WxPay/src/main/java/com/ynxbd/common/helper/TestHelper.java

package com.ynxbd.common.helper;

import com.auth0.jwt.JWT;
import com.auth0.jwt.JWTCreator;
import com.auth0.jwt.algorithms.Algorithm;
import com.ynxbd.common.helper.common.JwtHelper;
import lombok.extern.slf4j.Slf4j;

import java.util.Calendar;

@Slf4j
public class TestHelper {
//    public static void main(String[] args) {
//        String treatNum = "1579733" + "huiyou69";
//        String key = DigestUtils.md5Hex(treatNum).toUpperCase();
//        System.out.println(key);
//        String substring = key.substring(3, 12);
//        System.out.println(substring);
//    }

    private static final String TOKEN_KEY = "OPEN_ID";

    /**
     * 生成token
     *
     * @param sign 密钥
     * @return token
     */
    public static String createOpenIdToken(String sign, String openId) {
        try {
            JWTCreator.Builder builder = JWT.create();
            builder.withClaim(TOKEN_KEY, openId);
            // 有效时间
            Calendar instance = Calendar.getInstance();
            instance.add(Calendar.HOUR, 1);
            builder.withExpiresAt(instance.getTime());
            return builder.sign(Algorithm.HMAC256(sign));
        } catch (Exception e) {
            log.error("生成token异常：[ {} ]", e.getMessage());
            return null;
        }
    }

    public static void main(String[] args) {
        String token = createOpenIdToken("token", "openid-123");
        System.out.println(token);
        String openid = getUserOpenId(token);
        System.out.println(openid);
    }

    /**
     * 获取userId
     *
     * @return userId
     */
    public static String getUserOpenId(String token) {
        return JwtHelper.getTokenVal(token, TOKEN_KEY, String.class);
    }
}