JavaScript读写NFC Ntag标签源码
发布时间：2023年12月21日
https://item.taobao.com/item.htm?spm=a1z10.5-c-s.w4002-21818769070.35.74185b43tGWQH5&id=562957272162
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>NFC_Ntag卡读写DEMO</title>
<script language="javascript">
var EXTERNKEY = 0x10; //需要认证卡片密钥
var iswsrun = false;
var ws;
var received_msg = "";
var mytimer;
var strls = "";
var errorno = "";
var wsUri = "ws://127.0.0.1:39189"; //端口号必须与RFIDWebServer端口一致
function isUIntNum(val) {
var testval = /^\d+$/; // 非负整数
return (testval.test(val));
}
function isHex(val) {
var testval = /^(\d|[A-F]|[a-f])+$/; // 十六进制数判断
return (testval.test(val));
}
function beep() { //驱动发卡器响声令
textarea.value = "";
WebSocketRun("pcdbeep,30");
}
function getdevicenumber() { //读取发卡器唯一出厂序号，可以当加密狗使用
textarea.value = "";
serialnumber.value="";
WebSocketRun("pcdgetdevicenumber");
}
function piccrequest_ul() {
var RequestCardComm = "piccrequest_ul,";
WebSocketRun(RequestCardComm);
}
function piccinit_ntag() {
textarea.value = "";
myctrlword = 0; //指定控制字，无需密码为0，当需要密码时为EXTERNKEY;
mypiccserial = "00000000000000"; //指定序列号，00000000000000 表示任意 NTAG卡。
if (checkauth.checked) { //指定密码，NTAG21x卡密码为4个字节，卡出厂时密码功能不启用，这样无需密码也能读写卡
myctrlword = EXTERNKEY; //指定控制字，无需密码为0，当需要密码时为EXTERNKEY;
mypicckey = authkey0.value.trim();
if (!isHex(mypicckey) || mypicckey.length!=8) {
alert( "卡片认证密钥输入错误，请输入8位16进制密钥！");
authkey0.focus();
authkey0.select();
return;
}
}
else {
mypicckey = "00000000";
}
//数据准备
if (selonoff.selectedIndex == 0) { //开启密码保护功能，写保护功能生效，但读保护需要下面的数据设定
newkeystr = newkey.value.trim(); //取新密码
if (!isHex(newkeystr) || newkeystr.length != 8) {
alert( "新密钥输入错误，请输入8位16进制新密钥！");
newkey.focus();
newkey.select();
return;
}
strls1 = protectpageno.value.trim();//起始保护页号
if (!isUIntNum(strls1)) {
alert("起始保护页号输入错误!");
protectpageno.focus();
protectpageno.select();
return;
}
strls1 = "0" + parseInt(strls1).toString(16);
beginpage = strls1.substring(strls1.length - 2);
//计数器
strls1 = keyerrortimes.value.trim();//允许密码错误次数
if (!isUIntNum(strls1)) {
alert("允许密码错误次数输入错误!");
protectpageno.focus();
protectpageno.select();
return;
}
i = parseInt(strls1);
i = i % 8;
if (checkreadon.checked) {
i = i + 128;
}
strls1 = "0" + i.toString(16);
authfail = strls1.substring(strls1.length - 2);
packstr = packcode.value.trim(); //取PACK码
if (!isHex(packstr) || packstr.length != 4) {
alert( "PACK密钥确认码输入错误，请输入4位16进制PACK密钥确认码！");
packcode.focus();
packcode.select();
return;
}
mypiccdata = "000000";
mypiccdata = mypiccdata +beginpage;
mypiccdata = mypiccdata + authfail;
mypiccdata = mypiccdata + "000000";
mypiccdata = mypiccdata + newkeystr; //4字节新密码
mypiccdata = mypiccdata + packstr; //2字节PACK确认码
mypiccdata = mypiccdata + "0000";
myctrlword = myctrlword + 0x01; //更新控制字
myctrlword = myctrlword + 0x02; //更新控制字
myctrlword = myctrlword + 0x04; //更新控制字
}
else {
mypiccdata = "000000FF"; //MIRROR,RFUI,MIRROR_PAGE,AUTH0
myctrlword = myctrlword + 0x01; //更新控制字
mypiccdata = mypiccdata + "000000000000000000000000";
myctrlword = myctrlword + 0x02; //更新控制字
}
var WriteNtagComm = "piccinit_ntag," + myctrlword + "," + mypiccserial + "," + mypicckey + "," + mypiccdata;
WebSocketRun(WriteNtagComm);
}
function readcard_ntag() {
textarea.value = "";
carduid.value="";
RWdata.value="";
mypiccserial = "00000000000000"; //指定序列号，未知卡序列号时可指定为14个0,因为NTAG21x卡是7个字节的卡序列号
if (checkauth.checked) { //指定密码，NTAG21x卡密码为4个字节，卡出厂时密码功能不启用，这样无需密码也能读写卡
myctrlword = EXTERNKEY; //指定控制字，无需密码为0，当需要密码时为EXTERNKEY;
mypicckey = authkey0.value.trim();
if (!isHex(mypicckey) || mypicckey.length!=8) {
alert( "卡片认证密钥输入错误，请输入8位16进制密钥！");
authkey0.focus();
authkey0.select();
return;
}
}
else {
mypicckey = "00000000";
myctrlword = 0; //指定控制字，无需密码为0，当需要密码时为EXTERNKEY;
}
myblockaddr = ntagstartno.value.trim(); //读写起始页
if (!isUIntNum(myblockaddr)) {
alert( "读写起始页输入错误!");
ntagstartno.focus();
ntagstartno.select();
return;
}
myblocksize = ntagpagenumber.value.trim(); //读写页数
if (!isUIntNum(myblocksize)) {
alert( "读写页数输入错误!");
ntagpagenumber.focus();
ntagpagenumber.select();
return;
}
var ReadNtagComm = "piccreadex_ntag," + myctrlword + "," + mypiccserial + "," + mypicckey + "," + myblockaddr + "," + myblocksize;
WebSocketRun(ReadNtagComm);
}
function writecard_ntag() {
textarea.value = "";
carduid.value="";
mypiccserial = "00000000000000"; //指定序列号，未知卡序列号时可指定为14个0,因为NTAG21x卡是7个字节的卡序列号
if (checkauth.checked) { //指定密码，NTAG21x卡密码为4个字节，卡出厂时密码功能不启用，这样无需密码也能读写卡
myctrlword = EXTERNKEY; //指定控制字，无需密码为0，当需要密码时为EXTERNKEY;
mypicckey = authkey0.value.trim();
if (!isHex(mypicckey) || mypicckey.length!=8) {
alert( "卡片认证密钥输入错误，请输入8位16进制密钥！");
authkey0.focus();
authkey0.select();
return;
}
}
else {
mypicckey = "00000000";
myctrlword = 0; //指定控制字，无需密码为0，当需要密码时为EXTERNKEY;
}
myblockaddr = ntagstartno.value.trim(); //读写起始页
if (!isUIntNum(myblockaddr)) {
alert( "读写起始页输入错误!");
ntagstartno.focus();
ntagstartno.select();
return;
}
myblocksize = ntagpagenumber.value.trim(); //读写页数
if (!isUIntNum(myblocksize)) {
alert( "读写页数输入错误!");
ntagpagenumber.focus();
ntagpagenumber.select();
return;
}
//数据
strls = RWdata.value.trim();
if (!isHex(strls) || strls.length<myblocksize*8) {
alert( "读写数据输入错误，请输入"+(myblocksize*8).toString()+"位16进制写卡数据!");
RWdata.focus();
RWdata.select();
return;
}
var WriteNtagComm = "piccwriteex_ntag," + myctrlword + "," + mypiccserial + "," + mypicckey + "," + myblockaddr + "," + myblocksize + "," + strls;
WebSocketRun(WriteNtagComm);
}
function DispErrInfo(errcode){
var errstr = "";
switch (errcode) {
case "ReturnCode:008":
case "ReturnCode:009":
case "ReturnCode:010":
errstr = "，未寻到卡，请将卡放到发卡器的感应区！";
break;
case "ReturnCode:011":
case "ReturnCode:012":
errstr = "，卡密码认证失败！";
break;
case "ReturnCode:013":
errstr = "，读卡失败，可能需要验证密码！";
break;
case "ReturnCode:014":
errstr = "，写卡失败，可能需要验证密码！";
break;
case "ReturnCode:021":
errstr = "，没有动态库！";
break;
case "ReturnCode:022":
errstr = "，动态库或驱动程序异常！";
break;
case "ReturnCode:023":
errstr = "，驱动程序错误或发卡器未连接！";
break;
case "ReturnCode:024":
errstr = "，操作超时，一般是动态库没有反映！";
break;
case "ReturnCode:025":
errstr = "，发送字数不够！";
break;
case "ReturnCode:026":
errstr = "，发送的CRC错！";
break;
case "ReturnCode:027":
errstr = "，接收的字数不够！";
break;
case "ReturnCode:028":
errstr = "，接收的CRC错！";
break;
case "ReturnCode:029":
errstr = "，函数输入参数格式错误！";
break;
case "ReturnCode:444":
errstr = "，RFIDWebServer系统文件错误！";
break;
default:
errstr = "，未知的错误！";
}
return errstr;
}
window.onerror = function (e) {
alert("不好意思，出错了!");
return true;//屏蔽系统事件
}
function timeoutevent() {
ws.close();
textarea.value = "websockket返回超时";
}
//websockket数据处理
function WebSocketRev(evt) {
clearTimeout(mytimer);
received_msg = evt.data;
ws.close();
//在这里解析返回数据
var strlist = received_msg.split(",");
if (strlist.length > 1) {
var dispstr = "";
switch (strlist[0]) {
case "pcdbeep":
dispstr = "函数名称:" + strlist[0] + "\r\n";
if (strlist[1] == "ReturnCode:000") {
dispstr = dispstr + "操作结果:" + strlist[1];
dispstr = dispstr + "，已执行蜂鸣响声操作！\r\n"
} else {
dispstr = dispstr + "操作结果:" + strlist[1];
dispstr = dispstr + DispErrInfo(strlist[1]);
}
textarea.value = dispstr;
break;
case "pcdgetdevicenumber":
dispstr = "函数名称:" + strlist[0] + "\r\n";
if (strlist[1] == "ReturnCode:000") {
dispstr = dispstr + "操作结果:" + strlist[1];
dispstr = dispstr + "，已读取设备编号！\r\n"
serialnumber.value = strlist[2] ;
} else {
dispstr = dispstr + "操作结果:" + strlist[1];
dispstr = dispstr + DispErrInfo(strlist[1]);
}
textarea.value = dispstr;
break;
case "piccrequest_ul":
dispstr = "函数名称:" + strlist[0] + "\r\n";
if (strlist[1] == "ReturnCode:000") {
dispstr = dispstr + "操作结果:" + strlist[1];
dispstr = dispstr + "，已读取NFC Ntag卡UID号！\r\n";
carduid.value=strlist[2];
} else {
dispstr = dispstr + "操作结果:" + strlist[1];
dispstr = dispstr + DispErrInfo(strlist[1]);
}
textarea.value = dispstr;
break;
case "piccinit_ntag":
dispstr = "函数名称:" + strlist[0] + "\r\n";
if (strlist[1] == "ReturnCode:000") {
dispstr = dispstr + "操作结果:" + strlist[1];
dispstr = dispstr + "，设置Ntag卡密钥机制成功！\r\n"
} else {
dispstr = dispstr + "操作结果:" + strlist[1];
dispstr = dispstr + DispErrInfo(strlist[1]);
}
if (strlist.length > 2) {
carduid.value=strlist[2];
}
textarea.value = dispstr;
break;
case "piccreadex_ntag":
dispstr = "函数名称:" + strlist[0] + "\r\n";
if (strlist[1] == "ReturnCode:000") {
dispstr = dispstr + "操作结果:" + strlist[1];
dispstr = dispstr + "，已读取卡内数据！\r\n"
} else {
dispstr = dispstr + "操作结果:" + strlist[1];
dispstr = dispstr + DispErrInfo(strlist[1]);
}
if (strlist.length > 2) {
carduid.value=strlist[2];
}
if (strlist.length > 3) {
RWdata.value= strlist[3];
}
textarea.value = dispstr;
break;
case "piccwriteex_ntag":
dispstr = "函数名称:" + strlist[0] + "\r\n";
if (strlist[1] == "ReturnCode:000") {
dispstr = dispstr + "操作结果:" + strlist[1];
dispstr = dispstr + "，写卡成功！\r\n"
} else {
dispstr = dispstr + "操作结果:" + strlist[1];
dispstr = dispstr + DispErrInfo(strlist[1]);
}
if (strlist.length > 2) {
carduid.value=strlist[2];
}
textarea.value = dispstr;
break;
}
}
}
function WebSocketRun(sendinfo) {
iswsrun = false;
try {
if ("WebSocket" in window) {
ws = new WebSocket(wsUri);
}
else if ("MozWebSocket" in window) {
ws = new MozWebSocket(wsUri);
}
else {
received_msg = "您的浏览器不支持WebSocket，请选用支持WebSocket的浏览器！";
return;
}
clearTimeout(mytimer);
ws.onopen = function (evt) {
ws.send(sendinfo);
iswsrun = true;
mytimer = setTimeout("timeoutevent()", 2000);
};
ws.onmessage = WebSocketRev;
ws.onerror = function (e) {
if (iswsrun != true) {
received_msg = "请先在当前电脑下载>安装>运行我们的服务程序......";
window.open("http://www.icmcu.com/ICID15693-02V2test/RFIDWebServerSetup.exe", "top");//打开新窗口
alert("请先下载>安装>运行我们的服务程序，再刷新本页面......");
}
};
}
catch (ex) {
if (iswsrun != true) {
received_msg = "请先在当前电脑下载>安装>运行我们的服务程序......";
window.open("http://www.icmcu.com/ICID15693-02V2test/RFIDWebServerSetup.exe", "top");//打开新窗口
alert("请先下载>安装>运行我们的服务程序，再刷新本页面......");
}
}
}
</script>
</head>
<body>
<table width="866" height="487" border="1" align="center">
<tr>
<th width="124" height="45" scope="row"><input name="butt_beep" type="submit" id="butt_beep" onclick="beep()" value="驱动发卡器响声" /></th>
<td width="716"><input name="butt_getdevnum" type="submit" id="butt_getdevnum" onclick="getdevicenumber()" value="读取发卡器唯一出厂序列号" />
设备编号：
<input name="serialnumber" type="text" id="serialnumber" size="8" maxlength="8" /></td>
</tr>
<tr>
<th height="45" scope="row"><input name="butt_piccrequest_ul" type="submit" id="butt_piccrequest_ul" onclick="piccrequest_ul()" value="寻Ntag卡获取UID" /></th>
<td>原始16进制卡号：
<input name="carduid" type="text" id="carduid" size="14" maxlength="14" /></td>
</tr>
<tr>
<th height="45" scope="row"> </th>
<td><p>
<input type="checkbox" name="checkauth" id="checkauth" />
选择先认证卡片密钥再继续以下的操作，16进制卡片认证密钥：
<label for="authkey0"></label>
<input name="authkey0" type="text" id="authkey0" value="12345678" size="8" maxlength="8" />
</p></td>
</tr>
<tr>
<th height="139" scope="row"><p>
<input name="butt_piccinit_ntag" type="submit" id="butt_piccinit_ntag" onclick="piccinit_ntag()" value="设置卡片密钥机制" />
</p></th>
<td><p>
<label for="rwtext"></label>
<select name="selonoff" id="selonoff">
<option>开启卡片密钥保护功能</option>
<option selected="selected">取消卡片密钥保护功能</option>
</select>
，从：
<input name="protectpageno" type="text" id="protectpageno" value="20" size="4" maxlength="4" onkeyup="this.value=this.value.replace(/\D/g,'')"/>
页开始有密钥保护功能，
<input type="checkbox" name="checkreadon" id="checkreadon" />
选择开启读操作密钥保护。</p>
<p>新密钥：
<input name="newkey" type="text" id="newkey" value="12345678" size="8" maxlength="8" />
，允许密钥认证失败次数：
<input name="keyerrortimes" type="text" id="keyerrortimes" value="0" size="2" maxlength="2" onkeyup="this.value=this.value.replace(/\D/g,'')"/>
，PACK密钥确认码：
<input name="packcode" type="text" id="packcode" value="1234" size="4" maxlength="4" />
</p>
<p>警告：当密钥认证失败次数取值0表示不限制次数，大于设置值时卡片将会报废！</p></td>
</tr>
<tr>
<th height="100" scope="row"><p>
<input name="butt_readcard_ntag" type="submit" id="butt_readcard_ntag" onclick="readcard_ntag()" value="轻松读Ntag卡" />
</p>
<p> </p>
<p>
<input name="butt_writecard_ntag" type="submit" id="butt_writecard_ntag" onclick="writecard_ntag()" value="轻松写Ntag卡" />
</p></th>
<td><p>读写起始页：
<input name="ntagstartno" type="text" id="ntagstartno" value="4" size="4" maxlength="4" onkeyup="this.value=this.value.replace(/\D/g,'')"/>
，读写页数：
<input name="ntagpagenumber" type="text" id="ntagpagenumber" value="10" size="2" maxlength="2" onkeyup="this.value=this.value.replace(/\D/g,'')"/>
，每次最多读12页、写11页。</p>
<p>
<textarea name="RWdata" id="RWdata" cols="100" rows="3" ></textarea>
</p></td>
</tr>
<tr>
<th height="78" scope="row"><p>操作提示</p></th>
<td><textarea name="textarea" id="textarea" cols="100" rows="5" ></textarea></td>
</tr>
</table>
</body>
</html>
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文章来源:https://blog.csdn.net/zhangjin7422/article/details/135124695
本文来自互联网用户投稿，该文观点仅代表作者本人，不代表本站立场。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。 如若内容造成侵权/违法违规/事实不符，请联系我的编程经验分享网邮箱：chenni525@qq.com进行投诉反馈，一经查实，立即删除！
本文来自互联网用户投稿，该文观点仅代表作者本人，不代表本站立场。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。 如若内容造成侵权/违法违规/事实不符，请联系我的编程经验分享网邮箱：chenni525@qq.com进行投诉反馈，一经查实，立即删除！
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