Spring boot-从jar内部访问firebase admin sdk凭据json文件

Question

我有一个Java Spring Boot后端应用程序，它使用Firebase Admin SDK。在FirebaseConfig的init方法中，我必须提供FirebaseOptions的凭据文件，

@PostConstruct
public void init() throws IOException {
    ClassLoader classLoader=Thread.currentThread().getContextClassLoader();
    FileInputStream refreshToken = new FileInputStream("src/main/resources/progresee-fa969-firebase-adminsdk-3vip2-d80bf340b7.json");
    FirebaseOptions options = new FirebaseOptions.Builder()
        .setCredentials(GoogleCredentials.fromStream(refreshToken))
        .setDatabaseUrl(dbUrl)
        .build();
    FirebaseApp.initializeApp(options);
}

当我在本地运行时，一切都很好，但是当我构建jar文件并上传到服务器托管服务（AWS）时，我得到一个FileNot找到错误-

Caused by: java.io.FileNotFoundException: /progresee-fa969-firebase-adminsdk-3vip2-d80bf340b7.json (No such file or directory)
at java.io.FileInputStream.open0(Native Method) ~[na:1.8.0_222]
at java.io.FileInputStream.open(FileInputStream.java:195) ~[na:1.8.0_222]
at java.io.FileInputStream.<init>(FileInputStream.java:138) ~[na:1.8.0_222]
at java.io.FileInputStream.<init>(FileInputStream.java:93) ~[na:1.8.0_222]
at com.progresee.app.firebase.FirebaseConfig.init(FirebaseConfig.java:55) ~[classes!/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_222]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_222]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_222]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_222]
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:363) ~[spring-beans-5.1.9.RELEASE.jar!/:5.1.9.RELEASE]
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:307) ~[spring-beans-5.1.9.RELEASE.jar!/:5.1.9.RELEASE]
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:136) ~[spring-beans-5.1.9.RELEASE.jar!/:5.1.9.RELEASE]
... 74 common frames omitted

我试图将文件上传到s3 bucket或firebase，并通过URL访问它，但这种方式在本地甚至不起作用。

陈，先谢谢你。

Answer 1

要在胖罐子中添加JSON配置，请遵循以下步骤。

>

将JSON文件放入src/main/Resources

将资源加载器注入服务

@Autowired
ResourceLoader resourceLoader;

获取资源的inputstream，而不是获取文件

Resource resource = resourceLoader.getResource("classpath:firebaseFile.json");    
InputStream inputStream = resource.getInputStream();

在firebase选项中传递inputstream