共享一段CMPP编程时候，移动网关返回CMPP_SUBMIT_RESP消息中，解析Msg_Id字段的代码

最近刚完成CMPP3.0发送手机短信的开发工作，感觉不错。

发送短信方法：是向移动网关发送CMPP_SUBMIT消息，如果CMPP_SUBMIT消息中标识要移动网关发送确认是否成功的CMPP_SUBMIT_RESP消息。CMPP_SUBMIT_RESP结构（CMPP3.0的）：

下面给出自己写的解析Msg_Id的简单代码：

public class ToByteTest {
    public static void main(String[] args){
        long temp = -4025053409177436045L;
        byte[] bt = new byte[8];
        for(int i=0;i<8;i++){
            bt[i] = (byte) (temp >> (56 - i * 8));
        }
        
        int mask = 0xf0;
        int month =  (bt[0] & mask)>>4;
        System.out.println("Month:"+month);
        
        mask=0xF;
        int date =  (bt[0] & mask)<<1;
        mask=0x80;
        int date2 = bt[1]>>7;
        date = (date&(date2|0x1E));
        System.out.println("Date:"+date);
        
        //01111100
        mask=0x7C;
        int hour = (bt[1]&mask)>>2;
        System.out.println("Hour:"+hour);
        
        mask=0x3;
        int minute = (bt[1]&mask)<<4;
        minute |= (bt[2]&0xF0)>>4;
        System.out.println("Minute:"+minute);
        
        mask=0xf;
        int second = (bt[2]&mask)<<2;
        second |= (bt[3]&0xff)>>6;
        System.out.println("Second:"+second);
        
        mask = 0x3F;
        int Msg_Id = (bt[3]&mask)<<16;
        Msg_Id |= (bt[4]&0xFF)<<8;
        Msg_Id |= (bt[5]&0xFF);
        System.out.println("Msg_Id:"+Msg_Id);
        
        mask = 0xFF;
        int seq_id = (bt[6]&mask)<<8;
        seq_id |= (bt[7]&mask);
        System.out.println("seq_id:"+seq_id);
    }
}

执行结果如下：

Month:12（月份）
Date:16（日期）
Hour:9（小时）
Minute:2（分钟）
Second:13（秒）
Msg_Id:1（短信网关代码）
seq_id:115（序列号）