wxservice-server/src/main/java/thyyxxk/wxservice_server/Test.java

package thyyxxk.wxservice_server;

import org.apache.commons.codec.binary.Base64;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import thyyxxk.wxservice_server.utils.SnowFlakeId;

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import java.security.Security;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

public class Test {
    public static void main(String[] args) {
        Date now = new Date();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        try {
            Date sdate = new SimpleDateFormat("yyyy-MM-dd").parse("2023-03-23");
            System.out.println(now.before(sdate));
        } catch (Exception e) {
        }

//加密前：98134EAF0F594CD6A85CE3BB4367C72A&oao6f0y4oF7jd60QhzPzMD9C3bBU&37156
//加密后：zTS83k5dG5jaDl0EmRsy35qt37Nliu+kFvebbJxrFddhH/f1/eP4UjDQmeoiBb9W0mbSBJg3nT4KDVYtqGzWNOPM5UyixrFI4Cv8YewVa6I=

//        String uoh = "98134EAF0F594CD6A85CE3BB4367C72A&oao6f0y4oF7jd60QhzPzMD9C3bBU&37156";
//        byte[] contentBytes = uoh.getBytes();
//
//        String secret = "085181bf219749878035f575e0a1986a";
//        byte[] keyBytes = secret.getBytes();
//
//        //加密
//        String en = encrypt(contentBytes, keyBytes);
//        System.out.println(en);
//        //解密，用于本地验证
//        byte[] enb = en.getBytes();
//        byte[] de = decrypt(enb, keyBytes);
//        String str = new String(de);
//        System.out.println(str);
    }

    /**
     * AES加密
     *
     * @param contentBytes 由uuid&openid&hospitalId拼接的明文
     * @param keyBytes     开放平台分配的appSecret密钥
     * @return
     */
    public static String encrypt(byte[] contentBytes, byte[] keyBytes) {
        try {
            //添加一个安全管理器提供者
            Security.addProvider(new BouncyCastleProvider());
            //根据一个字节数组构造一个 SecretKey
            SecretKeySpec key = new SecretKeySpec(keyBytes, "AES");
            //设置加密类型
            Cipher cipher = Cipher.getInstance("AES/ECB/PKCS7Padding", "BC");
            cipher.init(Cipher.ENCRYPT_MODE, key); //用于将 Cipher 初始化为加密模式的常量。
            byte[] tmp = cipher.doFinal(contentBytes); //操作加密或解密数据
            //返回Base64后的加密串
            return new String(Base64.encodeBase64(tmp));
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }


    /**
     * AES解密
     *
     * @param contentBytes 加密后的openId字符串
     * @param keyBytes     开放平台分配的appSecret密钥
     * @return
     */
    public static byte[] decrypt(byte[] contentBytes, byte[] keyBytes) {
        try {
            Security.addProvider(new BouncyCastleProvider());
            SecretKeySpec key = new SecretKeySpec(keyBytes, "AES");
            Cipher cipher = Cipher.getInstance("AES/ECB/PKCS7Padding", "BC");
            cipher.init(Cipher.DECRYPT_MODE, key);
            byte[] tmp = cipher.doFinal(Base64.decodeBase64(contentBytes));
            return tmp;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

}