diff --git a/converter.go b/converter.go
index c5dec6d..8f092a1 100644
--- a/converter.go
+++ b/converter.go
@@ -64,74 +64,38 @@ func proccessPath(path string) string {
 	return path
 }
 
-// converter returns string to target type converter for a reflect.StructField
-func converter(f reflect.StructField) func(s string) (interface{}, error) {
-	switch f.Type.Kind() {
-	case reflect.Bool:
-		return func(s string) (interface{}, error) {
-			v, err := strconv.ParseBool(s)
-			return v, err
-		}
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32,
-		reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uintptr:
+func converter(t reflect.Type) func(s string) (interface{}, error) {
+	st, sf := toSwaggerType(t)
+	if st == "integer" && sf == "int32" {
 		return func(s string) (interface{}, error) {
 			v, err := strconv.Atoi(s)
 			return v, err
 		}
-	case reflect.Int64, reflect.Uint64:
+	} else if st == "integer" && sf == "int64" {
 		return func(s string) (interface{}, error) {
 			v, err := strconv.ParseInt(s, 10, 64)
 			return v, err
 		}
-	case reflect.Float32:
+	} else if st == "number" && sf == "float" {
 		return func(s string) (interface{}, error) {
 			v, err := strconv.ParseFloat(s, 32)
 			return float32(v), err
 		}
-	case reflect.Float64:
+	} else if st == "number" && sf == "double" {
 		return func(s string) (interface{}, error) {
 			v, err := strconv.ParseFloat(s, 64)
 			return v, err
 		}
-	default:
+	} else if st == "boolean" && sf == "boolean" {
+		return func(s string) (interface{}, error) {
+			v, err := strconv.ParseBool(s)
+			return v, err
+		}
+	} else if st == "array" && sf == "array" {
+		return converter(t.Elem())
+	} else {
 		return func(s string) (interface{}, error) {
 			return s, nil
 		}
 	}
 }
-
-func asString(rv reflect.Value) (string, bool) {
-	switch rv.Kind() {
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		av := rv.Int()
-		if av != 0 {
-			return strconv.FormatInt(av, 10), true
-		}
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
-		av := rv.Uint()
-		if av != 0 {
-			return strconv.FormatUint(av, 10), true
-		}
-	case reflect.Float64:
-		av := rv.Float()
-		if av != 0 {
-			return strconv.FormatFloat(av, 'g', -1, 64), true
-		}
-	case reflect.Float32:
-		av := rv.Float()
-		if av != 0 {
-			return strconv.FormatFloat(av, 'g', -1, 32), true
-		}
-	case reflect.Bool:
-		av := rv.Bool()
-		if av {
-			return strconv.FormatBool(av), true
-		}
-	case reflect.String:
-		av := rv.String()
-		if av != "" {
-			return av, true
-		}
-	}
-	return "", false
-}
diff --git a/generator.go b/generator.go
index 3598c02..23b1271 100644
--- a/generator.go
+++ b/generator.go
@@ -87,8 +87,9 @@ func (r *RawDefineDic) genSchema(v reflect.Value) *JSONSchema {
 	} else {
 		schema.Type = JSONType(st)
 		schema.Format = sf
-		if ex, ok := asString(v); ok {
-			schema.Example = ex
+		zv := reflect.Zero(v.Type())
+		if v.CanInterface() && zv.CanInterface() && v.Interface() != zv.Interface() {
+			schema.Example = v.Interface()
 		}
 	}
 	return schema
diff --git a/internal_test.go b/internal_test.go
new file mode 100644
index 0000000..e14dce2
--- /dev/null
+++ b/internal_test.go
@@ -0,0 +1,161 @@
+package echoswagger
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestParamTypes(t *testing.T) {
+	var pa interface{}
+	var pb *int64
+	var pc map[string]string
+	var pd [][]float64
+	tests := []struct {
+		p     interface{}
+		panic bool
+		name  string
+	}{
+		{
+			p:     pa,
+			panic: true,
+			name:  "Interface type",
+		},
+		{
+			p:     &pa,
+			panic: true,
+			name:  "Interface pointer type",
+		},
+		{
+			p:     &pb,
+			panic: false,
+			name:  "Int type",
+		},
+		{
+			p:     &pc,
+			panic: true,
+			name:  "Map type",
+		},
+		{
+			p:     nil,
+			panic: true,
+			name:  "Nil type",
+		},
+		{
+			p:     0,
+			panic: false,
+			name:  "Int type",
+		},
+		{
+			p:     &pd,
+			panic: false,
+			name:  "Array float64 type",
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			a := prepareApi()
+			if tt.panic {
+				assert.Panics(t, func() {
+					a.AddParamPath(tt.p, tt.name, "")
+				})
+			} else {
+				a.AddParamPath(tt.p, tt.name, "")
+				sapi, ok := a.(*api)
+				assert.Equal(t, ok, true)
+				assert.Equal(t, len(sapi.operation.Parameters), 1)
+				assert.Equal(t, tt.name, sapi.operation.Parameters[0].Name)
+			}
+		})
+	}
+}
+
+func TestSchemaTypes(t *testing.T) {
+	var pa interface{}
+	var pb map[string]string
+	type PT struct {
+		Name      string
+		ExpiredAt time.Time
+	}
+	var pc map[PT]string
+	var pd PT
+	var pe map[time.Time]string
+	var pf map[*int]string
+	type PU struct {
+		Unknown interface{}
+	}
+	var pg PU
+	tests := []struct {
+		p     interface{}
+		panic bool
+		name  string
+	}{
+		{
+			p:     pa,
+			panic: true,
+			name:  "Interface type",
+		},
+		{
+			p:     nil,
+			panic: true,
+			name:  "Nil type",
+		},
+		{
+			p:     "",
+			panic: false,
+			name:  "String type",
+		},
+		{
+			p:     &pb,
+			panic: false,
+			name:  "Map type",
+		},
+		{
+			p:     &pc,
+			panic: true,
+			name:  "Map struct type",
+		},
+		{
+			p:     pd,
+			panic: false,
+			name:  "Struct type",
+		},
+		{
+			p:     &pd,
+			panic: false,
+			name:  "Struct pointer type",
+		},
+		{
+			p:     &pe,
+			panic: false,
+			name:  "Map time.Time key type",
+		},
+		{
+			p:     &pf,
+			panic: false,
+			name:  "Map pointer key type",
+		},
+		{
+			p:     &pg,
+			panic: true,
+			name:  "Struct inner invalid type",
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			a := prepareApi()
+			if tt.panic {
+				assert.Panics(t, func() {
+					a.AddParamBody(tt.p, tt.name, "", true)
+				})
+			} else {
+				a.AddParamBody(tt.p, tt.name, "", true)
+				sapi, ok := a.(*api)
+				assert.Equal(t, ok, true)
+				assert.Equal(t, len(sapi.operation.Parameters), 1)
+				assert.Equal(t, tt.name, sapi.operation.Parameters[0].Name)
+			}
+		})
+	}
+}
diff --git a/spec_test.go b/spec_test.go
new file mode 100644
index 0000000..c21c633
--- /dev/null
+++ b/spec_test.go
@@ -0,0 +1,141 @@
+package echoswagger
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"reflect"
+	"testing"
+
+	"github.com/labstack/echo"
+	"github.com/stretchr/testify/assert"
+)
+
+var handleWithFilter func(handlerFunc echo.HandlerFunc, c echo.Context) error
+
+func TestSpec(t *testing.T) {
+	t.Run("Basic", func(t *testing.T) {
+		r := prepareApiRoot()
+		e := r.(*Root).echo
+		req := httptest.NewRequest(echo.GET, "/doc/swagger.json", nil)
+		rec := httptest.NewRecorder()
+		c := e.NewContext(req, rec)
+		j := `{"swagger":"2.0","info":{"title":"Project APIs","version":""},"host":"example.com","basePath":"/","schemes":["http"],"paths":{}}`
+		if assert.NoError(t, r.(*Root).Spec(c)) {
+			assert.Equal(t, http.StatusOK, rec.Code)
+			assert.JSONEq(t, j, rec.Body.String())
+		}
+	})
+
+	t.Run("Methods", func(t *testing.T) {
+		r := prepareApiRoot()
+		var h echo.HandlerFunc
+		r.GET("/", h)
+		r.POST("/", h)
+		r.PUT("/", h)
+		r.DELETE("/", h)
+		r.OPTIONS("/", h)
+		r.HEAD("/", h)
+		r.PATCH("/", h)
+		e := r.(*Root).echo
+		req := httptest.NewRequest(echo.GET, "/doc/swagger.json", nil)
+		rec := httptest.NewRecorder()
+		c := e.NewContext(req, rec)
+		if assert.NoError(t, r.(*Root).Spec(c)) {
+			assert.Equal(t, http.StatusOK, rec.Code)
+			s := r.(*Root).spec
+			assert.Len(t, s.Paths, 1)
+			assert.NotNil(t, s.Paths["/"].(*Path).Get)
+			assert.NotNil(t, s.Paths["/"].(*Path).Post)
+			assert.NotNil(t, s.Paths["/"].(*Path).Put)
+			assert.NotNil(t, s.Paths["/"].(*Path).Delete)
+			assert.NotNil(t, s.Paths["/"].(*Path).Options)
+			assert.NotNil(t, s.Paths["/"].(*Path).Head)
+			assert.NotNil(t, s.Paths["/"].(*Path).Patch)
+		}
+	})
+
+	t.Run("ErrorGroupSecurity", func(t *testing.T) {
+		r := prepareApiRoot()
+		e := r.(*Root).echo
+		var h echo.HandlerFunc
+		r.Group("G", "/g").SetSecurity("JWT").GET("/", h)
+		req := httptest.NewRequest(echo.GET, "/doc/swagger.json", nil)
+		rec := httptest.NewRecorder()
+		c := e.NewContext(req, rec)
+		if assert.NoError(t, r.(*Root).Spec(c)) {
+			assert.Equal(t, http.StatusInternalServerError, rec.Code)
+		}
+	})
+
+	t.Run("ErrorApiSecurity", func(t *testing.T) {
+		r := prepareApiRoot()
+		e := r.(*Root).echo
+		var h echo.HandlerFunc
+		r.GET("/", h).SetSecurity("JWT")
+		req := httptest.NewRequest(echo.GET, "/doc/swagger.json", nil)
+		rec := httptest.NewRecorder()
+		c := e.NewContext(req, rec)
+		if assert.NoError(t, r.(*Root).Spec(c)) {
+			assert.Equal(t, http.StatusInternalServerError, rec.Code)
+		}
+	})
+
+	t.Run("CleanUp", func(t *testing.T) {
+		r := prepareApiRoot()
+		e := r.(*Root).echo
+		g := r.Group("Users", "users")
+
+		var ha echo.HandlerFunc
+		g.DELETE("/:id", ha)
+
+		var hb echo.HandlerFunc
+		r.GET("/ping", hb)
+
+		req := httptest.NewRequest(echo.GET, "/doc/swagger.json", nil)
+		rec := httptest.NewRecorder()
+		c := e.NewContext(req, rec)
+		j := `{"swagger":"2.0","info":{"title":"Project APIs","version":""},"host":"example.com","basePath":"/","schemes":["http"],"paths":{"/ping":{"get":{"responses":{"default":{"description":"successful operation"}}}},"/users/{id}":{"delete":{"tags":["Users"],"responses":{"default":{"description":"successful operation"}}}}},"tags":[{"name":"Users"}]}`
+		if assert.NoError(t, r.(*Root).Spec(c)) {
+			assert.Equal(t, http.StatusOK, rec.Code)
+			assert.JSONEq(t, j, rec.Body.String())
+		}
+
+		assert.Nil(t, r.(*Root).echo)
+		assert.Nil(t, r.(*Root).defs)
+		assert.Len(t, r.(*Root).groups, 0)
+		assert.Len(t, r.(*Root).apis, 0)
+	})
+}
+
+func TestAddDefinition(t *testing.T) {
+	type DA struct {
+		Name string
+		DB   struct {
+			Name string
+		}
+	}
+	var da DA
+	r := prepareApiRoot()
+	var h echo.HandlerFunc
+	a := r.GET("/", h)
+	a.AddParamBody(&da, "DA", "DA Struct", false)
+	assert.Equal(t, len(a.(*api).operation.Parameters), 1)
+	assert.Equal(t, "DA", a.(*api).operation.Parameters[0].Name)
+	assert.Equal(t, "DA Struct", a.(*api).operation.Parameters[0].Description)
+	assert.Equal(t, "body", a.(*api).operation.Parameters[0].In)
+	assert.NotNil(t, a.(*api).operation.Parameters[0].Schema)
+	assert.Equal(t, "#/definitions/DA", a.(*api).operation.Parameters[0].Schema.Ref)
+
+	assert.NotNil(t, a.(*api).defs)
+	assert.Equal(t, reflect.ValueOf(&da).Elem(), (*a.(*api).defs)["DA"].Value)
+	assert.Equal(t, reflect.ValueOf(&da.DB).Elem(), (*a.(*api).defs)[""].Value)
+
+	e := r.(*Root).echo
+	req := httptest.NewRequest(echo.GET, "/doc/swagger.json", nil)
+	rec := httptest.NewRecorder()
+	c := e.NewContext(req, rec)
+	if assert.NoError(t, r.(*Root).Spec(c)) {
+		assert.Equal(t, http.StatusOK, rec.Code)
+		assert.Len(t, r.(*Root).spec.Definitions, 2)
+	}
+}
diff --git a/tag.go b/tag.go
index f1672a9..3cd07d0 100644
--- a/tag.go
+++ b/tag.go
@@ -88,7 +88,7 @@ func (p *Parameter) handleSwaggerTags(field reflect.StructField, name string, in
 		p.Required = true
 	}
 
-	convert := converter(field)
+	convert := converter(field.Type)
 	if t, ok := tags["enum"]; ok {
 		enums := strings.Split(t, "|")
 		var es []interface{}
@@ -129,9 +129,9 @@ func (p *Parameter) handleSwaggerTags(field reflect.StructField, name string, in
 	}
 }
 
-func (s *JSONSchema) handleSwaggerTags(field reflect.StructField, name string) {
+func (s *JSONSchema) handleSwaggerTags(f reflect.StructField, name string) {
 	propSchema := s.Properties[name]
-	tags := getSwaggerTags(field)
+	tags := getSwaggerTags(f)
 
 	if t, ok := tags["desc"]; ok {
 		propSchema.Description = t
@@ -163,7 +163,7 @@ func (s *JSONSchema) handleSwaggerTags(field reflect.StructField, name string) {
 		propSchema.ReadOnly = true
 	}
 
-	convert := converter(field)
+	convert := converter(f.Type)
 	if t, ok := tags["enum"]; ok {
 		enums := strings.Split(t, "|")
 		var es []interface{}
@@ -201,8 +201,8 @@ func (s *JSONSchema) handleSwaggerTags(field reflect.StructField, name string) {
 	}
 }
 
-func (h *Header) handleSwaggerTags(field reflect.StructField, name string) {
-	tags := getSwaggerTags(field)
+func (h *Header) handleSwaggerTags(f reflect.StructField, name string) {
+	tags := getSwaggerTags(f)
 
 	var collect string
 	if t, ok := tags["collect"]; ok && contains([]string{"csv", "ssv", "tsv", "pipes"}, t) {
@@ -232,7 +232,7 @@ func (h *Header) handleSwaggerTags(field reflect.StructField, name string) {
 		}
 	}
 
-	convert := converter(field)
+	convert := converter(f.Type)
 	if t, ok := tags["enum"]; ok {
 		enums := strings.Split(t, "|")
 		var es []interface{}
diff --git a/tag_test.go b/tag_test.go
new file mode 100644
index 0000000..af2dbfe
--- /dev/null
+++ b/tag_test.go
@@ -0,0 +1,224 @@
+package echoswagger
+
+import (
+	"encoding/xml"
+	"net/http"
+	"strconv"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestSchemaSwaggerTags(t *testing.T) {
+	type Spot struct {
+		Address string   `swagger:"desc(Address of Spot)"`
+		Matrix  [][]bool `swagger:"default(true)"`
+	}
+
+	type User struct {
+		Age    int       `swagger:"min(0),max(99)"`
+		Gender string    `swagger:"enum(male|female|other),required"`
+		CarNos string    `swagger:"minLen(5),maxLen(8)"`
+		Spots  []*Spot   `swagger:"required"`
+		Money  **float64 `swagger:"default(0),readOnly"`
+	}
+
+	a := prepareApi()
+	a.AddParamBody(&User{}, "Body", "", true)
+	sapi := a.(*api)
+	assert.Len(t, sapi.operation.Parameters, 1)
+	assert.Len(t, *sapi.defs, 2)
+
+	su := (*sapi.defs)["User"].Schema
+	pu := su.Properties
+	assert.NotNil(t, su)
+	assert.NotNil(t, pu)
+	assert.Len(t, su.Required, 2)
+	assert.ElementsMatch(t, su.Required, []string{"Spots", "Gender"})
+	assert.Equal(t, *pu["Age"].Minimum, float64(0))
+	assert.Equal(t, *pu["Age"].Maximum, float64(99))
+	assert.Len(t, pu["Gender"].Enum, 3)
+	assert.ElementsMatch(t, pu["Gender"].Enum, []string{"male", "female", "other"})
+	assert.Equal(t, *pu["CarNos"].MinLength, int(5))
+	assert.Equal(t, *pu["CarNos"].MaxLength, int(8))
+	assert.Equal(t, pu["Money"].DefaultValue, float64(0))
+	assert.Equal(t, pu["Money"].ReadOnly, true)
+
+	ss := (*sapi.defs)["Spot"].Schema
+	ps := ss.Properties
+	assert.NotNil(t, ss)
+	assert.NotNil(t, ps)
+	assert.Equal(t, ps["Address"].Description, "Address of Spot")
+	assert.Equal(t, ps["Matrix"].Items.Items.DefaultValue, true)
+}
+
+func TestParamSwaggerTags(t *testing.T) {
+	type SearchInput struct {
+		Q              string     `query:"q" swagger:"minLen(5),maxLen(8)"`
+		BrandIds       string     `query:"brandIds" swagger:"collect(csv),allowEmpty"`
+		Sortby         [][]string `query:"sortby" swagger:"default(id),allowEmpty"`
+		Order          []int      `query:"order" swagger:"enum(0|1|n)"`
+		SkipCount      int        `query:"skipCount" swagger:"min(0),max(999)"`
+		MaxResultCount int        `query:"maxResultCount" swagger:"desc(items count in one page)"`
+	}
+
+	a := prepareApi()
+	a.AddParamQueryNested(SearchInput{})
+	o := a.(*api).operation
+	assert.Len(t, o.Parameters, 6)
+	assert.Equal(t, *o.Parameters[0].MinLength, 5)
+	assert.Equal(t, *o.Parameters[0].MaxLength, 8)
+	assert.Equal(t, o.Parameters[1].CollectionFormat, "csv")
+	assert.Equal(t, o.Parameters[1].AllowEmptyValue, true)
+	assert.Equal(t, o.Parameters[2].AllowEmptyValue, true)
+	assert.Equal(t, o.Parameters[2].Items.Items.Default, "id")
+	assert.ElementsMatch(t, o.Parameters[3].Items.Enum, []int{0, 1})
+	assert.Equal(t, *o.Parameters[4].Minimum, float64(0))
+	assert.Equal(t, *o.Parameters[4].Maximum, float64(999))
+	assert.Equal(t, o.Parameters[5].Description, "items count in one page")
+}
+
+func TestHeaderSwaggerTags(t *testing.T) {
+	type SearchInput struct {
+		Q              string     `json:"q" swagger:"minLen(5),maxLen(8)"`
+		BrandIds       string     `json:"brandIds" swagger:"collect(csv)"`
+		Sortby         [][]string `json:"sortby" swagger:"default(id)"`
+		Order          []int      `json:"order" swagger:"enum(0|1|n)"`
+		SkipCount      int        `json:"skipCount" swagger:"min(0),max(999)"`
+		MaxResultCount int        `json:"maxResultCount" swagger:"desc(items count in one page)"`
+	}
+
+	a := prepareApi()
+	a.AddResponse(http.StatusOK, "Resp", nil, SearchInput{})
+	o := a.(*api).operation
+	c := strconv.Itoa(http.StatusOK)
+	h := o.Responses[c].Headers
+	assert.Len(t, h, 6)
+	assert.Equal(t, *h["q"].MinLength, 5)
+	assert.Equal(t, *h["q"].MaxLength, 8)
+	assert.Equal(t, h["brandIds"].CollectionFormat, "csv")
+	assert.Equal(t, h["sortby"].Items.Items.Default, "id")
+	assert.ElementsMatch(t, h["order"].Items.Enum, []int{0, 1})
+	assert.Equal(t, *h["skipCount"].Minimum, float64(0))
+	assert.Equal(t, *h["skipCount"].Maximum, float64(999))
+	assert.Equal(t, h["maxResultCount"].Description, "items count in one page")
+}
+
+func TestXMLTags(t *testing.T) {
+	type Spot struct {
+		Id      int64  `xml:",attr"`
+		Comment string `xml:",comment"`
+		Address string `xml:"AddressDetail"`
+		Enable  bool   `xml:"-"`
+	}
+
+	type User struct {
+		X     xml.Name `xml:"Users"`
+		Spots []*Spot  `xml:"Spots>Spot"`
+	}
+
+	a := prepareApi()
+	a.AddParamBody(&User{}, "Body", "", true)
+	sapi, ok := a.(*api)
+	assert.Equal(t, ok, true)
+	assert.Len(t, sapi.operation.Parameters, 1)
+	assert.Len(t, *sapi.defs, 2)
+
+	su := (*sapi.defs)["User"].Schema
+	pu := su.Properties
+	assert.NotNil(t, su)
+	assert.NotNil(t, pu)
+	assert.Equal(t, su.XML.Name, "Users")
+	assert.NotNil(t, pu["Spots"].XML)
+	assert.Equal(t, pu["Spots"].XML.Name, "Spots")
+	assert.Equal(t, pu["Spots"].XML.Wrapped, true)
+
+	ss := (*sapi.defs)["Spot"].Schema
+	ps := ss.Properties
+	assert.NotNil(t, ss)
+	assert.NotNil(t, ps)
+	assert.Equal(t, ss.XML.Name, "Spot")
+	assert.Equal(t, ps["Id"].XML.Attribute, "Id")
+	assert.Nil(t, ps["Comment"].XML)
+	assert.Equal(t, ps["Address"].XML.Name, "AddressDetail")
+	assert.Nil(t, ps["Enable"].XML)
+}
+
+func TestEnumInSchema(t *testing.T) {
+	type User struct {
+		Id      int64   `swagger:"enum(0|-1|200000|9.9)"`
+		Age     int     `swagger:"enum(0|-1|200000|9.9)"`
+		Status  string  `swagger:"enum(normal|stop)"`
+		Amount  float64 `swagger:"enum(0|-0.1|ok|200.555)"`
+		Grade   float32 `swagger:"enum(0|-0.5|ok|200.5)"`
+		Deleted bool    `swagger:"enum(t|F),default(True)"`
+	}
+
+	a := prepareApi()
+	a.AddParamBody(&User{}, "Body", "", true)
+	sapi, ok := a.(*api)
+	assert.Equal(t, ok, true)
+	assert.Len(t, sapi.operation.Parameters, 1)
+	assert.Len(t, *sapi.defs, 1)
+
+	s := (*sapi.defs)["User"].Schema
+	assert.NotNil(t, s)
+
+	p := s.Properties
+
+	assert.Len(t, p["Id"].Enum, 3)
+	assert.ElementsMatch(t, p["Id"].Enum, []interface{}{int64(0), int64(-1), int64(200000)})
+
+	assert.Len(t, p["Age"].Enum, 3)
+	assert.ElementsMatch(t, p["Age"].Enum, []interface{}{0, -1, 200000})
+
+	assert.Len(t, p["Status"].Enum, 2)
+	assert.ElementsMatch(t, p["Status"].Enum, []interface{}{"normal", "stop"})
+
+	assert.Len(t, p["Amount"].Enum, 3)
+	assert.ElementsMatch(t, p["Amount"].Enum, []interface{}{float64(0), float64(-0.1), float64(200.555)})
+
+	assert.Len(t, p["Grade"].Enum, 3)
+	assert.ElementsMatch(t, p["Grade"].Enum, []interface{}{float32(0), float32(-0.5), float32(200.5)})
+
+	assert.Len(t, p["Deleted"].Enum, 2)
+	assert.ElementsMatch(t, p["Deleted"].Enum, []interface{}{true, false})
+	assert.Equal(t, p["Deleted"].DefaultValue, true)
+}
+
+func TestExampleInSchema(t *testing.T) {
+	u := struct {
+		Id      int64
+		Age     int
+		Status  string
+		Amount  float64
+		Grade   float32
+		Deleted bool
+	}{
+		Id:      10000000001,
+		Age:     18,
+		Status:  "normal",
+		Amount:  195.50,
+		Grade:   5.5,
+		Deleted: true,
+	}
+
+	a := prepareApi()
+	a.AddParamBody(u, "Body", "", true)
+	sapi, ok := a.(*api)
+	assert.Equal(t, ok, true)
+	assert.Len(t, sapi.operation.Parameters, 1)
+	assert.Len(t, *sapi.defs, 1)
+
+	s := (*sapi.defs)[""].Schema
+	assert.NotNil(t, s)
+
+	p := s.Properties
+
+	assert.Equal(t, p["Id"].Example, u.Id)
+	assert.Equal(t, p["Age"].Example, u.Age)
+	assert.Equal(t, p["Status"].Example, u.Status)
+	assert.Equal(t, p["Amount"].Example, u.Amount)
+	assert.Equal(t, p["Grade"].Example, u.Grade)
+	assert.Equal(t, p["Deleted"].Example, u.Deleted)
+}
diff --git a/utils.go b/utils.go
index 9fc5f11..2ac203c 100644
--- a/utils.go
+++ b/utils.go
@@ -40,29 +40,19 @@ func equals(a []string, b []string) bool {
 }
 
 func indirect(v reflect.Value) reflect.Value {
-	t := v.Type()
-	v = reflect.Indirect(v)
-	if !v.IsValid() {
-		v = reflect.New(t)
-	}
 	if v.Kind() == reflect.Ptr {
-		return indirect(v)
+		ev := v.Elem()
+		if !ev.IsValid() {
+			ev = reflect.New(v.Type().Elem())
+		}
+		return indirect(ev)
 	}
 	return v
 }
 
 func indirectValue(p interface{}) reflect.Value {
 	v := reflect.ValueOf(p)
-LoopValue:
-	v = reflect.Indirect(v)
-	if !v.IsValid() {
-		v = reflect.New(reflect.TypeOf(p))
-	}
-	if v.Kind() == reflect.Ptr {
-		goto LoopValue
-	}
-	// TODO 遍历所有子项，为Invalid初始化Value
-	return v
+	return indirect(v)
 }
 
 func indirectType(p interface{}) reflect.Type {