809协议服务端程序解码程序
- 目录
- 概述
- 需求:
 
- 设计思路
- 实现思路分析
- 1.服务端
- 2.code:
 
- 拓展实现
- 性能参数测试:
- 1.功能测试
 
 
- 参考资料和推荐阅读
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目录

概述
809协议服务端程序
需求:
设计思路
实现思路分析
1.服务端
809协议服务端程序解码程序:
2.code:
package cn.com.onlinetool.jt809.convert;
import java.math.BigInteger;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
public class StringToHex{
    public String convertStringToHex(String str){
        char[] chars = str.toCharArray();
        StringBuffer hex = new StringBuffer();
        for(int i = 0; i < chars.length; i++){
            hex.append(Integer.toHexString((int)chars[i]));
        }
        return hex.toString();
    }
    public String convertHexToString(String hex){
        StringBuilder sb = new StringBuilder();
        StringBuilder temp = new StringBuilder();
        //49204c6f7665204a617661 split into two characters 49, 20, 4c...
        for( int i=0; i<hex.length()-1; i+=2 ){
            //grab the hex in pairs
            String output = hex.substring(i, (i + 2));
            //convert hex to decimal
            int decimal = Integer.parseInt(output, 16);
            //convert the decimal to character
            sb.append((char)decimal);
            temp.append(decimal);
        }
        return sb.toString();
    }
    //504F533838383834  POS88884
    public static void main(String[] args) {
        StringToHex strToHex = new StringToHex();
//        System.out.println("\n-----ASCII码转换为16进制 -----");
//        String str = "POS88884";
//        System.out.println("字符串: " + str);
//        String hex = strToHex.convertStringToHex(str);
//        System.out.println("转换为16进制 : " + hex);
//        String hex="3132333435363738393031000000000000000000";
//        String hex="3132333435364071712E636F6D";
        String hex="63E5A282B2E2413838383838";
        System.out.println("\n***** 16进制转换为ASCII *****");
        System.out.println("Hex : " + hex);
        System.out.println("ASCII : " + strToHex.convertHexToString(hex));
    }
    public static void main2(String[] args) {
        String s = "000000005BAC4D50";
        long longVaue = new BigInteger(s, 16).longValue();
        Calendar c=Calendar.getInstance();
        c.setTimeInMillis(longVaue);
        DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
        System.out.println(dateFormat.format(c.getTime()));
    }
}
拓展实现
这里参考:github:简单实现上述流程:
 入门级实现:
 : 部分源码实现.
 : 源码实现
性能参数测试:
1.功能测试
参考资料和推荐阅读
- 暂无
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