diff --git a/cmd/gen_model.go b/cmd/gen_model.go
index 92f6bfb..ed3092a 100644
--- a/cmd/gen_model.go
+++ b/cmd/gen_model.go
@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+	"regexp"
 	"strings"
 
 	pgDatabase "git.ipao.vip/rogeecn/atomctl/pkg/postgres"
@@ -57,6 +58,14 @@ func commandGenModelE(cmd *cobra.Command, args []string) error {
 		return err
 	}
 
+	jsonReg := regexp.MustCompile(`Json\[\[?\]?(\w+)\]`)
+	builtinTypes := []string{
+		"string",
+		"int", "int8", "int16", "int32", "int64", "uint", "uint8", "uint16", "uint32", "uint64",
+		"float32", "float64",
+		"bool",
+	}
+
 	return postgres.GenerateDSN(
 		dbConf.DSN(),
 		dbConf.Schema,
@@ -94,8 +103,12 @@ func commandGenModelE(cmd *cobra.Command, args []string) error {
 										return defaultTableModelField
 									}
 
-									if strings.Contains(toType, "[") && strings.HasSuffix(toType, "]") {
-										toType = strings.Replace(toType, "[", "[fields.", 1)
+									// toType = jsonReg.ReplaceAllString(toType, "fields.$1")
+									if jsonReg.MatchString(toType) {
+										matches := jsonReg.FindStringSubmatch(toType)
+										if len(matches) == 2 && !lo.Contains(builtinTypes, matches[1]) {
+											toType = strings.Replace(toType, matches[1], "fields."+matches[1], 1)
+										}
 									}
 
 									defaultTableModelField = defaultTableModelField.
diff --git a/main_test.go b/main_test.go
index 3fc58b6..dbc8a9c 100644
--- a/main_test.go
+++ b/main_test.go
@@ -8,37 +8,24 @@ import (
 )
 
 func Test_router(t *testing.T) {
-	routerPattern := regexp.MustCompile(`^(/[\w./\-{}\(\)+:$]*)[[:blank:]]+\[(\w+)]`)
-
 	Convey("Test routerPattern", t, func() {
-		Convey("Pattern 1", func() {
-			commentLine := "/api/v1/health [GET] # Check health status"
-			matches := routerPattern.FindStringSubmatch(commentLine)
-			t.Logf("matches: %v", matches)
-		})
+		jsonReg := regexp.MustCompile(`Json\[\[?\]?(\w+)\]`)
+		items := []string{
+			"Json[abc]",
+			"Json[[]abc]",
+		}
 
-		Convey("Pattern 2", func() {
-			commentLine := "/api/v1/:health [get] "
-			matches := routerPattern.FindStringSubmatch(commentLine)
-			t.Logf("matches: %v", matches)
-		})
+		types := []string{
+			"string",
+			"int", "int8", "int16", "int32", "int64", "uint", "uint8", "uint16", "uint32", "uint64",
+			"float32", "float64",
+			"bool",
+		}
+		for _, item := range items {
+			match := jsonReg.FindStringSubmatch(item)
+			if len(match) ==2 && !lo.Contains(types, match[1]) { {
 
-		Convey("Pattern 3", func() {
-			commentLine := "/api/v1/get_users-:id [get] "
-			pattern := regexp.MustCompile(`<.*?>`)
-			commentLine = pattern.ReplaceAllString(commentLine, "")
-
-			matches := routerPattern.FindStringSubmatch(commentLine)
-			t.Logf("matches: %v", matches)
-		})
-
-		Convey("Pattern 4", func() {
-			commentLine := "/api/v1/get_users-:id<int>/name/:name<string> [get] "
-			pattern := regexp.MustCompile(`:(\w+)(<.*?>)?`)
-			commentLine = pattern.ReplaceAllString(commentLine, "{$1}")
-
-			matches := routerPattern.FindStringSubmatch(commentLine)
-			t.Logf("matches: %v", matches)
-		})
+			}
+		}
 	})
 }