diff --git a/filter.go b/filter.go
index 1194985..3c2b6a8 100644
--- a/filter.go
+++ b/filter.go
@@ -184,57 +184,37 @@ func (f *filter) getValue(dataType string, sourceValue gjson.Result, defaultValu
 
 	switch dataType {
 	case DataTypeInt8:
-		fallthrough
+		return util.StringConvert.ToInt8(sourceValueStr)
 	case DataTypeInt16:
-		fallthrough
+		return util.StringConvert.ToInt16(sourceValueStr)
 	case DataTypeInt32:
-		fallthrough
+		return util.StringConvert.ToInt32(sourceValueStr)
 	case DataTypeInt64:
-		fallthrough
+		return util.StringConvert.ToInt64(sourceValueStr)
 	case DataTypeInt:
-		var (
-			err error
-			val int64
-		)
-		err = util.ConvertAssign(&val, sourceValueStr)
-		return val, err
+		return util.StringConvert.ToInt(sourceValueStr)
 	case DataTypeUint8:
-		fallthrough
+		return util.StringConvert.ToUint8(sourceValueStr)
 	case DataTypeUint16:
-		fallthrough
+		return util.StringConvert.ToUint16(sourceValueStr)
 	case DataTypeUint32:
-		fallthrough
+		return util.StringConvert.ToUint32(sourceValueStr)
 	case DataTypeUint64:
-		fallthrough
+		return util.StringConvert.ToUint64(sourceValueStr)
 	case DataTypeUint:
-		var (
-			err error
-			val uint64
-		)
-		err = util.ConvertAssign(&val, sourceValueStr)
-		return val, err
+		return util.StringConvert.ToUint(sourceValueStr)
 	case DataTypeBool:
-		var (
-			err error
-			val bool
-		)
-		err = util.ConvertAssign(&val, sourceValueStr)
-		return val, err
+		return util.StringConvert.ToBool(sourceValueStr)
 	case DataTypeFloat32:
-		fallthrough
+		return util.StringConvert.ToFloat32(sourceValueStr)
 	case DataTypeFloat64:
-		fallthrough
+		return util.StringConvert.ToFloat64(sourceValueStr)
 	case DataTypeFloat:
-		fallthrough
+		return util.StringConvert.ToFloat64(sourceValueStr)
 	case DataTypeDouble:
-		fallthrough
+		return util.StringConvert.ToDouble(sourceValueStr)
 	case DataTypeNumber:
-		var (
-			err error
-			val float64
-		)
-		err = util.ConvertAssign(&val, sourceValueStr)
-		return val, err
+		return util.StringConvert.ToNumber(sourceValueStr)
 	case DataTypeString:
 		return sourceValueStr, nil
 	case DataTypeAny:
diff --git a/go.mod b/go.mod
index eeb28e4..c3b6d01 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,7 @@ go 1.18
 
 require (
 	git.zhangdeman.cn/zhangdeman/easylock v0.0.0-20220627070212-c590a0a1c216
-	git.zhangdeman.cn/zhangdeman/util v0.0.0-20230330082619-662152cb682d
+	git.zhangdeman.cn/zhangdeman/util v0.0.0-20230505025924-96532aff0019
 	github.com/Jeffail/gabs v1.4.0
 	github.com/pkg/errors v0.9.1
 	github.com/smartystreets/goconvey v1.7.2
@@ -19,6 +19,8 @@ require (
 	github.com/go-ini/ini v1.67.0 // indirect
 	github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 // indirect
 	github.com/jtolds/gls v4.20.0+incompatible // indirect
+	github.com/mitchellh/go-homedir v1.1.0 // indirect
+	github.com/mssola/user_agent v0.6.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/smartystreets/assertions v1.2.0 // indirect
 	github.com/spaolacci/murmur3 v1.1.0 // indirect
diff --git a/go.sum b/go.sum
index fc1eeab..571448e 100644
--- a/go.sum
+++ b/go.sum
@@ -7,6 +7,8 @@ git.zhangdeman.cn/zhangdeman/util v0.0.0-20230330065032-faba0a5a9ea1 h1:u2FdNfcG
 git.zhangdeman.cn/zhangdeman/util v0.0.0-20230330065032-faba0a5a9ea1/go.mod h1:SyRTkOz6gxUVn3S/Qtkf+rhKV0I1ym8lwsT8YjggYFs=
 git.zhangdeman.cn/zhangdeman/util v0.0.0-20230330082619-662152cb682d h1:kMQZmkYBceHM3O7wiCelSADjTyOF3EBxXTX8fgZA+6c=
 git.zhangdeman.cn/zhangdeman/util v0.0.0-20230330082619-662152cb682d/go.mod h1:qeVsrMae8ljqzcsmI+lWPU/4Rdjb9cOt4oaDUNEf1Ck=
+git.zhangdeman.cn/zhangdeman/util v0.0.0-20230505025924-96532aff0019 h1:eJ/9rEj2iI8P9I1DfCmMUvsV+n2EiAWCXnI9yVVDHO0=
+git.zhangdeman.cn/zhangdeman/util v0.0.0-20230505025924-96532aff0019/go.mod h1:z2bP5LIwRVpWSQV0/a3WIFaoarJUP8kA/0Clv0bP+8I=
 github.com/Jeffail/gabs v1.4.0 h1://5fYRRTq1edjfIrQGvdkcd22pkYUrHZ5YC/H2GJVAo=
 github.com/Jeffail/gabs v1.4.0/go.mod h1:6xMvQMK4k33lb7GUUpaAPh6nKMmemQeg5d4gn7/bOXc=
 github.com/axgle/mahonia v0.0.0-20180208002826-3358181d7394 h1:OYA+5W64v3OgClL+IrOD63t4i/RW7RqrAVl9LTZ9UqQ=
@@ -22,6 +24,10 @@ github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGa
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
 github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo=
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
+github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
+github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
+github.com/mssola/user_agent v0.6.0 h1:uwPR4rtWlCHRFyyP9u2KOV0u8iQXmS7Z7feTrstQwk4=
+github.com/mssola/user_agent v0.6.0/go.mod h1:TTPno8LPY3wAIEKRpAtkdMT0f8SE24pLRGPahjCH4uw=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=