**从零开始完成微服务项目乐优商城**
第一篇:搭建微服务框架
1、新建maven项目,配置Pom.xml文件,用于统一管理依赖。pom文件配置如下:
<groupId>com.leyou.parent</groupId> <artifactId>leyou</artifactId> <version>1.0.0-SNAPSHOT</version> <packaging>pom</packaging> <name>leyou</name> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.4.RELEASE</version> <relativePath/><!--look parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <spring-cloud.version>Finchley.RC1</spring-cloud.version> <mybatis.starter.version>1.3.2</mybatis.starter.version> <mapper.starter.version>2.0.2</mapper.starter.version> <mysql.version>5.1.32</mysql.version> <pageHelper.starter.version>1.2.3</pageHelper.starter.version> <leyou.latest.version>1.0.0-SNAPSHOT</leyou.latest.version> <fastDFS.client.version>1.26.1-RELEASE</fastDFS.client.version> </properties> <dependencyManagement> <dependencies> <!--spring cloud--> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>${spring-cloud.version}</version> <type>pom</type> <scope>import</scope> </dependency> <!--mybatis启动器--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>${mybatis.starter.version}</version> </dependency> <!--通用mapper启动器--> <dependency> <groupId>tk.mybatis</groupId> <artifactId>mapper-spring-boot-starter</artifactId> <version>${mapper.starter.version}</version> </dependency> <!--分页助手启动器--> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper-spring-boot-starter</artifactId> <version>${pageHelper.starter.version}</version> </dependency> <!--mysql驱动--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>${mysql.version}</version> </dependency> <!--FastDFS客户端--> <dependency> <groupId>com.github.tobato</groupId> <artifactId>fastdfs-client</artifactId> <version>${fastDFS.client.version}</version> </dependency> </dependencies> </dependencyManagement> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> <repositories> <repository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>https://repo.spring.io/milestone</url> <snapshots> <enabled>false</enabled> </snapshots> </repository> </repositories>
2、在父工程下新建ly-registry模块,在pom中引入eureka依赖(spring-cloud-starter-netflix-eureka-server),新增启动类,设置注解(@SpringBootApplication,@EnableEurekaServer),新增application.yml,设置内容如下:
server:
port: 10086
spring:
application:
name: ly-registry
eureka:
client:
fetch-registry: false
register-with-eureka: false
service-url:
defaultZone: http://127.0.0.1:10086/eureka
server:
enable-self-preservation: false
eviction-interval-timer-in-ms: 5000
3、在父工程下新建ly-gateway模块,在pom中分别引入cloud下的eureka和zuul依赖(spring-cloud-starter-netflix-eureka-client和spring-cloud-starter-netflix-zuul)以及boot的下的监控依赖(spring-boot-starter-actuator),新增启动类,添加注解(@SpringBootApplication,@EnableDiscoveryClient,@EnableZuulProxy),配置application.yml如下:
server:
port: 10010
spring:
application:
name: api-gateway
eureka:
client:
service-url:
defaultZone: http://127.0.0.1:10086/eureka
registry-fetch-interval-seconds: 5
instance:
instance-id: spring.application.name:{spring.application.name}:spring.application.name:{server.port}
prefer-ip-address: true #当你获取host时,返回的不是主机名,而是ip
ip-address: 127.0.0.1
zuul:
prefix: /api #添加路由前缀
retryable: true
routes:
item-service: /item/**
ribbon:
ConnectTimeout: 250 #连接超时时间(ms)
ReadTimeout: 2000 #通信超时时间(ms)
OkToRetryOnAllOperations: true #是否对所有操作重试
MaxAutoRetriesNextServer: 1#同一服务不同实例的重试次数
MaxAutoRetries: 1#同一实例的重试次数
hystrix:
command:
default:
execution:
isolation:
thread:
timeoutInMillisecond: 10000 #熔断超时时长:10000ms
3、新建ly-item模块,在该模块下新建ly-item-interface和ly-item-service模块,引入配置文件如下:
<groupId>com.leyou.service</groupId> <artifactId>ly-item</artifactId> <packaging>pom</packaging> <modules> <module>ly-item-interface</module> <module>ly-item-service</module> </modules> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> </dependency> <dependency> <groupId>tk.mybatis</groupId> <artifactId>mapper-spring-boot-starter</artifactId> </dependency> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper-spring-boot-starter</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> </dependencies>
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