diff --git a/helper/maps/map.go b/helper/maps/map.go
index 54557b0..d11f2a4 100644
--- a/helper/maps/map.go
+++ b/helper/maps/map.go
@@ -49,6 +49,11 @@ func AnyAnyToStrAny(m map[any]any) (r map[string]any) {
 	return
 }
 
+func IsExists[K comparable, V any](m map[K]V, k K) bool {
+	_, ok := m[k]
+	return ok
+}
+
 func Reduce[T, V any, K comparable](m map[K]V, fn func(K, V, T) T, r T) T {
 	for k, v := range m {
 		r = fn(k, v, r)
diff --git a/helper/number/number_test.go b/helper/number/number_test.go
index 5cc7a94..4cfb19f 100644
--- a/helper/number/number_test.go
+++ b/helper/number/number_test.go
@@ -2,6 +2,7 @@ package number
 
 import (
 	"fmt"
+	"golang.org/x/exp/constraints"
 	"reflect"
 	"testing"
 )
@@ -195,10 +196,10 @@ func TestRand(t *testing.T) {
 }
 
 func TestAbs(t *testing.T) {
-	type args[T Number] struct {
+	type args[T constraints.Integer | constraints.Float] struct {
 		n T
 	}
-	type testCase[T Number] struct {
+	type testCase[T constraints.Integer | constraints.Float] struct {
 		name string
 		args args[T]
 		want T
diff --git a/helper/strings/strings.go b/helper/strings/strings.go
index c1af80b..8252a48 100644
--- a/helper/strings/strings.go
+++ b/helper/strings/strings.go
@@ -3,7 +3,9 @@ package strings
 import (
 	"crypto/md5"
 	"fmt"
+	"golang.org/x/exp/constraints"
 	"io"
+	"strconv"
 	"strings"
 )
 
@@ -20,6 +22,17 @@ func Join(s ...string) (str string) {
 	return
 }
 
+func ToInteger[T constraints.Integer](s string, defaults T) T {
+	if s == "" {
+		return defaults
+	}
+	i, err := strconv.ParseInt(s, 10, 64)
+	if err != nil {
+		return defaults
+	}
+	return T(i)
+}
+
 func Md5(str string) string {
 	h := md5.New()
 	_, err := io.WriteString(h, str)
diff --git a/helper/strings/strings_test.go b/helper/strings/strings_test.go
index a04457c..636bb39 100644
--- a/helper/strings/strings_test.go
+++ b/helper/strings/strings_test.go
@@ -1,6 +1,9 @@
 package strings
 
-import "testing"
+import (
+	"golang.org/x/exp/constraints"
+	"testing"
+)
 
 func TestStrJoin(t *testing.T) {
 	type args struct {
@@ -21,3 +24,32 @@ func TestStrJoin(t *testing.T) {
 		})
 	}
 }
+
+func TestToInteger(t *testing.T) {
+	type args[T constraints.Integer] struct {
+		s string
+		z T
+	}
+	type testCase[T constraints.Integer] struct {
+		name string
+		args args[T]
+		want T
+	}
+	tests := []testCase[int64]{
+		{
+			name: "t1",
+			args: args[int64]{
+				"10",
+				0,
+			},
+			want: int64(10),
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := ToInteger[int64](tt.args.s, tt.args.z); got != tt.want {
+				t.Errorf("StrToInt() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
diff --git a/internal/actions/comment.go b/internal/actions/comment.go
index 846bdca..8f6faca 100644
--- a/internal/actions/comment.go
+++ b/internal/actions/comment.go
@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"github.com/fthvgb1/wp-go/helper/slice"
+	str "github.com/fthvgb1/wp-go/helper/strings"
 	"github.com/fthvgb1/wp-go/internal/mail"
 	"github.com/fthvgb1/wp-go/internal/pkg/cache"
 	"github.com/fthvgb1/wp-go/internal/pkg/config"
@@ -14,7 +15,6 @@ import (
 	"io"
 	"net/http"
 	"net/url"
-	"strconv"
 	"strings"
 	"time"
 )
@@ -92,8 +92,8 @@ func PostComment(c *gin.Context) {
 		}
 		cc := c.Copy()
 		go func() {
-			id, err := strconv.ParseUint(i, 10, 64)
-			if err != nil {
+			id := str.ToInteger[uint64](i, 0)
+			if id <= 0 {
 				logs.ErrPrintln(err, "获取文档id", i)
 				return
 			}
diff --git a/internal/actions/detail.go b/internal/actions/detail.go
index 54e9085..c40647b 100644
--- a/internal/actions/detail.go
+++ b/internal/actions/detail.go
@@ -2,6 +2,7 @@ package actions
 
 import (
 	"fmt"
+	str "github.com/fthvgb1/wp-go/helper/strings"
 	"github.com/fthvgb1/wp-go/internal/pkg/cache"
 	"github.com/fthvgb1/wp-go/internal/pkg/logs"
 	"github.com/fthvgb1/wp-go/internal/plugins"
@@ -10,7 +11,6 @@ import (
 	"github.com/gin-contrib/sessions"
 	"github.com/gin-gonic/gin"
 	"net/http"
-	"strconv"
 )
 
 type detailHandler struct {
@@ -47,18 +47,11 @@ func Detail(c *gin.Context) {
 		t := theme.GetTemplateName()
 		theme.Hook(t, code, c, ginH, plugins.Detail, status)
 	}()
-	id := c.Param("id")
-	Id := 0
-	if id != "" {
-		Id, err = strconv.Atoi(id)
-		if err != nil {
-			return
-		}
-	}
-	ID := uint64(Id)
+	ID := str.ToInteger[uint64](c.Param("id"), 0)
+
 	maxId, err := cache.GetMaxPostId(c)
 	logs.ErrPrintln(err, "get max post id")
-	if ID > maxId || err != nil {
+	if ID > maxId || ID <= 0 || err != nil {
 		return
 	}
 	post, err := cache.GetPostById(c, ID)
@@ -92,12 +85,7 @@ func Detail(c *gin.Context) {
 	ginH["post"] = post
 	ginH["showComment"] = showComment
 	ginH["prev"] = prev
-	depth := wpconfig.Options.Value("thread_comments_depth")
-	d, err := strconv.Atoi(depth)
-	if err != nil {
-		logs.ErrPrintln(err, "get comment depth ", depth)
-		d = 5
-	}
+	d := str.ToInteger(wpconfig.Options.Value("thread_comments_depth"), 5)
 	ginH["maxDep"] = d
 	ginH["next"] = next
 	ginH["user"] = user
diff --git a/internal/actions/index.go b/internal/actions/index.go
index 47c6b2a..852d758 100644
--- a/internal/actions/index.go
+++ b/internal/actions/index.go
@@ -3,6 +3,7 @@ package actions
 import (
 	"errors"
 	"fmt"
+	"github.com/fthvgb1/wp-go/helper/maps"
 	"github.com/fthvgb1/wp-go/helper/number"
 	"github.com/fthvgb1/wp-go/helper/slice"
 	str "github.com/fthvgb1/wp-go/helper/strings"
@@ -52,13 +53,12 @@ type indexHandle struct {
 }
 
 func newIndexHandle(ctx *gin.Context) *indexHandle {
-	size := wpconfig.Options.Value("posts_per_page")
-	si, _ := strconv.Atoi(size)
+	size := str.ToInteger(wpconfig.Options.Value("posts_per_page"), 10)
 	return &indexHandle{
 		c:              ctx,
 		session:        sessions.Default(ctx),
 		page:           1,
-		pageSize:       si,
+		pageSize:       size,
 		paginationStep: 1,
 		titleL:         wpconfig.Options.Value("blogname"),
 		titleR:         wpconfig.Options.Value("blogdescription"),
@@ -93,24 +93,20 @@ func (h *indexHandle) getSearchKey() string {
 	return fmt.Sprintf("action:%s|%s|%s|%s|%s|%s|%d|%d", h.author, h.search, h.orderBy, h.order, h.category, h.categoryType, h.page, h.pageSize)
 }
 
-var orders = []string{"asc", "desc"}
+var orders = map[string]struct{}{"asc": {}, "desc": {}}
 
 func (h *indexHandle) parseParams() (err error) {
 	h.order = h.c.Query("order")
-
-	if !slice.IsContained(h.order, orders) {
+	if !maps.IsExists(orders, h.order) {
 		order := config.GetConfig().PostOrder
 		h.order = "asc"
-		if order != "" && slice.IsContained(order, orders) {
+		if order != "" && maps.IsExists(orders, order) {
 			h.order = order
 		}
 	}
 	year := h.c.Param("year")
 	if year != "" {
-		y, er := strconv.Atoi(year)
-		if er != nil {
-			return err
-		}
+		y := str.ToInteger(year, -1)
 		if y > time.Now().Year() || y <= 1970 {
 			return errors.New(str.Join("year err : ", year))
 		}
@@ -120,11 +116,8 @@ func (h *indexHandle) parseParams() (err error) {
 	}
 	month := h.c.Param("month")
 	if month != "" {
-		m, err := strconv.Atoi(month)
-		if err != nil {
-			return err
-		}
-		if _, ok := months[m]; !ok {
+		m := str.ToInteger(month, -1)
+		if !maps.IsExists(months, m) {
 			return errors.New(str.Join("months err ", month))
 		}
 
@@ -137,27 +130,26 @@ func (h *indexHandle) parseParams() (err error) {
 		h.scene = plugins.Archive
 	}
 	category := h.c.Param("category")
-	if category == "" {
-		category = h.c.Param("tag")
-		if category != "" {
-			h.scene = plugins.Tag
-			allNames := cache.AllCategoryTagsNames(h.c, plugins.Tag)
-			if _, ok := allNames[category]; !ok {
-				return errors.New(str.Join("not exists tag ", category))
-			}
-			h.categoryType = "post_tag"
-			h.header = fmt.Sprintf("标签： <span>%s</span>", category)
-		}
-	} else {
+	if category != "" {
 		h.scene = plugins.Category
-		allNames := cache.AllCategoryTagsNames(h.c, plugins.Category)
-		if _, ok := allNames[category]; !ok {
+		if !maps.IsExists(cache.AllCategoryTagsNames(h.c, plugins.Category), category) {
 			return errors.New(str.Join("not exists category ", category))
 		}
 		h.categoryType = "category"
 		h.header = fmt.Sprintf("分类： <span>%s</span>", category)
+		h.category = category
 	}
-	h.category = category
+	tag := h.c.Param("tag")
+	if tag != "" {
+		h.scene = plugins.Tag
+		if !maps.IsExists(cache.AllCategoryTagsNames(h.c, plugins.Tag), tag) {
+			return errors.New(str.Join("not exists tag ", tag))
+		}
+		h.categoryType = "post_tag"
+		h.header = fmt.Sprintf("标签： <span>%s</span>", tag)
+		h.category = tag
+	}
+
 	username := h.c.Param("author")
 	if username != "" {
 		allUsername, er := cache.GetAllUsername(h.c)
@@ -165,7 +157,7 @@ func (h *indexHandle) parseParams() (err error) {
 			err = er
 			return
 		}
-		if _, ok := allUsername[username]; !ok {
+		if !maps.IsExists(allUsername, username) {
 			err = errors.New(str.Join("user ", username, " is not exists"))
 			return
 		}
@@ -179,9 +171,9 @@ func (h *indexHandle) parseParams() (err error) {
 			"post_author", "=", strconv.FormatUint(user.Id, 10), "int",
 		})
 	}
-	if category != "" {
+	if h.category != "" {
 		h.where = append(h.where, []string{
-			"d.name", category,
+			"d.name", h.category,
 		}, []string{"taxonomy", h.categoryType})
 		h.join = append(h.join, []string{
 			"a", "left join", "wp_term_relationships b", "a.Id=b.object_id",
@@ -190,7 +182,7 @@ func (h *indexHandle) parseParams() (err error) {
 		}, []string{
 			"left join", "wp_terms d", "c.term_id=d.term_id",
 		})
-		h.setTitleLR(category, wpconfig.Options.Value("blogname"))
+		h.setTitleLR(h.category, wpconfig.Options.Value("blogname"))
 	}
 	s := h.c.Query("s")
 	if s != "" && strings.Replace(s, " ", "", -1) != "" {
@@ -206,15 +198,7 @@ func (h *indexHandle) parseParams() (err error) {
 		h.search = s
 		h.scene = plugins.Search
 	}
-	p := h.c.Query("paged")
-	if p == "" {
-		p = h.c.Param("page")
-	}
-	if p != "" {
-		if pa, err := strconv.Atoi(p); err == nil {
-			h.page = pa
-		}
-	}
+	h.page = str.ToInteger(h.c.Param("page"), 1)
 	total := int(atomic.LoadInt64(&dao.TotalRaw))
 	if total > 0 && total < (h.page-1)*h.pageSize {
 		h.page = 1
diff --git a/internal/pkg/cache/feed.go b/internal/pkg/cache/feed.go
index 1fa195b..0231ba5 100644
--- a/internal/pkg/cache/feed.go
+++ b/internal/pkg/cache/feed.go
@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"github.com/fthvgb1/wp-go/cache"
 	"github.com/fthvgb1/wp-go/helper/slice"
+	str "github.com/fthvgb1/wp-go/helper/strings"
 	"github.com/fthvgb1/wp-go/internal/pkg/logs"
 	"github.com/fthvgb1/wp-go/internal/pkg/models"
 	"github.com/fthvgb1/wp-go/internal/plugins"
@@ -11,7 +12,6 @@ import (
 	"github.com/fthvgb1/wp-go/plugin/digest"
 	"github.com/fthvgb1/wp-go/rss2"
 	"github.com/gin-gonic/gin"
-	"strconv"
 	"strings"
 	"time"
 )
@@ -93,17 +93,10 @@ func feed(arg ...any) (xml []string, err error) {
 func postFeed(arg ...any) (x string, err error) {
 	c := arg[0].(*gin.Context)
 	id := arg[1].(string)
-	Id := 0
-	if id != "" {
-		Id, err = strconv.Atoi(id)
-		if err != nil {
-			return
-		}
-	}
-	ID := uint64(Id)
+	ID := str.ToInteger[uint64](id, 0)
 	maxId, err := GetMaxPostId(c)
 	logs.ErrPrintln(err, "get max post id")
-	if ID > maxId || err != nil {
+	if ID < 1 || ID > maxId || err != nil {
 		return
 	}
 	post, err := GetPostById(c, ID)