diff --git a/examples/go.mod b/examples/go.mod
index f4c97ce6e..c1f60ba52 100644
--- a/examples/go.mod
+++ b/examples/go.mod
@@ -45,6 +45,8 @@ require (
 	google.golang.org/grpc v1.44.0
 	google.golang.org/grpc/examples v0.0.0-20220105183818-2fb1ac854b20 // indirect
 	google.golang.org/protobuf v1.27.1
+	gorm.io/driver/mysql v1.3.2
+	gorm.io/gorm v1.23.1
 )
 
 replace (
diff --git a/examples/go.sum b/examples/go.sum
index 63b77d855..ba3a76044 100644
--- a/examples/go.sum
+++ b/examples/go.sum
@@ -215,7 +215,6 @@ github.com/go-logr/logr v1.2.1/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbV
 github.com/go-logr/stdr v1.2.0 h1:j4LrlVXgrbIWO83mmQUnK0Hi+YnbD+vzrE1z/EphbFE=
 github.com/go-logr/stdr v1.2.0/go.mod h1:YkVgnZu1ZjjL7xTxrfm/LLZBfkhTqSR1ydtm6jTKKwI=
 github.com/go-ole/go-ole v1.2.5/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
-github.com/go-openapi/inflect v0.19.0 h1:9jCH9scKIbHeV9m12SmPilScz6krDxKRasNNSNPXu/4=
 github.com/go-openapi/inflect v0.19.0/go.mod h1:lHpZVlpIQqLyKwJ4N+YSc9hchQy/i12fJykb83CRBH4=
 github.com/go-playground/assert/v2 v2.0.1 h1:MsBgLAaY856+nPRTKrp3/OZK38U/wa0CcBYNjji3q3A=
 github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
@@ -334,7 +333,6 @@ github.com/google/pprof v0.0.0-20210601050228-01bbb1931b22/go.mod h1:kpwsk12EmLe
 github.com/google/pprof v0.0.0-20210609004039-a478d1d731e9/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
 github.com/google/pprof v0.0.0-20210720184732-4bb14d4b1be1/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
 github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
-github.com/google/subcommands v1.0.1 h1:/eqq+otEXm5vhfBrbREPCSVQbvofip6kIz+mX5TUH7k=
 github.com/google/subcommands v1.0.1/go.mod h1:ZjhPrFU+Olkh9WazFPsl27BQ4UPiG37m3yTrtFlrHVk=
 github.com/google/uuid v1.0.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
@@ -435,6 +433,10 @@ github.com/influxdata/influxdb1-client v0.0.0-20191209144304-8bf82d3c094d/go.mod
 github.com/jehiah/go-strftime v0.0.0-20171201141054-1d33003b3869 h1:IPJ3dvxmJ4uczJe5YQdrYB16oTJlGSC/OyZDqUk9xX4=
 github.com/jehiah/go-strftime v0.0.0-20171201141054-1d33003b3869/go.mod h1:cJ6Cj7dQo+O6GJNiMx+Pa94qKj+TG8ONdKHgMNIyyag=
 github.com/jessevdk/go-flags v1.5.0/go.mod h1:Fw0T6WPc1dYxT4mKEZRfG5kJhaTDP9pj1c2EWnYs/m4=
+github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
+github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
+github.com/jinzhu/now v1.1.4 h1:tHnRBy1i5F2Dh8BAFxqFzxKqqvezXrL2OW1TnX+Mlas=
+github.com/jinzhu/now v1.1.4/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
 github.com/jmespath/go-jmespath v0.0.0-20180206201540-c2b33e8439af h1:pmfjZENx5imkbgOkpRUYLnmbU7UEFbjtDA2hxJ1ichM=
 github.com/jmespath/go-jmespath v0.0.0-20180206201540-c2b33e8439af/go.mod h1:Nht3zPeWKUH0NzdCt2Blrr5ys8VGpn0CEB0cQHVjt7k=
 github.com/jonboulle/clockwork v0.1.0 h1:VKV+ZcuP6l3yW9doeqz6ziZGgcynBVQO+obU0+0hcPo=
@@ -507,7 +509,6 @@ github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Ky
 github.com/mattn/go-isatty v0.0.14 h1:yVuAays6BHfxijgZPzw+3Zlu5yQgKGP2/hcQbHb7S9Y=
 github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
 github.com/mattn/go-runewidth v0.0.2/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
-github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/QdE+0=
 github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
 github.com/mattn/go-sqlite3 v1.14.8/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A/KQRfk6bU=
 github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
@@ -556,7 +557,6 @@ github.com/oklog/oklog v0.3.2/go.mod h1:FCV+B7mhrz4o+ueLpx+KqkyXRGMWOYEvfiXtdGtb
 github.com/oklog/run v1.0.0/go.mod h1:dlhp/R75TPv97u0XWUtDeV/lRKWPKSdTuV0TZvrmrQA=
 github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U=
 github.com/olekukonko/tablewriter v0.0.0-20170122224234-a0225b3f23b5/go.mod h1:vsDQFd/mU46D+Z4whnwzcISnGGzXWMclvtLoiIKAKIo=
-github.com/olekukonko/tablewriter v0.0.5 h1:P2Ga83D34wi1o9J6Wh1mRuqd4mF/x/lgBS7N7AbDhec=
 github.com/olekukonko/tablewriter v0.0.5/go.mod h1:hPp6KlRPjbx+hW8ykQs1w3UBbZlj6HuIJcUGPhkA7kY=
 github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/ginkgo v1.7.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
@@ -680,7 +680,6 @@ github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkU
 github.com/spf13/cast v1.4.1 h1:s0hze+J0196ZfEMTs80N7UlFt0BDuQ7Q+JDnHiMWKdA=
 github.com/spf13/cast v1.4.1/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
 github.com/spf13/cobra v0.0.3/go.mod h1:1l0Ry5zgKvJasoi3XT1TypsSe7PqH0Sj9dhYf7v3XqQ=
-github.com/spf13/cobra v1.1.3 h1:xghbfqPkxzxP3C/f3n5DdpAbdKLj4ZE4BWQI362l53M=
 github.com/spf13/cobra v1.1.3/go.mod h1:pGADOWyqRD/YMrPZigI/zbliZ2wVD/23d+is3pSWzOo=
 github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
 github.com/spf13/jwalterweatherman v1.1.0 h1:ue6voC5bR5F8YxI5S67j9i582FU4Qvo2bmqnqMYADFk=
@@ -849,7 +848,6 @@ golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/mod v0.5.0 h1:UG21uOlmZabA4fW5i7ZX6bjw1xELEGg/ZLgZq9auk/Q=
 golang.org/x/mod v0.5.0/go.mod h1:5OXOZSfqPIIbmVBIIKWRFfZjPR0E5r58TLhUjH0a2Ro=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -1302,6 +1300,10 @@ gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gorm.io/driver/mysql v1.3.2 h1:QJryWiqQ91EvZ0jZL48NOpdlPdMjdip1hQ8bTgo4H7I=
+gorm.io/driver/mysql v1.3.2/go.mod h1:ChK6AHbHgDCFZyJp0F+BmVGb06PSIoh9uVYKAlRbb2U=
+gorm.io/gorm v1.23.1 h1:aj5IlhDzEPsoIyOPtTRVI+SyaN1u6k613sbt4pwbxG0=
+gorm.io/gorm v1.23.1/go.mod h1:l2lP/RyAtc1ynaTjFksBde/O8v9oOGIApu2/xRitmZk=
 honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
diff --git a/examples/transaction/gorm/Makefile b/examples/transaction/gorm/Makefile
new file mode 100644
index 000000000..99f8034de
--- /dev/null
+++ b/examples/transaction/gorm/Makefile
@@ -0,0 +1,79 @@
+GOPATH:=$(shell go env GOPATH)
+VERSION=$(shell git describe --tags --always)
+INTERNAL_PROTO_FILES=$(shell find internal -name *.proto)
+API_PROTO_FILES=$(shell find api -name *.proto)
+
+.PHONY: init
+# init env
+init:
+	go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
+	go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
+	go install github.com/go-kratos/kratos/cmd/kratos/v2@latest
+	go install github.com/go-kratos/kratos/cmd/protoc-gen-go-http/v2@latest
+	go install github.com/go-kratos/kratos/cmd/protoc-gen-go-errors/v2@latest
+	go install github.com/google/gnostic/cmd/protoc-gen-openapi@v0.6.1
+
+.PHONY: errors
+# generate errors code
+errors:
+	protoc --proto_path=. \
+               --proto_path=./third_party \
+               --go_out=paths=source_relative:. \
+               --go-errors_out=paths=source_relative:. \
+               $(API_PROTO_FILES)
+
+.PHONY: config
+# generate internal proto
+config:
+	protoc --proto_path=. \
+	       --proto_path=./third_party \
+ 	       --go_out=paths=source_relative:. \
+	       $(INTERNAL_PROTO_FILES)
+
+.PHONY: api
+# generate api proto
+api:
+	protoc --proto_path=. \
+	       --proto_path=./third_party \
+ 	       --go_out=paths=source_relative:. \
+ 	       --go-http_out=paths=source_relative:. \
+ 	       --go-grpc_out=paths=source_relative:. \
+ 	       --openapi_out==paths=source_relative:. \
+	       $(API_PROTO_FILES)
+
+.PHONY: build
+# build
+build:
+	mkdir -p bin/ && go build -ldflags "-X main.Version=$(VERSION)" -o ./bin/ ./...
+
+.PHONY: generate
+# generate
+generate:
+	go generate ./...
+
+.PHONY: all
+# generate all
+all:
+	make api;
+	make errors;
+	make config;
+	make generate;
+
+# show help
+help:
+	@echo ''
+	@echo 'Usage:'
+	@echo ' make [target]'
+	@echo ''
+	@echo 'Targets:'
+	@awk '/^[a-zA-Z\-\_0-9]+:/ { \
+	helpMessage = match(lastLine, /^# (.*)/); \
+		if (helpMessage) { \
+			helpCommand = substr($$1, 0, index($$1, ":")-1); \
+			helpMessage = substr(lastLine, RSTART + 2, RLENGTH); \
+			printf "\033[36m%-22s\033[0m %s\n", helpCommand,helpMessage; \
+		} \
+	} \
+	{ lastLine = $$0 }' $(MAKEFILE_LIST)
+
+.DEFAULT_GOAL := help
diff --git a/examples/transaction/gorm/README.md b/examples/transaction/gorm/README.md
new file mode 100644
index 000000000..4c85ae7cb
--- /dev/null
+++ b/examples/transaction/gorm/README.md
@@ -0,0 +1,19 @@
+# How to run this blog example server
+1. You should ensure that your mysql server is running.
+2. Ensure that the database named `testdb` has been created, 
+   otherwise you should execute the following database script:
+```mysql
+create database testdb;
+```
+3. Modify the `configs/config.yaml` file and add your mysql information in the data source:
+```yaml
+data:
+  database:
+    driver: mysql
+    source: root:password@tcp(127.0.0.1:3306)/testdb?parseTime=True
+```
+4. Run your blog server:
+```bash
+$ go generate ./...
+$ kratos run
+```
diff --git a/examples/transaction/gorm/cmd/gorm/main.go b/examples/transaction/gorm/cmd/gorm/main.go
new file mode 100644
index 000000000..2b5ad97d1
--- /dev/null
+++ b/examples/transaction/gorm/cmd/gorm/main.go
@@ -0,0 +1,103 @@
+package main
+
+import (
+	"flag"
+	"os"
+
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/conf"
+	"github.com/go-kratos/kratos/v2"
+	"github.com/go-kratos/kratos/v2/config"
+	"github.com/go-kratos/kratos/v2/config/file"
+	"github.com/go-kratos/kratos/v2/log"
+	"github.com/go-kratos/kratos/v2/transport/grpc"
+	"github.com/go-kratos/kratos/v2/transport/http"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/exporters/jaeger"
+	"go.opentelemetry.io/otel/sdk/resource"
+	tracesdk "go.opentelemetry.io/otel/sdk/trace"
+	semconv "go.opentelemetry.io/otel/semconv/v1.4.0"
+)
+
+// go build -ldflags "-X main.Version=x.y.z"
+var (
+	// Name is the name of the compiled software.
+	Name string
+	// Version is the version of the compiled software.
+	Version string
+	// flagconf is the config flag.
+	flagconf string
+)
+
+func init() {
+	flag.StringVar(&flagconf, "conf", "../../configs", "config path, eg: -conf config.yaml")
+}
+
+func newApp(logger log.Logger, hs *http.Server, gs *grpc.Server) *kratos.App {
+	return kratos.New(
+		kratos.Name(Name),
+		kratos.Version(Version),
+		kratos.Metadata(map[string]string{}),
+		kratos.Logger(logger),
+		kratos.Server(
+			hs,
+			gs,
+		),
+	)
+}
+
+// Set global trace provider
+func setTracerProvider(url string) error {
+	// Create the Jaeger exporter
+	exp, err := jaeger.New(jaeger.WithCollectorEndpoint(jaeger.WithEndpoint(url)))
+	if err != nil {
+		return err
+	}
+	tp := tracesdk.NewTracerProvider(
+		// Set the sampling rate based on the parent span to 100%
+		tracesdk.WithSampler(tracesdk.ParentBased(tracesdk.TraceIDRatioBased(1.0))),
+		// Always be sure to batch in production.
+		tracesdk.WithBatcher(exp),
+		// Record information about this application in an Resource.
+		tracesdk.WithResource(resource.NewSchemaless(
+			semconv.ServiceNameKey.String(Name),
+			attribute.String("env", "dev"),
+		)),
+	)
+	otel.SetTracerProvider(tp)
+	return nil
+}
+
+func main() {
+	flag.Parse()
+	logger := log.NewStdLogger(os.Stdout)
+
+	cfg := config.New(
+		config.WithSource(
+			file.NewSource(flagconf),
+		),
+	)
+	if err := cfg.Load(); err != nil {
+		panic(err)
+	}
+
+	var bc conf.Bootstrap
+	if err := cfg.Scan(&bc); err != nil {
+		panic(err)
+	}
+
+	if err := setTracerProvider(bc.Trace.Endpoint); err != nil {
+		panic(err)
+	}
+
+	app, cleanup, err := initApp(bc.Server, bc.Data, logger)
+	if err != nil {
+		panic(err)
+	}
+	defer cleanup()
+
+	// start and wait for stop signal
+	if err := app.Run(); err != nil {
+		panic(err)
+	}
+}
diff --git a/examples/transaction/gorm/cmd/gorm/wire.go b/examples/transaction/gorm/cmd/gorm/wire.go
new file mode 100644
index 000000000..1c2baa371
--- /dev/null
+++ b/examples/transaction/gorm/cmd/gorm/wire.go
@@ -0,0 +1,22 @@
+//go:build wireinject
+// +build wireinject
+
+// The build tag makes sure the stub is not built in the final build.
+
+package main
+
+import (
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/biz"
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/conf"
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/data"
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/server"
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/service"
+	"github.com/go-kratos/kratos/v2"
+	"github.com/go-kratos/kratos/v2/log"
+	"github.com/google/wire"
+)
+
+// initApp init kratos application.
+func initApp(*conf.Server, *conf.Data, log.Logger) (*kratos.App, func(), error) {
+	panic(wire.Build(server.ProviderSet, data.ProviderSet, biz.ProviderSet, service.ProviderSet, newApp))
+}
diff --git a/examples/transaction/gorm/cmd/gorm/wire_gen.go b/examples/transaction/gorm/cmd/gorm/wire_gen.go
new file mode 100644
index 000000000..bd0cefe78
--- /dev/null
+++ b/examples/transaction/gorm/cmd/gorm/wire_gen.go
@@ -0,0 +1,39 @@
+// Code generated by Wire. DO NOT EDIT.
+
+//go:generate go run github.com/google/wire/cmd/wire
+//go:build !wireinject
+// +build !wireinject
+
+package main
+
+import (
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/biz"
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/conf"
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/data"
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/server"
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/service"
+	"github.com/go-kratos/kratos/v2"
+	"github.com/go-kratos/kratos/v2/log"
+)
+
+// Injectors from wire.go:
+
+// initApp init kratos application.
+func initApp(confServer *conf.Server, confData *conf.Data, logger log.Logger) (*kratos.App, func(), error) {
+	db := data.NewDB(confData, logger)
+	dataData, cleanup, err := data.NewData(db, logger)
+	if err != nil {
+		return nil, nil, err
+	}
+	userRepo := data.NewUserRepo(dataData, logger)
+	cardRepo := data.NewCardRepo(dataData, logger)
+	transaction := data.NewTransaction(dataData)
+	userUsecase := biz.NewUserUsecase(userRepo, cardRepo, transaction, logger)
+	transactionService := service.NewTransactionService(userUsecase, logger)
+	httpServer := server.NewHTTPServer(confServer, logger, transactionService)
+	grpcServer := server.NewGRPCServer(confServer, logger, transactionService)
+	app := newApp(logger, httpServer, grpcServer)
+	return app, func() {
+		cleanup()
+	}, nil
+}
diff --git a/examples/transaction/gorm/configs/config.yaml b/examples/transaction/gorm/configs/config.yaml
new file mode 100644
index 000000000..971033aa3
--- /dev/null
+++ b/examples/transaction/gorm/configs/config.yaml
@@ -0,0 +1,18 @@
+trace:
+  endpoint: http://127.0.0.1:14268/api/traces
+server:
+  http:
+    addr: 0.0.0.0:8000
+    timeout: 1s
+  grpc:
+    addr: 0.0.0.0:9000
+    timeout: 1s
+data:
+  database:
+    driver: mysql
+    source: root:root@tcp(127.0.0.1:3306)/testdb?charset=utf8mb4&parseTime=True&loc=Local
+  redis:
+    addr: 127.0.0.1:6379
+    dial_timeout: 1s
+    read_timeout: 0.4s
+    write_timeout: 0.6s
\ No newline at end of file
diff --git a/examples/transaction/gorm/generate.go b/examples/transaction/gorm/generate.go
new file mode 100644
index 000000000..4aac2aa9f
--- /dev/null
+++ b/examples/transaction/gorm/generate.go
@@ -0,0 +1,3 @@
+package generate
+
+//go:generate kratos proto client .
diff --git a/examples/transaction/gorm/internal/biz/README.md b/examples/transaction/gorm/internal/biz/README.md
new file mode 100644
index 000000000..26a66b630
--- /dev/null
+++ b/examples/transaction/gorm/internal/biz/README.md
@@ -0,0 +1 @@
+# Biz
diff --git a/examples/transaction/gorm/internal/biz/biz.go b/examples/transaction/gorm/internal/biz/biz.go
new file mode 100644
index 000000000..f2ca2350f
--- /dev/null
+++ b/examples/transaction/gorm/internal/biz/biz.go
@@ -0,0 +1,14 @@
+package biz
+
+import (
+	"context"
+
+	"github.com/google/wire"
+)
+
+// ProviderSet is biz providers.
+var ProviderSet = wire.NewSet(NewUserUsecase)
+
+type Transaction interface {
+	ExecTx(context.Context, func(ctx context.Context) error) error
+}
diff --git a/examples/transaction/gorm/internal/biz/transaction.go b/examples/transaction/gorm/internal/biz/transaction.go
new file mode 100644
index 000000000..a0ed8001c
--- /dev/null
+++ b/examples/transaction/gorm/internal/biz/transaction.go
@@ -0,0 +1,52 @@
+package biz
+
+import (
+	"context"
+
+	"github.com/go-kratos/kratos/v2/log"
+)
+
+type User struct {
+	Name  string
+	Email string
+}
+
+type UserRepo interface {
+	CreateUser(ctx context.Context, a *User) (int64, error)
+}
+
+type CardRepo interface {
+	CreateCard(ctx context.Context, id int64) (int64, error)
+}
+
+type UserUsecase struct {
+	userRepo UserRepo
+	cardRepo CardRepo
+	tm       Transaction
+}
+
+func NewUserUsecase(user UserRepo, card CardRepo, tm Transaction, logger log.Logger) *UserUsecase {
+	return &UserUsecase{userRepo: user, cardRepo: card, tm: tm}
+}
+
+func (u *UserUsecase) CreateUser(ctx context.Context, m *User) (int, error) {
+	var (
+		err error
+		id  int64
+	)
+	err = u.tm.ExecTx(ctx, func(ctx context.Context) error {
+		id, err = u.userRepo.CreateUser(ctx, m)
+		if err != nil {
+			return err
+		}
+		_, err = u.cardRepo.CreateCard(ctx, id)
+		if err != nil {
+			return err
+		}
+		return nil
+	})
+	if err != nil {
+		return 0, err
+	}
+	return int(id), nil
+}
diff --git a/examples/transaction/gorm/internal/conf/conf.pb.go b/examples/transaction/gorm/internal/conf/conf.pb.go
new file mode 100644
index 000000000..e57b932f2
--- /dev/null
+++ b/examples/transaction/gorm/internal/conf/conf.pb.go
@@ -0,0 +1,763 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.27.1
+// 	protoc        v3.15.8
+// source: conf.proto
+
+package conf
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	durationpb "google.golang.org/protobuf/types/known/durationpb"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type Bootstrap struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Trace  *Trace  `protobuf:"bytes,1,opt,name=trace,proto3" json:"trace,omitempty"`
+	Server *Server `protobuf:"bytes,2,opt,name=server,proto3" json:"server,omitempty"`
+	Data   *Data   `protobuf:"bytes,3,opt,name=data,proto3" json:"data,omitempty"`
+}
+
+func (x *Bootstrap) Reset() {
+	*x = Bootstrap{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_conf_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Bootstrap) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Bootstrap) ProtoMessage() {}
+
+func (x *Bootstrap) ProtoReflect() protoreflect.Message {
+	mi := &file_conf_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Bootstrap.ProtoReflect.Descriptor instead.
+func (*Bootstrap) Descriptor() ([]byte, []int) {
+	return file_conf_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Bootstrap) GetTrace() *Trace {
+	if x != nil {
+		return x.Trace
+	}
+	return nil
+}
+
+func (x *Bootstrap) GetServer() *Server {
+	if x != nil {
+		return x.Server
+	}
+	return nil
+}
+
+func (x *Bootstrap) GetData() *Data {
+	if x != nil {
+		return x.Data
+	}
+	return nil
+}
+
+type Server struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Http *Server_HTTP `protobuf:"bytes,1,opt,name=http,proto3" json:"http,omitempty"`
+	Grpc *Server_GRPC `protobuf:"bytes,2,opt,name=grpc,proto3" json:"grpc,omitempty"`
+}
+
+func (x *Server) Reset() {
+	*x = Server{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_conf_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Server) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Server) ProtoMessage() {}
+
+func (x *Server) ProtoReflect() protoreflect.Message {
+	mi := &file_conf_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Server.ProtoReflect.Descriptor instead.
+func (*Server) Descriptor() ([]byte, []int) {
+	return file_conf_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *Server) GetHttp() *Server_HTTP {
+	if x != nil {
+		return x.Http
+	}
+	return nil
+}
+
+func (x *Server) GetGrpc() *Server_GRPC {
+	if x != nil {
+		return x.Grpc
+	}
+	return nil
+}
+
+type Data struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Database *Data_Database `protobuf:"bytes,1,opt,name=database,proto3" json:"database,omitempty"`
+	Redis    *Data_Redis    `protobuf:"bytes,2,opt,name=redis,proto3" json:"redis,omitempty"`
+}
+
+func (x *Data) Reset() {
+	*x = Data{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_conf_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Data) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Data) ProtoMessage() {}
+
+func (x *Data) ProtoReflect() protoreflect.Message {
+	mi := &file_conf_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Data.ProtoReflect.Descriptor instead.
+func (*Data) Descriptor() ([]byte, []int) {
+	return file_conf_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *Data) GetDatabase() *Data_Database {
+	if x != nil {
+		return x.Database
+	}
+	return nil
+}
+
+func (x *Data) GetRedis() *Data_Redis {
+	if x != nil {
+		return x.Redis
+	}
+	return nil
+}
+
+type Trace struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Endpoint string `protobuf:"bytes,1,opt,name=endpoint,proto3" json:"endpoint,omitempty"`
+}
+
+func (x *Trace) Reset() {
+	*x = Trace{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_conf_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Trace) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Trace) ProtoMessage() {}
+
+func (x *Trace) ProtoReflect() protoreflect.Message {
+	mi := &file_conf_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Trace.ProtoReflect.Descriptor instead.
+func (*Trace) Descriptor() ([]byte, []int) {
+	return file_conf_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *Trace) GetEndpoint() string {
+	if x != nil {
+		return x.Endpoint
+	}
+	return ""
+}
+
+type Server_HTTP struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Network string               `protobuf:"bytes,1,opt,name=network,proto3" json:"network,omitempty"`
+	Addr    string               `protobuf:"bytes,2,opt,name=addr,proto3" json:"addr,omitempty"`
+	Timeout *durationpb.Duration `protobuf:"bytes,3,opt,name=timeout,proto3" json:"timeout,omitempty"`
+}
+
+func (x *Server_HTTP) Reset() {
+	*x = Server_HTTP{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_conf_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Server_HTTP) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Server_HTTP) ProtoMessage() {}
+
+func (x *Server_HTTP) ProtoReflect() protoreflect.Message {
+	mi := &file_conf_proto_msgTypes[4]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Server_HTTP.ProtoReflect.Descriptor instead.
+func (*Server_HTTP) Descriptor() ([]byte, []int) {
+	return file_conf_proto_rawDescGZIP(), []int{1, 0}
+}
+
+func (x *Server_HTTP) GetNetwork() string {
+	if x != nil {
+		return x.Network
+	}
+	return ""
+}
+
+func (x *Server_HTTP) GetAddr() string {
+	if x != nil {
+		return x.Addr
+	}
+	return ""
+}
+
+func (x *Server_HTTP) GetTimeout() *durationpb.Duration {
+	if x != nil {
+		return x.Timeout
+	}
+	return nil
+}
+
+type Server_GRPC struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Network string               `protobuf:"bytes,1,opt,name=network,proto3" json:"network,omitempty"`
+	Addr    string               `protobuf:"bytes,2,opt,name=addr,proto3" json:"addr,omitempty"`
+	Timeout *durationpb.Duration `protobuf:"bytes,3,opt,name=timeout,proto3" json:"timeout,omitempty"`
+}
+
+func (x *Server_GRPC) Reset() {
+	*x = Server_GRPC{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_conf_proto_msgTypes[5]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Server_GRPC) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Server_GRPC) ProtoMessage() {}
+
+func (x *Server_GRPC) ProtoReflect() protoreflect.Message {
+	mi := &file_conf_proto_msgTypes[5]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Server_GRPC.ProtoReflect.Descriptor instead.
+func (*Server_GRPC) Descriptor() ([]byte, []int) {
+	return file_conf_proto_rawDescGZIP(), []int{1, 1}
+}
+
+func (x *Server_GRPC) GetNetwork() string {
+	if x != nil {
+		return x.Network
+	}
+	return ""
+}
+
+func (x *Server_GRPC) GetAddr() string {
+	if x != nil {
+		return x.Addr
+	}
+	return ""
+}
+
+func (x *Server_GRPC) GetTimeout() *durationpb.Duration {
+	if x != nil {
+		return x.Timeout
+	}
+	return nil
+}
+
+type Data_Database struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Driver string `protobuf:"bytes,1,opt,name=driver,proto3" json:"driver,omitempty"`
+	Source string `protobuf:"bytes,2,opt,name=source,proto3" json:"source,omitempty"`
+}
+
+func (x *Data_Database) Reset() {
+	*x = Data_Database{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_conf_proto_msgTypes[6]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Data_Database) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Data_Database) ProtoMessage() {}
+
+func (x *Data_Database) ProtoReflect() protoreflect.Message {
+	mi := &file_conf_proto_msgTypes[6]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Data_Database.ProtoReflect.Descriptor instead.
+func (*Data_Database) Descriptor() ([]byte, []int) {
+	return file_conf_proto_rawDescGZIP(), []int{2, 0}
+}
+
+func (x *Data_Database) GetDriver() string {
+	if x != nil {
+		return x.Driver
+	}
+	return ""
+}
+
+func (x *Data_Database) GetSource() string {
+	if x != nil {
+		return x.Source
+	}
+	return ""
+}
+
+type Data_Redis struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Network      string               `protobuf:"bytes,1,opt,name=network,proto3" json:"network,omitempty"`
+	Addr         string               `protobuf:"bytes,2,opt,name=addr,proto3" json:"addr,omitempty"`
+	Password     string               `protobuf:"bytes,3,opt,name=password,proto3" json:"password,omitempty"`
+	Db           int32                `protobuf:"varint,4,opt,name=db,proto3" json:"db,omitempty"`
+	DialTimeout  *durationpb.Duration `protobuf:"bytes,5,opt,name=dial_timeout,json=dialTimeout,proto3" json:"dial_timeout,omitempty"`
+	ReadTimeout  *durationpb.Duration `protobuf:"bytes,6,opt,name=read_timeout,json=readTimeout,proto3" json:"read_timeout,omitempty"`
+	WriteTimeout *durationpb.Duration `protobuf:"bytes,7,opt,name=write_timeout,json=writeTimeout,proto3" json:"write_timeout,omitempty"`
+}
+
+func (x *Data_Redis) Reset() {
+	*x = Data_Redis{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_conf_proto_msgTypes[7]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Data_Redis) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Data_Redis) ProtoMessage() {}
+
+func (x *Data_Redis) ProtoReflect() protoreflect.Message {
+	mi := &file_conf_proto_msgTypes[7]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Data_Redis.ProtoReflect.Descriptor instead.
+func (*Data_Redis) Descriptor() ([]byte, []int) {
+	return file_conf_proto_rawDescGZIP(), []int{2, 1}
+}
+
+func (x *Data_Redis) GetNetwork() string {
+	if x != nil {
+		return x.Network
+	}
+	return ""
+}
+
+func (x *Data_Redis) GetAddr() string {
+	if x != nil {
+		return x.Addr
+	}
+	return ""
+}
+
+func (x *Data_Redis) GetPassword() string {
+	if x != nil {
+		return x.Password
+	}
+	return ""
+}
+
+func (x *Data_Redis) GetDb() int32 {
+	if x != nil {
+		return x.Db
+	}
+	return 0
+}
+
+func (x *Data_Redis) GetDialTimeout() *durationpb.Duration {
+	if x != nil {
+		return x.DialTimeout
+	}
+	return nil
+}
+
+func (x *Data_Redis) GetReadTimeout() *durationpb.Duration {
+	if x != nil {
+		return x.ReadTimeout
+	}
+	return nil
+}
+
+func (x *Data_Redis) GetWriteTimeout() *durationpb.Duration {
+	if x != nil {
+		return x.WriteTimeout
+	}
+	return nil
+}
+
+var File_conf_proto protoreflect.FileDescriptor
+
+var file_conf_proto_rawDesc = []byte{
+	0x0a, 0x0a, 0x63, 0x6f, 0x6e, 0x66, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x14, 0x6b, 0x72,
+	0x61, 0x74, 0x6f, 0x73, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x61, 0x6c, 0x2e, 0x63, 0x6f,
+	0x6e, 0x66, 0x1a, 0x1e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x62, 0x75, 0x66, 0x2f, 0x64, 0x75, 0x72, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x22, 0xa4, 0x01, 0x0a, 0x09, 0x42, 0x6f, 0x6f, 0x74, 0x73, 0x74, 0x72, 0x61, 0x70,
+	0x12, 0x31, 0x0a, 0x05, 0x74, 0x72, 0x61, 0x63, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32,
+	0x1b, 0x2e, 0x6b, 0x72, 0x61, 0x74, 0x6f, 0x73, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x61,
+	0x6c, 0x2e, 0x63, 0x6f, 0x6e, 0x66, 0x2e, 0x54, 0x72, 0x61, 0x63, 0x65, 0x52, 0x05, 0x74, 0x72,
+	0x61, 0x63, 0x65, 0x12, 0x34, 0x0a, 0x06, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x18, 0x02, 0x20,
+	0x01, 0x28, 0x0b, 0x32, 0x1c, 0x2e, 0x6b, 0x72, 0x61, 0x74, 0x6f, 0x73, 0x2e, 0x69, 0x6e, 0x74,
+	0x65, 0x72, 0x6e, 0x61, 0x6c, 0x2e, 0x63, 0x6f, 0x6e, 0x66, 0x2e, 0x53, 0x65, 0x72, 0x76, 0x65,
+	0x72, 0x52, 0x06, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x12, 0x2e, 0x0a, 0x04, 0x64, 0x61, 0x74,
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+	0x74, 0x6f, 0x33,
+}
+
+var (
+	file_conf_proto_rawDescOnce sync.Once
+	file_conf_proto_rawDescData = file_conf_proto_rawDesc
+)
+
+func file_conf_proto_rawDescGZIP() []byte {
+	file_conf_proto_rawDescOnce.Do(func() {
+		file_conf_proto_rawDescData = protoimpl.X.CompressGZIP(file_conf_proto_rawDescData)
+	})
+	return file_conf_proto_rawDescData
+}
+
+var file_conf_proto_msgTypes = make([]protoimpl.MessageInfo, 8)
+var file_conf_proto_goTypes = []interface{}{
+	(*Bootstrap)(nil),           // 0: kratos.internal.conf.Bootstrap
+	(*Server)(nil),              // 1: kratos.internal.conf.Server
+	(*Data)(nil),                // 2: kratos.internal.conf.Data
+	(*Trace)(nil),               // 3: kratos.internal.conf.Trace
+	(*Server_HTTP)(nil),         // 4: kratos.internal.conf.Server.HTTP
+	(*Server_GRPC)(nil),         // 5: kratos.internal.conf.Server.GRPC
+	(*Data_Database)(nil),       // 6: kratos.internal.conf.Data.Database
+	(*Data_Redis)(nil),          // 7: kratos.internal.conf.Data.Redis
+	(*durationpb.Duration)(nil), // 8: google.protobuf.Duration
+}
+var file_conf_proto_depIdxs = []int32{
+	3,  // 0: kratos.internal.conf.Bootstrap.trace:type_name -> kratos.internal.conf.Trace
+	1,  // 1: kratos.internal.conf.Bootstrap.server:type_name -> kratos.internal.conf.Server
+	2,  // 2: kratos.internal.conf.Bootstrap.data:type_name -> kratos.internal.conf.Data
+	4,  // 3: kratos.internal.conf.Server.http:type_name -> kratos.internal.conf.Server.HTTP
+	5,  // 4: kratos.internal.conf.Server.grpc:type_name -> kratos.internal.conf.Server.GRPC
+	6,  // 5: kratos.internal.conf.Data.database:type_name -> kratos.internal.conf.Data.Database
+	7,  // 6: kratos.internal.conf.Data.redis:type_name -> kratos.internal.conf.Data.Redis
+	8,  // 7: kratos.internal.conf.Server.HTTP.timeout:type_name -> google.protobuf.Duration
+	8,  // 8: kratos.internal.conf.Server.GRPC.timeout:type_name -> google.protobuf.Duration
+	8,  // 9: kratos.internal.conf.Data.Redis.dial_timeout:type_name -> google.protobuf.Duration
+	8,  // 10: kratos.internal.conf.Data.Redis.read_timeout:type_name -> google.protobuf.Duration
+	8,  // 11: kratos.internal.conf.Data.Redis.write_timeout:type_name -> google.protobuf.Duration
+	12, // [12:12] is the sub-list for method output_type
+	12, // [12:12] is the sub-list for method input_type
+	12, // [12:12] is the sub-list for extension type_name
+	12, // [12:12] is the sub-list for extension extendee
+	0,  // [0:12] is the sub-list for field type_name
+}
+
+func init() { file_conf_proto_init() }
+func file_conf_proto_init() {
+	if File_conf_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_conf_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Bootstrap); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_conf_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Server); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_conf_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Data); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_conf_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Trace); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_conf_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Server_HTTP); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_conf_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Server_GRPC); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_conf_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Data_Database); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_conf_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Data_Redis); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_conf_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   8,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_conf_proto_goTypes,
+		DependencyIndexes: file_conf_proto_depIdxs,
+		MessageInfos:      file_conf_proto_msgTypes,
+	}.Build()
+	File_conf_proto = out.File
+	file_conf_proto_rawDesc = nil
+	file_conf_proto_goTypes = nil
+	file_conf_proto_depIdxs = nil
+}
diff --git a/examples/transaction/gorm/internal/conf/conf.proto b/examples/transaction/gorm/internal/conf/conf.proto
new file mode 100644
index 000000000..491c21a13
--- /dev/null
+++ b/examples/transaction/gorm/internal/conf/conf.proto
@@ -0,0 +1,49 @@
+syntax = "proto3";
+package kratos.internal.conf;
+
+option go_package = "github.com/go-kratos/kratos/examples/blog/internal/conf;conf";
+
+import "google/protobuf/duration.proto";
+
+message Bootstrap {
+    Trace  trace = 1;
+    Server server = 2;
+    Data data = 3;
+}
+
+message Server {
+    message HTTP {
+        string network = 1;
+        string addr = 2;
+        google.protobuf.Duration timeout = 3;
+    }
+    message GRPC {
+        string network = 1;
+        string addr = 2;
+        google.protobuf.Duration timeout = 3;
+    }
+    HTTP http = 1;
+    GRPC grpc = 2;
+}
+
+message Data {
+    message Database {
+        string driver = 1;
+        string source = 2;
+    }
+    message Redis {
+        string network = 1;
+        string addr = 2;
+        string password = 3;
+        int32 db = 4;
+        google.protobuf.Duration dial_timeout = 5;
+        google.protobuf.Duration read_timeout = 6;
+        google.protobuf.Duration write_timeout = 7;
+    }
+    Database database = 1;
+    Redis redis = 2;
+}
+
+message Trace {
+    string endpoint = 1;
+}
\ No newline at end of file
diff --git a/examples/transaction/gorm/internal/data/README.md b/examples/transaction/gorm/internal/data/README.md
new file mode 100644
index 000000000..a9f7e8dad
--- /dev/null
+++ b/examples/transaction/gorm/internal/data/README.md
@@ -0,0 +1,5 @@
+# Data
+
+```
+go generate ./ent
+```
\ No newline at end of file
diff --git a/examples/transaction/gorm/internal/data/data.go b/examples/transaction/gorm/internal/data/data.go
new file mode 100644
index 000000000..031e4bb96
--- /dev/null
+++ b/examples/transaction/gorm/internal/data/data.go
@@ -0,0 +1,71 @@
+package data
+
+import (
+	"context"
+
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/biz"
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/conf"
+	"github.com/go-kratos/kratos/v2/log"
+	"github.com/google/wire"
+	"gorm.io/driver/mysql"
+	"gorm.io/gorm"
+
+	// init mysql driver
+	_ "github.com/go-sql-driver/mysql"
+)
+
+// ProviderSet is data providers.
+var ProviderSet = wire.NewSet(NewData, NewDB, NewTransaction, NewUserRepo, NewCardRepo)
+
+// Data .
+type Data struct {
+	db  *gorm.DB
+	log *log.Helper
+}
+
+type contextTxKey struct{}
+
+func (d *Data) ExecTx(ctx context.Context, fn func(ctx context.Context) error) error {
+	return d.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		ctx = context.WithValue(ctx, contextTxKey{}, tx)
+		return fn(ctx)
+	})
+}
+
+func (d *Data) DB(ctx context.Context) *gorm.DB {
+	tx, ok := ctx.Value(contextTxKey{}).(*gorm.DB)
+	if ok {
+		return tx
+	}
+	return d.db
+}
+
+// NewTransaction .
+func NewTransaction(d *Data) biz.Transaction {
+	return d
+}
+
+// NewData .
+func NewData(db *gorm.DB, logger log.Logger) (*Data, func(), error) {
+	l := log.NewHelper(log.With(logger, "module", "transaction/data"))
+	d := &Data{
+		db:  db,
+		log: l,
+	}
+	return d, func() {
+	}, nil
+}
+
+// NewDB gorm Connecting to a Database
+func NewDB(conf *conf.Data, logger log.Logger) *gorm.DB {
+	log := log.NewHelper(log.With(logger, "module", "order-service/data/gorm"))
+
+	db, err := gorm.Open(mysql.Open(conf.Database.Source), &gorm.Config{})
+	if err != nil {
+		log.Fatalf("failed opening connection to mysql: %v", err)
+	}
+	if err := db.AutoMigrate(&User{}, &Card{}); err != nil {
+		log.Fatal(err)
+	}
+	return db
+}
diff --git a/examples/transaction/gorm/internal/data/transaction.go b/examples/transaction/gorm/internal/data/transaction.go
new file mode 100644
index 000000000..6e4b1d3c7
--- /dev/null
+++ b/examples/transaction/gorm/internal/data/transaction.go
@@ -0,0 +1,64 @@
+package data
+
+import (
+	"context"
+	"time"
+
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/biz"
+	"github.com/go-kratos/kratos/v2/log"
+)
+
+type userRepo struct {
+	data *Data
+	log  *log.Helper
+}
+
+type cardRepo struct {
+	data *Data
+	log  *log.Helper
+}
+
+type User struct {
+	ID        int64
+	Name      string
+	Email     string
+	CreatedAt time.Time
+	UpdatedAt time.Time
+}
+
+type Card struct {
+	ID        int64
+	UserID    int64
+	Money     int64
+	CreatedAt time.Time
+	UpdatedAt time.Time
+}
+
+// NewUserRepo .
+func NewUserRepo(data *Data, logger log.Logger) biz.UserRepo {
+	return &userRepo{
+		data: data,
+		log:  log.NewHelper(logger),
+	}
+}
+
+func (u *userRepo) CreateUser(ctx context.Context, m *biz.User) (int64, error) {
+	user := User{Name: m.Name, Email: m.Email}
+	result := u.data.DB(ctx).Create(&user)
+	return user.ID, result.Error
+}
+
+func NewCardRepo(data *Data, logger log.Logger) biz.CardRepo {
+	return &cardRepo{
+		data: data,
+		log:  log.NewHelper(logger),
+	}
+}
+
+func (c *cardRepo) CreateCard(ctx context.Context, id int64) (int64, error) {
+	var card Card
+	card.UserID = id
+	card.Money = 1000
+	result := c.data.DB(ctx).Save(&card)
+	return card.ID, result.Error
+}
diff --git a/examples/transaction/gorm/internal/server/grpc.go b/examples/transaction/gorm/internal/server/grpc.go
new file mode 100644
index 000000000..44c568f94
--- /dev/null
+++ b/examples/transaction/gorm/internal/server/grpc.go
@@ -0,0 +1,37 @@
+package server
+
+import (
+	v1 "github.com/go-kratos/kratos/examples/transaction/api/transaction/v1"
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/conf"
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/service"
+	"github.com/go-kratos/kratos/v2/log"
+	"github.com/go-kratos/kratos/v2/middleware/logging"
+	"github.com/go-kratos/kratos/v2/middleware/recovery"
+	"github.com/go-kratos/kratos/v2/middleware/tracing"
+	"github.com/go-kratos/kratos/v2/middleware/validate"
+	"github.com/go-kratos/kratos/v2/transport/grpc"
+)
+
+// NewGRPCServer new a gRPC server.
+func NewGRPCServer(c *conf.Server, logger log.Logger, transaction *service.TransactionService) *grpc.Server {
+	opts := []grpc.ServerOption{
+		grpc.Middleware(
+			recovery.Recovery(),
+			tracing.Server(),
+			logging.Server(logger),
+			validate.Validator(),
+		),
+	}
+	if c.Grpc.Network != "" {
+		opts = append(opts, grpc.Network(c.Grpc.Network))
+	}
+	if c.Grpc.Addr != "" {
+		opts = append(opts, grpc.Address(c.Grpc.Addr))
+	}
+	if c.Grpc.Timeout != nil {
+		opts = append(opts, grpc.Timeout(c.Grpc.Timeout.AsDuration()))
+	}
+	srv := grpc.NewServer(opts...)
+	v1.RegisterTransactionServiceServer(srv, transaction)
+	return srv
+}
diff --git a/examples/transaction/gorm/internal/server/http.go b/examples/transaction/gorm/internal/server/http.go
new file mode 100644
index 000000000..2de797f2e
--- /dev/null
+++ b/examples/transaction/gorm/internal/server/http.go
@@ -0,0 +1,37 @@
+package server
+
+import (
+	v1 "github.com/go-kratos/kratos/examples/transaction/api/transaction/v1"
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/conf"
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/service"
+	"github.com/go-kratos/kratos/v2/log"
+	"github.com/go-kratos/kratos/v2/middleware/logging"
+	"github.com/go-kratos/kratos/v2/middleware/recovery"
+	"github.com/go-kratos/kratos/v2/middleware/tracing"
+	"github.com/go-kratos/kratos/v2/middleware/validate"
+	"github.com/go-kratos/kratos/v2/transport/http"
+)
+
+// NewHTTPServer new a HTTP server.
+func NewHTTPServer(c *conf.Server, logger log.Logger, transaction *service.TransactionService) *http.Server {
+	opts := []http.ServerOption{
+		http.Middleware(
+			recovery.Recovery(),
+			tracing.Server(),
+			logging.Server(logger),
+			validate.Validator(),
+		),
+	}
+	if c.Http.Network != "" {
+		opts = append(opts, http.Network(c.Http.Network))
+	}
+	if c.Http.Addr != "" {
+		opts = append(opts, http.Address(c.Http.Addr))
+	}
+	if c.Http.Timeout != nil {
+		opts = append(opts, http.Timeout(c.Http.Timeout.AsDuration()))
+	}
+	srv := http.NewServer(opts...)
+	v1.RegisterTransactionServiceHTTPServer(srv, transaction)
+	return srv
+}
diff --git a/examples/transaction/gorm/internal/server/server.go b/examples/transaction/gorm/internal/server/server.go
new file mode 100644
index 000000000..4d267a7a3
--- /dev/null
+++ b/examples/transaction/gorm/internal/server/server.go
@@ -0,0 +1,8 @@
+package server
+
+import (
+	"github.com/google/wire"
+)
+
+// ProviderSet is server providers.
+var ProviderSet = wire.NewSet(NewHTTPServer, NewGRPCServer)
diff --git a/examples/transaction/gorm/internal/service/README.md b/examples/transaction/gorm/internal/service/README.md
new file mode 100644
index 000000000..42321b7b1
--- /dev/null
+++ b/examples/transaction/gorm/internal/service/README.md
@@ -0,0 +1 @@
+# Service
diff --git a/examples/transaction/gorm/internal/service/service.go b/examples/transaction/gorm/internal/service/service.go
new file mode 100644
index 000000000..ad3e067d3
--- /dev/null
+++ b/examples/transaction/gorm/internal/service/service.go
@@ -0,0 +1,20 @@
+package service
+
+import (
+	pb "github.com/go-kratos/kratos/examples/transaction/api/transaction/v1"
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/biz"
+
+	"github.com/go-kratos/kratos/v2/log"
+	"github.com/google/wire"
+)
+
+// ProviderSet is service providers.
+var ProviderSet = wire.NewSet(NewTransactionService)
+
+type TransactionService struct {
+	pb.UnimplementedTransactionServiceServer
+
+	log *log.Helper
+
+	user *biz.UserUsecase
+}
diff --git a/examples/transaction/gorm/internal/service/transaction.go b/examples/transaction/gorm/internal/service/transaction.go
new file mode 100644
index 000000000..69d075481
--- /dev/null
+++ b/examples/transaction/gorm/internal/service/transaction.go
@@ -0,0 +1,31 @@
+package service
+
+import (
+	"context"
+	"strconv"
+
+	pb "github.com/go-kratos/kratos/examples/transaction/api/transaction/v1"
+	"github.com/go-kratos/kratos/examples/transaction/gorm/internal/biz"
+
+	"github.com/go-kratos/kratos/v2/log"
+)
+
+func NewTransactionService(user *biz.UserUsecase, logger log.Logger) *TransactionService {
+	return &TransactionService{
+		user: user,
+		log:  log.NewHelper(logger),
+	}
+}
+
+func (b *TransactionService) CreateUser(ctx context.Context, in *pb.CreateUserRequest) (*pb.CreateUserReply, error) {
+	id, err := b.user.CreateUser(ctx, &biz.User{
+		Name:  in.Name,
+		Email: in.Email,
+	})
+	if err != nil {
+		return nil, err
+	}
+	return &pb.CreateUserReply{
+		Id: strconv.Itoa(id),
+	}, nil
+}
diff --git a/examples/transaction/gorm/openapi.yaml b/examples/transaction/gorm/openapi.yaml
new file mode 100644
index 000000000..c4afd3ba2
--- /dev/null
+++ b/examples/transaction/gorm/openapi.yaml
@@ -0,0 +1,126 @@
+# Generated with protoc-gen-openapi
+# https://github.com/google/gnostic/tree/master/apps/protoc-gen-openapi
+
+openapi: 3.0.3
+info:
+    title: BlogService
+    version: 0.0.1
+paths:
+    /v1/article/:
+        get:
+            operationId: BlogService_ListArticle
+            responses:
+                "200":
+                    description: OK
+                    content:
+                        application/json:
+                            schema:
+                                $ref: '#/components/schemas/ListArticleReply'
+        post:
+            operationId: BlogService_CreateArticle
+            requestBody:
+                content:
+                    application/json:
+                        schema:
+                            $ref: '#/components/schemas/CreateArticleRequest'
+                required: true
+            responses:
+                "200":
+                    description: OK
+                    content:
+                        application/json:
+                            schema:
+                                $ref: '#/components/schemas/CreateArticleReply'
+    /v1/article/{id}:
+        get:
+            operationId: BlogService_GetArticle
+            parameters:
+                - name: id
+                  in: query
+                  schema:
+                    type: string
+            responses:
+                "200":
+                    description: OK
+                    content:
+                        application/json:
+                            schema:
+                                $ref: '#/components/schemas/GetArticleReply'
+        put:
+            operationId: BlogService_UpdateArticle
+            requestBody:
+                content:
+                    application/json:
+                        schema:
+                            $ref: '#/components/schemas/UpdateArticleRequest'
+                required: true
+            responses:
+                "200":
+                    description: OK
+                    content:
+                        application/json:
+                            schema:
+                                $ref: '#/components/schemas/UpdateArticleReply'
+        delete:
+            operationId: BlogService_DeleteArticle
+            parameters:
+                - name: id
+                  in: query
+                  schema:
+                    type: string
+            responses:
+                "200":
+                    description: OK
+                    content:
+                        application/json:
+                            schema:
+                                $ref: '#/components/schemas/DeleteArticleReply'
+components:
+    schemas:
+        Article:
+            properties:
+                id:
+                    type: integer
+                    format: int64
+                title:
+                    type: string
+                content:
+                    type: string
+                like:
+                    type: integer
+                    format: int64
+        CreateArticleReply:
+            properties:
+                Article:
+                    $ref: '#/components/schemas/Article'
+        CreateArticleRequest:
+            properties:
+                title:
+                    type: string
+                content:
+                    type: string
+        DeleteArticleReply:
+            properties: {}
+        GetArticleReply:
+            properties:
+                Article:
+                    $ref: '#/components/schemas/Article'
+        ListArticleReply:
+            properties:
+                results:
+                    type: array
+                    items:
+                        $ref: '#/components/schemas/Article'
+        UpdateArticleReply:
+            properties:
+                Article:
+                    $ref: '#/components/schemas/Article'
+        UpdateArticleRequest:
+            properties:
+                id:
+                    type: integer
+                    format: int64
+                title:
+                    type: string
+                content:
+                    type: string