shanhuijava 2013-06-04
参考资料:http://blog.csdn.net/catxl313/article/details/5244243
全部代码如下,此为读取指纹仪:
<!Doctype html> <html> <head> <title></title> <meta http-equiv=Content-Type content="text/html;charset=utf-8"> <style type="text/css"> body{ text-align: center; font-size: 12px; margin: 0px; padding: 0px; } .clear{ margin: 0px 0px 0px 0px; padding: 0px 0px 0px 0px; } .cssCenter{ margin-top: 0px; margin-bottom: 0px; margin-left: auto; margin-right: auto; } </style> <script type="text/javascript"> var ComAxCtrl=null; function initss(){ document.getElementById("fingerAGM").value = ""; document.getElementById("info").value = ""; var flag = false; var flag1 = false; if(ComAxCtrl==null){ flag = true; } if(flag){ ComAxCtrl = document.getElementById("ComAxCtrl"); ComAxCtrl.attachEvent("OnCommRecv",OnCommRecv); flag1 = true; }else{ if(!ComAxCtrl.IsCommOpen()){ flag1 = true; } } if(flag1){ var result = ComAxCtrl.CommOpen(1,"9600,n,8,1"); if(result==0){ alert("无法找到指纹仪设备!"); return false; } } if(!ComAxCtrl.IsCommOpen()){ alert("指纹仪未打开!"); return false; } //发送命令 document.getElementById("info").value=""; var cR = ComAxCtrl.CommSend(stringToHex("TPLT")); } function OnCommRecv(data){ hexToString(data); } function stringToHex(str){ var val=""; for(var i = 0; i < str.length; i++){ if(val == "") val = "0X"+str.charCodeAt(i).toString(16); else val += ",0X" + str.charCodeAt(i).toString(16); } return val; } function hexToString(str){ var val=""; var arr = str.split(" "); for(var i = 0; i<arr.length;i++){ val += String.fromCharCode("0x"+arr[i]); } var info = document.getElementById("info").value+val; document.getElementById("info").value = info; if(info.length==280){ //接收完数据 } } </script> </head> <body> <object id="ComAxCtrl" classid="clsid:1D82E7E4-CDEE-4894-92C2-A3E605D4F84E" codebase="<%=basePath %>ocx/ComAxCtrl.ocx" style="width:1px; height:1px;"></object> <input type="hidden" id="fingerAGM" value="" /> <button onclick="initss()">读取指纹</button> <textarea rows="20" cols="50" id="info"></textarea> </body> </html>
ComAxCtrl.CommOpen(1,"9600,n,8,1"),1表示com口编号。
ComAxCtrl.CommSend();发送命令