byte2String、string2Byte

package cn.com.codingce;

import java.io.UnsupportedEncodingException;
import java.util.Arrays;

public class ByteToString {
    
    public static void main(String[] args) {
    
        System.out.println(Arrays.toString(ByteToString.byte2String("f0401c4db9ec49b6b3bd557eea8c8a73b860ed6062cb2472e2f66135e0a727d6")));
        System.out.println(ByteToString.string2Byte(new byte[]{
    102, 48, 52, 48, 49, 99, 52, 100, 98, 57, 101, 99, 52, 57, 98, 54, 98, 51, 98, 100, 53, 53, 55, 101, 101, 97, 56, 99, 56, 97, 55, 51, 98, 56, 54, 48, 101, 100, 54, 48, 54, 50, 99, 98, 50, 52, 55, 50, 101, 50, 102, 54, 54, 49, 51, 53, 101, 48, 97, 55, 50, 55, 100, 54}));
        byte[] bytes = ByteToString.byte2String("f0401c4db9ec49b6b3bd557eea8c8a73b860ed6062cb2472e2f66135e0a727d6");
        StringBuffer stringBuffer = new StringBuffer();
        for (int i : bytes) {
    
            stringBuffer.append("(byte)0x");
            stringBuffer.append(turn16(i));
            stringBuffer.append(", ");
        }
        System.out.println(stringBuffer);

    }

    public static byte[] byte2String(String AppSign) {
    

        byte[] bytes = new byte[AppSign.length()];
        try {
    
            bytes = AppSign.getBytes("utf-8");
            return bytes;
        } catch (UnsupportedEncodingException e) {
    
            e.printStackTrace();
        }
        return new byte[]{
    };
    }

    public static String string2Byte(byte[] bytes) {
    
        try {
    
            return new String(bytes, "utf-8");
        } catch (UnsupportedEncodingException e) {
    
            e.printStackTrace();
        }
        return "";
    }

    public static String turn16(int num){
    
        String shortTimeNum = "";
        int remainder = 0;
        String tempStr = "";
        /** *  Analog short division  */
        while(num >= 1){
    
            remainder = num % 16;
            tempStr = getOtherNum(remainder);

            num = num / 16;
            shortTimeNum = tempStr + shortTimeNum;
        }

        return shortTimeNum;
    }

    /** * 16 Special processing in base conversion , Need to put more than 9 To convert numbers into letters  * @param tempNum * @return */
    public static String getOtherNum(int tempNum){
    
        String tempStr = "";
        if(tempNum > 9){
    
            switch(tempNum){
    
                case 10:
                    tempStr = "A";
                    break ;
                case 11:
                    tempStr = "B";
                    break;
                case 12:
                    tempStr = "C";
                    break;
                case 13:
                    tempStr = "D";
                    break;
                case 14:
                    tempStr = "E";
                    break;
                case 15:
                    tempStr = "F";
                    break;
            }
        }else{
    
            tempStr = String.valueOf(tempNum);
        }
        return tempStr;
    }
}

Output

/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/bin/java -javaagent:/Applications/IntelliJ IDEA.app/Contents/lib/idea_rt.jar=51239:/Applications/IntelliJ IDEA.app/Contents/bin -Dfile.encoding=UTF-8 -classpath /Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/charsets.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/deploy.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/ext/cldrdata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/ext/dnsns.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/ext/jaccess.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/ext/jfxrt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/ext/localedata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/ext/nashorn.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/ext/sunec.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/ext/sunjce_provider.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/ext/sunpkcs11.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/ext/zipfs.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/javaws.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/jce.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/jfr.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/jfxswt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/jsse.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/management-agent.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/plugin.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/resources.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/jre/lib/rt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/lib/ant-javafx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/lib/dt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/lib/javafx-mx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/lib/jconsole.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/lib/packager.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/lib/sa-jdi.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home/lib/tools.jar:/Volumes/Victory/mxz-code/other/test/out/production/test cn.com.codingce.ByteToString
[102, 48, 52, 48, 49, 99, 52, 100, 98, 57, 101, 99, 52, 57, 98, 54, 98, 51, 98, 100, 53, 53, 55, 101, 101, 97, 56, 99, 56, 97, 55, 51, 98, 56, 54, 48, 101, 100, 54, 48, 54, 50, 99, 98, 50, 52, 55, 50, 101, 50, 102, 54, 54, 49, 51, 53, 101, 48, 97, 55, 50, 55, 100, 54]
f0401c4db9ec49b6b3bd557eea8c8a73b860ed6062cb2472e2f66135e0a727d6
(byte)0x66, (byte)0x30, (byte)0x34, (byte)0x30, (byte)0x31, (byte)0x63, (byte)0x34, (byte)0x64, (byte)0x62, (byte)0x39, (byte)0x65, (byte)0x63, (byte)0x34, (byte)0x39, (byte)0x62, (byte)0x36, (byte)0x62, (byte)0x33, (byte)0x62, (byte)0x64, (byte)0x35, (byte)0x35, (byte)0x37, (byte)0x65, (byte)0x65, (byte)0x61, (byte)0x38, (byte)0x63, (byte)0x38, (byte)0x61, (byte)0x37, (byte)0x33, (byte)0x62, (byte)0x38, (byte)0x36, (byte)0x30, (byte)0x65, (byte)0x64, (byte)0x36, (byte)0x30, (byte)0x36, (byte)0x32, (byte)0x63, (byte)0x62, (byte)0x32, (byte)0x34, (byte)0x37, (byte)0x32, (byte)0x65, (byte)0x32, (byte)0x66, (byte)0x36, (byte)0x36, (byte)0x31, (byte)0x33, (byte)0x35, (byte)0x65, (byte)0x30, (byte)0x61, (byte)0x37, (byte)0x32, (byte)0x37, (byte)0x64, (byte)0x36, 

Process finished with exit code 0