Steps to integrate mainstream front-end frameworks with Java back-end: Angular integration: Use Spring Boot to create a back-end, import Angular scripts, create HTML pages, and define controllers. React integration: Same as above, but using React scripts and components. Vue.js integration: Same as above, but using Vue.js scripts and components.
How to use the Java framework to integrate the front-end framework
In modern Web development, integrating the front-end framework with the Java back-end framework has been becoming more and more common. This article explains how to use Spring Boot to integrate with popular front-end frameworks such as Angular, React, and Vue.js.
Angular integration
@SpringBootApplication
public class SpringBootAngularDemoApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootAngularDemoApplication.class, args);
}
}<!-- angular.html -->
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.7.9/angular.min.js"></script>
</head>
<body ng-app="myApp">
<div>
<input ng-model="name">
<button ng-click="greet()">Greet</button>
</div>
<h3 ng-bind="greeting"></h3>
</body>
</html>// main.js
angular.module('myApp', [])
.controller('myCtrl', function($scope) {
$scope.greeting = "";
$scope.greet = function() {
$scope.greeting = "Hello, " + $scope.name + "!";
};
});React integration
@SpringBootApplication
public class SpringBootReactDemoApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootReactDemoApplication.class, args);
}
}<!-- index.html --> <html> <head> <script src="https://unpkg.com/react@17/umd/react.production.min.js"></script> <script src="https://unpkg.com/react-dom@17/umd/react-dom.production.min.js"></script> <script src="main.js"></script> </head> <body> <div id="root"></div> </body> </html>
// main.js
const Greeting = () => <h1 id="Hello-World">Hello, World!</h1>;
ReactDOM.render(<Greeting />, document.getElementById("root"));Vue.js integration
@SpringBootApplication
public class SpringBootVueDemoApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootVueDemoApplication.class, args);
}
}<!-- index.html --> <html> <head> <script src="https://unpkg.com/vue@2.6.12/dist/vue.js"></script> <script src="main.js"></script> </head> <body> <div id="app"></div> </body> </html>
// main.js
new Vue({
el: "#app",
data: {
message: "Hello, Vue!"
},
template: "<div>{{ message }}</div>"
}); Practical Case
Suppose you are building a simple web application that allows users to create a profile that includes name and age. Here's how to integrate the frontend using Spring Boot and Angular:
Java Backend
@Entity
public class Profile {
private Long id;
private String name;
private Integer age;
// getters and setters
}
@SpringBootApplication
public class SpringBootAngularDemoApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootAngularDemoApplication.class, args);
}
}Angular Frontend
<!-- profile.html -->
<div>
<form>
<label>Name:</label>
<input type="text" [(ngModel)]="profile.name">
<br>
<label>Age:</label>
<input type="number" [(ngModel)]="profile.age">
<br>
<button type="submit">Save</button>
</form>
</div>// profiles.controller.js
angular.module('myApp')
.controller('ProfilesCtrl', function($scope, $http) {
$scope.save = function() {
$http.post('/profiles', $scope.profile)
// handle server response
};
});By following With this guide, you can easily integrate front-end frameworks with Java backends and create powerful web applications.
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