配置方案的实现

config/app.go

@@ -0,0 +1,33 @@
+// Package config 站点配置信息
+package config
+
+import "github.com/runningwater/gohub/pkg/config"
+
+
+func init() {
+    config.Add("app", func() map[string] any {
+        return map[string]any{
+
+            // 应用名称
+            "name": config.Env("APP_NAME", "Gohub"),
+
+            // 当前环境，用以区分多环境，一般为 local, stage, production, test
+            "env": config.Env("APP_ENV", "production"),
+
+            // 是否进入调试模式
+            "debug": config.Env("APP_DEBUG", false),
+
+            // 应用服务端口
+            "port": config.Env("APP_PORT", "3000"),
+
+            // 加密会话、JWT 加密
+            "key": config.Env("APP_KEY", "33446a9dcf9ea060a0a6532b166da32f304af0de"),
+
+            // 用以生成链接
+            "url": config.Env("APP_URL", "http://localhost:3000"),
+
+            // 设置时区，JWT 里会使用，日志记录里也会使用到
+            "timezone": config.Env("TIMEZONE", "Asia/Shanghai"),
+        }
+    })
+}

config/config.go

@@ -0,0 +1,6 @@
+// Package config 存放程序所有的配置信息
+package config
+
+// Initialize 触发加载 config 包的所有 init 函数
+func Initialize() {
+}

go.mod

@@ -2,18 +2,24 @@ module github.com/runningwater/gohub
 
 go 1.24.2
 
-require github.com/gin-gonic/gin v1.10.0
+require (
+	github.com/gin-gonic/gin v1.10.0
+	github.com/spf13/cast v1.7.1
+	github.com/spf13/viper v1.20.1
+)
 
 require (
 	github.com/bytedance/sonic v1.11.6 // indirect
 	github.com/bytedance/sonic/loader v0.1.1 // indirect
 	github.com/cloudwego/base64x v0.1.4 // indirect
 	github.com/cloudwego/iasm v0.2.0 // indirect
+	github.com/fsnotify/fsnotify v1.8.0 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.3 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect
 	github.com/go-playground/universal-translator v0.18.1 // indirect
 	github.com/go-playground/validator/v10 v10.20.0 // indirect
+	github.com/go-viper/mapstructure/v2 v2.2.1 // indirect
 	github.com/goccy/go-json v0.10.2 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
@@ -21,14 +27,21 @@ require (
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
-	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.3 // indirect
+	github.com/sagikazarmark/locafero v0.7.0 // indirect
+	github.com/sourcegraph/conc v0.3.0 // indirect
+	github.com/spf13/afero v1.12.0 // indirect
+	github.com/spf13/pflag v1.0.6 // indirect
+	github.com/subosito/gotenv v1.6.0 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.2.12 // indirect
+	go.uber.org/atomic v1.9.0 // indirect
+	go.uber.org/multierr v1.9.0 // indirect
 	golang.org/x/arch v0.8.0 // indirect
-	golang.org/x/crypto v0.23.0 // indirect
-	golang.org/x/net v0.25.0 // indirect
-	golang.org/x/sys v0.20.0 // indirect
-	golang.org/x/text v0.15.0 // indirect
-	google.golang.org/protobuf v1.34.1 // indirect
+	golang.org/x/crypto v0.32.0 // indirect
+	golang.org/x/net v0.33.0 // indirect
+	golang.org/x/sys v0.29.0 // indirect
+	golang.org/x/text v0.21.0 // indirect
+	google.golang.org/protobuf v1.36.1 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -9,6 +9,10 @@ github.com/cloudwego/iasm v0.2.0/go.mod h1:8rXZaNYT2n95jn+zTI1sDr+IgcD2GVs0nlbbQ
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
+github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
+github.com/fsnotify/fsnotify v1.8.0 h1:dAwr6QBTBZIkG8roQaJjGof0pp0EeF+tNV7YBP3F/8M=
+github.com/fsnotify/fsnotify v1.8.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
 github.com/gabriel-vasile/mimetype v1.4.3 h1:in2uUcidCuFcDKtdcBxlR0rJ1+fsokWf+uqxgUFjbI0=
 github.com/gabriel-vasile/mimetype v1.4.3/go.mod h1:d8uq/6HKRL6CGdk+aubisF/M5GcPfT7nKyLpA0lbSSk=
 github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
@@ -23,10 +27,12 @@ github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJn
 github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY=
 github.com/go-playground/validator/v10 v10.20.0 h1:K9ISHbSaI0lyB2eWMPJo+kOS/FBExVwjEviJTixqxL8=
 github.com/go-playground/validator/v10 v10.20.0/go.mod h1:dbuPbCMFw/DrkbEynArYaCwl3amGuJotoKCe95atGMM=
+github.com/go-viper/mapstructure/v2 v2.2.1 h1:ZAaOCxANMuZx5RCeg0mBdEZk7DZasvvZIxtHqx8aGss=
+github.com/go-viper/mapstructure/v2 v2.2.1/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM=
 github.com/goccy/go-json v0.10.2 h1:CrxCmQqYDkv1z7lO7Wbh2HN93uovUHgrECaO5ZrCXAU=
 github.com/goccy/go-json v0.10.2/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
-github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
-github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
@@ -34,6 +40,10 @@ github.com/klauspost/cpuid/v2 v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa02
 github.com/klauspost/cpuid/v2 v2.2.7 h1:ZWSB3igEs+d0qvnxR/ZBzXVmxkgt8DdzP6m9pfuVLDM=
 github.com/klauspost/cpuid/v2 v2.2.7/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=
 github.com/knz/go-libedit v1.10.1/go.mod h1:MZTVkCWyz0oBc7JOWP3wNAzd002ZbM/5hgShxwh4x8M=
+github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
+github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
 github.com/leodido/go-urn v1.4.0/go.mod h1:bvxc+MVxLKB4z00jd1z+Dvzr47oO32F/QSNjSBOlFxI=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
@@ -43,45 +53,62 @@ github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
 github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
-github.com/pelletier/go-toml/v2 v2.2.2 h1:aYUidT7k73Pcl9nb2gScu7NSrKCSHIDE89b3+6Wq+LM=
-github.com/pelletier/go-toml/v2 v2.2.2/go.mod h1:1t835xjRzz80PqgE6HHgN2JOsmgYu/h4qDAS4n929Rs=
+github.com/pelletier/go-toml/v2 v2.2.3 h1:YmeHyLY8mFWbdkNWwpr+qIL2bEqT0o95WSdkNHvL12M=
+github.com/pelletier/go-toml/v2 v2.2.3/go.mod h1:MfCQTFTvCcUyyvvwm1+G6H/jORL20Xlb6rzQu9GuUkc=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
+github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
+github.com/sagikazarmark/locafero v0.7.0 h1:5MqpDsTGNDhY8sGp0Aowyf0qKsPrhewaLSsFaodPcyo=
+github.com/sagikazarmark/locafero v0.7.0/go.mod h1:2za3Cg5rMaTMoG/2Ulr9AwtFaIppKXTRYnozin4aB5k=
+github.com/sourcegraph/conc v0.3.0 h1:OQTbbt6P72L20UqAkXXuLOj79LfEanQ+YQFNpLA9ySo=
+github.com/sourcegraph/conc v0.3.0/go.mod h1:Sdozi7LEKbFPqYX2/J+iBAM6HpqSLTASQIKqDmF7Mt0=
+github.com/spf13/afero v1.12.0 h1:UcOPyRBYczmFn6yvphxkn9ZEOY65cpwGKb5mL36mrqs=
+github.com/spf13/afero v1.12.0/go.mod h1:ZTlWwG4/ahT8W7T0WQ5uYmjI9duaLQGy3Q2OAl4sk/4=
+github.com/spf13/cast v1.7.1 h1:cuNEagBQEHWN1FnbGEjCXL2szYEXqfJPbP2HNUaca9Y=
+github.com/spf13/cast v1.7.1/go.mod h1:ancEpBxwJDODSW/UG4rDrAqiKolqNNh2DX3mk86cAdo=
+github.com/spf13/pflag v1.0.6 h1:jFzHGLGAlb3ruxLB8MhbI6A8+AQX/2eW4qeyNZXNp2o=
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+github.com/spf13/viper v1.20.1 h1:ZMi+z/lvLyPSCoNtFCpqjy0S4kPbirhpTMwl8BkW9X4=
+github.com/spf13/viper v1.20.1/go.mod h1:P9Mdzt1zoHIG8m2eZQinpiBjo6kCmZSKBClNNqjJvu4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
-github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
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 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
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-github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
-github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
-github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
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+go.uber.org/multierr v1.9.0 h1:7fIwc/ZtS0q++VgcfqFDxSBZVv/Xo49/SYnDFupUwlI=
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 golang.org/x/arch v0.0.0-20210923205945-b76863e36670/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
 golang.org/x/arch v0.8.0 h1:3wRIsP3pM4yUptoR96otTUOXI367OS0+c9eeRi9doIc=
 golang.org/x/arch v0.8.0/go.mod h1:FEVrYAQjsQXMVJ1nsMoVVXPZg6p2JE2mx8psSWTDQys=
-golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI=
-golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
-golang.org/x/net v0.25.0 h1:d/OCCoBEUq33pjydKrGQhw7IlUPI2Oylr+8qLx49kac=
-golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
+golang.org/x/crypto v0.32.0 h1:euUpcYgM8WcP71gNpTqQCn6rC2t6ULUPiOzfWaXVVfc=
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 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
-golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/text v0.15.0 h1:h1V/4gjBv8v9cjcR6+AR5+/cIYK5N/WAgiv4xlsEtAk=
-golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-google.golang.org/protobuf v1.34.1 h1:9ddQBjfCyZPOHPUiPxpYESBLc+T8P3E+Vo4IbKZgFWg=
-google.golang.org/protobuf v1.34.1/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+golang.org/x/sys v0.29.0 h1:TPYlXGxvx1MGTn2GiZDhnjPA9wZzZeGKHHmKhHYvgaU=
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+google.golang.org/protobuf v1.36.1 h1:yBPeRvTftaleIgM3PZ/WBIZ7XM/eEYAaEyCwvyjq/gk=
+google.golang.org/protobuf v1.36.1/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

main.go

@@ -1,22 +1,34 @@
 package main
 
 import (
+	"flag"
 	"fmt"
 
 	"github.com/gin-gonic/gin"
 	"github.com/runningwater/gohub/bootstrap"
+	appConfig "github.com/runningwater/gohub/config"
+	"github.com/runningwater/gohub/pkg/config"
 )
 
+func init() {
+	// 加载 config 目录下的配置信息
+	appConfig.Initialize()
+}
+
 func main() {
-	// 设置 Gin 模式为开发模式
-	gin.SetMode(gin.DebugMode)
-	
+	//  配置初始化，依赖命令行 --env 参数
+	var env string
+	flag.StringVar(&env, "env", "", "加载.env 文件，如 --env=local，加载的是 .env.local 文件")
+	flag.Parse()
+	config.InitConfig(env)
+
+	// Gin 框架初始化
 	r:= gin.New()
 
 	// 初始化路由绑定
 	bootstrap.SetupRoute(r)
 
-	err := r.Run(":8080")
+	err := r.Run(":" + config.Get("app.port"))
 	if err != nil {
 		fmt.Println("启动失败", err.Error())
 	}

pkg/config/config.go

@@ -0,0 +1,139 @@
+// Package config 负责配置信息
+package config
+
+import (
+	"os"
+
+	"github.com/runningwater/gohub/pkg/helpers"
+
+	"github.com/spf13/cast"
+	viperlib "github.com/spf13/viper" // 自定义包名，避免与内置 viper 实例冲突
+)
+
+// viper 库实例
+var viper *viperlib.Viper
+
+// ConfigFunc 动态加载配置信息
+type ConfigFunc func() map[string]any
+
+// ConfigFuncs 先加载到此数组，loadConfig 再动态生成配置信息
+var ConfigFuncs map[string]ConfigFunc
+
+func init() {
+
+    // 1. 初始化 Viper 库
+    viper = viperlib.New()
+    // 2. 配置类型，支持 "json", "toml", "yaml", "yml", "properties",
+    //             "props", "prop", "env", "dotenv"
+    viper.SetConfigType("env")
+    // 3. 环境变量配置文件查找的路径，相对于 main.go
+    viper.AddConfigPath(".")
+    // 4. 设置环境变量前缀，用以区分 Go 的系统环境变量
+    viper.SetEnvPrefix("appenv")
+    // 5. 读取环境变量（支持 flags）
+    viper.AutomaticEnv()
+
+    ConfigFuncs = make(map[string]ConfigFunc)
+}
+
+// InitConfig 初始化配置信息，完成对环境变量以及 config 信息的加载
+func InitConfig(env string) {
+    // 1. 加载环境变量
+    loadEnv(env)
+    // 2. 注册配置信息
+    loadConfig()
+}
+
+func loadConfig() {
+    for name, fn := range ConfigFuncs {
+        viper.Set(name, fn())
+    }
+}
+
+func loadEnv(envSuffix string) {
+
+    // 默认加载 .env 文件，如果有传参 --env=name 的话，加载 .env.name 文件
+    envPath := ".env"
+    if len(envSuffix) > 0 {
+        filepath := ".env." + envSuffix
+        if _, err := os.Stat(filepath); err == nil {
+            // 如 .env.testing 或 .env.stage
+            envPath = filepath
+        }
+    }
+
+    // 加载 env
+    viper.SetConfigName(envPath)
+    if err := viper.ReadInConfig(); err != nil {
+        panic(err)
+    }
+
+    // 监控 .env 文件，变更时重新加载
+    viper.WatchConfig()
+}
+
+// Env 读取环境变量，支持默认值
+func Env(envName string, defaultValue ...any) any {
+    if len(defaultValue) > 0 {
+        return internalGet(envName, defaultValue[0])
+    }
+    return internalGet(envName)
+}
+
+// Add 新增配置项
+func Add(name string, configFn ConfigFunc) {
+    ConfigFuncs[name] = configFn
+}
+
+// Get 获取配置项
+// 第一个参数 path 允许使用点式获取，如：app.name
+// 第二个参数允许传参默认值
+func Get(path string, defaultValue ...any) string {
+    return GetString(path, defaultValue...)
+}
+
+func internalGet(path string, defaultValue ...any) any {
+    // config 或者环境变量不存在的情况
+    if !viper.IsSet(path) || helpers.Empty(viper.Get(path)) {
+        if len(defaultValue) > 0 {
+            return defaultValue[0]
+        }
+        return nil
+    }
+    return viper.Get(path)
+}
+
+// GetString 获取 String 类型的配置信息
+func GetString(path string, defaultValue ...any) string {
+    return cast.ToString(internalGet(path, defaultValue...))
+}
+
+// GetInt 获取 Int 类型的配置信息
+func GetInt(path string, defaultValue ...any) int {
+    return cast.ToInt(internalGet(path, defaultValue...))
+}
+
+// GetFloat64 获取 float64 类型的配置信息
+func GetFloat64(path string, defaultValue ...any) float64 {
+    return cast.ToFloat64(internalGet(path, defaultValue...))
+}
+
+// GetInt64 获取 Int64 类型的配置信息
+func GetInt64(path string, defaultValue ...any) int64 {
+    return cast.ToInt64(internalGet(path, defaultValue...))
+}
+
+// GetUint 获取 Uint 类型的配置信息
+func GetUint(path string, defaultValue ...any) uint {
+    return cast.ToUint(internalGet(path, defaultValue...))
+}
+
+// GetBool 获取 Bool 类型的配置信息
+func GetBool(path string, defaultValue ...any) bool {
+    return cast.ToBool(internalGet(path, defaultValue...))
+}
+
+// GetStringMapString 获取结构数据
+func GetStringMapString(path string) map[string]string {
+    return viper.GetStringMapString(path)
+}

pkg/helpers/helpers.go

@@ -0,0 +1,31 @@
+// Package helpers 存放辅助方法
+package helpers
+
+import (
+	"reflect"
+)
+
+// Empty 类似于 PHP 的 empty() 函数
+func Empty(val any) bool {
+    if val == nil {
+        return true
+    }
+    v := reflect.ValueOf(val)
+    switch v.Kind() {
+    case reflect.String, reflect.Array:
+        return v.Len() == 0
+    case reflect.Map, reflect.Slice:
+        return v.Len() == 0 || v.IsNil()
+    case reflect.Bool:
+        return !v.Bool()
+    case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+        return v.Int() == 0
+    case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+        return v.Uint() == 0
+    case reflect.Float32, reflect.Float64:
+        return v.Float() == 0
+    case reflect.Interface, reflect.Ptr:
+        return v.IsNil()
+    }
+    return reflect.DeepEqual(val, reflect.Zero(v.Type()).Interface())
+}