[英]How to read a JSON file from Assests folder instead of URL in Volley
I have a JSON file in the assets
folder. 我在
assets
文件夹中有一个JSON文件。 I'd like to read this file and do something with the data. 我想读取此文件并对数据进行处理。 How can I use Volley for this?
我该如何使用Volley? I can't find anything like this.
我找不到这样的东西。 I don't want to use more libraries like gson or jackson.
我不想使用更多的库,例如gson或jackson。
Can I handle it with just Volley? 我可以只用Volley吗?
Thanks a Lot. 非常感谢。
You dont need volley to read a Json file from the asset directory. 您不需要排球即可从资产目录读取Json文件。
In my case, I load an array of Json from the file into my string "filePath". 就我而言,我将文件中的Json数组加载到字符串“ filePath”中。
final String filePath = readFromAsset(act, "json_to_load.json"); //act is my current activity
try {
JSONArray obj = new JSONArray(filePath);
for (int i = 0; i < obj.length(); i++) {
JSONObject jo = obj.getJSONObject(i);
// do stuff
}
} catch (JSONException e) {
e.printStackTrace();
}
In my utils file : 在我的utils文件中:
private static String readFromAsset(Activity act, String fileName)
{
String text = "";
try {
InputStream is = act.getAssets().open(fileName);
int size = is.available();
// Read the entire asset into a local byte buffer.
byte[] buffer = new byte[size];
is.read(buffer);
is.close();
text = new String(buffer);
} catch (IOException e) {
e.printStackTrace();
}
return text;
}
To be able to use it your have to import the package "org.json;" 为了能够使用它,您必须导入包“ org.json;”。 .
。
Hope it helps ! 希望能帮助到你 !
Volley本身无法解析JSON,因此您需要使用GSON或...
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