# spring-cloud-learning

**Repository Path**: alexpycn/spring-cloud-learning

## Basic Information

- **Project Name**: spring-cloud-learning
- **Description**: No description available
- **Primary Language**: Java
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2022-03-08
- **Last Updated**: 2022-08-15

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# Spring Cloud Learning

### 开发环境

- Mac 12.2.x
- IDEA 2021.3.x
- MySQL 8.x
- RabbitMQ 3.7.x
- Redis 5.x
- Docker 20.x
- PostMan 9.x
- Chrome 96.x
- SpringCloud Hoxton.SR12
- SpringBoot 2.3.12.RELEASE

### 微服务组件

| Name       | Version | Description  |
|:-----------|:--------|:-------------|
| Eureka     | 1.10.14 | 注册中心         |
| Config     | 2.2.8   | 配置中心         |
| Zuul       | 1.3.1   | 网关           |
| Gateway    | 2.2.9   | 网关           |
| Ribbon     | 2.3.0   | 负载均衡         |
| OpenFeign  | 3.8.0   | 远程调用         |
| hystrix    | 2.2.9   | 熔断降级         |

---

### 端口分配

```text
MySQL      3306
RabbitMQ   5672
Redis      6379

Zuul       8081     172.18.0.81
Gateway    8081     172.18.0.81
Job        8082     172.18.0.82
Eureka     8085     172.18.0.85
Config     8888     172.18.0.88

serviceA   10010    172.18.0.10
serviceB   10020    172.18.0.20
serviceC   10030    172.18.0.30
```

---

### 数据库初始化

```text
-- 创建数据库
CREATE DATABASE IF NOT EXISTS `cooboot` default character set utf8mb4 collate utf8mb4_unicode_ci;

-- 创建用户
CREATE USER IF NOT EXISTS 'cooboot'@'%' IDENTIFIED BY '123456';

-- 授权
use mysql;
GRANT ALL PRIVILEGES ON `cooboot`.* TO 'cooboot'@'%';
```

---

### 设置 hosts

```text
vim /etc/hosts
本机IP eureka1
本机IP config1
本机IP server1
本机IP database1
本机IP redis1
本机IP rabbitmq1
本机IP job1
```

---

### Docker 新建自定义网络

- 支持自定义固定 IP (默认网络不支持)

```text
docker network create --subnet=172.18.0.0/16 cooboot
```

- 网络列表

```text
docker network ls
```

- 删除网络

```text
docker network rm {ID}
```

---

### 启动顺序

[Redis](run-redis.sh)

[RabbitMQ](run-rabbitmq.sh)

**Docker 启动除 Eureka Config 外的其他服务, 需要修改 bootstrap.yml -> sit**

- 1 Eureka 注册中心
- 2 Config 配置中心
- 3 Zuul / Gateway 网关
- 4 ServiceA / ServiceB / ServiceC / ... 其他服务

### Test

```text
# 直接调用
server1:8085/hello
server1:8888/hello
server1:8081/hello
server1:10010/hello
server1:10020/hello
server1:10030/hello

# 网关调用
http://server1:28081/api/a/hello
http://server1:28081/api/b/hello
http://server1:28081/api/c/hello

# 服务间调用 a -> b -> c
http://server1:28081/api/a/a
http://server1:28081/api/b/b
http://server1:28081/api/c/c
```