Flask and Frontend Frameworks: A Practical Guide to Combining Vue.js with Flask
### A Practical Summary of Combining Flask and Vue.js This article introduces the practical process of combining Flask (backend) with Vue.js (frontend) to achieve front-end and back-end separation development. The advantages of choosing both are clear division of labor (backend handles data, frontend is responsible for interaction), efficient collaboration, and flexible data interaction. For the development environment, Python/Flask (with the cross-domain tool flask-cors) and Node.js/Vue-cli (with the Axios data request tool) need to be installed. The project structure is divided into two independent directories: the back-end Flask and the front-end Vue. In the back-end setup, Flask provides API interfaces through `app.py` (e.g., `/api/users` to get user lists), running on port 5000 and returning JSON data. After creating the Vue project, the front-end uses Axios to request back-end data in `App.vue` and renders the user list with `v-for`. During testing, start the Flask back-end (`python app.py`) and the Vue front-end (`npm run serve`), then access `http://localhost:8080` to see the data obtained from the back-end. Common issues include cross-domain configuration, Axios path errors, and Vue rendering problems, which can be resolved through corresponding methods. Summary: This mode enables efficient collaboration between front and back ends. Future extensions could include user CRUD operations and...
Read MoreStarting from Scratch: Complete Process of Bootstrap 5 Environment Setup
Bootstrap 5 is a popular front-end framework that provides predefined CSS styles and JS components, enabling fast construction of beautiful and responsive web pages and improving development efficiency. Two methods are recommended for environment setup: Beginners are advised to use CDN inclusion. The steps are: create an HTML file, include Bootstrap 5 CSS in the `<head>`, then include Popper.js and Bootstrap JS in sequence (or directly use `bootstrap.bundle.min.js` which includes Popper). For local development, download the package from the official website, extract it, and then include the local CSS and JS files. To verify the environment: Test a page containing buttons (e.g., `btn btn-primary`) and the grid system (`container`, `row`, `col`). The two columns will automatically merge on small screens. Common issues: Components not working (check JS inclusion order or Popper dependency), path errors (ensure correct local file paths), and responsive design failure (ensure Bootstrap container/grid classes are used). The core is correctly including Bootstrap 5's CSS and JS files. After that, you can experiment with components like buttons and navigation bars. For issues, refer to the official documentation.
Read MoreBootstrap 5 Getting Started: How to Quickly Install and Import It into Your Project
Bootstrap 5 is a powerful front-end framework for quickly building beautiful and responsive web pages. It provides ready-to-use components and utility classes, enhancing development efficiency. Its advantages include: responsive design that automatically adapts to devices, a rich set of components (such as buttons and navigation bars), simplified development through class names for styling, and good compatibility. There are three installation and introduction methods: CDN (most recommended, no download required; include CSS in <head> and JS with Popper before </body>, note the order); local download (download from the official website and place in the project directory, then import via relative paths); and npm installation (execute npm install bootstrap in a Node environment). Verification can be done by testing the card component. It should be noted that the responsive viewport <meta name="viewport" ...> must be set, JS should be placed after Popper, and class names should be used to reuse styles. Mastering these points enables efficient development, and further exploration of official documentation can be conducted to expand functionality.
Read More