更新

kongzy

2024-01-29 983bdb5b89932b38d08a11ad1eed6ea89d1597e1

 assess-common/src/main/java/com/gkhy/assess/common/utils/JwtTokenUtil.java

@@ -1,18 +1,25 @@
package com.gkhy.assess.common.utils;

import cn.hutool.core.date.DateUtil;
import cn.hutool.crypto.digest.DigestUtil;
import com.auth0.jwt.JWT;
import com.auth0.jwt.JWTVerifier;
import com.auth0.jwt.algorithms.Algorithm;
import com.auth0.jwt.exceptions.JWTDecodeException;
import com.auth0.jwt.interfaces.DecodedJWT;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.gkhy.assess.common.api.CommonResult;
import com.gkhy.assess.common.exception.ApiException;
import org.apache.commons.lang3.StringUtils;
import org.apache.shiro.crypto.hash.Md5Hash;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Date;

/**
@@ -37,8 +44,13 @@

    public static String tokenHead="";

    /**Token有效期为7天（Token在reids中缓存时间为两倍）*/
    public static final long EXPIRATION=(7 * 12) * 60 * 60 * 1000;  //JWT的超期限时间(60*60*24*7)
    /**Token有效期为1天（Token在reids中缓存时间为两倍）  单位ms*/
    public static final long EXPIRATION=(1 * 24) * 60 * 60 * 1000;  //JWT的超期限时间(60*60*24*1)

    /**
     * token有效期还有30分钟，刷新token  单位ms
     */
    public static final long NEED_UPDATE_TIME= 30 * 60 * 1000;

    /**
     * 校验token是否正确
@@ -56,6 +68,20 @@
        }catch (Exception e){
            return false;
        }
    }


    public static boolean isNeedUpdate(String token,String username,String secret){
        Date expertsAt =null;
        try {
            Algorithm algorithm = Algorithm.HMAC256(secret);
            JWTVerifier verifier = JWT.require(algorithm).withClaim("username", username).build();
            expertsAt = verifier.verify(token).getExpiresAt();
        }catch (Exception e){
            throw new ApiException("token非法无效");
        }
        //如果剩余过期时间少于过期时常的一半时 需要更新
        return (expertsAt.getTime()-System.currentTimeMillis()) < NEED_UPDATE_TIME;
    }

    /**
@@ -127,4 +153,30 @@
    }


    /**
     *
     * @param response
     * @param code
     * @param errorMsg
     */
    public static void responseError(ServletResponse response, String errorMsg) {
        HttpServletResponse httpServletResponse = (HttpServletResponse) response;
        // issues/I4YH95浏览器显示乱码问题
        httpServletResponse.setHeader("Content-type", "text/html;charset=UTF-8");
        CommonResult jsonResult = CommonResult.failed(errorMsg);
        OutputStream os = null;
        try {
            os = httpServletResponse.getOutputStream();
            httpServletResponse.setCharacterEncoding("UTF-8");
         //   httpServletResponse.setStatus(code);
            os.write(new ObjectMapper().writeValueAsString(jsonResult).getBytes("UTF-8"));
            os.flush();
            os.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }



}