Spring|Spring Cloud入门系列服务提供者总结 SpringCloud入门系列服务提供者总

服务提供者使用Eureka Client组件创建
首先在父项目中创建Eureka Client Server项目（Maven）
创建完成以后，修改pom.xml文件

【Spring|Spring Cloud入门系列服务提供者总结】com.wenqi.springcloudorg.example1.0-SNAPSHOT4.0.0EurekaClientorg.springframework.cloudspring-cloud-starter-netflix-eureka-client2.0.2.RELEASE

编写application.yml文件

server:port: 8010# 当前服务注册在eureka server上的名称spring:application:name: provider# 当前注册中心的访问地址eureka:client:service-url:defaultZone: http://localhost:8761/eureka/# 是否将当前服务的ip注册到Eureka Serverinstance:prefer-ip-address: true

创建启动类

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

启动启动类，这时候访问http://localhost:8761/ 可以看到服务注册进来了。
接下来进行增删改查的简单业务服务操作
创建实体类

@Data@AllArgsConstructor@NoArgsConstructorpublic class Student {private long id; private String name; private int age; }

创建repository

public interface StudentRepository {public Collection findAll(); public Student findById(long id); public void saveOrUpdate(Student student); public void deleteById(long id); }

创建repository实现类

@Repositorypublic class StudentRepositoryimpl implements StudentRepository {private static Map studentMap; static {studentMap = new HashMap(); studentMap.put(1L,new Student(1L,"张三",22)); studentMap.put(2L,new Student(2L,"王五",20)); studentMap.put(3L,new Student(3L,"李四",21)); }public Collection findAll() {return studentMap.values(); }public Student findById(long id) {return studentMap.get(id); }public void saveOrUpdate(Student student) {studentMap.put(student.getId(),student); }public void deleteById(long id) {studentMap.remove(id); }}

实现增删改查操作 controller

@RestController@RequestMapping("/student")public class StudentController {@Autowiredprivate StudentRepository studentRepository; @GetMapping("/findAll")public Collection findAll(){return studentRepository.findAll(); }@GetMapping("/findById/{id}")public Student findById(@PathVariable("id") long id){return studentRepository.findById(id); }@PostMapping("/save")public void save(@RequestBody Student student){studentRepository.saveOrUpdate(student); }@PutMapping("/update")public void update(@RequestBody Student student){studentRepository.saveOrUpdate(student); }@DeleteMapping("/delete/{id}")public void deleteById(@PathVariable("id") long id){studentRepository.deleteById(id); }}

启动Eureka Client，并启动Eureka Server。
使用postman工具进行测试