@HystrixCommand报错

@HystrixCommand报错 添加以下依赖便可以解决

<dependency>
<groupId>com.netflix.hystrix</groupId>
<artifactId>hystrix-javanica</artifactId>
<version>RELEASE</version>
</dependency>

package com.tedu.sphystrix.contrller;
import java.util.List;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.tedu.pojo.Item;
import com.tedu.pojo.Order;
import com.tedu.pojo.User;
import com.tedu.web.utli.JsonResult;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
@RestController
public class HytrixController {
@Autowired
private RestTemplate rt;
@GetMapping("/item-service/{orderId}")
@HystrixCommand(fallbackMethod = "getItemsFB") //指定降级方法的方法名
public JsonResult<List<Item>> getItems(@PathVariable String orderId) {
return rt.getForObject("http://item-service/{1}", JsonResult.class, orderId);
}
@PostMapping("/item-service/decreaseNumber")
@HystrixCommand(fallbackMethod = "decreaseNumberFB")
public JsonResult decreaseNumber(@RequestBody List<Item> items) {
return rt.postForObject("http://item-service/decreaseNumber", items, JsonResult.class);
}
/
@GetMapping("/user-service/{userId}")
@HystrixCommand(fallbackMethod = "getUserFB")
public JsonResult<User> getUser(@PathVariable Integer userId) {
return rt.getForObject("http://user-service/{1}", JsonResult.class, userId);
}
@GetMapping("/user-service/{userId}/score")
@HystrixCommand(fallbackMethod = "addScoreFB")
public JsonResult addScore(@PathVariable Integer userId, Integer score) {
return rt.getForObject("http://user-service/{1}/score?score={2}", JsonResult.class, userId, score);
}
/
@GetMapping("/order-service/{orderId}")
@HystrixCommand(fallbackMethod = "getOrderFB")
public JsonResult<Order> getOrder(@PathVariable String orderId) {
return rt.getForObject("http://order-service/{1}", JsonResult.class, orderId);
}
@GetMapping("/order-service")
@HystrixCommand(fallbackMethod = "addOrderFB")
public JsonResult addOrder() {
return rt.getForObject("http://order-service/", JsonResult.class);
}
/
//降级方法的参数和返回值，需要和原始方法一致，方法名任意
public JsonResult<List<Item>> getItemsFB(String orderId) {
return JsonResult.err("获取订单商品列表失败");
}
public JsonResult decreaseNumberFB(List<Item> items) {
return JsonResult.err("更新商品库存失败");
}
public JsonResult<User> getUserFB(Integer userId) {
return JsonResult.err("获取用户信息失败");
}
public JsonResult addScoreFB(Integer userId, Integer score) {
return JsonResult.err("增加用户积分失败");
}
public JsonResult<Order> getOrderFB(String orderId) {
return JsonResult.err("获取订单失败");
}
public JsonResult addOrderFB() {
return JsonResult.err("添加订单失败");
}
}

最后

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