Java - 将vCard中十六进制编码转换成Unicode

 1 package Function.Base_Function;
 2 
 3 import java.io.UnsupportedEncodingException;
 4 
 5 /**
 6  *
 7  * @author Sineatos
 8  */
 9 
10 public class CodeTranslator {
11     private CodeTranslator(){
12     }
13     
14     /**
15      * 将十六进制编码转化为目标编码
16      */
17    public static String HextoString(String string,String CodeName){
18         String[] Hex;
19         Hex = string.split("=");
20         byte[] bytes = new byte[Hex.length-1];
21         int j=0;
22         for(int i=1;i<Hex.length;i++){
23             if(Hex[i].length()>2){
24                 /*如果是非十六进制编码的时候直接将这些编码写进bytes数组*/
25                 byte[] wordsbytes = Hex[i].getBytes();
26                 byte[] newbytes = new byte[bytes.length + wordsbytes.length];
27                 // System.attaycopy(src,srcPos,dest,destPos,length);
28                 System.arraycopy(bytes, 0, newbytes, 0, bytes.length);
29                 System.arraycopy(wordsbytes, 0, newbytes, j, wordsbytes.length);
30                 bytes = newbytes;
31                 j=j+wordsbytes.length;
32             }else{
33                 Integer hex = Integer.decode("0x" + Hex[i]);
34                 bytes[j] = hex.byteValue();
35                 j++;
36             }
37         }
38         String newstring = null;
39         try {
40             newstring =  new String(bytes,CodeName);
41         } catch (UnsupportedEncodingException ex) {
42             System.out.println("Error in Encoding Vcard");
43         }
44         return newstring;
45     }
46 }