使用jdk动态代理模拟fegin发送请求，报错

@RestController
public class JdkCatController {//OpenFeign动态代理思路

    @Autowired
    RestTemplate restTemplate;

    @GetMapping("getFishA")
    public Fish getJdkFish(){
        CatOpenFeign o = (CatOpenFeign) Proxy.newProxyInstance(JdkCatController.class.getClassLoader(), new Class[]{CatOpenFeign.class}, new InvocationHandler() {
            @Override
            public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
                //获取接口名称
                GetMapping annotation = method.getAnnotation(GetMapping.class);
                String[] paths = annotation.value();
                String path = paths[0];
                //拿到@FeignClient注解的值，
                Class<?> declaringClass = method.getDeclaringClass();
                FeignClient annotation1 = declaringClass.getAnnotation(FeignClient.class);
                String applicationName = annotation1.value();
                //发起请求
                String url = "http://" + applicationName + "/" + path;
                String result = restTemplate.getForObject(url, String.class);
                System.out.println("调用结果：" + result);
                return result;
            }
        });
        return o.getFish();
    }
}

报错信息

你这个接口实际返回的是Fish对象，然后你在发起http请求的时候返回string怎么行呢，你起码要转成Fish对象返回吧