1.新建项目hystrixDashboard, pom.xml中hystrix相关依赖
<dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-eureka</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-hystrix-dashboard</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-hystrix</artifactId> </dependency>
2.hystrixDashboard application.properties
server.port=8080
spring.application.type=hystrixDashboard
spring.application.group=group
spring.application.name=${spring.application.group}-${spring.application.type}
dashboard.register.host=http://
eureka.client.service-url.defaultZone=${dashboard.register.host}/eureka
eureka.instance.lease-renewal-interval-in-seconds=10
eureka.instance.lease-expiration-duration-in-seconds=30
eureka.instance.prefer-ip-address=true
eureka.instance.instance-id=${spring.cloud.client.ipAddress}:${server.port}
eureka.client.eureka-server-read-timeout-seconds=60
3.hystrixDashboard 启动入口配置
@EnableEurekaClient
@SpringBootApplication
@EnableHystrix
@EnableHystrixDashboard
public class HystrixDashboardApplication {
public static void main(String[] args) {
SpringApplication.run(HystrixDashboardApplication.class, args);
}
}
4. 启动后访问 http://localhost:8080/hystrix
5. 新建测试项目hystrix, pom.xml依赖
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-eureka</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-hystrix</artifactId>
</dependency>
6.hystrix application.properties
server.port=8081
spring.application.type=hystrix
spring.application.group=group
spring.application.name=${spring.application.group}-${spring.application.type}
dashboard.register.host=http://
eureka.client.service-url.defaultZone=${dashboard.register.host}/eureka
eureka.instance.lease-renewal-interval-in-seconds=10
eureka.instance.lease-expiration-duration-in-seconds=30
eureka.instance.prefer-ip-address=true
eureka.instance.instance-id=${spring.cloud.client.ipAddress}:${server.port}
eureka.client.eureka-server-read-timeout-seconds=60
7. 测试项目启动入口配置
@SpringBootApplication
@EnableEurekaClient
@EnableDiscoveryClient
@RestController
@EnableHystrix
public class HystrixApplication {
public static void main(String[] args) {
SpringApplication.run(HystrixApplication.class, args);
}
@RequestMapping("/test")
@HystrixCommand(fallbackMethod = "error")
public String test(String name) {
return new RestTemplate().getForObject("http://一个不可访问的地址/hi?name=" + name, String.class);
}
@Bean
@LoadBalanced
RestTemplate restTemplate() {
return new RestTemplate();
}
public String error(String name) {
return "error";
}
}
8. 启动hystrix, 访问http://localhost:8081/test?name=123
9.访问hystrix dashboard
