服務(wù)提供者使用Eureka Client組件創(chuàng)建首先在父項目中創(chuàng)建Eureka Client Server項目（Maven）創(chuàng)建完成以后，修改pom.xml文件

<?xml version='1.0' encoding='UTF-8'?><project xmlns='http://maven.apache.org/POM/4.0.0' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd'> <parent><artifactId>com.wenqi.springcloud</artifactId><groupId>org.example</groupId><version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>EurekaClient</artifactId> <dependencies><dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId> <version>2.0.2.RELEASE</version></dependency> </dependencies></project>

編寫application.yml文件

server: port: 8010 # 當(dāng)前服務(wù)注冊在eureka server上的名稱spring: application: name: provider # 當(dāng)前注冊中心的訪問地址eureka: client: service-url: defaultZone: http://localhost:8761/eureka/ # 是否將當(dāng)前服務(wù)的ip注冊到Eureka Server instance: prefer-ip-address: true

創(chuàng)建啟動類

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

啟動啟動類，這時候訪問http://localhost:8761/ 可以看到服務(wù)注冊進(jìn)來了。接下來進(jìn)行增刪改查的簡單業(yè)務(wù)服務(wù)操作

創(chuàng)建實體類

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

創(chuàng)建repository

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

創(chuàng)建repository實現(xiàn)類

@Repositorypublic class StudentRepositoryimpl implements StudentRepository { private static Map<Long,Student> studentMap; static {studentMap = new HashMap<Long, Student>();studentMap.put(1L,new Student(1L,'張三',22));studentMap.put(2L,new Student(2L,'王五',20));studentMap.put(3L,new Student(3L,'李四',21)); } public Collection<Student> 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); }}

實現(xiàn)增刪改查操作 controller

@RestController@RequestMapping('/student')public class StudentController { @Autowired private StudentRepository studentRepository; @GetMapping('/findAll') public Collection<Student> 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); }}

啟動Eureka Client，并啟動Eureka Server。使用postman工具進(jìn)行測試

postman的使用自己下去進(jìn)行了練習(xí)，不得不說測試還是很有必要的。

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