com.generallycloud.baseio.common.SHAUtil Maven / Gradle / Ivy
/*
* Copyright 2015-2017 GenerallyCloud.com
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.generallycloud.baseio.common;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class SHAUtil {
public static String SHA(String decript) {
try {
MessageDigest digest = java.security.MessageDigest.getInstance("SHA");
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[i] & 0xFF);
if (shaHex.length() < 2) {
hexString.append(0);
}
hexString.append(shaHex);
}
return hexString.toString();
} catch (NoSuchAlgorithmException e) {
throw new RuntimeException(e);
}
}
public static void main(String[] args) {
String ss = "test2";
String s = SHA(ss);
System.out.println(s);
}
}