JavaMD5与OCMD5匹配一致

Java端代码如下:

第一种方法:

public class test {  
    public final static String MD5(String s) {    
          char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',    
            'a', 'b', 'c', 'd', 'e', 'f' };    
          try {    
               byte[] strTemp = s.getBytes();  
               MessageDigest mdTemp = MessageDigest.getInstance("MD5");    
               mdTemp.update(strTemp);    
               byte[] md = mdTemp.digest();    
               int j = md.length;    
               char str[] = new char[j * 2];    
               int k = 0;    
               for (int i = 0; i < j; i++) {    
                    byte byte0 = md[i];  
                    str[k++] = hexDigits[byte0 >>> 4 & 0xf];    
                    str[k++] = hexDigits[byte0 & 0xf];    
               }  
               return new String(str);    
              } catch (Exception e) {    
               return null;    
              }    
         }  
    
    //测试  
    public static void main(String[] args) {  
        String testStr = "1";  
        String resultStr = MD5(testStr);  
        System.out.println(resultStr);  
    }      
}

第2中方法:

public static String md5(String str) {  
        String digest = null;  
        StringBuffer buffer = new StringBuffer();  
        try {  
            MessageDigest digester = MessageDigest.getInstance("md5");  
            byte[] digestArray = digester.digest(str.getBytes());  
            for (int i = 0; i < digestArray.length; i++) {  
                buffer.append(String.format("%02x", digestArray[i]));  
            }  
            digest = buffer.toString();  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
        return digest;  
    } 

iOS端代码如下:

+(NSString *)stringToMD5:(NSString *)inputStr{  
    const charchar *cStr = [inputStr UTF8String];  
    unsigned char result[CC_MD5_DIGEST_LENGTH];  
    CC_MD5(cStr, strlen(cStr), result);  
    NSString *resultStr = [NSString stringWithFormat:@"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",  
                           result[0], result[1], result[2], result[3],  
                           result[4], result[5], result[6], result[7],  
                           result[8], result[9], result[10], result[11],  
                           result[12], result[13], result[14], result[15]  
                           ];  
    return [resultStr lowercaseString];  
}

这样就可以达到Java与iOS加密后的结果一致!!!