spring boot 經過feign調用api接口

目的：遠程調用服務器api，直接上步驟：

1，添加maven依賴，這是必須的：

<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，接口遠程請求：這個接口請求遠程api，而後本地service層調用接口方法就行了

3，須要添加配置：

 

 yml配置：

 4：調用這個接口就行了:構造器注入，而後直接調用便可

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