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本示例使用设备：WIFI/TCP/UDP/HTTP协议RFID液显网络读卡器可二次开发语音播报POE-淘宝网 (taobao.com)
C#解析JSON数据
string dispstr = "{" + getChinesecode("扫码") + ":}" + data; //显示信息,注意中文汉字一定要转换为设备能显示的编码，其它字母数字符号不需要转换，{}内的信息反白显示
string ChineseVoice = getChinesecode("扫码") + data;string jsonText = "{\"Response\":\"json\",\"infotype\":\"1\""; //固定前缀，我们的设备以此来检索返回信息,表示 驱动设备显示和响声
jsonText = jsonText + ",\"info\":\"" + info + "\""; //提交的信息序号，一定要对应
jsonText = jsonText + ",\"disp\":\"" + dispstr + "\\n\\n\""; //显示文字,注意中文汉字一定要转换为设备能显示的编码，其它字母数字符号不需要转换，{}内的信息反白显示
jsonText = jsonText + ",\"dispdelay\":\"20\""; //显示时长20秒
jsonText = jsonText + ",\"beeptype\":\"1\""; //蜂鸣器发声种类，取值范围0-12
jsonText = jsonText + ",\"voicetype\":\"" + ChineseVoice + "\""; //播报的TTS语音
jsonText = jsonText + ",\"k1delay\":\"20\""; //第1继电器开启延时单位，每1个单位延时25mm,20*25表示500mm,取值为0表示关闭继电器
jsonText = jsonText + ",\"k2delay\":\"20\"}"; //第2继电器开启延时单位，以，分隔，总计可以控制8个继电器string disp=getjsonval(jsonText,"disp");public static string getjsonval(string totalstr, string namestr) //JSON解析
{string valustr = "";totalstr = totalstr.Replace("{", "");totalstr = totalstr.Replace("}", "");totalstr=totalstr.Replace ("\"","");string[] dataArray = totalstr.Split(new char[2] { ',', ',' });if (dataArray.GetUpperBound(0) > 0){for (int i = 0; i < dataArray.Length; i++){string[] dataArray2 = dataArray[i].Split(new char[2] { ':', ':' });if (dataArray2[0] == namestr){valustr = dataArray2[1];break;} }}return valustr;
}VBScript解析JSON
poststrlen = Request.TotalBytes '获取字节数
If poststrlen > 0 Thenpoststr = bin2str(Request.BinaryRead(poststrlen))info = getpostval(poststr, "info") '信息序号jihao = getpostval(poststr, "jihao") '设备机号(可自编)cardtype = getpostval(poststr, "cardtype") '卡类型有IC、ID、ISO15693等heartbeattype = getpostval(poststr, "heartbeattype") '心跳信息类型scantype = getpostval(poststr, "scantype") '扫描枪信息类型card = getpostval(poststr, "card") '卡序列号data = getpostval(poststr, "data") '扇区内容dn = getpostval(poststr, "dn") '设备硬件序列号，出厂时已固化，全球唯一Status = getpostval(poststr, "status") '状态，如密码认证失败为12
End ifFunction bin2str(bindata)Dim rsStream, strlsSet rsStream = Server.CreateObject("ADODB.Stream")rsStream.Type = 2rsStream.OpenrsStream.WriteText bindatarsStream.Position = 0rsStream.Charset = "utf-8" '或GBKrsStream.Position = 2strls = rsStream.ReadTextrsStream.CloseSet rsStream = Nothingbin2str = strls
End FunctionFunction getjsonval(totalstr, namestr)Dim p1, p2, k, n, strlsn = Len(totalstr)If n < 5 Thengetjsonval = ""Exit FunctionEnd IfIf (Left(totalstr, 1) <> "{") Or (Right(totalstr, 1) <> "}") Thengetjsonval = ""Exit FunctionEnd Ifstrls = "," + Mid(totalstr, 2, n - 2) + ","k = Len(namestr) + 4p1 = InStr(strls, ",""" + namestr + """:")If p1 < 1 Thengetjsonval = ""Exit FunctionEnd Ifp2 = InStr(p1 + k, strls, ",")If p2 > (p1 + k) Thengetjsonval = Mid(strls, p1 + k, p2 - (p1 + k))If (Left(getjsonval, 1) <> """") Or (Right(getjsonval, 1) <> """") Thengetjsonval = ""Exit FunctionEnd Ifn = Len(getjsonval)If n < 3 Thengetjsonval = ""Exit FunctionEnd Ifgetjsonval = Mid(getjsonval, 2, n - 2)Elsegetjsonval = ""End If
End FunctionJavaScript解析JSON
function bintostr(bindata) {var rsStream = new ActiveXObject("ADODB.Stream");rsStream.Type = 2;rsStream.Open();rsStream.WriteText(bindata);rsStream.Position = 0;rsStream.Charset = "utf-8"; //或GBKrsStream.Position = 2;strls = rsStream.ReadText;rsStream.Close();rsStream = null;return strls;
}var poststrlen = Request.TotalBytes;
if (poststrlen > 0) { //获取JSON方式提交的数据jsonstr = bintostr(Request.BinaryRead(poststrlen)); //解析JSON参数var jsontext = eval("(" + jsonstr + ")");var info = jsontext.info; //信息序号，回应时要带入此序号var jihao = jsontext.jihao; //设备机号(可自编)var cardtype = jsontext.cardtype; //卡类型 及 卡状态var heartbeattype = jsontext.heartbeattype; //心跳信息类型var scantype = jsontext.scantype; //扫码标识var card = jsontext.card; //16进制的卡序号var data = jsontext.data; //扇区内容 或 扫码数据var input = jsontext.input; //输入标识var output = jsontext.output; //输出标识var rand = jsontext.rand; //设备随机数var dn = jsontext.dn; //设备硬件序列号，出厂时已固化，全球唯一var status = jsontext.status; //读卡状态，如密码认证失败为12
}