diff --git a/.example/other/test.go b/.example/other/test.go
index 79444a4901b..786b8c761cd 100644
--- a/.example/other/test.go
+++ b/.example/other/test.go
@@ -6,6 +6,10 @@ import (
 	"github.com/gogf/gf/text/gstr"
 )
 
+const (
+	TraceIdName = "trace-id"
+)
+
 func main() {
 
 	type Sender struct {
diff --git a/.example/util/gpage/gpage.go b/.example/util/gpage/gpage.go
index 9b6071f0de2..00f80ee7af7 100644
--- a/.example/util/gpage/gpage.go
+++ b/.example/util/gpage/gpage.go
@@ -7,7 +7,7 @@ import (
 )
 
 func main() {
-	s := ghttp.GetServer()
+	s := g.Server()
 	s.BindHandler("/page/demo", func(r *ghttp.Request) {
 		page := r.GetPage(100, 10)
 		buffer, _ := gview.ParseContent(`
diff --git a/.example/util/gpage/gpage_ajax.go b/.example/util/gpage/gpage_ajax.go
index 84c4facfa58..a33a83cdca5 100644
--- a/.example/util/gpage/gpage_ajax.go
+++ b/.example/util/gpage/gpage_ajax.go
@@ -7,7 +7,7 @@ import (
 )
 
 func main() {
-	s := ghttp.GetServer()
+	s := g.Server()
 	s.BindHandler("/page/ajax", func(r *ghttp.Request) {
 		page := r.GetPage(100, 10)
 		page.AjaxActionName = "DoAjax"
diff --git a/.example/util/gpage/gpage_custom1.go b/.example/util/gpage/gpage_custom1.go
index 9571c36aa11..437a72da744 100644
--- a/.example/util/gpage/gpage_custom1.go
+++ b/.example/util/gpage/gpage_custom1.go
@@ -8,7 +8,7 @@ import (
 	"github.com/gogf/gf/util/gpage"
 )
 
-// 分页标签使用li标签包裹
+// wrapContent wraps each of the page tag with html li and ul.
 func wrapContent(page *gpage.Page) string {
 	content := page.GetContent(4)
 	content = gstr.ReplaceByMap(content, map[string]string{
@@ -21,7 +21,7 @@ func wrapContent(page *gpage.Page) string {
 }
 
 func main() {
-	s := ghttp.GetServer()
+	s := g.Server()
 	s.BindHandler("/page/custom1/*page", func(r *ghttp.Request) {
 		page := r.GetPage(100, 10)
 		content := wrapContent(page)
diff --git a/.example/util/gpage/gpage_custom2.go b/.example/util/gpage/gpage_custom2.go
index 2e84042c242..e7512ef920d 100644
--- a/.example/util/gpage/gpage_custom2.go
+++ b/.example/util/gpage/gpage_custom2.go
@@ -7,7 +7,7 @@ import (
 	"github.com/gogf/gf/util/gpage"
 )
 
-// 自定义分页名称
+// pageContent customizes the page tag name.
 func pageContent(page *gpage.Page) string {
 	page.NextPageTag = "NextPage"
 	page.PrevPageTag = "PrevPage"
@@ -22,7 +22,7 @@ func pageContent(page *gpage.Page) string {
 }
 
 func main() {
-	s := ghttp.GetServer()
+	s := g.Server()
 	s.BindHandler("/page/custom2/*page", func(r *ghttp.Request) {
 		page := r.GetPage(100, 10)
 		buffer, _ := gview.ParseContent(`
diff --git a/encoding/gbase64/gbase64_test.go b/encoding/gbase64/gbase64_test.go
index 8286b648e74..c382a239b52 100644
--- a/encoding/gbase64/gbase64_test.go
+++ b/encoding/gbase64/gbase64_test.go
@@ -8,7 +8,6 @@ package gbase64_test
 
 import (
 	"github.com/gogf/gf/debug/gdebug"
-	"github.com/gogf/gf/os/gfile"
 	"testing"
 
 	"github.com/gogf/gf/encoding/gbase64"
diff --git a/net/ghttp/ghttp_request_param_page.go b/net/ghttp/ghttp_request_param_page.go
index f6cb94fa7ff..c9fbe7d03f4 100644
--- a/net/ghttp/ghttp_request_param_page.go
+++ b/net/ghttp/ghttp_request_param_page.go
@@ -53,7 +53,7 @@ func (r *Request) GetPage(totalSize, pageSize int) *gpage.Page {
 		values := url.Query()
 		values.Set(gpage.PAGE_NAME, gpage.PAGE_PLACE_HOLDER)
 		url.RawQuery = values.Encode()
-		// Replace the encodes "{.page}" to "{.page}".
+		// Replace the encoded "{.page}" to original "{.page}".
 		url.RawQuery = gstr.Replace(url.RawQuery, "%7B.page%7D", "{.page}")
 	}
 	if url.RawQuery != "" {
diff --git a/net/ghttp/ghttp_unit_middleware_basic_test.go b/net/ghttp/ghttp_unit_middleware_basic_test.go
index 7ce9420f264..3f0eac47e54 100644
--- a/net/ghttp/ghttp_unit_middleware_basic_test.go
+++ b/net/ghttp/ghttp_unit_middleware_basic_test.go
@@ -10,7 +10,6 @@ import (
 	"fmt"
 	"github.com/gogf/gf/container/garray"
 	"github.com/gogf/gf/debug/gdebug"
-	"github.com/gogf/gf/os/gfile"
 	"net/http"
 	"testing"
 	"time"
diff --git a/net/ghttp/ghttp_unit_template_test.go b/net/ghttp/ghttp_unit_template_test.go
index 75c6395f0c8..661867c42e7 100644
--- a/net/ghttp/ghttp_unit_template_test.go
+++ b/net/ghttp/ghttp_unit_template_test.go
@@ -18,7 +18,6 @@ import (
 
 	"github.com/gogf/gf/frame/g"
 	"github.com/gogf/gf/net/ghttp"
-	"github.com/gogf/gf/os/gfile"
 	"github.com/gogf/gf/test/gtest"
 )
 
diff --git a/os/gview/gview_unit_config_test.go b/os/gview/gview_unit_config_test.go
index e901f69bf6c..a19d607014c 100644
--- a/os/gview/gview_unit_config_test.go
+++ b/os/gview/gview_unit_config_test.go
@@ -9,7 +9,6 @@ package gview_test
 import (
 	"github.com/gogf/gf/debug/gdebug"
 	"github.com/gogf/gf/frame/g"
-	"github.com/gogf/gf/os/gfile"
 	"github.com/gogf/gf/os/gview"
 	"github.com/gogf/gf/test/gtest"
 	"testing"