发送消费记录给单片机

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抽取方法

抽取这个方法可以处理所有指令AT + （指令名）+（状态）+（名称描述）+ （CS）+ (YZ)

private byte[]  EnCodeData(String cmd,String Data){
    byte [] buffer;
    try {

    byte []  bdata = Data.getBytes("gbk");
    byte [] bcmd =cmd.getBytes();
    int size =bcmd.length+bdata.length+6;
     buffer =new byte [size];
    int i=0;
    int sum=0;
    buffer[i]='A';
    buffer[++i]='T';
    for(int m=0;m<bcmd.length;m++){
        buffer[++i]=bcmd[m];
    }
    for(byte b :bdata){
        buffer[++i]=b;
    }
    for(int m=2;m<=i;m++){
        sum =sum +(buffer[m]&0xFF);
    }
    byte[] Cs =getCS(sum);
    buffer[++i]=Cs[0];
    buffer[++i]=Cs[1];
    buffer[++i]='Y';
    buffer[++i]='Z';
        return buffer;

    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    }
    return new byte[0];
}

比如要发送第二条指令

void second(String name,double balance) {
    String nameAndBalance = "h1"+name+"+"+balance;
    
    addLastAnsTask(new picTask(EnCodeData("h","1"+nameAndBalance)));
}