我希望这不是一个愚蠢的问题,我已经查看了谷歌搜索结果的5个不同页面,但未能找到任何相关内容。
我需要做的是将包含所有十六进制字符的字符串转换为ASCII,例如
String fileName =
75546f7272656e745c436f6d706c657465645c6e667375635f6f73745f62795f6d757374616e675c50656e64756c756d2d392c303030204d696c65732e6d7033006d7033006d7033004472756d202620426173730050656e64756c756d00496e2053696c69636f00496e2053696c69636f2a3b2a0050656e64756c756d0050656e64756c756d496e2053696c69636f303038004472756d2026204261737350656e64756c756d496e2053696c69636f30303800392c303030204d696c6573203c4d757374616e673e50656e64756c756d496e2053696c69636f3030380050656e64756c756d50656e64756c756d496e2053696c69636f303038004d50330000
我看到的每一种方式都让你觉得必须先将它放入数组中。有没有办法遍历每一个并转换它们?
答案 0 :(得分:92)
只需使用for循环遍历字符串中的每个字符,将它们转换为字符,然后敲击字符串生成器末尾的字符:
public static void main(String[] args) {
String hex = "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";
StringBuilder output = new StringBuilder();
for (int i = 0; i < hex.length(); i+=2) {
String str = hex.substring(i, i+2);
output.append((char)Integer.parseInt(str, 16));
}
System.out.println(output);
}
这给出了以下几行开头的几行:
uTorrent \已完成\ nfsuc_ost_by_mustang \ Pendulum-9,000 Miles.mp3
嗯......: - )
答案 1 :(得分:6)
使用javax.xml.bind.DatatypeConverter
最简单的方法:
String hex = "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";
byte[] s = DatatypeConverter.parseHexBinary(hex);
System.out.println(new String(s));
答案 2 :(得分:2)
查看Convert a string representation of a hex dump to a byte array using Java?
忽略编码等,您可以new String (hexStringToByteArray("75546..."));
答案 3 :(得分:2)
据我了解,你需要拉出连续的十六进制数字对,然后解码那个2位十六进制数字并取相应的字符:
String s = "...";
StringBuilder sb = new StringBuilder(s.length() / 2);
for (int i = 0; i < s.length(); i+=2) {
String hex = "" + s.charAt(i) + s.charAt(i+1);
int ival = Integer.parseInt(hex, 16);
sb.append((char) ival);
}
String string = sb.toString();
答案 4 :(得分:2)
String hexToAscii(String s) {
int n = s.length();
StringBuilder sb = new StringBuilder(n / 2);
for (int i = 0; i < n; i += 2) {
char a = s.charAt(i);
char b = s.charAt(i + 1);
sb.append((char) ((hexToInt(a) << 4) | hexToInt(b)));
}
return sb.toString();
}
private static int hexToInt(char ch) {
if ('a' <= ch && ch <= 'f') { return ch - 'a' + 10; }
if ('A' <= ch && ch <= 'F') { return ch - 'A' + 10; }
if ('0' <= ch && ch <= '9') { return ch - '0'; }
throw new IllegalArgumentException(String.valueOf(ch));
}
答案 5 :(得分:1)
//%%%%%%%%%%%%%%%%%%%%%% HEX to ASCII %%%%%%%%%%%%%%%%%%%%%%
public String convertHexToString(String hex){
String ascii="";
String str;
// Convert hex string to "even" length
int rmd,length;
length=hex.length();
rmd =length % 2;
if(rmd==1)
hex = "0"+hex;
// split into two characters
for( int i=0; i<hex.length()-1; i+=2 ){
//split the hex into pairs
String pair = hex.substring(i, (i + 2));
//convert hex to decimal
int dec = Integer.parseInt(pair, 16);
str=CheckCode(dec);
ascii=ascii+" "+str;
}
return ascii;
}
public String CheckCode(int dec){
String str;
//convert the decimal to character
str = Character.toString((char) dec);
if(dec<32 || dec>126 && dec<161)
str="n/a";
return str;
}
答案 6 :(得分:0)
对于这种情况,我将十六进制数据格式转换为int数组,我想在String上转换它们。
int[] encodeHex = new int[] { 0x48, 0x65, 0x6c, 0x6c, 0x6f }; // Hello encode
for (int i = 0; i < encodeHex.length; i++) {
System.out.print((char) (encodeHex[i]));
}