一、springcloud 介绍

1、什么是 springcloud

SpringCloud 是微服务一站式服务解决方案，微服务全家桶。它是微服务开发的主流技术栈。它采用了名称，而非数字版本号。

SpringCloud 和 springCloud Alibaba 目前是最主流的微服务框架组合。

2、SpringCloud 版本选择

选用 springboot 和 springCloud 版本有约束，不按照它的约束会有冲突。

Cloud Release Train Boot Version
Hoxton 2.2.x, 2.3.x (Starting with SR5)
Greenwich 2.1.x
Finchley 2.0.x
Finchley 1.5.x
Dalston 1.5.x

查看版本对应关系：https://start.spring.io/actuator/info

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
{
	"git": {
		"branch": "986e72b4a38a4dd320be9bf55b47e54f7ccc0095",
		"commit": {
			"id": "986e72b",
			"time": "2023-07-12T18:06:05Z"
		}
	},
	"build": {
		"version": "0.0.1-SNAPSHOT",
		"artifact": "start-site",
		"versions": {
			"spring-boot": "3.1.1",
			"initializr": "0.20.1-SNAPSHOT"
		},
		"name": "start.spring.io website",
		"time": "2023-07-12T18:08:16.738Z",
		"group": "io.spring.start"
	},
	"bom-ranges": {
		"codecentric-spring-boot-admin": {
			"2.6.8": "Spring Boot >=2.6.0 and <2.7.0-M1",
			"2.7.4": "Spring Boot >=2.7.0-M1 and <3.0.0-M1",
			"3.0.4": "Spring Boot >=3.0.0-M1 and <3.1.0-M1",
			"3.1.1": "Spring Boot >=3.1.0-M1 and <3.2.0-M1"
		},
		"hilla": {
			"2.1.1": "Spring Boot >=3.1.0-M1 and <3.2.0-M1"
		},
		"solace-spring-boot": {
			"1.2.2": "Spring Boot >=2.6.0 and <3.0.0-M1",
			"2.0.0": "Spring Boot >=3.0.0-M1"
		},
		"solace-spring-cloud": {
			"2.3.2": "Spring Boot >=2.6.0 and <3.0.0-M1",
			"3.0.0": "Spring Boot >=3.0.0-M1"
		},
		"spring-cloud": {
			"2021.0.8": "Spring Boot >=2.6.0 and <3.0.0",
			"2022.0.3": "Spring Boot >=3.0.0 and <3.2.0-M1"
		},
		"spring-cloud-azure": {
			"4.9.0": "Spring Boot >=2.6.0 and <3.0.0-M1",
			"5.3.0": "Spring Boot >=3.0.0-M1 and <3.2.0-M1"
		},
		"spring-cloud-gcp": {
			"3.5.4": "Spring Boot >=2.6.0 and <3.0.0-M1",
			"4.5.1": "Spring Boot >=3.0.0-M1 and <3.2.0-M1"
		},
		"spring-cloud-services": {
			"3.4.0": "Spring Boot >=2.6.0 and <2.7.0-M1",
			"3.5.0": "Spring Boot >=2.7.0-M1 and <3.0.0-M1",
			"4.0.0": "Spring Boot >=3.0.0 and <3.1.0-M1"
		},
		"spring-modulith": {
			"1.0.0-M1": "Spring Boot >=3.1.0 and <3.2.0-M1"
		},
		"spring-shell": {
			"2.1.11": "Spring Boot >=2.7.0 and <3.0.0-M1",
			"3.0.6": "Spring Boot >=3.0.0 and <3.1.0-M1",
			"3.1.2": "Spring Boot >=3.1.0 and <3.2.0-M1"
		},
		"vaadin": {
			"23.2.15": "Spring Boot >=2.6.0 and <2.7.0-M1",
			"23.3.16": "Spring Boot >=2.7.0-M1 and <3.0.0-M1",
			"24.0.9": "Spring Boot >=3.0.0-M1 and <3.1.0-M1",
			"24.1.2": "Spring Boot >=3.1.0-M1 and <3.2.0-M1"
		},
		"wavefront": {
			"2.2.2": "Spring Boot >=2.6.0 and <2.7.0-M1",
			"2.3.4": "Spring Boot >=2.7.0-M1 and <3.0.0-M1",
			"3.0.1": "Spring Boot >=3.0.0-M1 and <3.1.0-M1"
		}
	},
	"dependency-ranges": {
		"okta": {
			"2.1.6": "Spring Boot >=2.6.0 and <3.0.0-M1",
			"3.0.4": "Spring Boot >=3.0.0-M1 and <3.2.0-M1"
		},
		"mybatis": {
			"2.2.2": "Spring Boot >=2.6.0 and <2.7.0-M1",
			"2.3.1": "Spring Boot >=2.7.0-M1 and <3.0.0-M1",
			"3.0.2": "Spring Boot >=3.0.0-M1"
		},
		"pulsar": {
			"0.2.0": "Spring Boot >=3.0.0 and <3.2.0-M1"
		},
		"pulsar-reactive": {
			"0.2.0": "Spring Boot >=3.0.0 and <3.2.0-M1"
		},
		"camel": {
			"3.17.0": "Spring Boot >=2.6.0 and <2.7.0-M1",
			"3.20.6": "Spring Boot >=2.7.0.M1 and <3.0.0-M1",
			"4.0.0-RC1": "Spring Boot >=3.0.0-M1 and <3.2.0-M1"
		},
		"picocli": {
			"4.7.0": "Spring Boot >=2.6.0 and <3.1.0-M1"
		},
		"open-service-broker": {
			"3.5.0": "Spring Boot >=2.6.0 and <2.7.0-M1"
		}
	}
}

Ps：cloud 版本决定了 boot 版本

3、微服务停更说明

以前：

现在：

1、Eureka 停用,可以使用 zk 作为服务注册中心

2、服务调用,Ribbon 准备停更,代替为 LoadBalance

3、Feign 改为 OpenFeign

4、Hystrix 停更,改为 resilence4j,或者阿里巴巴的 sentienl

5、Zuul 改为 gateway

6、服务配置 Config 改为 Nacos

7、服务总线 Bus 改为 Nacos

4、要学点

参考资料：springcloud springcloud 中文文档 springboot v2.2.2

5、课程所用软件版本

cloud Hoxton.SR1
boot 2.2.2.RELEASE
cloud alibaba 2.1.0.RELEASE
java java8
maven 3.5 及以上
mysql 5.7 及以上

相关链接：微服务架构编码构建