private static void Md5(String plainText ) {
try {
MessageDigest md = MessageDigest.getInstance("MD5");
md.update(plainText.getBytes());
byte b[] = md.digest();
int i;
StringBuffer buf = new StringBuffer("");
for (int offset = 0; offset < b.length; offset++) {
i = b[offset];
if(i<0) i+= 256;
if(i<16)
buf.append("0");
buf.append(Integer.toHexString(i));
}
System.out.println("result: " + buf.toString());//32位的加密
System.out.println("result: " + buf.toString().substring(8,24));//16位的加密
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
}
Md5("12312312312312"); 结果:
result: ba56bab91016bcb37878e06c16e9e68f
MD5数据加密
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转载自liuzhiqiang19890403.iteye.com/blog/2083600
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