我正在使用firebase下载文件。下面的代码下载文件但是下载到根目录。我想要的是在根目录中创建一个文件夹并将下载的文件存储在其中。
FirebaseStorage storage = FirebaseStorage.getInstance();
StorageReference storageRef = storage.getReferenceFromUrl("gs://fir-896a6.appspot.com");
StorageReference islandRef = storageRef.child(fileName);
File localFile = null;
try {
localFile = new File(Environment.getExternalStorageDirectory(), fileName);
} catch (Exception e) {
e.printStackTrace();
}
islandRef.getFile(localFile);
我尝试过使用
localFile = new File(Environment.getExternalStorageDirectory() + "/Student Portal/", fileName);
localFile.mkdirs();
它创建文件夹Student Portal但不是下载文件并将其保存在文件夹中，而是在名为fileName的Student Portal文件夹中创建文件夹并抛出错误
E/FileDownloadTask: Exception occurred during file download
java.io.FileNotFoundException: /storage/emulated/0/Student Portal/proposal-1.docx: open failed: EISDIR (Is a directory)
at libcore.io.IoBridge.open(IoBridge.java:456)
at java.io.FileOutputStream.<init>(FileOutputStream.java:87)
at java.io.FileOutputStream.<init>(FileOutputStream.java:72)
at com.google.firebase.storage.FileDownloadTask.run(Unknown Source)
at com.google.firebase.storage.StorageTask$5.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
Caused by: android.system.ErrnoException: open failed: EISDIR (Is a directory)
at libcore.io.Posix.open(Native Method)
at libcore.io.BlockGuardOs.open(BlockGuardOs.java:186)
at libcore.io.IoBridge.open(IoBridge.java:442)
at java.io.FileOutputStream.<init>(FileOutputStream.java:87)
at java.io.FileOutputStream.<init>(FileOutputStream.java:72)
at com.google.firebase.storage.FileDownloadTask.run(Unknown Source)
at com.google.firebase.storage.StorageTask$5.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
07-13 21:14:39.217 14894-15750/com.horngmail.invisible.firebase E/StorageException: StorageException has occurred.
An unknown error occurred, please check the HTTP result code and inner exception for server response.
Code: -13000 HttpResult: 200
07-13 21:14:39.217 14894-15750/com.horngmail.invisible.firebase E/StorageException: /storage/emulated/0/Student Portal/proposal-1.docx: open failed: EISDIR (Is a directory)
java.io.FileNotFoundException: /storage/emulated/0/Student Portal/proposal-1.docx: open failed: EISDIR (Is a directory)
at libcore.io.IoBridge.open(IoBridge.java:456)
at java.io.FileOutputStream.<init>(FileOutputStream.java:87)
at java.io.FileOutputStream.<init>(FileOutputStream.java:72)
at com.google.firebase.storage.FileDownloadTask.run(Unknown Source)
at com.google.firebase.storage.StorageTask$5.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
Caused by: android.system.ErrnoException: open failed: EISDIR (Is a directory)
at libcore.io.Posix.open(Native Method)
at libcore.io.BlockGuardOs.open(BlockGuardOs.java:186)
at libcore.io.IoBridge.open(IoBridge.java:442)
答案 0 :(得分：1)
localFile.mkdirs();
更改为
localFile.getParentFile().mkdirs();
首先使用fileName删除该目录。