如何将16进制数字转换成字符串 java java 16进制字符串怎么转换成10进制字符串
\u8bf7\u6559JAVA\u600e\u4e48\u5c06\u5341\u516d\u8fdb\u5236\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u591a\u8c22private static String hexString = "0123456789ABCDEF";public static void main(String[] args) { System.out.println(encode("\u4e2d\u6587")); System.out.println(decode(encode("\u4e2d\u6587")));}/* * \u5c06\u5b57\u7b26\u4e32\u7f16\u7801\u621016\u8fdb\u5236\u6570\u5b57,\u9002\u7528\u4e8e\u6240\u6709\u5b57\u7b26\uff08\u5305\u62ec\u4e2d\u6587\uff09 */public static String encode(String str) { // \u6839\u636e\u9ed8\u8ba4\u7f16\u7801\u83b7\u53d6\u5b57\u8282\u6570\u7ec4 byte[] bytes = str.getBytes(); StringBuilder sb = new StringBuilder(bytes.length * 2); // \u5c06\u5b57\u8282\u6570\u7ec4\u4e2d\u6bcf\u4e2a\u5b57\u8282\u62c6\u89e3\u62102\u4f4d16\u8fdb\u5236\u6574\u6570 for (int i = 0; i > 4));sb.append(hexString.charAt((bytes[i] & 0x0f) >> 0));} return sb.toString();}/* * \u5c0616\u8fdb\u5236\u6570\u5b57\u89e3\u7801\u6210\u5b57\u7b26\u4e32,\u9002\u7528\u4e8e\u6240\u6709\u5b57\u7b26\uff08\u5305\u62ec\u4e2d\u6587\uff09 */public static String decode(String bytes) { ByteArrayOutputStream baos = new ByteArrayOutputStream(bytes.length() / 2); // \u5c06\u6bcf2\u4f4d16\u8fdb\u5236\u6574\u6570\u7ec4\u88c5\u6210\u4e00\u4e2a\u5b57\u8282 for (int i = 0; i < bytes.length(); i += 2)baos.write((hexString.indexOf(bytes.charAt(i)) << 4 | hexString.indexOf(bytes.charAt(i + 1)))); return new String(baos.toByteArray());}\u4eb2\u6d4b\u53ef\u884c\uff0c\u652f\u6301\u4e2d\u6587\uff01\uff01\uff01
toHexString
public static String toHexString(int
i)\u4ee5\u5341\u516d\u8fdb\u5236\u7684\u65e0\u7b26\u53f7\u6574\u6570\u5f62\u5f0f\u8fd4\u56de\u4e00\u4e2a\u6574\u6570\u53c2\u6570\u7684\u5b57\u7b26\u4e32\u8868\u793a\u5f62\u5f0f\u3002
\u5982\u679c\u53c2\u6570\u4e3a\u8d1f\uff0c\u90a3\u4e48\u65e0\u7b26\u53f7\u6574\u6570\u503c\u4e3a\u53c2\u6570\u52a0\u4e0a
232\uff1b\u5426\u5219\u7b49\u4e8e\u8be5\u53c2\u6570\u3002\u5c06\u8be5\u503c\u8f6c\u6362\u4e3a\u5341\u516d\u8fdb\u5236\uff08\u57fa\u6570 16\uff09\u7684\u65e0\u524d\u5bfc 0 \u7684 ASCII \u6570\u5b57\u5b57\u7b26\u4e32\u3002\u5982\u679c\u65e0\u7b26\u53f7\u6570\u7684\u5927\u5c0f\u503c\u4e3a\u96f6\uff0c\u5219\u7528\u4e00\u4e2a\u96f6\u5b57\u7b26 '0'
('\u0030') \u8868\u793a\u5b83\uff1b\u5426\u5219\uff0c\u65e0\u7b26\u53f7\u6570\u5927\u5c0f\u7684\u8868\u793a\u5f62\u5f0f\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5b57\u7b26\u5c06\u4e0d\u662f\u96f6\u5b57\u7b26\u3002\u7528\u4ee5\u4e0b\u5b57\u7b26\u4f5c\u4e3a\u5341\u516d\u8fdb\u5236\u6570\u5b57\uff1a
0123456789abcdef
\u8fd9\u4e9b\u5b57\u7b26\u7684\u8303\u56f4\u662f\u4ece '\u0030' \u5230 '\u0039' \u548c\u4ece '\u0061' \u5230 '\u0066'\u3002\u5982\u679c\u5e0c\u671b\u5f97\u5230\u5927\u5199\u5b57\u6bcd\uff0c\u53ef\u4ee5\u5728\u7ed3\u679c\u4e0a\u8c03\u7528
String.toUpperCase() \u65b9\u6cd5\uff1a
Integer.toHexString(n).toUpperCase()
\u53c2\u6570\uff1a
i
- \u8981\u8f6c\u6362\u6210\u5b57\u7b26\u4e32\u7684\u6574\u6570\u3002
\u8fd4\u56de\uff1a
\u7528\u5341\u516d\u8fdb\u5236\uff08\u57fa\u6570 16\uff09\u53c2\u6570\u8868\u793a\u7684\u65e0\u7b26\u53f7\u6574\u6570\u503c\u7684\u5b57\u7b26\u4e32\u8868\u793a\u5f62\u5f0f\u3002
// \u8f6c\u5316\u5b57\u7b26\u4e32\u4e3a\u5341\u516d\u8fdb\u5236\u7f16\u7801
public static String toHexString(String s)
{
String str="";
for
(int i=0;i<s.length();i++)
{
int ch = (int)s.charAt(i);
String s4
= Integer.toHexString(ch);
str = str + s4;
}
return str;
}
// \u8f6c\u5316\u5341\u516d\u8fdb\u5236\u7f16\u7801\u4e3a\u5b57\u7b26\u4e32
public static String toStringHex(String s)
{
byte[] baKeyword = new byte[s.length()/2];
for(int i = 0; i <
baKeyword.length; i++)
{
try
{
baKeyword[i] = (byte)(0xff &
Integer.parseInt(s.substring(i*2, i*2+2),16));
}
catch(Exception e)
{
e.printStackTrace();
}
}
try
{
s = new
String(baKeyword, "utf-8");//UTF-16le:Not
}
catch (Exception e1)
{
e1.printStackTrace();
}
return s;
}
// \u8f6c\u5316\u5341\u516d\u8fdb\u5236\u7f16\u7801\u4e3a\u5b57\u7b26\u4e32
public static String toStringHex(String s)
{
byte[] baKeyword = new
byte[s.length()/2];
for(int i = 0; i < baKeyword.length; i++)
{
try
{
baKeyword[i] = (byte)(0xff &
Integer.parseInt(s.substring(i*2, i*2+2),16));
}
catch(Exception e)
{
e.printStackTrace();
}
}
try
{
s = new
String(baKeyword, "utf-8");//UTF-16le:Not
}
catch (Exception e1)
{
e1.printStackTrace();
}
return s;
}
public static void
main(String[] args) {
System.out.println(encode("\u4e2d\u6587"));
System.out.println(decode(encode("\u4e2d\u6587")));
}
/*
* 16\u8fdb\u5236\u6570\u5b57\u5b57\u7b26\u96c6
*/
private static String hexString="0123456789ABCDEF";
/*
*
\u5c06\u5b57\u7b26\u4e32\u7f16\u7801\u621016\u8fdb\u5236\u6570\u5b57,\u9002\u7528\u4e8e\u6240\u6709\u5b57\u7b26\uff08\u5305\u62ec\u4e2d\u6587\uff09
*/
public static String encode(String str)
{
//\u6839\u636e\u9ed8\u8ba4\u7f16\u7801\u83b7\u53d6\u5b57\u8282\u6570\u7ec4
byte[] bytes=str.getBytes();
StringBuilder
sb=new StringBuilder(bytes.length*2);
//\u5c06\u5b57\u8282\u6570\u7ec4\u4e2d\u6bcf\u4e2a\u5b57\u8282\u62c6\u89e3\u62102\u4f4d16\u8fdb\u5236\u6574\u6570
for(int
i=0;i<bytes.length;i++)
{
sb.append(hexString.charAt((bytes[i]&0xf0)>>4));
sb.append(hexString.charAt((bytes[i]&0x0f)>>0));
}
return
sb.toString();
}
/*
* \u5c0616\u8fdb\u5236\u6570\u5b57\u89e3\u7801\u6210\u5b57\u7b26\u4e32,\u9002\u7528\u4e8e\u6240\u6709\u5b57\u7b26\uff08\u5305\u62ec\u4e2d\u6587\uff09
*/
public
static String decode(String bytes)
{
ByteArrayOutputStream baos=new
ByteArrayOutputStream(bytes.length()/2);
//\u5c06\u6bcf2\u4f4d16\u8fdb\u5236\u6574\u6570\u7ec4\u88c5\u6210\u4e00\u4e2a\u5b57\u8282
for(int
i=0;i<bytes.length();i+=2)
baos.write((hexString.indexOf(bytes.charAt(i))<<4
|hexString.indexOf(bytes.charAt(i+1))));
return new
String(baos.toByteArray());
}
\u7b2c\u4e8c\u79cd\u65b9\u6cd5\uff1a
\u5c06\u6307\u5b9abyte\u6570\u7ec4\u4ee516\u8fdb\u5236\u7684\u5f62\u5f0f\u6253\u5370\u5230\u63a7\u5236\u53f0
\u590d\u5236\u4ee3\u7801
\u4ee3\u7801\u5982\u4e0b:
package com.nantian.iclient.atm.sdb;
public class Util {
public Util() {
}
/**
*
\u5c06\u6307\u5b9abyte\u6570\u7ec4\u4ee516\u8fdb\u5236\u7684\u5f62\u5f0f\u6253\u5370\u5230\u63a7\u5236\u53f0
* @param hint String
* @param b byte[]
*
@return void
*/
public static void printHexString(String hint, byte[] b)
{
System.out.print(hint);
for (int i = 0; i < b.length; i++) {
String hex = Integer.toHexString(b[i] & 0xFF);
if (hex.length() ==
1) {
hex = '0' + hex;
}
System.out.print(hex.toUpperCase() + " ");
}
System.out.println("");
}
/**
*
* @param b byte[]
* @return String
*/
public static String Bytes2HexString(byte[] b) {
String ret = "";
for (int i = 0; i < b.length; i++) {
String hex
= Integer.toHexString(b[i] & 0xFF);
if (hex.length() == 1) {
hex =
'0' + hex;
}
ret += hex.toUpperCase();
}
return ret;
}
/**
* \u5c06\u4e24\u4e2aASCII\u5b57\u7b26\u5408\u6210\u4e00\u4e2a\u5b57\u8282\uff1b
* \u5982\uff1a"EF"--> 0xEF
* @param src0
byte
* @param src1 byte
* @return byte
*/
public static byte
uniteBytes(byte src0, byte src1) {
byte _b0 = Byte.decode("0x" + new
String(new byte[]{src0})).byteValue();
_b0 = (byte)(_b0 << 4);
byte _b1 = Byte.decode("0x" + new String(new byte[]{src1})).byteValue();
byte ret = (byte)(_b0 ^ _b1);
return ret;
}
/**
*
\u5c06\u6307\u5b9a\u5b57\u7b26\u4e32src\uff0c\u4ee5\u6bcf\u4e24\u4e2a\u5b57\u7b26\u5206\u5272\u8f6c\u6362\u4e3a16\u8fdb\u5236\u5f62\u5f0f
* \u5982\uff1a"2B44EFD9" --> byte[]{0x2B, 0x44, 0xEF,
0xD9}
* @param src String
* @return byte[]
*/
public static
byte[] HexString2Bytes(String src){
byte[] ret = new byte[8];
byte[] tmp
= src.getBytes();
for(int i=0; i<8; i++){
ret[i] =
uniteBytes(tmp[i*2], tmp[i*2+1]);
}
return ret;
}
}
public static String toStringHex1(String s) {
byte[] baKeyword = new byte[s.length() / 2];
for (int i = 0; i < baKeyword.length; i++) {
try {
baKeyword[i] = (byte) (0xff & Integer.parseInt(s.substring(
i * 2, i * 2 + 2), 16));
} catch (Exception e) {
e.printStackTrace();
}
}
try {
s = new String(baKeyword, "utf-8");// UTF-16le:Not
} catch (Exception e1) {
e1.printStackTrace();
}
return s;
}
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绛旓細16杩涘埗杞崲鎴愬瓧绗︿覆锛歋tring b = String.Parse("AB", System.Globalization.NumberStyles.HexNumber)
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绛旓細浣跨敤杩欎釜鏂规硶鍙互浼犺繘鍘荤殑16杩涘埗鐨鏁板瓧缁勬垚鐨瀛楃涓茶浆鍖栦负utf-8鏍煎紡鐨勫瓧绗︿覆 public static String toStringHex1(String s){ byte[]baKeyword = new byte[s.length()/ 2];for (int i = 0;i < baKeyword.length;i++){ try { baKeyword[i]= (byte)(0xff & Integer.parseInt(s.substring(...
绛旓細private static String hexString = "0123456789ABCDEF";public static void main(String[] args) { System.out.println(encode("涓枃")); System.out.println(decode(encode("涓枃")));}/* * 灏嗗瓧绗︿覆缂栫爜鎴16杩涘埗鏁板瓧,閫傜敤浜庢墍鏈夊瓧绗︼紙鍖呮嫭涓枃锛 */public static String encode(String str...
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绛旓細灏16杩涘埗瀛楃杞垚浜岃繘鍒跺瓧绗 def str2byte(s):base='0123456789ABCDEF'i=0 s = s.upper()s1=''while i < len(s):c1=s[i]c2=s[i+1]i+=2 b1=base.find(c1)b2=base.find(c2)if b1 == -1 or b2 == -1:return None s1+=chr((b1 << 4)+b2)return s1 s = 'C7 EB CE...
