问题

FileInputStream serviceAccount =
    new FileInputStream("push-manager-app/src/main/resources/serviceAccountKey.json");
FirebaseOptions options = new FirebaseOptions.Builder()
                .setCredentials(GoogleCredentials.fromStream(serviceAccount))
                .setDatabaseUrl("https://test1-use.firebaseio.com")
                .build();
FirebaseApp.initializeApp(options);

上述的 Firebase 连接器代码工作正常。但在 openshift 环境中，我不能将 serviceAccountKey.json 提交到资源中，因为它在不同的环境中会有所不同。我可以从每个环境的 openshift 配置映射中获取它作为 String。

为了运行这段代码，我需要将 String 转换为 FileInputStream。我不确定如何做。我有一个变通方法，可以读取 String，生成文件并使用它。但我希望使用正确的方法。我检查了 Firebase API 的其他选项，但它甚至无法处理 InputStream。

<details>
<summary>英文:</summary>

FileInputStream serviceAccount =
new FileInputStream("push-manager-app/src/main/resources/serviceAccountKey.json");
FirebaseOptions options = new FirebaseOptions.Builder()
.setCredentials(GoogleCredentials.fromStream(serviceAccount))
.setDatabaseUrl("https://test1-use.firebaseio.com")
.build();
FirebaseApp.initializeApp(options);

The above code for `Firebase` connector is working fine. But in `openshift` environment I can't commit `serviceAccountKey.json` in resources as it will be different for different environments. I can get it as `String` from `openshift` configmap in each environment.

For running this block of code I need to convert `String` in `FileInputStream`. I'm not sure how to do it. I have one workaround where I can read `String`, generate file and use it. But I wanted to use the right way. I checked `Firebase` API for other options but it can't even handle `InputStream`.


</details>


# 答案1
**得分**: 1

String json = "xxxxxx";
InputStream stream = new ByteArrayInputStream(json.getBytes(StandardCharsets.UTF_8));

<details>
<summary>英文:</summary>

String json = "xxxxxx";
InputStream stream = new ByteArrayInputStream(json.getBytes(StandardCharsets.UTF_8));

</details>



# 答案2
**得分**: 0

```java
private static InputStream getFile() {
    return FireBaseService.class.getResourceAsStream("/dataCred.json");
}
private static final String DATABASE_URL = "DATABASE_URL";

public static void initiainzeSDK() {
    try {
        FirebaseOptions options = new FirebaseOptions.Builder()
                .setCredentials(GoogleCredentials.fromStream(getFile()))
                .setDatabaseUrl(DATABASE_URL)
                .build();

        FirebaseApp.initializeApp(options);
        // Initialize the default app

    } catch (IOException e) {
        System.out.println(e.getMessage());
    }
}

make sure ur json file not wrong syntax

private static InputStream getFile() {
    return FireBaseService.class.getResourceAsStream("/dataCred.json");
}
private static final String DATABASE_URL = "DATABASE_URL";

public static void initiainzeSDK() {
    
   try {
        FirebaseOptions options = new FirebaseOptions.Builder()
                .setCredentials(GoogleCredentials.fromStream(getFile()))
                .setDatabaseUrl(DATABASE_URL)
                .build();

    FirebaseApp.initializeApp(options);
    // Initialize the default app

    } catch (IOException e) {
       System.out.println(e.getMessage());
   }
}