如何在Android Studio仿真中找到写入json文件的路径？

Question

I am trying use Android Studio emulation to produce a json in my apps. Is there a way to locate the directory and set it as path and implement it in the following?

    ......
    DIRECTORY directory = createDummySchool();
    ObjectMapper mapper = new ObjectMapper();

    try {

     mapper.writeValue(new File(filepath? + "sample.json"), directory);

    }catch (IOException e) {
        e.printStackTrace();}
    .....

Answer 1

well it depends where you want to write your file in, Internal or external memory.

you can always write information in internal memory which can be accessible by your app but to write on external memory you will require permission like

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

To save file internally you can use this

getFilesDir();
String filename = "myfile";
File file = new File(context.getFilesDir(), filename);

String string = "Hello world!";

FileOutputStream outputStream;

try {
outputStream = openFileOutput(filename, Context.MODE_PRIVATE);
outputStream.write(string.getBytes());
outputStream.close();
} catch (Exception e) {
e.printStackTrace();
}

refer this for more information, this is the best way and should be the first place where you should be looking, :)