Netflix Feign-通过微服务传播状态和例外

你可以假装

ErrorDeprer

https://github.com/OpenFeign/feign/wiki/Custom-error-
handling

这是一个例子

public class MyErrorDeprer implements ErrorDeprer {    private final ErrorDeprer defaultErrorDeprer = new Default();    @Override    public Exception depre(String methodKey, Response response) {        if (response.status() >= 400 && response.status() <= 499) { return new MyBadRequestException();        }        return defaultErrorDeprer.depre(methodKey, response);    }}

为了让Spring能够使用ErrorDeprer，必须将其放在ApplicationContext上：

@Beanpublic MyErrorDeprer myErrorDeprer() {  return new MyErrorDeprer();}