SpringCloud-Hystrix服务降级FallBack的全局降级和通用降级返回(Day6)_Anoraker的小屋_hystrix 全局fallback

大大的周 02-07 1841

全局降级服务配置

如果每一个方法配置一个服务降级方法，技术上可以，但是不聪明.这样需要大量的的工作.我们需要一个全局的返回结果

业务层 package com.gcl.springcloud.controller; import com.gcl.springcloud.service.PaymentHystrixService; import com.netflix.hystrix.contrib.javanica.annotation.DefaultProperties; import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand; import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty; import lombok.extern.slf4j.Slf4j; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RestController; import javax.annotation.Resource; @RestController @Slf4j @DefaultProperties(defaultFallback = "payment_Global_FallbackMethod") public class OrderHystirxController { @Resource private PaymentHystrixService paymentHystrixService; @GetMapping("/consumer/payment/hystrix/ok/{id}") public String paymentInfo_OK(@PathVariable("id") Integer id) { String result = paymentHystrixService.paymentInfo_OK(id); return result; } @GetMapping("/consumer/payment/hystrix/timeout/{id}") // @HystrixCommand(fallbackMethod = "paymentTimeOutFallbackMethod",commandProperties = { // @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds",value="1500") // }) @HystrixCommand public String paymentInfo_TimeOut(@PathVariable("id") Integer id) { int age = 10/0; String result = paymentHystrixService.paymentInfo_TimeOut(id); return result; } //善后方法 public String paymentTimeOutFallbackMethod(@PathVariable("id") Integer id){ return "我是消费者8084,对方支付系统繁忙请10秒钟后再试或者自己运行出错请检查自己,o(╥﹏╥)o"; } // 下面是全局fallback方法 public String payment_Global_FallbackMethod() { return "Global异常处理信息，请稍后再试，/(ㄒoㄒ)/~~"; } } 运行截图

通用降级服务配置(Feigen支持Hystrix,此时需要关闭支付模块) 控制层 package com.gcl.springcloud.controller; import com.gcl.springcloud.service.PaymentHystrixService; import com.netflix.hystrix.contrib.javanica.annotation.DefaultProperties; import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand; import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty; import lombok.extern.slf4j.Slf4j; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RestController; import javax.annotation.Resource; @RestController @Slf4j //@DefaultProperties(defaultFallback = "payment_Global_FallbackMethod") public class OrderHystirxController { @Resource private PaymentHystrixService paymentHystrixService; @GetMapping("/consumer/payment/hystrix/ok/{id}") public String paymentInfo_OK(@PathVariable("id") Integer id) { String result = paymentHystrixService.paymentInfo_OK(id); return result; } @GetMapping("/consumer/payment/hystrix/timeout/{id}") // @HystrixCommand(fallbackMethod = "paymentTimeOutFallbackMethod",commandProperties = { // @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds",value="1500") // }) //@HystrixCommand public String paymentInfo_TimeOut(@PathVariable("id") Integer id) { //int age = 10/0; String result = paymentHystrixService.paymentInfo_TimeOut(id); return result; } //善后方法 public String paymentTimeOutFallbackMethod(@PathVariable("id") Integer id){ return "我是消费者8084,对方支付系统繁忙请10秒钟后再试或者自己运行出错请检查自己,o(╥﹏╥)o"; } // 下面是全局fallback方法 public String payment_Global_FallbackMethod() { return "Global异常处理信息，请稍后再试，/(ㄒoㄒ)/~~"; } } Feign接口类 package com.gcl.springcloud.service; import org.springframework.cloud.openfeign.FeignClient; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PathVariable; @FeignClient(value = "CLOUD-PROVIDER-HYSTRIX-PAYMENT8008", fallback = PaymentHystrixServiceImpl.class) public interface PaymentHystrixService { @GetMapping("/payment/hystrix/ok/{id}") public String paymentInfo_OK(@PathVariable("id") Integer id); @GetMapping("/payment/hystrix/timout/{id}") public String paymentInfo_TimeOut(@PathVariable("id") Integer id); } Feign接口实现类 package com.gcl.springcloud.service; import org.springframework.stereotype.Service; @Service public class PaymentHystrixServiceImpl implements PaymentHystrixService { @Override public String paymentInfo_OK(Integer id) { return "paymentInfo_OK error"; } @Override public String paymentInfo_TimeOut(Integer id) { return "paymentInfo_TimeOut error"; } } 运行