Java File to Byte Array getBytesFromFile(File file)

Description

Retorna array de bytes

License

Open Source License

Parameter

Parameter	Description
file	a parameter

Exception

Parameter	Description
IOException	an exception

Declaration

public static byte[] getBytesFromFile(File file) throws IOException 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.File;
import java.io.FileInputStream;

import java.io.IOException;
import java.io.InputStream;

public class Main {
    /**/*from  w  w  w. j  a  v a 2 s  . c o  m*/
     * Retorna array de bytes
     * @param file
     * @return
     * @throws IOException
     */
    public static byte[] getBytesFromFile(File file) throws IOException {
        InputStream is = new FileInputStream(file);

        // Get the size of the file
        long length = file.length();

        if (length > Integer.MAX_VALUE) {
            // File is too large
        }

        // Create the byte array to hold the data
        byte[] bytes = new byte[(int) length];

        // Read in the bytes
        int offset = 0;
        int numRead = 0;
        while (offset < bytes.length
                && (numRead = is.read(bytes, offset, bytes.length - offset)) >= 0) {
            offset += numRead;
        }

        // Ensure all the bytes have been read in
        if (offset < bytes.length) {
            throw new IOException("Could not completely read file "
                    + file.getName());
        }

        // Close the input stream and return bytes
        is.close();
        return bytes;
    }
}

Related

1. getBytes(File file)
2. getBytes(File file)
3. getBytesFromFile(File f)
4. getBytesFromFile(File file)
5. getBytesFromFile(File file)
6. getBytesFromFile(File file)
7. getBytesFromFile(File file)
8. getBytesFromFile(File file)
9. getBytesFromFile(File file)