使用Spring Boot和Spring Cloud快速构建微服务架构

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;

@SpringBootApplication
@EnableEurekaClient
public class UserServiceApplication {

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

}

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/api/users")
public class UserController {

    @GetMapping
    public List getAllUsers() {
        // 查询数据库获取所有用户信息
        List users = userService.getAllUsers();
        return users;
    }

    // 其他接口方法省略...

}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class UserService {

    @Autowired
    private UserRepository userRepository;

    public List getAllUsers() {
        return userRepository.findAll();
    }

    // 其他业务逻辑方法省略...

}

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface UserRepository extends JpaRepository {

}

public class User {

    private Long id;
    private String username;
    private String email;

    // 构造方法、getter和setter省略...

}

spring:
  application:
    name: user-service
  cloud:
    config:
      uri: http://config-service:8888

eureka:
  client:
    serviceUrl:
      defaultZone: http://eureka-server:8761/eureka/

通过上述代码示例，我们可以快速搭建一个基于Spring Boot和Spring Cloud的微服务架构。服务注册与发现、配置中心、RESTful API等功能都可以得到支持，让开发者能够更加专注于业务逻辑的实现，提高开发效率和代码质量。