1. package com.atguigu.commonutils;
    3. import io.jsonwebtoken.Claims;
    4. import io.jsonwebtoken.Jws;
    5. import io.jsonwebtoken.Jwts;
    6. import io.jsonwebtoken.SignatureAlgorithm;
    7. import org.springframework.http.server.reactive.ServerHttpRequest;
    8. import org.springframework.util.StringUtils;
    10. import javax.servlet.http.HttpServletRequest;
    11. import java.util.Date;
    13. /**
    14.  * @author helen
    15.  * @since 2019/10/16
    16.  */
    17. public class JwtUtils {
    18.     //指定过期时间
    19.     public static final long EXPIRE = 1000 * 60 * 60 * 24;
    20.     //指定签名
    21.     public static final String APP_SECRET = "ukc8BDbRigUDaY6pZFfWus2jZWLPHO";
    23.     //获取token
    24.     public static String getJwtToken(String id, String nickname){
    26.         String JwtToken = Jwts.builder()
    27.                 .setHeaderParam("typ", "JWT")
    28.                 .setHeaderParam("alg", "HS256")
    29.                 .setSubject("guli-user")
    30.                 .setIssuedAt(new Date())
    31.                 .setExpiration(new Date(System.currentTimeMillis() + EXPIRE))
    32.                 .claim("id", id)
    33.                 .claim("nickname", nickname)
    34.                 .signWith(SignatureAlgorithm.HS256, APP_SECRET)
    35.                 .compact();
    37.         return JwtToken;
    38.     }
    40.     /**
    41.      * 判断token是否存在与有效
    42.      * @param jwtToken
    43.      * @return
    44.      */
    45.     public static boolean checkToken(String jwtToken) {
    46.         if(StringUtils.isEmpty(jwtToken)) return false;
    47.         try {
    48.             Jwts.parser().setSigningKey(APP_SECRET).parseClaimsJws(jwtToken);
    49.         } catch (Exception e) {
    50.             e.printStackTrace();
    51.             return false;
    52.         }
    53.         return true;
    54.     }
    56.     /**
    57.      * 判断token是否存在与有效
    58.      * @param request
    59.      * @return
    60.      */
    61.     public static boolean checkToken(HttpServletRequest request) {
    62.         try {
    63.             String jwtToken = request.getHeader("token");
    64.             if(StringUtils.isEmpty(jwtToken)) return false;
    65.             Jwts.parser().setSigningKey(APP_SECRET).parseClaimsJws(jwtToken);
    66.         } catch (Exception e) {
    67.             e.printStackTrace();
    68.             return false;
    69.         }
    70.         return true;
    71.     }
    73.     /**
    74.      * 根据token获取会员id
    75.      * @param request
    76.      * @return
    77.      */
    78.     public static String getMemberIdByJwtToken(HttpServletRequest request) {
    79.         String jwtToken = request.getHeader("token");
    80.         if(StringUtils.isEmpty(jwtToken)) return "";
    81.         Jws<Claims> claimsJws = Jwts.parser().setSigningKey(APP_SECRET).parseClaimsJws(jwtToken);
    82.         Claims claims = claimsJws.getBody();
    83.         return (String)claims.get("id");
    84.     }
    85. }