diff --git a/CHANGELOG.md b/CHANGELOG.md
index 223e2c29..65e7aa44 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,12 +1,9 @@
 # developing
 
-- Fix lint and format code in adapter/config dir [4646](https://github.com/beego/beego/pull/4646)
 - Add http client and option func. [4455](https://github.com/beego/beego/issues/4455)
 - Add: Convenient way to generate mock object [4620](https://github.com/beego/beego/issues/4620)
-- Fix lint and format code in adapter/context dir [4647](https://github.com/beego/beego/pull/4647)
 - Infra: use dependabot to update dependencies. [4623](https://github.com/beego/beego/pull/4623)
 - Lint: use golangci-lint. [4619](https://github.com/beego/beego/pull/4619)
-- Fix lint and format code in adapter/httplib dir [4648](https://github.com/beego/beego/pull/4648)
 - Chore: format code. [4615](https://github.com/beego/beego/pull/4615)
 - Test on Go v1.15.x & v1.16.x. [4614](https://github.com/beego/beego/pull/4614)
 - Env: non-empty GOBIN & GOPATH. [4613](https://github.com/beego/beego/pull/4613)
@@ -54,7 +51,6 @@
 - Init exceptMethod by using reflection. [4583](https://github.com/beego/beego/pull/4583)
 - Deprecated BeeMap and replace all usage with `sync.map` [4616](https://github.com/beego/beego/pull/4616)
 - TaskManager support graceful shutdown [4635](https://github.com/beego/beego/pull/4635)
-- Fix lint and format code in adapter/cache dir [4645](https://github.com/beego/beego/pull/4645)
 
 ## Fix Sonar
 
@@ -69,3 +65,8 @@
 
 - [4651](https://github.com/beego/beego/pull/4651)
 - [4644](https://github.com/beego/beego/pull/4644)
+- [4645](https://github.com/beego/beego/pull/4645)
+- [4646](https://github.com/beego/beego/pull/4646)
+- [4647](https://github.com/beego/beego/pull/4647)
+- [4648](https://github.com/beego/beego/pull/4648)
+- [4649](https://github.com/beego/beego/pull/4649)
diff --git a/adapter/app.go b/adapter/app.go
index 8502256b..2a5ff123 100644
--- a/adapter/app.go
+++ b/adapter/app.go
@@ -22,10 +22,8 @@ import (
 	"github.com/beego/beego/v2/server/web/context"
 )
 
-var (
-	// BeeApp is an application instance
-	BeeApp *App
-)
+// BeeApp is an application instance
+var BeeApp *App
 
 func init() {
 	// create beego application
diff --git a/adapter/beego.go b/adapter/beego.go
index 331aa786..08eb1e72 100644
--- a/adapter/beego.go
+++ b/adapter/beego.go
@@ -36,10 +36,6 @@ type M web.M
 // Hook function to run
 type hookfunc func() error
 
-var (
-	hooks = make([]hookfunc, 0) // hook function slice to store the hookfunc
-)
-
 // AddAPPStartHook is used to register the hookfunc
 // The hookfuncs will run in beego.Run()
 // such as initiating session , starting middleware , building template, starting admin control and so on.
diff --git a/adapter/controller.go b/adapter/controller.go
index 840abb48..6d2d5f64 100644
--- a/adapter/controller.go
+++ b/adapter/controller.go
@@ -48,9 +48,11 @@ type ControllerCommentsSlice web.ControllerCommentsSlice
 func (p ControllerCommentsSlice) Len() int {
 	return (web.ControllerCommentsSlice)(p).Len()
 }
+
 func (p ControllerCommentsSlice) Less(i, j int) bool {
 	return (web.ControllerCommentsSlice)(p).Less(i, j)
 }
+
 func (p ControllerCommentsSlice) Swap(i, j int) {
 	(web.ControllerCommentsSlice)(p).Swap(i, j)
 }
diff --git a/adapter/orm/db.go b/adapter/orm/db.go
index 3cdd33cd..c1d1fe92 100644
--- a/adapter/orm/db.go
+++ b/adapter/orm/db.go
@@ -18,7 +18,5 @@ import (
 	"github.com/beego/beego/v2/client/orm"
 )
 
-var (
-	// ErrMissPK missing pk error
-	ErrMissPK = orm.ErrMissPK
-)
+// ErrMissPK missing pk error
+var ErrMissPK = orm.ErrMissPK
diff --git a/adapter/orm/query_setter_adapter.go b/adapter/orm/query_setter_adapter.go
deleted file mode 100644
index edea0a15..00000000
--- a/adapter/orm/query_setter_adapter.go
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright 2020
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package orm
-
-import (
-	"github.com/beego/beego/v2/client/orm"
-)
-
-type baseQuerySetter struct {
-}
-
-const shouldNotInvoke = "you should not invoke this method."
-
-func (b *baseQuerySetter) ForceIndex(indexes ...string) orm.QuerySeter {
-	panic(shouldNotInvoke)
-}
-
-func (b *baseQuerySetter) UseIndex(indexes ...string) orm.QuerySeter {
-	panic(shouldNotInvoke)
-}
-
-func (b *baseQuerySetter) IgnoreIndex(indexes ...string) orm.QuerySeter {
-	panic(shouldNotInvoke)
-}
diff --git a/adapter/session/redis_sentinel/sess_redis_sentinel_test.go b/adapter/session/redis_sentinel/sess_redis_sentinel_test.go
index b08d0256..2d381af6 100644
--- a/adapter/session/redis_sentinel/sess_redis_sentinel_test.go
+++ b/adapter/session/redis_sentinel/sess_redis_sentinel_test.go
@@ -72,5 +72,4 @@ func TestRedisSentinel(t *testing.T) {
 	assert.Nil(t, password)
 
 	sess.SessionRelease(w)
-
 }
diff --git a/adapter/session/sess_file_test.go b/adapter/session/sess_file_test.go
index 4cec8341..a3e3d0b9 100644
--- a/adapter/session/sess_file_test.go
+++ b/adapter/session/sess_file_test.go
@@ -22,14 +22,14 @@ import (
 	"time"
 )
 
-const sid = "Session_id"
-const sidNew = "Session_id_new"
-const sessionPath = "./_session_runtime"
-
-var (
-	mutex sync.Mutex
+const (
+	sid         = "Session_id"
+	sidNew      = "Session_id_new"
+	sessionPath = "./_session_runtime"
 )
 
+var mutex sync.Mutex
+
 func TestFileProviderSessionExist(t *testing.T) {
 	mutex.Lock()
 	defer mutex.Unlock()
diff --git a/adapter/templatefunc.go b/adapter/templatefunc.go
index 808539e7..c5574d32 100644
--- a/adapter/templatefunc.go
+++ b/adapter/templatefunc.go
@@ -118,7 +118,6 @@ func AssetsJs(text string) template.HTML {
 
 // AssetsCSS returns stylesheet link tag with src string.
 func AssetsCSS(text string) template.HTML {
-
 	text = "<link href=\"" + text + "\" rel=\"stylesheet\" />"
 
 	return template.HTML(text)
diff --git a/adapter/templatefunc_test.go b/adapter/templatefunc_test.go
index c12efd7e..b3d5e968 100644
--- a/adapter/templatefunc_test.go
+++ b/adapter/templatefunc_test.go
@@ -79,7 +79,6 @@ func TestHtmlunquote(t *testing.T) {
 	h := `&lt;&#39;&nbsp;&rdquo;&ldquo;&amp;&#34;&gt;`
 	s := `<' ”“&">`
 	assert.Equal(t, s, Htmlunquote(h))
-
 }
 
 func TestParseForm(t *testing.T) {
@@ -234,5 +233,4 @@ func TestMapGet(t *testing.T) {
 	res, err = MapGet(m5, 5, 4, 3, 2, 1)
 	assert.Nil(t, err)
 	assert.Nil(t, res)
-
 }
diff --git a/adapter/testing/client.go b/adapter/testing/client.go
index 356a0f68..a773c9a6 100644
--- a/adapter/testing/client.go
+++ b/adapter/testing/client.go
@@ -14,12 +14,7 @@
 
 package testing
 
-import (
-	"github.com/beego/beego/v2/client/httplib/testing"
-)
-
-var port = ""
-var baseURL = "http://localhost:"
+import "github.com/beego/beego/v2/client/httplib/testing"
 
 // TestHTTPRequest beego test request client
 type TestHTTPRequest testing.TestHTTPRequest
diff --git a/adapter/toolbox/profile.go b/adapter/toolbox/profile.go
index 15d7010a..00b0eef7 100644
--- a/adapter/toolbox/profile.go
+++ b/adapter/toolbox/profile.go
@@ -16,19 +16,10 @@ package toolbox
 
 import (
 	"io"
-	"os"
-	"time"
 
 	"github.com/beego/beego/v2/core/admin"
 )
 
-var startTime = time.Now()
-var pid int
-
-func init() {
-	pid = os.Getpid()
-}
-
 // ProcessInput parse input command string
 func ProcessInput(input string, w io.Writer) {
 	admin.ProcessInput(input, w)
diff --git a/adapter/toolbox/task.go b/adapter/toolbox/task.go
index 7b7cd68a..199956f8 100644
--- a/adapter/toolbox/task.go
+++ b/adapter/toolbox/task.go
@@ -80,7 +80,6 @@ type Task struct {
 
 // NewTask add new task with name, time and func
 func NewTask(tname string, spec string, f TaskFunc) *Task {
-
 	task := task.NewTask(tname, spec, func(ctx context.Context) error {
 		return f()
 	})
@@ -98,7 +97,6 @@ func (t *Task) GetSpec() string {
 
 // GetStatus get current task status
 func (t *Task) GetStatus() string {
-
 	t.initDelegate()
 
 	return t.delegate.GetStatus(context.Background())
@@ -222,7 +220,6 @@ type MapSorter task.MapSorter
 
 // NewMapSorter create new tasker map
 func NewMapSorter(m map[string]Tasker) *MapSorter {
-
 	newTaskerMap := make(map[string]task.Tasker, len(m))
 
 	for key, value := range m {
@@ -249,6 +246,7 @@ func (ms *MapSorter) Less(i, j int) bool {
 	}
 	return ms.Vals[i].GetNext(context.Background()).Before(ms.Vals[j].GetNext(context.Background()))
 }
+
 func (ms *MapSorter) Swap(i, j int) {
 	ms.Vals[i], ms.Vals[j] = ms.Vals[j], ms.Vals[i]
 	ms.Keys[i], ms.Keys[j] = ms.Keys[j], ms.Keys[i]
diff --git a/adapter/utils/captcha/captcha.go b/adapter/utils/captcha/captcha.go
index 741be9a5..7cdcab2d 100644
--- a/adapter/utils/captcha/captcha.go
+++ b/adapter/utils/captcha/captcha.go
@@ -69,9 +69,7 @@ import (
 	beecontext "github.com/beego/beego/v2/server/web/context"
 )
 
-var (
-	defaultChars = []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
-)
+var defaultChars = []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
 
 const (
 	// default captcha attributes
diff --git a/adapter/utils/debug_test.go b/adapter/utils/debug_test.go
index efb8924e..a748d20a 100644
--- a/adapter/utils/debug_test.go
+++ b/adapter/utils/debug_test.go
@@ -28,8 +28,8 @@ func TestPrint(t *testing.T) {
 }
 
 func TestPrintPoint(t *testing.T) {
-	var v1 = new(mytype)
-	var v2 = new(mytype)
+	v1 := new(mytype)
+	v2 := new(mytype)
 
 	v1.prev = nil
 	v1.next = v2
diff --git a/adapter/utils/slice.go b/adapter/utils/slice.go
index cdbfcca8..082b22ce 100644
--- a/adapter/utils/slice.go
+++ b/adapter/utils/slice.go
@@ -19,6 +19,7 @@ import (
 )
 
 type reducetype func(interface{}) interface{}
+
 type filtertype func(interface{}) bool
 
 // InSlice checks given string in string slice or not.
diff --git a/adapter/validation/util.go b/adapter/validation/util.go
index 502be750..5ff43ebc 100644
--- a/adapter/validation/util.go
+++ b/adapter/validation/util.go
@@ -27,9 +27,7 @@ const (
 	LabelTag = validation.LabelTag
 )
 
-var (
-	ErrInt64On32 = validation.ErrInt64On32
-)
+var ErrInt64On32 = validation.ErrInt64On32
 
 // CustomFunc is for custom validate function
 type CustomFunc func(v *Validation, obj interface{}, key string)
diff --git a/adapter/validation/validation_test.go b/adapter/validation/validation_test.go
index 2e29b641..547e8635 100644
--- a/adapter/validation/validation_test.go
+++ b/adapter/validation/validation_test.go
@@ -50,7 +50,6 @@ func TestMin(t *testing.T) {
 
 	assert.False(t, valid.Min(-1, 0, "min0").Ok)
 	assert.True(t, valid.Min(1, 0, "min0").Ok)
-
 }
 
 func TestMax(t *testing.T) {
@@ -502,5 +501,4 @@ func TestCanSkipAlso(t *testing.T) {
 
 	assert.Nil(t, err)
 	assert.True(t, b)
-
 }