SpringCloud小扩展

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<!-- hystrix -->
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
</dependency>

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@Service
public class PaymentService {

    /**
     * 可以正常访问的方法
     * @param id
     * @return
     */
    public String paymentInfo_Ok(Integer id){
        return "线程池：" + Thread.currentThread().getName() + "  ，paymentInfo_OK，id:" + id;
    }

    /**
     超时访问的方法
     */
    @HystrixCommand(fallbackMethod = "timeoutHandler",commandProperties = {
            //设置峰值，超过 3 秒，就会调用兜底方法，这个时间也可以由feign控制
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds",value = "3000")
    })
    public String paymentInfo_Timeout(Integer id){
        int interTime = 5;
        //int i = 10/0;
        try{
            TimeUnit.SECONDS.sleep(interTime);
        }catch (Exception e){
            e.printStackTrace();
        }
        return "线程池：" + Thread.currentThread().getName() + "  ，paymentInfo_Timeout，id:" + id + "耗时" + interTime + "秒钟";
    }
   // 定义服务出现异常之后，兜底的方法
    public String timeoutHandler(Integer id){
        return "服务异常，请重试......";
    }
}

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@SpringBootApplication
@EnableDiscoveryClient
@EnableCircuitBreaker //开启服务熔断
public class HystrixPaymentApplication {

    public static void main(String[] args) {
        SpringApplication.run(HystrixPaymentApplication.class,args);
    }
}

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<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
</dependency>

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@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients //开启Feign客户端
@EnableCircuitBreaker//开启熔断器
public class HystrixOrderApplication80 {

    public static void main(String[] args) {
        SpringApplication.run(HystrixOrderApplication80.class,args);
    }
}

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@RestController
@Slf4j
@SuppressWarnings("all")
public class OrderController {
    @Autowired
    OrderService orderService;
    @GetMapping("/consumer/payment/hystrix/{id}")
    public String paymentInfo_OK(@PathVariable("id")Integer id){
        log.info("paymentInfo_OKKKKOKKK");
        return orderService.paymentInfo_OK(id);
    }
    @HystrixCommand(fallbackMethod = "handeException", commandProperties = {
            //设置峰值，超过 1.5 秒，就会调用兜底方法
            @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds", value = "1500")
    })
    @GetMapping("/consumer/payment/hystrix/timeout/{id}")
    public String paymentInfo_Timeout(@PathVariable("id")Integer id){
        log.info("paymentInfo_timeout");
        return orderService.paymentInfo_Timeout(id);
    }

    public String handeException(Integer id){
        return "服务调用异常，请稍后再试.....";
    }
}

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// 全局降级处理方法
public String globalHandler(){
    return "这是全局处理降级逻辑的方法.......";
}

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<dependencies>
    <!--gateway-->
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-gateway</artifactId>
    </dependency>
    <!--eureka-client gateWay作为网关，也要注册进服务中心-->
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependency>
    <!-- gateway和web不能同时存在，即web相关jar包不能导入 -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <scope>runtime</scope>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency><!-- 引入自己定义的api通用包，可以使用Payment支付Entity -->
        <groupId>com.krisswen.cloud</groupId>
        <artifactId>cloud-api-commons</artifactId>
        <version>${project.version}</version>
    </dependency>
</dependencies>

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server:
  port: 9527
spring:
  application:
    name: cloud-gateway
  ## GateWay配置
  cloud:
    gateway:
      routes:
      - id: payment_routh  # 路由ID ， 没有固定的规则但要求唯一，建议配合服务名
        uri: http://localhost:8001  # 匹配后提供服务的路由地址
        predicates:
        - Path=/payment/**  # 断言，路径相匹配的进行路由

      - id: payment_routh2  # 路由ID ， 没有固定的规则但要求唯一，建议配合服务名
        uri: http://localhost:8001  # 匹配后提供服务的路由地址
        predicates:
        - Path=/payment/lb/**  # 断言，路径相匹配的进行路由

# 注册进 eureka Server
eureka:
  client:
    service-url:
      defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7002.com:7002/eureka/
    register-with-eureka: true
    fetch-registry: true

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@SpringBootApplication
@EnableEurekaClient
public class GatewayMain9527 {
    public static void main(String[] args) {
        SpringApplication.run(GatewayMain9527.class,args);
    }
}