一、分布式开发

一、分布式开发

将之前的项目导入到 spring cloud 的项目中

1. 目标

会员登录注册
发起众筹项目
展示众筹项目
支持众筹项目

2. 结构图

3. 需要创建的工程 com.yixuexi

父工程，聚合工程：atcrowdfunding07_member_parent （唯一的pom工程）
注册中心：atcrowdfunding08_member_eureka
实体类模块：atcowdfunding09_member_entity
MySQL数据服务：atcrowdfunding10_member_mysql_provider
Redis数据服务：atcrowdfunding11_member_redis_provider
会员中心：atcrowdfunding12_member_authentication_consumer
项目维护：atcrowdfunding13_member_project_consumer
订单维护：atcrowdfunding14_member_order_consumer
支付功能：atcrowdfunding15_member_pay_consumer
网关：atcrowdfunding16-member-zuul

API模块：atcrowdfunding17-member-api

4. 父工程管理依赖版本 Pom

```xml com.yixuexi atcrowdfunding07_member_parent 1.0-SNAPSHOT

pom

<!-- 导入 SpringCloud 需要使用的依赖信息 -->
<dependency>
  <groupId>org.springframework.cloud</groupId>
  <artifactId>spring-cloud-dependencies</artifactId>
  <version>Greenwich.SR2</version>
  <type>pom</type>
  <!-- import 依赖范围表示将 spring-cloud-dependencies 包中的依赖信息导入 -->
  <scope>import</scope>
</dependency>
<!-- 导入 SpringBoot 需要使用的依赖信息 -->
<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-dependencies</artifactId>
  <version>2.1.6.RELEASE</version>
  <type>pom</type>
  <scope>import</scope>
</dependency>
<dependency>
  <groupId>org.mybatis.spring.boot</groupId>
  <artifactId>mybatis-spring-boot-starter</artifactId>
  <version>2.1.0</version>
</dependency>
<dependency>
  <groupId>com.alibaba</groupId>
  <artifactId>druid</artifactId>
  <version>1.0.5</version>
</dependency>

../atcrowdfunding08_member_eureka ../atcowdfunding09_member_entity ../atcrowdfunding10_member_mysql_provider ../atcrowdfunding11_member_redis_provider ../atcrowdfunding12_member_authentication_consumer ../atcrowdfunding13_member_project_consumer ../atcrowdfunding14_member_order_consumer ../atcrowdfunding15_member_pay_consumer

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## **5. 搭建环境约定**
包名约定：<br />新建的包都是 com.yixuexi.crowd 的子包<br />主启动类类名:<br />CrowdMainClass<br />端口号：

- atcrowdfunding08-member-eureka 1000 
- atcrowdfunding10-member-mysql-provider 2000 
- atcrowdfunding11-member-redis-provider 3000 
- atcrowdfunding12-member-authentication-consumer 4000 
- atcrowdfunding13-member-project-consumer 5000 
- atcrowdfunding14-member-order-consumer 7000 
- atcrowdfunding15-member-pay-consumer 8000 
- atcrowdfunding16-member-zuul 80

---

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# 二、搭建Eureka
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## 1. 加入依赖
```xml
<dependency>
  <groupId>org.springframework.cloud</groupId>
  <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>

2. 添加主启动类

添加@EnableEurekaServer 注解

/**
 * @date: 2021/3/12   15:18
 * @author: 易学习
 */
@EnableEurekaServer
@SpringBootApplication
public class CrowdMainClass {
    public static void main(String[] args) {
        SpringApplication.run(CrowdMainClass.class);
    }
}

3. 配置yaml

eureka:
  instance:
    hostname: localhost
  client:
    register-with-eureka: false
    fetch-registry: false
    service-url:
      defaultZone: http://${eureka.instance.hostname}/${server.port}/eureka

4. 如果Eureka启动报错，添加下面依赖

因为JDK版本问题，。。。

<dependency>
  <groupId>javax.xml.bind</groupId>
  <artifactId>jaxb-api</artifactId>
  <version>2.3.0</version>
</dependency>
<dependency>
  <groupId>com.sun.xml.bind</groupId>
  <artifactId>jaxb-impl</artifactId>
  <version>2.3.0</version>
</dependency>
<dependency>
  <groupId>org.glassfish.jaxb</groupId>
  <artifactId>jaxb-runtime</artifactId>
  <version>2.3.0</version>
</dependency>
<dependency>
  <groupId>javax.activation</groupId>
  <artifactId>activation</artifactId>
  <version>1.1.1</version>
</dependency>

Java项目经验

1. 分布式开发 & Eureka