我創建了一個 Spring Boot 應用程式，當我將它作為 Java 應用程式運行時，它可以正常讀取文本檔案，但是當我想從中生成 .jar 檔案時，它向我顯示一個錯誤，表明該檔案不存在
java.io.FileNotFoundException: ./serviceAccountKey.json (No such file or directory)
我讀取檔案的方法是
@PostConstruct
public void Initialization() {
FileInputStream serviceAccount;
try {
serviceAccount = new FileInputStream("./serviceAccountKey.json");
FirebaseOptions options = new FirebaseOptions.Builder()
.setCredentials(GoogleCredentials.fromStream(serviceAccount)).build();
FirebaseApp.initializeApp(options);
} catch (Exception e) {
System.out.println("something went wrong in firebase initialization ...");
System.out.println(e);
}
}
我的專案結構如圖所示
uj5u.com熱心網友回復：
在春天，您必須將檔案放在src/main/resources目錄中，然后您可以使用@Value注釋讀取它。
class YourClass {
@Value("classpath:serviceAccountKey.json")
private Resource resource;
@PostConstruct
public void Initialization() {
try {
FirebaseOptions options = new FirebaseOptions.Builder()
.setCredentials(GoogleCredentials.fromStream(resource.getInputStream()))
.build();
FirebaseApp.initializeApp(options);
} catch (Exception e) {
System.out.println("something went wrong in firebase initialization ...");
System.out.println(e);
}
}
}
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