diff --git a/g/encoding/gjson/gjson_api_new_load.go b/g/encoding/gjson/gjson_api_new_load.go
index 22bbbc149..624982a58 100644
--- a/g/encoding/gjson/gjson_api_new_load.go
+++ b/g/encoding/gjson/gjson_api_new_load.go
@@ -11,7 +11,10 @@ import (
 	"bytes"
 	"encoding/json"
 	"errors"
-	"fmt"
+	"reflect"
+
+	"github.com/gogf/gf/g/os/gfile"
+
 	"github.com/gogf/gf/g/encoding/gtoml"
 	"github.com/gogf/gf/g/encoding/gxml"
 	"github.com/gogf/gf/g/encoding/gyaml"
@@ -19,7 +22,6 @@ import (
 	"github.com/gogf/gf/g/os/gfcache"
 	"github.com/gogf/gf/g/text/gregex"
 	"github.com/gogf/gf/g/util/gconv"
-	"reflect"
 )
 
 // New creates a Json object with any variable type of <data>,
@@ -128,64 +130,82 @@ func DecodeToJson(data interface{}, unsafe ...bool) (*Json, error) {
 // Load loads content from specified file <path>,
 // and creates a Json object from its content.
 func Load(path string, unsafe ...bool) (*Json, error) {
-	return LoadContent(gfcache.GetBinContents(path), unsafe...)
+	return doLoadContent(gfile.Ext(path), gfcache.GetBinContents(path), unsafe...)
 }
 
-// LoadContent creates a Json object from given content,
-// it checks the data type of <content> automatically,
-// supporting JSON, XML, YAML and TOML types of data.
-func LoadContent(data interface{}, unsafe ...bool) (*Json, error) {
+func LoadJson(data interface{}, unsafe ...bool) (*Json, error) {
+	return doLoadContent("json", gconv.Bytes(data), unsafe...)
+}
+
+func LoadXml(data interface{}, unsafe ...bool) (*Json, error) {
+	return doLoadContent("xml", gconv.Bytes(data), unsafe...)
+}
+
+func LoadYaml(data interface{}, unsafe ...bool) (*Json, error) {
+	return doLoadContent("yaml", gconv.Bytes(data), unsafe...)
+}
+
+func LoadToml(data interface{}, unsafe ...bool) (*Json, error) {
+	return doLoadContent("toml", gconv.Bytes(data), unsafe...)
+}
+
+func doLoadContent(dataType string, data []byte, unsafe ...bool) (*Json, error) {
 	var err error
 	var result interface{}
-	b := gconv.Bytes(data)
-	t := ""
-	if len(b) == 0 {
+	if len(data) == 0 {
 		return New(nil, unsafe...), nil
 	}
-	// auto check data type
-	if json.Valid(b) {
-		t = "json"
-	} else if gregex.IsMatch(`^<.+>[\S\s]+<.+>$`, b) {
-		t = "xml"
-	} else if gregex.IsMatch(`^[\s\t]*\w+\s*:\s*.+`, b) || gregex.IsMatch(`\n[\s\t]*\w+\s*:\s*.+`, b) {
-		t = "yml"
-	} else if gregex.IsMatch(`^[\s\t]*\w+\s*=\s*.+`, b) || gregex.IsMatch(`\n[\s\t]*\w+\s*=\s*.+`, b) {
-		t = "toml"
-	} else {
-		return nil, errors.New("unsupported data type")
-	}
-	// convert to json type data
-	switch t {
+	switch dataType {
 	case "json", ".json":
-		// ok
+		decoder := json.NewDecoder(bytes.NewReader(data))
+		decoder.UseNumber()
+		if err = decoder.Decode(&result); err != nil {
+			return nil, err
+		}
+
 	case "xml", ".xml":
-		// TODO UseNumber
-		b, err = gxml.ToJson(b)
+		if result, err = gxml.Decode(data); err != nil {
+			return nil, err
+		}
 
 	case "yml", "yaml", ".yml", ".yaml":
-		// TODO UseNumber
-		b, err = gyaml.ToJson(b)
+		if result, err = gyaml.Decode(data); err != nil {
+			return nil, err
+		}
 
 	case "toml", ".toml":
-		// TODO UseNumber
-		b, err = gtoml.ToJson(b)
+		if result, err = gtoml.Decode(data); err != nil {
+			return nil, err
+		}
 
 	default:
-		err = errors.New("nonsupport type " + t)
+		err = errors.New("unsupported type for loading")
 	}
 	if err != nil {
 		return nil, err
 	}
-	if result == nil {
-		decoder := json.NewDecoder(bytes.NewReader(b))
-		decoder.UseNumber()
-		if err := decoder.Decode(&result); err != nil {
-			return nil, err
-		}
-		switch result.(type) {
-		case string, []byte:
-			return nil, fmt.Errorf(`json decoding failed for content: %s`, string(b))
-		}
-	}
 	return New(result, unsafe...), nil
 }
+
+func LoadContent(data interface{}, unsafe ...bool) (*Json, error) {
+	content := gconv.Bytes(data)
+	if len(content) == 0 {
+		return New(nil, unsafe...), nil
+	}
+	return doLoadContent(checkDataType(content), content, unsafe...)
+
+}
+
+func checkDataType(content []byte) string {
+	if json.Valid(content) {
+		return "json"
+	} else if gregex.IsMatch(`^<.+>[\S\s]+<.+>$`, content) {
+		return "xml"
+	} else if gregex.IsMatch(`^[\s\t]*\w+\s*:\s*.+`, content) || gregex.IsMatch(`\n[\s\t]*\w+\s*:\s*.+`, content) {
+		return "yml"
+	} else if gregex.IsMatch(`^[\s\t]*\w+\s*=\s*.+`, content) || gregex.IsMatch(`\n[\s\t]*\w+\s*=\s*.+`, content) {
+		return "toml"
+	} else {
+		return ""
+	}
+}
diff --git a/g/net/ghttp/ghttp_request_post.go b/g/net/ghttp/ghttp_request_post.go
index 193544256..64345a858 100644
--- a/g/net/ghttp/ghttp_request_post.go
+++ b/g/net/ghttp/ghttp_request_post.go
@@ -7,6 +7,7 @@
 package ghttp
 
 import (
+	"github.com/gogf/gf/g/container/gvar"
 	"github.com/gogf/gf/g/internal/structs"
 	"github.com/gogf/gf/g/util/gconv"
 )
@@ -32,7 +33,6 @@ func (r *Request) AddPost(key string, value string) {
 	r.PostForm[key] = append(r.PostForm[key], value)
 }
 
-// 获得post参数
 func (r *Request) GetPost(key string, def ...interface{}) []string {
 	r.initPost()
 	if v, ok := r.PostForm[key]; ok {
@@ -44,6 +44,10 @@ func (r *Request) GetPost(key string, def ...interface{}) []string {
 	return nil
 }
 
+func (r *Request) GetPostVar(key string, def ...interface{}) *gvar.Var {
+	return gvar.New(r.GetPostString(key, def...), true)
+}
+
 func (r *Request) GetPostString(key string, def ...interface{}) string {
 	value := r.GetPost(key, def...)
 	if value != nil && value[0] != "" {
diff --git a/g/net/ghttp/ghttp_request_query.go b/g/net/ghttp/ghttp_request_query.go
index 5b0eed70e..565c82a0d 100644
--- a/g/net/ghttp/ghttp_request_query.go
+++ b/g/net/ghttp/ghttp_request_query.go
@@ -9,6 +9,8 @@ package ghttp
 import (
 	"strings"
 
+	"github.com/gogf/gf/g/container/gvar"
+
 	"github.com/gogf/gf/g/internal/structs"
 	"github.com/gogf/gf/g/util/gconv"
 )
@@ -54,6 +56,10 @@ func (r *Request) GetQuery(key string, def ...interface{}) []string {
 	return nil
 }
 
+func (r *Request) GetQueryVar(key string, def ...interface{}) *gvar.Var {
+	return gvar.New(r.GetQueryString(key, def...), true)
+}
+
 func (r *Request) GetQueryString(key string, def ...interface{}) string {
 	value := r.GetQuery(key, def...)
 	if value != nil && value[0] != "" {