getI


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