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  • android将String转化为MD5的方法+一些String经常使用的方法

    public class StringUtils {
    
    	
    	public static String MD5Encode(String origin) {
    		String resultString = null;
    		try {
    		    resultString = new String(origin);
    		    MessageDigest md = MessageDigest.getInstance("MD5");
    		    resultString = byteArrayToHexString(md.digest(resultString.getBytes()));
    		}
            catch (Exception ex) {
            
            }
    		return resultString;
    	}
    	
    	public static String byteArrayToHexString(byte[] b) {
    		StringBuffer resultSb = new StringBuffer();
    		for (int i = 0; i < b.length; i++) {
    			resultSb.append(byteToHexString(b[i]));
    		}
    		return resultSb.toString();
    	}
    	
    	
    	private static String byteToHexString(byte b) {
    		int n = b;
    		if (n < 0)
    			n = 256 + n;
    		int d1 = n / 16;
    		int d2 = n % 16;
    		return hexDigits[d1] + hexDigits[d2];
    	}
    	
    	private final static String[] hexDigits = {
    		"0", "1", "2", "3", "4", "5", "6", "7",
    		"8", "9", "a", "b", "c", "d", "e", "f"};
    
    }
    

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  • 原文地址:https://www.cnblogs.com/mfmdaoyou/p/6917239.html
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