在 Spring boot的应用里，强大的Spring提供的IOC容器，提供了很方便的自动装载Service和Component的功能
使用
@Autowire
或者
@resource
等方式，可以很方便简单的对组件里的字段进行自动装载
在Golang里，由于天生语言的特点，在面向对象的代码实现上没有 java 用的那么方便，特别是其中都是以 struct 的方式来封装对象，结合着func的定义来实现接口的继承，写起代码来总觉得没有java里写springApplication来的那么方便。
找到boot4go这个小项目，其中提供了简单的自动装载功能和 yaml 文件的配置管理功能。
项目地址
Autoconfiguration
apiVersion: policy/v1beta1
kind: Pod SecurityPolicy
metadata:
name: mysql-snapshot
version: v1.0.1
major: 1
tag:
hello: TAG-HELLO-A
hello2: TAG-HELLO-B
spec:
privileged: false
allowPrivilegeEscalation: false
volumes:
- "*"
- "*.json"
hostNetwork: false
hostIPC: false
hostPID: false
runAsUser:
rule1: RunAsAny1
rule2: RunAsAny2
rule3: RunAsAny3
seLinux :
rule: RunAsAny
supplemental Groups:
rule: RunAsAny
fsGroup:
rule: RunAsAny
func TestContextConfiguration(t *testing.T) {
logger := log4go.LoggerManager.GetLogger("test")
logger.Info("YAML %v", ConfigurationContext.ToMap())
logger.Info("YAML %v", ConfigurationContext.GetValue("${metadata.name}"))
logger.Info("YAML %v", ConfigurationContext.GetValue("${spec.volumes[0]}"))
time.Sleep(10 * time.Second)
}
日志输出
[19:11:28 CST 2022/04/09 677] [INFO][test] (github.com/gohutool/boot4go.TestContextConfiguration:118) YAML map[ALLUSERSPROFILE:C:\ProgramData APPCODE_VM_OPTIONS:E:\BaiduNetdiskDownload\ JetBrains 2022 最 新版本全家桶激活\方式2：激活到2099年补丁\ja-netfilter-all\vmoptions\appcode. vmoptions APPDATA:C:\Users\NST\AppData\Roaming AR:ar CC:gcc CGO_CFLAGS:-O0 -g CGO_ENABLED:1 CLION_VM_OPTIONS:E:\BaiduNetdiskDownload\JetBrains 2022 最新版 本全家桶激活\方式2：激活到2099年补丁\ja-netfilter-all\vmoptions\clion.vmopti ons COMPUTERNAME:NST-PC CXX:g++ ComSpec:C:\WINDOWS\system32\cmd.exe CommonProgramFiles:C:\Program Files\Common Files CommonProgramFiles(x86):C:\Program Files (x86)\Common Files CommonProgramW6432:C:\Program Files\Common Files DATAGRIP_VM_OPTIONS:E:\BaiduNetdiskDownload\JetBrains 2022 最新版本全家桶激活\方式 2：激活到2099年补丁\ja-netfilter-all\vmoptions\datagrip.vmoptions DATASPELL_V M_OPTIONS:E:\BaiduNetdiskDownload\JetBrains 2022 最新版本全家桶激活\方式2：激活到2099年补丁\ja-netfilter-all\vmo ptions\dataspell.vmoptions DriverData:C:\Windows\ System32 \Drivers\DriverData FPS_BROWSER_APP_PROFILE_STRING:Internet Explorer FPS_BROWSER_USER_PROFILE_STRING:Default GATEWAY_VM_OPTIONS:E:\BaiduNetdiskDownload\JetBrains 2022 最新版本 全家桶激活\方式2：激活到2099年补丁\ja-netfilter-all\vmoptions\gateway.vmopti ons GCCGO:gccgo GO111MODULE:on GOAMD64:v1 GOARCH:amd64 GOCACHE:C:\Users\NST\AppData\Local\go-build GOENV:C:\Users\NST\AppData\Roaming\go\env GOEXE:.exe GOHOSTARCH:amd64 GOHOSTOS:windows GOLAND_VM_OPTIONS:E:\BaiduNetdiskDownload\JetBrains 2022 最新版本全家桶激活\方式2：激活到2099年补丁\ja-netfilter-all\v moptions\goland.vmoptions GOMODCACHE:E:\WORK\SOFT\go1.18.windows-amd64\go\pkg\mod GOOS:windows GOPATH:E:\WORK\SOFT\go1.18.windows-amd64\go GOPROXY: GOROOT:E:\WORK\SOFT\go1.18.windows-amd64\go GOSUMDB:sum.golang.org GOTOOLDIR:E:\WORK\SOFT\go1.18.windows-amd64\go\pkg\tool\windows_amd64 GOVERSION:go1.18 GoLand:E:\WORK\SOFT\JetBrains\GoLand 2021.3.3\bin; HOMEDRIVE:C: HOMEPATH:\Users\NST IDEA_INITIAL_DIRECTORY:C:\WINDOWS\System32 IDEA_VM_OPTIONS:E:\BaiduNetdiskDownload\JetBrains 2022 最新版 本全家桶激活\方式2：激活到2099年补丁\ja-netfilter-all\vmoptions\idea.vmoptio ns JAVA_HOME:E:\WORK\SOFT\JDK8-64 JETBRAINSCLIENT_VM_OPTIONS:E:\BaiduNetdiskDownload\JetBrains 2022 最新版本全家桶激活\方式2：激活到2099年补丁\ja-netfilt er-all\vmoptions\jetbrainsclient.vmoptions JETBRAINS_CLIENT_VM_OPTIONS:E:\BaiduNetdiskDownload\JetBrains 2022 最新版本全家桶激活\方式2：激活到2099年补丁\j a-netfilter-all\vmoptions\jetbrains_client.vmoptions LOCALAPPDATA:C:\Users\NST\AppData\Local LOGONSERVER:\\NST-PC MAVEN_HOME:E:\WORK\SOFT\maven-3.6.1 MONGO_HOME:E:\WORK\SOFT\mongodb- win32 -x86_64-windows-5.0.3\ MOZ_PLUGIN_PATH:D:\Program Files (x86)\Foxit Software\Foxit PhantomPDF\plugins\ NPM_PREFIX:E:\WORK\SOFT\nodejs\node_global NUMBER_OF_PROCESSORS:8 OS:Windows_NT OneDrive:C:\Use
[21:40:01 CST 2022/04/09 423] [INFO][boot4go.context.test] (github.com/gohutool/boot4go.TestGet bean :117) mysql-snapshot
[21:40:01 CST 2022/04/09 423] [INFO][boot4go.context.test] (github.com/gohutool/boot4go.TestGetBean:120) [* *.json]
自动装载字段属性
type Test struct {
age int16 `bootable:"${metadata.major}"`
name string `bootable:"${metadata.name}"`
version string `bootable:"${metadata.version}"`
data map[string]any `bootable:"${spec.runAsUser}"`
list []any `bootable:"${spec.volumes}"`
}
日志输出
[21:40:01 CST 2022/04/09 424] [INFO][boot4go.context.test] (github.com/gohutool/boot4go.TestGetBean:129) ↦[rule1:RunAsAny1 rule2:RunAsAny2 rule3:RunAsAny3]
[21:40:01 CST 2022/04/09 424] [INFO][boot4go.context.test] (github.com/gohutool/boot4go.TestGetBean:130) &[* *.json]
[21:40:01 CST 2022/04/09 424] [INFO][boot4go.context.test] (github.com/gohutool/boot4go.TestGetBean:130) 1
[21:40:01 CST 2022/04/09 424] [INFO][boot4go.context.test] (github.com/gohutool/boot4go.TestGetBean:130) mysql-snapshot
[21:40:01 CST 2022/04/09 424] [INFO][boot4go.context.test] (github.com/gohutool/boot4go.TestGetBean:130) v1.0.1
Autowire with nested struct（自动装载嵌套结构体）
type Test struct {
hello IHello `bootable:"aaa"`
hello2 Hello2 `bootable`
data map[string]any `bootable:"${spec.runAsUser}"`
list []any `bootable:"${spec.volumes}"`
}
func (t *Test) sayHello2(w string) string {
return t.hello2.sayHello(w)
}
func (t *Test) sayHello(w string) string {
return t.hello.sayHello(w)
}
type IHello interface {
sayHello(t string) string
}
type Hello struct {
tag string `bootable:"${tag.hello}"`
}
type Hello2 struct {
tag string `bootable:"${tag.hello2}"`
}
func (h *Hello) sayHello(t string) string {
return "Hello " + h.tag + " : " + t
}
func (h *Hello2) sayHello(t string) string {
return "Hello2 " + h.tag + " : " + t
}
func init() {
log4go.LoggerManager.InitWithDefaultConfig()
d, _ := Context. Registry Bean("aaa", Hello{})
logger = log4go.LoggerManager.GetLogger("boot4go.context.test")
}
func TestGetBean(t *testing.T) {
// Autowired Bean
bean, _ := Context.GetBean(Test{})
t1 := bean.(*Test)
logger.Info(t1.hello)
logger.Info("Hello2=" + t1.sayHello2("AAA"))
logger.Info("Hello=" + t1.sayHello("AAA"))
}
日志输出
=== RUN TestGetBean
[21:40:01 CST 2022/04/09 423] [INFO][boot4go.context.test] (github.com/gohutool/boot4go.TestGetBean:117) 0xc00013bbb8
[21:40:01 CST 2022/04/09 423] [INFO][boot4go.context.test] (github.com/gohutool/boot4go.TestGetBean:118) Hello2=Hello2 TAG-HELLO-B : AAA
[21:40:01 CST 2022/04/09 424] [INFO][boot4go.context.test] (github.com/gohutool/boot4go.TestGetBean:126) Hello=Hello TAG-HELLO-A : AAA
--- PASS: TestGetBean (10.00s)
PASS
Debugger finished with the exit code 0
boot4go目前在刚刚开始, 还会持续增加新的功能。目标sprincloud -》 gocloud
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