spring boot 经过feign调用api接口

目的：远程调用服务器api，直接上步骤：

1，添加maven依赖，这是必须的：

<dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-feign</artifactId>
</dependency>

<dependency>
   <groupId>io.github.openfeign</groupId>
   <artifactId>feign-core</artifactId>
   <version>9.5.0</version>
</dependency>
<dependency>
   <groupId>io.github.openfeign</groupId>
   <artifactId>feign-slf4j</artifactId>
   <version>9.5.0</version>
</dependency>
<dependency>
   <groupId>io.github.openfeign</groupId>
   <artifactId>feign-hystrix</artifactId>
   <version>9.5.0</version>
</dependency>
<dependency>
   <groupId>io.github.openfeign</groupId>
   <artifactId>feign-jackson</artifactId>
   <version>9.5.0</version>
</dependency

2，接口远程请求：这个接口请求远程api，而后本地service层调用接口方法就行了

3，须要添加配置：

 

 yml配置：

 4：调用这个接口就行了:构造器注入，而后直接调用便可

 private final QrCodeFeignClient qrCodeFeignClient;
 public QrCodeServiceImpl(QrCodeFeignClient qrCodeFeignClient) {
        this.qrCodeFeignClient = qrCodeFeignClient;
    }
　　qrCodeFeignClient.timingGetData("", "", "", new String[1], 1);