zuul服务超时时间处理

骑猪看日落 2022-04-13 14:40 344阅读 0赞

当服务超时，如果你没有配置熔断器，它会报超时，但是服务继续执行。而且超时的时间也要配置好，一般是2秒就断了，所以要配置一哈。

pom.xml

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

第一个是熔断器引入，后面2个是监控器来着。

在启动类添加注解

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

zuul也是作为一个服务来注册的。

@EnableHystrixDashboard仪表器注解，通过访问/hystrix然后输入/hystrix.stream点击按钮运行

[https://www.cnblogs.com/leeSmall/p/8847652.html][https_www.cnblogs.com_leeSmall_p_8847652.html]

这一篇主要将超时配置！所以其他的不重点写

application.yml

zuul:
      routes:
        zuul:
          path: /zuul/**
          serviceId: zuul
        fans:
              path: /fans/**
              serviceId: fans
    fans:
      ribbon:
        ConnectTimeout: 8000
        # 请按实际情况配置
        ReadTimeout: 8000
    
    hystrix:
        command:
        default:
        execution:
        timeout:
        enabled: true
        isolation:
        thread:
        timeoutInMilliseconds: 8000

还有一个是熔断器的降级

import org.springframework.cloud.netflix.zuul.filters.route.ZuulFallbackProvider;
    
    import org.springframework.http.HttpHeaders;
    
    import org.springframework.http.HttpStatus;
    
    import org.springframework.http.MediaType;
    
    import org.springframework.http.client.ClientHttpResponse;
    
    import org.springframework.stereotype.Component;
    
    import java.io.ByteArrayInputStream;
    
    import java.io.IOException;
    
    import java.io.InputStream;
    
    import java.nio.charset.Charset;
    
    
    
    @Component
    
    public class ConsumerFallbackProvider implements ZuulFallbackProvider {
    
        @Override
    
        public String getRoute() {
    
            // 表明是为哪个微服务提供回退
    
            return "fans";
    
        }
    
    
    
        @Override
    
        public ClientHttpResponse fallbackResponse() {
    
            return new ClientHttpResponse() {
    
                @Override
    
                public HttpStatus getStatusCode() throws IOException {
    
                    // fallback时的状态码
    
                    return HttpStatus.OK;
    
                }
    
    
    
                @Override
    
                public int getRawStatusCode() throws IOException {
    
                    // 数字类型的状态码，本例返回的其实就是200，详见HttpStatus
    
                    return this.getStatusCode().value();
    
                }
    
    
    
                @Override
    
                public String getStatusText() throws IOException {
    
                    // 状态文本，本例返回的其实就是OK，详见HttpStatus
    
                    return this.getStatusCode().getReasonPhrase();
    
                }
    
    
    
                @Override
    
                public void close() {
    
                }
    
    
    
                @Override
    
                public InputStream getBody() throws IOException {
    
                    // 响应体
    
                    return new ByteArrayInputStream("微服务不可用，请稍后再试。".getBytes());
    
                }
    
    
    
                @Override
    
                public HttpHeaders getHeaders() {
    
                    // headers设定
    
                    HttpHeaders headers = new HttpHeaders();
    
                    MediaType mt = new MediaType("application","json", Charset.forName("UTF-8"));
    
                    headers.setContentType(mt);
    
                    return headers;
    
                }
    
            };
    
        }
    
    }

[https_www.cnblogs.com_leeSmall_p_8847652.html]: https://www.cnblogs.com/leeSmall/p/8847652.html