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spring-feign-study

spring 框架集成 feign 学习

多 feign 个性化配置

代码中有两个 client:

  • SayGoodbyeClient
  • SayHelloClient

两个 client 分别对应两个 feignConfig:

  • SayGoodbyeClientConfig
  • SayHelloClientConfig

要想实现个性化配置这两个 feignConfig 不能被 spring 框架加载, 否则会同时生效。所以不能使用 @Configuration 注解

为了使 feignConfig 生效,添加 enableFeignConfig:

  • EnableSayGoodbyeClientConfig
@Configuration
@EnableFeignClients(
        clients = SayGoodbyeClient.class
//        defaultConfiguration 的作用域是全局的,不要配置
//        defaultConfiguration = SayGoodbyeClientConfig.class
)
public class EnableSayGoodbyeClientConfig {
}
  • EnableSayHelloClientConfig
@Configuration
@EnableFeignClients(
        clients = SayHelloClient.class
//        defaultConfiguration 的作用域是全局的,不要配置
//        defaultConfiguration = SayHelloClientConfig.class
)
public class EnableSayHelloClientConfig {
}
  • FeignClient
@FeignClient(
        name = "sayGoodbyeClient",
//      configuration 的作用域是单个client
        configuration = SayGoodbyeClientConfig.class
)
public interface SayGoodbyeClient { 
}
@FeignClient(
        name = "sayHelloClient",
//      configuration 的作用域是单个client
        configuration = SayHelloClientConfig.class
)
public interface SayHelloClient {
}