用户密码加密工具

加密类

import org.apache.commons.codec.binary.Base64;

import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;

public class CryptoUtil {
    //加密算法
	private static final String DESede_ALGORITHM = "DESede";
    //加盐
	private static final String KEY = "xxxx";

	/**
	 * 文本加密
	 * 
	 * @param plain 待加密文本
	 * @return
	 * @throws Exception
	 */
	public static final String encrypt(String plain) {
		byte[] newKeys = getKeys(KEY);
		try {
			SecretKey secureKey = new SecretKeySpec(newKeys, DESede_ALGORITHM);
			Cipher cipher = Cipher.getInstance(DESede_ALGORITHM);
			cipher.init(1, secureKey);
			byte[] encrypted = cipher.doFinal(plain.getBytes());
			return new String(Base64.encodeBase64(encrypted));
		} catch (Exception e) {
			return null;
		}
	}

	/**
	 * 密码解密
	 * 
	 * @param cryptograph 待解密密码
	 * @return
	 * @throws Exception
	 */
	public static final String decrypt(String cryptograph) {
		byte[] newKeys = getKeys(KEY);

		byte[] encrypted = Base64.decodeBase64(cryptograph.getBytes());
		try {
			SecretKey secureKey = new SecretKeySpec(newKeys, DESede_ALGORITHM);
			Cipher cipher = Cipher.getInstance(DESede_ALGORITHM);
			cipher.init(2, secureKey);
			byte[] cryptoGraphs = cipher.doFinal(encrypted);
			return new String(cryptoGraphs);
		} catch (Exception e) {
			return null;
		}
	}

	private static byte[] getKeys(String key) {
		byte[] oldKeys = KEY.getBytes();
		byte[] newKeys = new byte[24];
		for (int i = 0; i < oldKeys.length && i != 24; i++)
			newKeys[i] = oldKeys[i];
		return newKeys;
	}

	public static void main(String[] args) throws Exception {
		System.out.println(CryptoUtil.encrypt("xxxxxx"));
		System.out.println(CryptoUtil.decrypt("gySSNZWJIyQ="));
		System.out.println(CryptoUtil.decrypt("/4lOgQ80Y9LVB69nhkR1tA=="));
	}
}

对用户密码先进行加密后再入库

jwt依赖

<dependency>
	<groupId>io.jsonwebtoken</groupId>
	<artifactId>jjwt-impl</artifactId>
	<version>${jjwt.version}</version>
</dependency>
<dependency>
	<groupId>io.jsonwebtoken</groupId>
	<artifactId>jjwt-jackson</artifactId>
	<version>${jjwt.version}</version>
</dependency>