Merge pull request #29 from china-wangyu/fix/avatarUrl

fix:修复用户头像为null的问题

Author: colorful3

src/main/java/io/github/talelin/merak/common/interceptor/AuthorizeVerifyResolverImpl.java

@@ -125,7 +125,9 @@ private boolean getClaim(Map<String, Claim> claims) {
             throw new NotFoundException("user is not found", 10021);
         }
         String avatarUrl;
-        if (user.getAvatar().startsWith("http")) {
+        if (user.getAvatar() == null) {
+            avatarUrl = null;
+        } else if (user.getAvatar().startsWith("http")) {
             avatarUrl = user.getAvatar();
         } else {
             avatarUrl = domain + servePath.split("/")[0] + "/" + user.getAvatar();