Question

I specify these file address data/data/org.com.Cache/files/cacheImplementationOutput but I got the following error message…..

java.io.IOException: Couldn't open /data/data/org.com.Cache/files/cacheImplementationOutput

Answer 1

mention the method name as fetch(url, outputXml);

and read the xml content as….
FileInputStream fis = openFileInput(outputXml);

public byte[] readBytes(InputStream inputStream, String outputXml) {
try {
ByteArrayOutputStream byteBuffer = new ByteArrayOutputStream();
int bufferSize = 1024;
byte[] buffer = new byte[bufferSize];
OutputStreamWriter fout = new OutputStreamWriter(openFileOutput(
outputXml,0));
int len = 0;
while ((len = inputStream.read(buffer)) != -1) {
byteBuffer.write(buffer, 0, len);
}
fout.write(new String (byteBuffer.toByteArray()));
fout.close();
return byteBuffer.toByteArray();
}catch (NullPointerException e) {
e.printStackTrace();
}
catch (Exception e) {
}
return null;

}

public void fetch(URL url, String outputXml) {
    try {

        InputStream myInputStream = null;
        StringBuilder sb = new StringBuilder();

        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setDoOutput(true);
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "application/xml");
        OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
        wr.write(sb.toString());
        wr.flush();
        wr.close();
        myInputStream = conn.getInputStream();
        readBytes(myInputStream, outputXml);
        System.out.println("writing is done");
    }catch (NullPointerException e) {
        e.printStackTrace();
    } 
    catch (Exception e) {
    }

}