How to load an HTML document file from the local hard disk with WebDriver in Java?

If you want to load an HTML document file from the local hard disk with WebDriver, you can use the "file" URI format to identify the local file as shown in the example program below:

// LoadLocalHtmlFile.java
// Copyright (c) FYIcenter.com 
import org.openqa.selenium.*;
import java.nio.file.*;

public class LoadLocalHtmlFile {
   public static void main(String[] args) {
      WebDriver driver = WebDriverLoader.load(args[0]);
    JavascriptExecutor executor = (JavascriptExecutor) driver;

      String url = Paths.get(args[1]).toUri().toString();
      System.out.println(url);
    driver.get(url);
    
    WebElement html = driver.findElement(By.tagName("html"));
    printTagWithAttributes(html,"",executor);
      driver.quit();
   }

   public static void printTagWithAttributes(WebElement tag, String space, 
      JavascriptExecutor executor) {
      String script = "var items = {};"
         + " for (index = 0; index < arguments[0].attributes.length; ++index)"
         + " { items[arguments[0].attributes[index].name] = arguments[0].attributes[index].value };"
         + " return items;";
    Object attributes = executor.executeScript(script,tag);

    java.util.List<WebElement> list = tag.findElements(By.xpath("./*"));
    if (list==null) {
     System.out.println(space+"<"+tag.getTagName()+attributes+"/>");
    } else {
     System.out.println(space+"<"+tag.getTagName()+attributes+">");
         for (WebElement child: list) {
      printTagWithAttributes(child,space+"  ",executor);
         }
     System.out.println(space+"</"+tag.getTagName()+">");
    }
   }
}

To test the above program, you can use the following HTML file, Hello.html:

<html>
  <head>
    <title>Hello</title>
  </head>
  <body bgcolor="#ffeeee">
    <p>Hello world!</p>    
  </body>
</html>

Compile and run the program on Hello.html:

C:\fyicenter> javac -classpath \
   .;\fyicenter\selenium\java\client-combined-3.141.59.jar \
   LoadLocalHtmlFile.java

C:\fyicenter> java -classpath \
   .;\fyicenter\selenium\java\client-combined-3.141.59.jar;\
   \fyicenter\selenium\java\libs\guava-25.0-jre.jar;\
   \fyicenter\selenium\java\libs\okhttp-3.11.0.jar;\
   \fyicenter\selenium\java\libs\okio-1.14.0.jar;\
   \fyicenter\selenium\java\libs\commons-exec-1.3.jar \
   LoadLocalHtmlFile Chrome Hello.html

file:///C:/fyicenter/Hello.html
<html{}>
  <head{}>
    <title{}>
    </title>
  </head>
  <body{bgcolor=#ffeeee}>
    <p{}>
    </p>
  </body>
</html>

The output shows that we loaded the local HTML file correctly.

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