!36 解决token为null时抛空指针异常的问题

Merge pull request !36 from 太空眼睛/tkyj-jwt

src/main/java/com/youlai/boot/core/security/token/JwtTokenManager.java

@@ -15,6 +15,7 @@ import com.youlai.boot.common.exception.BusinessException;
 import com.youlai.boot.common.result.ResultCode;
 import com.youlai.boot.config.property.SecurityProperties;
 import com.youlai.boot.core.security.model.AuthenticationToken;
+import org.apache.commons.lang3.StringUtils;
 import com.youlai.boot.core.security.model.SysUserDetails;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.data.redis.core.RedisTemplate;
@@ -166,6 +167,10 @@ public class JwtTokenManager implements TokenManager {
      */
     @Override
     public void invalidateToken(String token) {
+        if(StringUtils.isBlank(token)) {
+            return;
+        }
+
         if (token.startsWith(SecurityConstants.BEARER_TOKEN_PREFIX)) {
             token = token.substring(SecurityConstants.BEARER_TOKEN_PREFIX.length());
         }