@SpringBootApplication
@EnableHermes
public class ApplicationMain {
    public static void main(String[] args) {
        // 启动Spring Boot项目的唯一入口
        SpringApplication.run(ApplicationMain.class, args);
    }
}

/**
 * 测试调用
 */
@RestController
@RequestMapping(method = RequestMethod.GET)
public class MainController {
    @Resource
    private TestService testService;

    @RequestMapping("/callAdd")
    public Integer callAdd(Integer num) {
        return testService.add(num);
    }

    @RequestMapping("/callSub")
    public Integer callSub(Integer num) {
        return testService.sub(num);
    }

    @RequestMapping("/callMul")
    public Integer callAdd(Integer num, Integer mul) {
        return testService.mul(num, mul);
    }
}

/**
 * 定义调用接口
 */
@HermesClient(value = "client", fallback = FallBackServiceImpl.class)
public interface TestService {
    @HermesMapping("testAdd")
    Integer add(@HermesParam("num") Integer num);

    @HermesMapping("testSub")
    Integer sub(Integer num);

    @HermesMapping("testMul")
    Integer mul(@HermesParam("num") Integer num, @HermesParam("mul") Integer mul);
}

/**
 * 失败回调
 */
public class FallBackServiceImpl implements Service {
    @Override
    public Integer add(Integer num) {
        return -1;
    }

    @Override
    public Integer sub(Integer num) {
        return -1;
    }

    @Override
    public Integer mul(Integer num, Integer mul) {
        return -1;
    }

    @Override
    public Entity returnObject() {
        return null;
    }
}

@HermesService
public class TestServer {   
    @HermesMapping("testAdd")
    public Integer testAdd(@HermesParam("num") Integer num) {
        return num + 1;
    }

    @HermesMapping("testSub")
    public Integer testSub(String input) {
        return Integer.parseInt(input) - 1;
    }

    @HermesMapping("testMul")
    public Integer testMul(@HermesParam("num") Integer num, @HermesParam("mul") Integer mul) {
        return num * mul;
    }
}