Sistema de venta en Java y MySQL - Generar PDF parte 03

Creating a PDF Report in Java with MySQL

Introduction to the Project

• The project aims to create an event management system using Java and MySQL, culminating in generating a PDF report.

Adding Elements to the PDF

• A new element is created for the total amount due, which concatenates the stored total from a label and aligns it to the right.

• Another element is added for signatures, indicating "Cancellation" and positioning it centrally within the document. This includes adding lines for signatures.

• A message of gratitude ("Thank you for your preference or purchase") is centered and added to the document as well.

Automating PDF Generation

• After each sale, the generated PDF should open automatically by calling a specific method that opens the file at its stored path. Exception handling is also discussed here.

Database Interaction

• A new class named Config is created to encapsulate company data variables such as name, phone number, address, etc., with appropriate data types defined for each variable.

• Constructors are established: one default constructor and another parameterized constructor for initializing instances of Config.

Listing Products from Database

• A method is developed to list products by querying data from a database table using previously defined classes and methods. The results are then stored appropriately in variables corresponding to product attributes like ID, name, phone number, etc.

User Interface Updates

• New text fields are introduced in the user interface (UI) for capturing various product details such as ID (txtConfi) and others like name and address fields are updated accordingly. Buttons are also configured for updating records based on these inputs.

Implementing Data Retrieval Logic

• A method called listProducts retrieves product information from Config, populating UI fields with this data upon program initialization while ensuring proper visibility settings on components used in this process.

How to Generate Sales Reports in PDF Format

Creating a Separate Report for Each Sale

• A new report must be generated each time there is a sale; it should not replace the existing sales report in PDF format.

• Previous videos have demonstrated how to query the database to obtain the necessary data for the sales report.

Setting Up Variables for Reporting

• A variable will be created, named appropriately, and assigned a method that retrieves specific data related to the sale.

• The retrieved data will be concatenated with both the sales information and its PDF extension, ensuring proper formatting for reports.

Testing the Report Generation Process

• The process involves searching for a product with a quantity of one and adding it to the cart.

• Following this, there is an emphasis on selecting a customer from general options available.