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Discover how to effectively use `Thymeleaf` with `AJAX` to update tables dynamically in your web applications. Learn step-by-step from fetching data to rendering it seamlessly.
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How to Use Thymeleaf to Dynamically Update a Table in Your Application

When building web applications using Spring Boot, incorporating dynamic and responsive functionalities can significantly enhance the user experience. One common requirement is updating a table in real-time without the need to refresh the page. This guide explores how to achieve dynamic updates using Thymeleaf, AJAX, and a few snippets of Java code.

Understanding the Problem

Suppose you have a web application that lists user reviews in a table-like format, but the data displayed becomes outdated. By clicking an "Update" button, users should be able to fetch the latest reviews from the server and render them into the existing UI structure seamlessly.

You might be wondering:

How can I send a request to fetch the latest data?

How do I update the HTML structure with this new data using Thymeleaf?

Let’s dive into the steps to implement this solution effectively.

Steps to Dynamically Update the Table

Step 1: Set Up Your HTML Structure

First, we start with a basic HTML layout for your table. It might look something like this:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Create the AJAX Function

In order to update the data, you need to write an AJAX function that will trigger when the "Update" button is clicked. Here's a simple example:

[[See Video to Reveal this Text or Code Snippet]]

This code sends a POST request to your server to fetch the latest reviews.

Step 3: Handle the Server Response

In the success function of your AJAX request, you'll need to process the response data and dynamically update your HTML. Here’s how you can do this:

Loop through the JSON array returned by the server.

Construct HTML snippets using the data.

Append them to your existing UI structure.

Here's a demo implementation:

[[See Video to Reveal this Text or Code Snippet]]

Step 4: Update the Spring Controller

Your server-side controller needs to return the new data when the /findUserReviews endpoint is called. For instance:

[[See Video to Reveal this Text or Code Snippet]]

This code ensures that you fetch updated reviews and return them as a JSON response.

Conclusion

In conclusion, by combining Thymeleaf, AJAX, and a few lines of Java, you can effectively create a seamless user experience where users can see up-to-date information without refreshing the page. Just ensure you handle the data properly on both client and server sides for optimal performance. Happy coding!