修改JwtUtil的部分方法

src/main/java/cn/celess/blog/util/JwtUtil.java

@@ -1,10 +1,10 @@
 package cn.celess.blog.util;
 
+import cn.celess.blog.enmu.ResponseEnum;
 import cn.celess.blog.entity.User;
-import io.jsonwebtoken.Claims;
-import io.jsonwebtoken.ExpiredJwtException;
-import io.jsonwebtoken.Jwts;
-import io.jsonwebtoken.SignatureAlgorithm;
+import cn.celess.blog.exception.MyException;
+import io.jsonwebtoken.*;
+import lombok.extern.log4j.Log4j2;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
 
@@ -19,6 +19,7 @@ import java.util.Map;
  * @Description: JWT工具类
  */
 @Component
+@Log4j2
 public class JwtUtil {
     private static final String CLAIM_KEY_USERNAME = "sub";
 
@@ -48,46 +49,63 @@ public class JwtUtil {
                 .compact();
     }
 
-    public Boolean validateToken(String token, User user) {
-        String username = getUsernameFromToken(token);
-
-        return (username.equals(user.getEmail()) && !isTokenExpired(token));
+    public String updateTokenDate(String token) {
+        Claims claims = Jwts.parser().setSigningKey(SECRET).parseClaimsJws(token).getBody();
+        return Jwts.builder()
+                .setClaims(claims)
+                .setExpiration(new Date(claims.getExpiration().getTime() + EXPIRATION_SHORT_TIME))
+                .signWith(SignatureAlgorithm.HS512, SECRET)
+                .compact();
     }
 
     /**
      * 获取token是否过期
      */
     public Boolean isTokenExpired(String token) {
-        try {
-            Date expiration = getExpirationDateFromToken(token);
-            return expiration.before(new Date());
-        } catch (ExpiredJwtException e) {
-            return true;
-        }
+        Date expiration = getExpirationDateFromToken(token);
+        return expiration == null || expiration.before(new Date());
     }
 
     /**
      * 根据token获取username
      */
     public String getUsernameFromToken(String token) {
-        return getClaimsFromToken(token).getSubject();
+        Claims claims = getClaimsFromToken(token);
+        return claims == null ? null : claims.getSubject();
     }
 
     /**
      * 获取token的过期时间
      */
     public Date getExpirationDateFromToken(String token) {
-        return getClaimsFromToken(token).getExpiration();
+        Claims claims = getClaimsFromToken(token);
+        return claims == null ? null : claims.getExpiration();
     }
 
     /**
      * 解析JWT
      */
     private Claims getClaimsFromToken(String token) {
-        Claims claims = Jwts.parser()
-                .setSigningKey(SECRET)
-                .parseClaimsJws(token)
-                .getBody();
+        Claims claims = null;
+        try {
+            claims = Jwts.parser()
+                    .setSigningKey(SECRET)
+                    .parseClaimsJws(token)
+                    .getBody();
+        } catch (ExpiredJwtException e) {
+            log.info("JWT令牌过期");
+        } catch (UnsupportedJwtException e) {
+            log.info("不支持的JWT令牌");
+            throw new MyException(ResponseEnum.JWT_NOT_SUPPORT);
+        } catch (MalformedJwtException e) {
+            log.info("JWT令牌格式错误");
+            throw new MyException(ResponseEnum.JWT_MALFORMED);
+        } catch (SignatureException e) {
+            log.info("JWT签名错误");
+            throw new MyException(ResponseEnum.JWT_SIGNATURE);
+        } catch (IllegalArgumentException e) {
+            log.debug("JWT非法参数");
+        }
         return claims;
     }