Application of Java framework in cloud-native enterprise applications

Use the Java framework Spring Boot and Spring Cloud to build cloud-native enterprise applications. Spring Boot simplifies setup and configuration; Spring Cloud provides distributed features such as service discovery and load balancing. Practical case: building microservices using Spring Boot and Spring Cloud, including configuring pom.xml and writing application code. Run ServiceRegistrationApplication, ServiceDiscoveryApplication, and ConsumerApplication to demonstrate mutual registration and discovery.

Application of Java framework in cloud-native enterprise applications

With the popularity of cloud-native computing, enterprises are increasingly Many places adopt cloud native architecture to build and deploy applications. Requirements for cloud native include agility, elasticity, scalability and ease of management. To meet these requirements, Java developers need to use frameworks specifically designed for cloud-native environments.

Spring Boot and Spring Cloud

Spring Boot is a framework for quickly creating Spring applications. It provides simplified setup, automatic configuration, and an embedded server to enable developers to get applications up and running quickly. Spring Cloud is a set of libraries for building distributed cloud-native applications. It provides functions such as service discovery, load balancing, configuration management, and messaging.

Practical case: Using Spring Boot and Spring Cloud to build microservices

Create an example of using Spring Boot and Spring Cloud to build distributed microservices.

pom.xml

<dependencies>
  <dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-eureka</artifactId>
  </dependency>
  <dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-feign</artifactId>
  </dependency>
  <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
  </dependency>
</dependencies>

ServiceRegistrationApplication.java

@SpringBootApplication
public class ServiceRegistrationApplication {

  public static void main(String[] args) {
    SpringApplication.run(ServiceRegistrationApplication.class, args);
  }
}

ServiceDiscoveryApplication.java

@SpringBootApplication
@EnableEurekaClient
public class ServiceDiscoveryApplication {

  public static void main(String[] args) {
    SpringApplication.run(ServiceDiscoveryApplication.class, args);
  }
}

ConsumerApplication.java

@SpringBootApplication
@EnableFeignClients
public class ConsumerApplication {

  public static void main(String[] args) {
    SpringApplication.run(ConsumerApplication.class, args);
  }
}

Run the application

Run ServiceRegistrationApplication, and then run ServiceDiscoveryApplication. Finally, run ConsumerApplication. Applications will register themselves in the Eureka service registry and discover each other.

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