转发的目标服务microservice-provider-user配置
server: port: 8000 spring: application: name: microservice-provider-user cloud: consul: discovery: instance-id: ${spring.application.name}:${server.port} prefer-ip-address: true healthCheckPath: /health healthCheckInterval: 15s hostname: ${spring.application.name} service-name: ${spring.application.name} enabled: true register: true heartbeat: enabled: true host: aliyun.lzh port: 8500 enabled: true logging: # 配置日志级别，让hibernate打印出执行的SQL level: root: INFO org.hibernate: INFO org.hibernate.type.descriptor.sql.BasicBinder: TRACE org.hibernate.type.descriptor.sql.BasicExtractor: TRACE
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.itmuch.cloud</groupId> <artifactId>microservice-gateway-zuul</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <!-- 引入spring boot的依赖 --> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.9.RELEASE</version> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-zuul</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-consul-discovery</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> </dependencies> <!-- 引入spring cloud的依赖 --> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>Edgware.RELEASE</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <!-- 添加spring-boot的maven插件 --> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
package com.itmuch.cloud.study; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.zuul.EnableZuulProxy; @SpringBootApplication @EnableZuulProxy public class ZuulApplication { public static void main(String[] args) { SpringApplication.run(ZuulApplication.class, args); } }
Zuul网关microservice-gateway-zuul 配置
server: port: 8040 spring: application: name: microservice-gateway-zuul cloud: consul: discovery: instance-id: ${spring.application.name}:${server.port} prefer-ip-address: true healthCheckPath: /health healthCheckInterval: 15s hostname: ${spring.application.name} service-name: ${spring.application.name} enabled: true register: true heartbeat: enabled: true host: aliyun.lzh port: 8500 enabled: true management: security: enabled: false zuul: ignored-services: '*' # 使用'*'可忽略所有微服务 routes: microservice-provider-user: /user/** hystrix: command: default: execution: timeout: enabled: false isolation: thread: timeoutInMilliseconds: 60000 ribbon: ReadTimeout: 60000 ConnectTimeout: 60000
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.itmuch.cloud</groupId> <artifactId>microservice-provider-user</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <!-- 引入spring boot的依赖 --> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.9.RELEASE</version> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>com.h2database</groupId> <artifactId>h2</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-consul-discovery</artifactId> </dependency> </dependencies> <!-- 引入spring cloud的依赖 --> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>Edgware.RELEASE</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> </project>
遇到的问题：
请求接口http://localhost:8040/user/123 正常应该被zuul网关转发到microservice-provider-user服务的接口中但是测试过程中一直出现
com.netflix.client.ClientException: Load balancer does not have available server for client
原因：zuul网关服务microservice-gateway-zuul 的健康检查服务没开启，
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency>
spring.cloud.consul.heartbeat.enabled = true spring.cloud.consul.healthCheckPath = /health spring.cloud.consul.healthCheckInterval = 15s
完整代码：
