Delphi异或算法转换为java实现

#Delphi运算符转JAVA#【转AscII码】ord()→int(char)；【右移】shr→>>;【左移】shl→<<;【自增】inc(i)→i++

一、Delphi异或算法实现

function YiHuoEncrypt(Str:String):String;//字符加密函數 這是用的一個異或加密
var
  i,j:Integer;
const
  xKey :array[0..7] of Byte=($AA,$BB,$CC,$DD,$EE,$FF,$AB,$CD); //字符串加密用  查询传输
begin
    
  Result:='';
  j:=0;
  for i:=1 to Length(Str) do
    begin
     Result:=Result+IntToHex((Byte(Str[i]) xor XKey[j]),2);
     j:=(j+1) mod 8;
    end;
end;

转换为Java的异或算法实现：

    public static String EncrySck(String s){
        byte xKey[] = {Byte.parseByte( "0xAA" ),Byte.parseByte("0xBB" ),Byte.parseByte("0xCC" ),Byte.parseByte("0xDD" ),Byte.parseByte("0xFF" ),Byte.parseByte("0xAB" ),Byte.parseByte("0xCD" ),Byte.parseByte("0xEF" )};
        String result = "";
        int j = 0;
        int a = 0;
        byte[] data = s.getBytes();
        for(int i = 0;i<s.length();i++){
            a = (data[i] ^ xKey[j]);
            result = result + Integer.toHexString(a);
            j = (j+1)% 8;
        }
        return result;
    }

二、Delphi的Encode7bit算法实现：

function Encode7bit(src:string):string;
var  i,j,cur,len:integer;
t:string;
begin
    i := 1;
    j := 0;

    result:='';
    len:=length(src);
 
    while(i<=len) do
    begin
      if (i<len) then
        cur:=(ord(src[i]) shr j) or ((ord(src[i+1]) shl (7-j)) and $FF)
      else  //  最后一位
        cur:=(ord(src[i]) shr j) and $7F;

      t:=inttohex(cur,2);
      result:=result+t;
      inc(i);
      j:=(j+1) mod 7;
      if j=0 then
        inc(i);

    end;

end;

转换为Java的Encode7bit算法实现：

    
    /*
     * 加密前：1234567890
     * 加密后：    31D98C56B3DD703918
     * 
     */
    private String Encode7bit(String src){
        String result = null;
        System.out.println("before:"+src);
        int i=0,j=0,cur,len;
        String t;
        len = src.length();
        char[] srcarr = src.toCharArray();
        while(i<len){
              if (i<len-1) {
                cur=(char2AscII(srcarr[i]) >> j) | ((char2AscII(srcarr[i+1]) << (7-j)) & 255);
              }else  {//  最后一位
                cur=(char2AscII(srcarr[i]) >> j) & 127;
              }
              t=toHexStr(cur);
              System.out.println("j:"+j+"__srcarr[i="+i+"]:"+srcarr[i]+"__cur:"+cur+"__t:"+t);
              result=result+t;
              i++;
              j=(j+1) % 7;
              if (j==0)
                i++;
        }
        System.out.println("result:"+result.toUpperCase());
        return result.toUpperCase();
        
    }
    
    /*
     * int转换成两位16进制数
     */
    private String toHexStr(int cur){
        String result = Integer.toHexString(cur);
        if(result.length()<2){
            result = "0" + result;
        }
        return result;
    }
    
    /*
     * 字符转AscII码
     */
    private static int char2AscII(char a){
         return (int) a;   
    }
    
    /*
     * 字符串转换为ASCII码   
     */
    public static int[] string2ASCII(String s) {
        if (s == null || "".equals(s)) {   
            return null;   
        }   
  
        char[] chars = s.toCharArray();   
        int[] asciiArray = new int[chars.length];   
  
        for (int i = 0; i < chars.length; i++) {   
            asciiArray[i] = char2AscII(chars[i]);   
        }   
        return asciiArray;   
    }