How to upload a file using webdriver

Solution: Dealing with Dialog Box:

magic 1:

driver.findElementByLinkText("Upload Files").click();

driver.setLogLevel(Level.ALL);

System.out.println(driver.getCurrentUrl());

WebElement element = driver.findElement(By.xpath("//input[@name='file_1']"));

LocalFileDetector detector = new LocalFileDetector();

String path = "D://test66T.txt";

File f = detector.getLocalFile(path);

((RemoteWebElement)element).setFileDetector(detector);

element.sendKeys(f.getAbsolutePath());

driver.findElementByXPath("//html/body/div[9]/div[1]/a/span").click();