Android，如何从原始文件夹中的Json读取

I'm trying to open a Json file which is in the raw folder inside res My file structure

我正在尝试打开一个Json文件,它位于res我文件结构中的原始文件夹中

But it fails with every method I have tried, I just need the string since I can parse Json Strings already.

但是我尝试的每一种方法都失败了,我只需要字符串,因为我已经可以解析Json Strings了。

This is my Json reader

这是我的Json读者

public class Parser extends Activity {
    public String getStringFromJson(String path) {
        StringBuffer sb = new StringBuffer();
        BufferedReader br = null;
        try {
            br = new BufferedReader(new InputStreamReader(getAssets().open(path)));
            String temp;
            while ((temp = br.readLine()) != null)
                sb.append(temp);
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                br.close(); // stop reading
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return sb.toString();
    }
}

It fails in the line:

它失败了:

br = new BufferedReader(new InputStreamReader(getAssets().open(path)));

br = new BufferedReader(new InputStreamReader(getAssets()。open(path)));

And this is what logcat said:

这就是logcat所说的:

02-03 10:44:13.440 2374-2374/com.example.ealcazar.kolibry E/AndroidRuntime: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.ealcazar.kolibry/com.example.ealcazar.kolibry.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void java.io.BufferedReader.close()' on a null object reference

is there an easier way to read a Json? what Path should I use when trying to access my file in the RAW folder?

有没有更简单的方法来阅读Json?尝试访问RAW文件夹中的文件时,我应该使用什么路径?

Thank you very much.

非常感谢你。

1 个解决方案

#1

Replace these line of code

替换这些代码行

br = new BufferedReader(new InputStreamReader(getAssets().open(path)));

With these

br = new BufferedReader(new InputStreamReader(getResources().openRawResource(R.raw.json));//Here json is the name of the file which is placed inside the RAW folder in yours resource