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Spring Boot-2.3.10，Spring Cloud Gcp：1.2.8

我正在尝试从 GC 存储访问特定的图像模式 **(/re​​sources/images/specific_folder/****)。为此，我编写了资源处理程序，如下所示：

@Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        log.info("Setting the resource location {}", gcStorageLocation);
        registry.addResourceHandler("/resources/images/specific_folder/**").addResourceLocations("gs:bucket_name/storage/images/specific_folder/").setCachePeriod(3600).resourceChain(true)
                .addResolver(new GcStorageResolver());
    }

GcStorageResolver.java 扩展 AbstractResourceResolver.java

@Override
    protected Resource resolveResourceInternal(@Nullable HttpServletRequest request, String requestPath, List<? extends Resource> locations,
            ResourceResolverChain chain) {
        log.info("resolveResourceInternal called for request: {}, requestPath: {}", request.getRequestURL(), requestPath);
        return getResource(requestPath, request, locations);
    }

我验证了一个有效的 GoogleStorageResource 与凭据一起返回。但是在弹簧链的某个地方，我收到以下错误：

2021-06-25 15:40:23.366 错误 4676 --- [nio-8080-exec-1] oaccC[.[.[.[dispatcherServlet] 175：Servlet.service() 用于 servlet [dispatcherServlet] 的上下文与路径[] 抛出异常 [请求处理失败；嵌套异常是 com.google.cloud.storage.StorageException：解析令牌刷新响应时出错。未找到预期值 access_token。] 根本原因

java.io.IOException：解析令牌刷新响应时出错。未找到预期值 access_token。在 com.google.auth.oauth2.OAuth2Utils.validateString(OAuth2Utils.java:113) ~[google-auth-library-oauth2-http-0.22.1.jar:?] 在 com.google.auth.oauth2.ServiceAccountCredentials。 refreshAccessToken(ServiceAccountCredentials.java:449) ~[google-auth-library-oauth2-http-0.22.1.jar:?] at com.google.auth.oauth2.OAuth2Credentials.refresh(OAuth2Credentials.java:157) ~[google -auth-library-oauth2-http-0.22.1.jar:?] 在 com.google.auth.oauth2.OAuth2Credentials.getRequestMetadata(OAuth2Credentials.java:145) ~[google-auth-library-oauth2-http-0.22。 1.jar:?] 在 com.google.auth.oauth2.ServiceAccountCredentials.getRequestMetadata(ServiceAccountCredentials.java:603) ~[google-auth-library-oauth2-http-0.22.1.jar:?] 在 com.google。 auth.http.HttpCredentialsAdapter。

不知道这里发生了什么。任何指针？

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