package util;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class Sha1 {
public static String SHA1(String decript) {
try {
MessageDigest digest = java.security.MessageDigest
.getInstance("SHA-1");
digest.update(decript.getBytes());
byte messageDigest = digest.digest();
// Create Hex String
StringBuffer hexString = new StringBuffer();
// 字节数组转换为 十六进制 数
for (int i = 0; i < messageDigest.length; i++) {
String shaHex = Integer.toHexString(messageDigest _& 0xFF);
if (shaHex.length() < 2) {
hexString.append(0);
}
hexString.append(shaHex);
}
return hexString.toString();
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
return "";
}
public static void main(String args)
{
//测试的时候把注释取消掉即可
// System.out.println(Sha1.SHA1("354"));
// System.out.println(Sha1.SHA1("12354"));
}
}_