\ key.p12：打开失败：ENOENT（没有这样的文件或目录） [英] .\key.p12: open failed: ENOENT (No such file or directory)

问题描述

在我的Andr​​oid应用程序，我访问了谷歌云存储。我已经生成私钥 xxxxxxxkey.p12 。我已经把我的资产文件夹中的密钥文件。但是，在运行项目时，它是不开放的key.p12文件。我试图把它的资产文件夹之外，还是没有结果。

In my android application I'm accessing the Google cloud storage . I have generated the private key xxxxxxxkey.p12 .I have put my key file in assets folder . But while running the project it is not opening the key.p12 file . I have tried putting it outside the assets folder , still no result.

     httpTransport = AndroidHttp.newCompatibleTransport(); 
            AssetManager am = getAssets();
            InputStream inputStream = am.open("xxxxxxxxxxKey.p12");
            File file = createFileFromInputStream(inputStream);

       GoogleCredential credential = new GoogleCredential.Builder()
                            .setTransport(httpTransport)
                            .setJsonFactory(JSON_FACTORY)
                            .setServiceAccountId([e-mail]")
                            .setServiceAccountScopes(Collections.singleton(STORAGE_SCOPE))
                            .setServiceAccountPrivateKeyFromP12File(file).build();

createFileFromInputStream（）

private File createFileFromInputStream(InputStream inputStream) {

        try {
            File f = new File("download/MyKey.p12");
            OutputStream outputStream = new FileOutputStream(f);
            byte buffer[] = new byte[1024];
            int length = 0;

            while ((length = inputStream.read(buffer)) > 0) {
                outputStream.write(buffer, 0, length);
            }

            outputStream.close();
            inputStream.close();

            return f;
        } catch (IOException e) {
            // Logging exception
        }

        return null;
    }

我已经做了在Java project.What同样产生差别，是由于Android呢？或文件路径位置不正确？

I've done the same in java project.What makes the difference, is it because of android ? or the path to the file location is incorrect?

推荐答案

经过一番挣扎后，我有我的回答，非常感谢您的支持。竖起大拇指！

After some struggle I have got my answer, Thanks a lot for your support. Thumbs up!

文件可通过使用检索 AssetManager ，然后我们也可以把它作为一个原始资源

File can be retrieved using using AssetManager and also we can get it as a raw resource

使用AssetManager

        AssetManager am = getAssets();
        InputStream inputStream = am.open("xxxxxxxxxxKey.p12");
        File file = createFileFromInputStream(inputStream);

作为原始资源，把文件中的原始文件夹中res目录

As a raw resource , put the file in raw folder inside res directory

        InputStream ins = getResources().openRawResource(R.raw.keyfile);
        File file = createFileFromInputStream(ins);

在写输出文件，你必须指定你的密钥文件实际上属于，在我的情况，我采用了android，我创建文件夹内的内部存储里面的文件（模拟器/设备）的匙扣/ KeyFile时

private File createFileFromInputStream(InputStream inputStream) {

        String path = "";

        File file = new File(Environment.getExternalStorageDirectory(),
                "KeyHolder/KeyFile/");
        if (!file.exists()) {
            if (!file.mkdirs())
                Log.d("KeyHolder", "Folder not created");
            else
                Log.d("KeyHolder", "Folder created");
        } else
            Log.d("KeyHolder", "Folder present");

       path = file.getAbsolutePath();

        try {
            File f = new File(path+"/MyKey");
            OutputStream outputStream = new FileOutputStream(f);
            byte buffer[] = new byte[1024];
            int length = 0;

            while ((length = inputStream.read(buffer)) > 0) {
                outputStream.write(buffer, 0, length);
            }

            outputStream.close();
            inputStream.close();

            return f;
        } catch (IOException e) {
            // Logging exception
            e.printStackTrace();
        }

        return null;
    }

这就是它！

and that's it !

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