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Openfeign service call

2022-04-23 03:02:00 【Leon_ Jinhai_ Sun】

# 1. Service invocation method introduces dependency OpenFeign rely on

<!--Open Feign rely on -->
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>

# 2. Add comments to the entry class to open OpenFeign Support

@SpringBootApplication
@EnableFeignClients
public class Users9999Application {
    public static void main(String[] args) {
        SpringApplication.run(Users9999Application.class, args);
    }
}

# 3. Create a client call interface

//value Property to specify : Call service name 
@FeignClient("PRODUCTS")
public interface ProductClient {
  
    @GetMapping("/product/findAll") // Write the service call path 
    String findAll();
}

# 4. Use feignClient The client object invokes the service

// Inject client objects 
@Autowired
private ProductClient productClient;

@GetMapping("/user/findAllFeignClient")
public String findAllFeignClient(){
  log.info(" By using OpenFeign Component invokes goods and services ...");
  String msg = productClient.findAll();
  return msg;
}

# 5. Access and test services 
- http://localhost:9999/user/findAllFeignClient

版权声明
本文为[Leon_ Jinhai_ Sun]所创，转载请带上原文链接，感谢
https://yzsam.com/2022/04/202204220633252075.html

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Openfeign service call

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