Use Spring Boot and Webpack to build front-end projects and plug-in systems

As the complexity of modern web applications continues to increase, building excellent front-end engineering and plug-in systems has become increasingly important. With the popularity of Spring Boot and Webpack, they have become a perfect combination for building front-end projects and plug-in systems.

Spring Boot is a Java framework that creates Java applications with minimal configuration requirements. It provides many useful features, such as automatic configuration, so that developers can build and deploy web applications faster and easier.

Webpack is a front-end build tool based on Node.js. It can compile, package and optimize various languages ​​and frameworks into a minimal set of static resources.

Below I will introduce how to use Spring Boot and Webpack to build front-end projects and plug-in systems.

1. Create a Spring Boot project

First, we need to create a Spring Boot project. You can use Spring Initializr or create it directly in the IDE.

When creating the project, we need to select Web as the dependency and add some common plug-ins, such as Spring Boot DevTools and Lombok.

2. Add Webpack Configuration

Now we need to add Webpack configuration for our Spring Boot application. We can create a file called webpack.config.js and add the following code in it:

const path = require('path');

module.exports = {
  mode: 'development',
  entry: './src/main/resources/static/js/index.js',
  output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname, 'src/main/resources/static/dist'),
  },
  module: {
    rules: [
      {
        test: /.(js|jsx)$/,
        exclude: /(node_modules)/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/preset-env', '@babel/preset-react'],
          },
        },
      },
    ],
  },
};

This configuration will use our source file as the entry point, packaged into a file called bundle.js, Place it in the src/main/resources/static/dist directory. It also compiles our JavaScript and React code.

It should be noted that in the above code, src/main/resources/static/js/index.js is our entry point. This means we need to create a file called index.js in that directory and place our code in it.

3. Embedding Webpack

Now that we have a Webpack configuration, we need to embed it into our application. For this, we need to add Webpack dependency in our Spring Boot application.

You can add the following content in the pom.xml file:

<dependency>
  <groupId>com.github.eirslett</groupId>
  <artifactId>frontend-maven-plugin</artifactId>
  <version>1.11.2</version>
</dependency>

This plugin will help us automatically run Webpack when building the application.

Next, we need to add the following to our application.properties file:

spring.resources.chain.strategy.content.enabled=true
spring.resources.chain.strategy.content.paths=/**

This will add our static files to the Spring Boot resource processing chain.

4. Add React Plugin

Now we have the infrastructure of Webpack and Spring Boot set up and are ready to start adding plugins. Here I will introduce how to add a React plugin.

First, we need to install the React npm module. Run the following command in the command line:

npm install --save react react-dom

Now we can use React in our index.js file. For example:

import React from 'react';
import ReactDOM from 'react-dom';

const App = () => (
  <div>
    <h1>Hello World!</h1>
  </div>
);

ReactDOM.render(<App />, document.getElementById('app'));

Here we simply render a div containing the text "Hello World!"

5. Building and running the application

Now that we have added our plugin, we need to build our application and see if it works.

Use the following command to package our application:

./mvnw frontend:install-node-and-npm frontend:npm frontend:webpack

This will perform 3 steps: first, it will install Node.js and npm; second, it will install our React module; finally, it will run Webpack to bundle our JavaScript code.

Now, we can launch our application and access it. Use the following command to start the Spring Boot service:

./mvnw spring-boot:run

Now you can visit http://localhost:8080 in the browser to view our application!

6. Summary

Now you know how to use Spring Boot and Webpack to build front-end projects and plug-in systems. We first created a Spring Boot project and Webpack configuration, then embedded the Webpack and React plugins, and finally built and ran our application.

Use Spring Boot and Webpack to build front-end projects and plug-in systems, making it easy to deploy and manage all code in a single application. This makes it easier to build richer and more complex applications.

The above is the detailed content of Use Spring Boot and Webpack to build front-end projects and plug-in systems. For more information, please follow other related articles on the PHP Chinese website!