package com.ltkj.framework.config;

import com.ltkj.common.utils.StringUtils;
import io.jsonwebtoken.*;

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

/**
 * @Author: 西安路泰科技有限公司/赵佳豪
 * @Date: 2022/11/17 9:48
 * 生成token工具类
 */


public class JwtUtils {

    //秘钥
    private static final String TOOKRN_SECRET = "ltkj";

    //过期时间
    private static final long TOKEN_TIME_OUT = 1000 * 60 * 60 * 24 * 7;

    //生成token
    public static String getToken(Map params) {
        long currentTimeMillis = System.currentTimeMillis();

        return Jwts.builder()
                .signWith(SignatureAlgorithm.HS512, TOOKRN_SECRET)//加密方式
                .setExpiration(new Date(currentTimeMillis + TOKEN_TIME_OUT))//过期时间
                .addClaims(params)
                .compact();
    }

    //获取token信息
    public static Claims getClaims(String token) {
        return Jwts.parser()
                .setSigningKey(TOOKRN_SECRET)
                .parseClaimsJws(token).getBody();
    }

    //判断token是否有效
    public static boolean verifyToken(String token) {
        if (StringUtils.isEmpty(token)) {
            return false;
        }
        try {
            Claims claims = Jwts.parser().setSigningKey("ltkj").parseClaimsJws(token)
                    .getBody();
        } catch (ExpiredJwtException e) {
            return false;
        }
        return true;
    }

}