【乐优商城】springcloud微服务-项目搭建
2018-10-12 02:11
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版权声明：此博客为个人博客，不涉及商业用途，仅提供学习参考，内容均来自个人原创以及互联网转载和摘录。 --------------------- 本文来自 路西法Lucifer 的CSDN 博客 ，全文地址请点击： https://blog.csdn.net/qq_37495786/article/details/83021225
前言：
乐优商城这个视频还可以，于是拿来练练手，我对着视频搭环境一直在service服务模块卡住了，注册中心和网关可以启动，服务模块却一直启动不了，报各种奇怪的错，网上也没有什么好的解决办法，于是我就自己改动了下，不完全按视频的，于是搭建成功了，值得注意的是springcloud的版本不同，配置的也不太一样的。
项目结构：
1.创建父工程：
父工程的pom.xml:
（ps:此处我的springcloud的版本是Finchley.SR1，并不是传智视频上的Finchley.RC1，我刚开始用的是RC1，结果发现在service模块的启动一直会报错，不知道有没有人遇到跟我一样的情况。）
[code]<?xml version="1.0" encoding="UTF-8"?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://maven.apache.org/POM/4.0.0"
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.leyou.parent</groupId>
<artifactId>leyou</artifactId>
<packaging>pom</packaging>
<version>1.0.0-SNAPSHOT</version>
<modules>
<module>ly-registry</module>
<module>ly-api-gateway</module>
<module>ly-item</module>
</modules>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
<relativePath/> <!-- lookup 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.SR1</spring-cloud.version>
<mybatis.starter.version>1.3.2</mybatis.starter.version>
<mapper.starter.version>2.0.2</mapper.starter.version>
<druid.starter.version>1.1.9</druid.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>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<!-- mybatis启动器 -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>${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>
<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>
</project>
2.创建 Eureka注册中心
模块结构：
pom.xml:
[code]<?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"> <parent> <artifactId>leyou</artifactId> <groupId>com.leyou.parent</groupId> <version>1.0.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <groupId>com.leyou.common</groupId> <artifactId>ly-registry</artifactId> <version>1.0.0-SNAPSHOT</version> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId> </dependency> </dependencies> </project>
创建启动类：LyRegistry
[code]package com.leyou;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
/**
* @author: Lucifer
* @create: 2018-10-12 01:14
* @description:
**/
@SpringBootApplication
@EnableEurekaServer
public class LyRegistry {
public static void main(String[] args) {
SpringApplication.run(LyRegistry.class, args);
}
}
application.yml：
ps:
这里的MySQL连接信息的url建议后面加上：useUnicode=true&characterEncoding=utf8,完整的:jdbc:mysql://localhost:3306/heima?useUnicode=true&characterEncoding=utf8,如果不加的话，后面你会遇到坑的，在数据库执行增加的时候。
[code]server:
port: 10086
spring:
application:
name: ly-registry
datasource:
url: jdbc:mysql://localhost:3306/heima
username: root
password: 123456
hikari:
maximum-pool-size: 30
minimum-idle: 10
eureka:
client:
fetchRegistry: false
registerWithEureka: false
serviceUrl:
defaultZone: http://127.0.0.1:${server.port}/eureka
server:
enableSelfPreservation: false # 关闭自我保护
evictionIntervalTimerInMs: 5000 # 每隔5秒进行一次服务列表清理
run启动类，如图：成功启动Eureka注册中心
3.创建Zuul网关
pom.xml:
[code]<?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"> <parent> <artifactId>leyou</artifactId> <groupId>com.leyou.parent</groupId> <version>1.0.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <groupId>com.leyou.common</groupId> <artifactId>ly-api-gateway</artifactId> <version>1.0.0-SNAPSHOT</version> <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-netflix-eureka-client</artifactId> </dependency> <!--是springboot提供的微服务检测接口，默认对外提供几个接口：/info--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> </dependencies> </project>
启动类：LyApiGateway
[code]package com.leyou;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
/**
* @author: Lucifer
* @create: 2018-10-12 01:32
* @description:
**/
@SpringBootApplication
@EnableDiscoveryClient
@EnableZuulProxy
public class LyApiGateway {
public static void main(String[] args) {
SpringApplication.run(LyApiGateway.class, args);
}
}
网关的配置文件：application.yml:
[code]server:
port: 10010
spring:
application:
name: api-gateway
datasource:
url: jdbc:mysql://localhost:3306/heima
username: root
password: 123456
hikari:
maximum-pool-size: 30
minimum-idle: 10
eureka:
client:
serviceUrl:
defaultZone: http://127.0.0.1:10086/eureka
registryFetchIntervalSeconds: 5
instance:
preferIpAddress: true
ipAddress: 127.0.0.1
instanceId: ${spring.application.name}:${server.port}
zuul:
prefix: /api # 添加路由前缀
retryable: true
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
run启动类：如图：成功运行
4.创建商品微服务
在ly-item中创建两个子工程：
-
ly-item-interface：主要是对外暴露的接口及相关实体类
-
ly-item-service：所有业务逻辑及内部使用接口
pom.xml:
[code]<?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">
<parent>
<artifactId>ly-item</artifactId>
<groupId>com.leyou.service</groupId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<groupId>com.leyou.service</groupId>
<artifactId>ly-item-service</artifactId>
<version>1.0.0-SNAPSHOT</version>
<dependencies>
<!--Eureka客户端-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<!--web启动器-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- mybatis启动器 -->
<dependency>
<groupId>org.mybatis.spring.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>
<dependency>
<groupId>com.leyou.service</groupId>
<artifactId>ly-item-interface</artifactId>
<version>${leyou.latest.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
</dependencies>
</project>
启动类：LyItemService
[code]package com.leyou;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
/**
* @author: Lucifer
* @create: 2018-10-12 01:38
* @description:
**/
@SpringBootApplication
@EnableDiscoveryClient
public class LyItemService {
public static void main(String[] args) {
SpringApplication.run(LyItemService.class, args);
}
}
配置文件：application.yml:
[code]server:
port: 8081
spring:
application:
name: item-service
datasource:
url: jdbc:mysql://localhost:3306/heima
username: root
password: 123456
hikari:
maximum-pool-size: 30
minimum-idle: 10
eureka:
client:
serviceUrl:
defaultZone: http://127.0.0.1:10086/eureka
instance:
leaseRenewalIntervalInSeconds: 5 # 每隔5秒发送一次心跳
leaseExpirationDurationInSeconds: 10 # 10秒不发送就过期
preferIpAddress: true
ipAddress: 127.0.0.1
instanceId: ${spring.application.name}:${server.port}
run启动类：如图，成功运行
然后访问浏览器http://127.0.0.1:10086/，如图：
服务成功注册！！！！
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