Android: open failed: ENOENT (Aucun fichier ou répertoire)

Salut, je suis en train de lire excel à partir d'actifs et a voulu le convertir en JSON, Mais je reçois le d'erreur: échec de l'ouverture:ENOENT(Aucun fichier ou répertoire), recherchées de nombreuses questions, mais ne pouvait pas trouver la solution
Ci-dessous mon code

public void readXlsFileAndConvertToJsonObject() {
JSONArray jsonArray = new JSONArray();
JSONArray mainJsonArray = new JSONArray();
try {
File file = new File("file:///android_asset/filters.xls");
FileInputStream fis = new FileInputStream(file);
//final FileInputStream file = new FileInputStream(new File("filters.xls"));
int count = 0;
//Get the workbook instance for XLS file
HSSFWorkbook workbook = new HSSFWorkbook(fis);
//Get first sheet from the workbook
HSSFSheet sheet = workbook.getSheetAt(0);
//Iterate through each rows from first sheet
Iterator < Row > rowIterator = sheet.iterator();
while (rowIterator.hasNext()) {
Row row = rowIterator.next();
//LOGGER.info("count is " + count);
if (count == 0 || count == 1) {} else {
try {
JSONObject jsonMaterialObject = new JSONObject();
//Name
jsonMaterialObject.put("name", row.getCell(0)
.toString());
//thick ness
jsonMaterialObject.put("thickness", row.getCell(4)
.toString());
//rating_1
jsonMaterialObject.put("rating_1", row.getCell(5)
.toString());
//rating_2
jsonMaterialObject.put("rating_2", row.getCell(6)
.toString());
jsonMaterialObject.put("low_frequency_rank", row
.getCell(7).toString());
jsonMaterialObject.put("medium_frequency_rank", row
.getCell(8).toString());
jsonMaterialObject.put("high_frequency_rank", row
.getCell(9).toString());
//Add file size
final File dir = new File("file:///android_asset/filename");
final File[] ListFiles = dir.listFiles();
boolean found = false;
if (ListFiles.length == 0) {} else {
for (File aFile: ListFiles) {
System.out.println("Afile Name " + aFile.getName());
System.out.println("A file from json  Name " + row.getCell(0).toString());
if (aFile.getName().equalsIgnoreCase(
row.getCell(0).toString() + ".pdf")) {
jsonMaterialObject.put("fileSize", truncateDecimal(aFile.length() / 1024, 2));
found = true;
}
if (found) {
break;
}
}
jsonMaterialObject.put("pdfFileName", row
.getCell(0).toString() + ".pdf");
}
jsonArray.put(jsonMaterialObject);
} catch (JSONException e) {
//TODO Auto-generated catch block
e.printStackTrace();
}
}
count++;
}
((Closeable) file).close();
} catch (FileNotFoundException e) {} catch (IOException e) {}
createMaterialJson(jsonArray.toString(), "finalfile.json");
}

Je l'ai mentionné que les autorisations ci-dessous

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

Ci-dessous est ma Trace

11-25 12:32:35.535: I/System.out(20019): Exception accured in readXlsFileAndConvertToJsonObject /file:/android_asset/filters.xls: open failed: ENOENT (No such file or directory)

OriginalL'auteur teekib | 2014-11-25