spring boot使用des算法生成jwt token

1.
引入jwt工具包依赖

io.jsonwebtoken
jjwt
0.7.0

2.DesUtil.java

package org.cloud.bank.client.util;

import java.security.SecureRandom;

import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;

public final class DesUtil {

public static final String DEFAULT_PASSWORD_CRYPT_KEY = "huanghongfei";private static final String DES = "DES";private static Cipher cipher = null;static {    // Cipher对象实际完成加密操作    try {        cipher = Cipher.getInstance(DES);    } catch (Exception e) {        e.printStackTrace();    }}private DesUtil() {}public static byte[] encrypt(byte[] src, byte[] key) throws Exception {    // DES算法要求有一个可信任的随机数源    SecureRandom sr = new SecureRandom();    // 从原始密匙数据创建DESKeySpec对象    DESKeySpec dks = new DESKeySpec(key);    // 创建一个密匙工厂，然后用它把DESKeySpec转换成    // 一个SecretKey对象    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(DES);    SecretKey securekey = keyFactory.generateSecret(dks);    // 用密匙初始化Cipher对象    cipher.init(Cipher.ENCRYPT_MODE, securekey, sr);    // 正式执行加密操作    return cipher.doFinal(src);}public static byte[] decrypt(byte[] src, byte[] key) throws Exception {    // DES算法要求有一个可信任的随机数源    SecureRandom sr = new SecureRandom();    // 从原始密匙数据创建一个DESKeySpec对象    DESKeySpec dks = new DESKeySpec(key);    // 创建一个密匙工厂，然后用它把DESKeySpec对象转换成    // 一个SecretKey对象    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(DES);    SecretKey securekey = keyFactory.generateSecret(dks);    // 用密匙初始化Cipher对象    cipher.init(Cipher.DECRYPT_MODE, securekey, sr);    // 正式执行解密操作    return cipher.doFinal(src);}public static String decrypt(String data) {    try {        return new String(decrypt(hex2byte(data.getBytes()),DEFAULT_PASSWORD_CRYPT_KEY.getBytes()));    } catch (Exception e) {        e.printStackTrace();        ;    }    return null;}public static String decrypt(String data, String key) {    try {        return new String(                decrypt(hex2byte(data.getBytes()), key.getBytes()));    } catch (Exception e) {        e.printStackTrace();        ;    }    return null;}public static String encrypt(String data) {    try {        return byte2hex(encrypt(data.getBytes(),                DEFAULT_PASSWORD_CRYPT_KEY.getBytes()));    } catch (Exception e) {        e.printStackTrace();    }    return null;}public static String encrypt(String data, String key) {    try {        return byte2hex(encrypt(data.getBytes(), key.getBytes()));    } catch (Exception e) {        e.printStackTrace();        ;    }    return null;}public static String byte2hex(byte[] b) {    String hs = "";    String stmp = "";    for (int n = 0; n < b.length; n++) {        stmp = (java.lang.Integer.toHexString(b[n] & 0XFF));        if (stmp.length() == 1) {            hs = hs + "0" + stmp;        } else {            hs = hs + stmp;        }    }    return hs.toUpperCase();}public static byte[] hex2byte(byte[] b) {    if ((b.length % 2) != 0) {        throw new IllegalArgumentException("长度不是偶数");    }    byte[] b2 = new byte[b.length / 2];    for (int n = 0; n < b.length; n += 2) {        String item = new String(b, n, 2);        b2[n / 2] = (byte) Integer.parseInt(item, 16);    }    return b2;}

/* public static void main(String[] args) {
String url = “http://hunqijiangzhi.com“;
url = DesUtil.encrypt(url);
System.out.println(url);
System.out.println(DesUtil.decrypt(url));
}*/

}

3.生成jwt token

package org.cloud.bank.client.util;

import java.util.Date;
import java.util.Map;

import org.joda.time.DateTime;

import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;

public class JwtUtil {

/** * token有效时间/天 */private static final int TOKEN_EXPIRATION_DAY=7;/** * token生成器 * @param headerParams 请求头参数列表 * @param claims 请求体参数列表 * @return token */public static String tokenGenerator(Map<String,Object> headerParams,Map<String,Object> bodyParams) {    DateTime dt = new DateTime();    Date expiration = dt.plusDays(TOKEN_EXPIRATION_DAY).toDate();    bodyParams.put("expiration",expiration);    String token=Jwts.builder()        .setHeaderParams(headerParams)        .setClaims(bodyParams)        .signWith(SignatureAlgorithm.HS256, DesUtil.DEFAULT_PASSWORD_CRYPT_KEY)        .compact();;    return token;}

}