Spring Boot中的动态配置刷新机制

import org.springframework.cloud.context.scope.refresh.RefreshScope;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
 
@RestController
public class RefreshController {
 
    private final RefreshScope refreshScope;
 
    public RefreshController(RefreshScope refreshScope) {
        this.refreshScope = refreshScope;
    }
 
    @PostMapping("/refresh")
    public String refreshAll() {
        refreshScope.refreshAll();
        return "All beans have been refreshed.";
    }
}

这段代码定义了一个简单的Spring Boot控制器，它提供了一个POST接口/refresh，当调用这个接口时，会刷新Spring Cloud Config中所有配置属性。这个接口可以用来在不重启服务的情况下更新配置。