Create OneNote Document and Save to HTML - Java

Introduction

Aspose.Note for Java is a powerful library that allows developers to work with Microsoft OneNote files programmatically. In this tutorial, we will explore how to create a OneNote document and save it to HTML format using Aspose.Note for Java.

Prerequisites

Before we begin, ensure that you have the following:

1. Java Development Kit (JDK) installed on your system.
2. Aspose.Note for Java library. You can download it from here.
3. Basic knowledge of Java programming.

Import Packages

First, import the necessary packages to your Java project:

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.nio.file.Paths;
import com.aspose.note.CssSavingArgs;
import com.aspose.note.Document;
import com.aspose.note.FontFaceType;
import com.aspose.note.FontSavingArgs;
import com.aspose.note.HtmlSaveOptions;
import com.aspose.note.ICssSavingCallback;
import com.aspose.note.IFontSavingCallback;
import com.aspose.note.IImageSavingCallback;
import com.aspose.note.ImageSavingArgs;
import com.aspose.note.ResourceExportType;

Step 1: Create a OneNote Document Object

Document document = new Document("Path_to_your_sample_one_file");

This code initializes a Document object by loading a sample OneNote file.

Step 2: Save as HTML to Memory Stream

HtmlSaveOptions options = new HtmlSaveOptions();
options.setExportCss(ResourceExportType.ExportEmbedded);
options.setExportImages(ResourceExportType.ExportEmbedded);
options.setExportFonts(ResourceExportType.ExportEmbedded);
options.setFontFaceTypes(FontFaceType.Ttf);

ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
document.save(outputStream, options);

Here, we set up the HTML save options and save the document to a memory stream.

Step 3: Save as HTML with Resources in Separate Files

HtmlSaveOptions options = new HtmlSaveOptions();
options.setExportCss(ResourceExportType.ExportEmbedded);
options.setExportFonts(ResourceExportType.ExportEmbedded);
options.setExportImages(ResourceExportType.ExportEmbedded);

document.save("output_directory/document.html", options);

This step saves the document as HTML with resources like CSS, fonts, and images in separate files.

Step 4: Save as HTML to Memory Stream with Callbacks to Save Resources

Document document = new Document("Path_to_your_sample_one_file");

UserSavingCallbacks savingCallbacks = new UserSavingCallbacks();
savingCallbacks.setRootFolder("documentFolder");
savingCallbacks.setCssFolder("css");
savingCallbacks.setKeepCssStreamOpened(true);
savingCallbacks.setImagesFolder("images");
savingCallbacks.setFontsFolder("fonts");

HtmlSaveOptions options = new HtmlSaveOptions();
options.setFontFaceTypes(FontFaceType.Ttf);
options.setCssSavingCallback(savingCallbacks);
options.setImageSavingCallback(savingCallbacks);
options.setFontSavingCallback(savingCallbacks);
options.setExportCss(ResourceExportType.ExportEmbedded);
options.setExportImages(ResourceExportType.ExportEmbedded);
options.setExportFonts(ResourceExportType.ExportEmbedded);

File dir = new File(savingCallbacks.getRootFolder());
if (!dir.exists()) {
    dir.mkdir();
}

document.save(Paths.get(savingCallbacks.getRootFolder(), "document.html").toString(), options);

Here, we save the document as HTML to a memory stream using callbacks to handle resource saving.

Conclusion

Congratulations! You have learned how to create a OneNote document and save it to HTML format using Aspose.Note for Java. You can now integrate this functionality into your Java applications to work with OneNote files programmatically.

FAQ’s

Q1: Can I convert multiple OneNote documents to HTML in one go?

A1: Yes, you can loop through multiple documents and apply the saving process iteratively.

Q2: Does Aspose.Note for Java support other output formats besides HTML?

A2: Yes, Aspose.Note for Java supports various output formats including PDF, DOCX, and image formats.

Q3: Is there a trial version available for Aspose.Note for Java?

A3: Yes, you can download a free trial version from here.

Q4: Where can I get support for Aspose.Note for Java?

A4: You can get support from the Aspose.Note forum.

Q5: How can I purchase a license for Aspose.Note for Java?

A5: You can purchase a license from the Aspose website.