Convert File to Byte Array

Maven Dependencies

        
<dependency>
    <groupId>commons-io</groupId>
    <artifactId>commons-io</artifactId>
    <version>1.4</version>
</dependency>

Java Code

import org.apache.commons.io.FileUtils;
...
...
...
    byte[] byteArray;
    try {
        byteArray = FileUtils.readFileToByteArray(new File("c:/temp/test.png"));
    } catch (IOException ex) {
        LOG.error("{}", ex);
    }