diff --git a/net/ghttp/ghttp_request.go b/net/ghttp/ghttp_request.go
index dd7ccaece..d3ee68248 100644
--- a/net/ghttp/ghttp_request.go
+++ b/net/ghttp/ghttp_request.go
@@ -46,7 +46,7 @@ type Request struct {
 	postMap         map[string]interface{} // POST解析参数
 	deleteMap       map[string]interface{} // DELETE解析参数
 	routerMap       map[string]interface{} // 路由解析参数
-	rawVarMap       map[string]interface{} // 原始数据参数
+	rawMap          map[string]interface{} // 原始数据参数
 	error           error                  // 当前请求执行错误
 	exit            bool                   // 是否退出当前请求流程执行
 	params          map[string]interface{} // 开发者自定义参数(请求流程中有效)
diff --git a/net/ghttp/ghttp_request_method_delete.go b/net/ghttp/ghttp_request_method_delete.go
index 26baef3b1..218bb824d 100644
--- a/net/ghttp/ghttp_request_method_delete.go
+++ b/net/ghttp/ghttp_request_method_delete.go
@@ -111,7 +111,7 @@ func (r *Request) GetDeleteInterfaces(key string, def ...interface{}) []interfac
 }
 
 // 获取指定键名的关联数组，并且给定当指定键名不存在时的默认值。
-// 当不指定键值对关联数组时，默认获取POST方式提交的所有的提交键值对数据。
+// 当不指定键值对关联数组时，默认获取DELETE方式提交的所有的提交键值对数据。
 func (r *Request) GetDeleteMap(kvMap ...map[string]interface{}) map[string]interface{} {
 	r.initDelete()
 	if len(kvMap) > 0 {
@@ -132,7 +132,7 @@ func (r *Request) GetDeleteMap(kvMap ...map[string]interface{}) map[string]inter
 func (r *Request) GetDeleteMapStrStr(kvMap ...map[string]interface{}) map[string]string {
 	deleteMap := r.GetDeleteMap(kvMap...)
 	if len(deleteMap) > 0 {
-		m := make(map[string]string)
+		m := make(map[string]string, len(deleteMap))
 		for k, v := range deleteMap {
 			m[k] = gconv.String(v)
 		}
@@ -144,7 +144,7 @@ func (r *Request) GetDeleteMapStrStr(kvMap ...map[string]interface{}) map[string
 func (r *Request) GetDeleteMapStrVar(kvMap ...map[string]interface{}) map[string]*gvar.Var {
 	deleteMap := r.GetDeleteMap(kvMap...)
 	if len(deleteMap) > 0 {
-		m := make(map[string]*gvar.Var)
+		m := make(map[string]*gvar.Var, len(deleteMap))
 		for k, v := range deleteMap {
 			m[k] = gvar.New(v)
 		}
diff --git a/net/ghttp/ghttp_request_method_post.go b/net/ghttp/ghttp_request_method_post.go
index 830c0e578..46006ca4a 100644
--- a/net/ghttp/ghttp_request_method_post.go
+++ b/net/ghttp/ghttp_request_method_post.go
@@ -165,7 +165,7 @@ func (r *Request) GetPostMap(kvMap ...map[string]interface{}) map[string]interfa
 func (r *Request) GetPostMapStrStr(kvMap ...map[string]interface{}) map[string]string {
 	postMap := r.GetPostMap(kvMap...)
 	if len(postMap) > 0 {
-		m := make(map[string]string)
+		m := make(map[string]string, len(postMap))
 		for k, v := range postMap {
 			m[k] = gconv.String(v)
 		}
@@ -177,7 +177,7 @@ func (r *Request) GetPostMapStrStr(kvMap ...map[string]interface{}) map[string]s
 func (r *Request) GetPostMapStrVar(kvMap ...map[string]interface{}) map[string]*gvar.Var {
 	postMap := r.GetPostMap(kvMap...)
 	if len(postMap) > 0 {
-		m := make(map[string]*gvar.Var)
+		m := make(map[string]*gvar.Var, len(postMap))
 		for k, v := range postMap {
 			m[k] = gvar.New(v)
 		}
diff --git a/net/ghttp/ghttp_request_method_put.go b/net/ghttp/ghttp_request_method_put.go
index a13467687..6f6498f94 100644
--- a/net/ghttp/ghttp_request_method_put.go
+++ b/net/ghttp/ghttp_request_method_put.go
@@ -110,7 +110,7 @@ func (r *Request) GetPutInterfaces(key string, def ...interface{}) []interface{}
 }
 
 // 获取指定键名的关联数组，并且给定当指定键名不存在时的默认值。
-// 当不指定键值对关联数组时，默认获取POST方式提交的所有的提交键值对数据。
+// 当不指定键值对关联数组时，默认获取PUT方式提交的所有的提交键值对数据。
 func (r *Request) GetPutMap(kvMap ...map[string]interface{}) map[string]interface{} {
 	r.initPut()
 	if len(kvMap) > 0 {
@@ -131,7 +131,7 @@ func (r *Request) GetPutMap(kvMap ...map[string]interface{}) map[string]interfac
 func (r *Request) GetPutMapStrStr(kvMap ...map[string]interface{}) map[string]string {
 	putMap := r.GetPutMap(kvMap...)
 	if len(putMap) > 0 {
-		m := make(map[string]string)
+		m := make(map[string]string, len(putMap))
 		for k, v := range putMap {
 			m[k] = gconv.String(v)
 		}
@@ -143,7 +143,7 @@ func (r *Request) GetPutMapStrStr(kvMap ...map[string]interface{}) map[string]st
 func (r *Request) GetPutMapStrVar(kvMap ...map[string]interface{}) map[string]*gvar.Var {
 	putMap := r.GetPutMap(kvMap...)
 	if len(putMap) > 0 {
-		m := make(map[string]*gvar.Var)
+		m := make(map[string]*gvar.Var, len(putMap))
 		for k, v := range putMap {
 			m[k] = gvar.New(v)
 		}
diff --git a/net/ghttp/ghttp_request_method_query.go b/net/ghttp/ghttp_request_method_query.go
index e5ad83148..7e20de5f3 100644
--- a/net/ghttp/ghttp_request_method_query.go
+++ b/net/ghttp/ghttp_request_method_query.go
@@ -136,7 +136,7 @@ func (r *Request) GetQueryMap(kvMap ...map[string]interface{}) map[string]interf
 func (r *Request) GetQueryMapStrStr(kvMap ...map[string]interface{}) map[string]string {
 	queryMap := r.GetQueryMap(kvMap...)
 	if len(queryMap) > 0 {
-		m := make(map[string]string)
+		m := make(map[string]string, len(queryMap))
 		for k, v := range queryMap {
 			m[k] = gconv.String(v)
 		}
@@ -148,7 +148,7 @@ func (r *Request) GetQueryMapStrStr(kvMap ...map[string]interface{}) map[string]
 func (r *Request) GetQueryMapStrVar(kvMap ...map[string]interface{}) map[string]*gvar.Var {
 	queryMap := r.GetQueryMap(kvMap...)
 	if len(queryMap) > 0 {
-		m := make(map[string]*gvar.Var)
+		m := make(map[string]*gvar.Var, len(queryMap))
 		for k, v := range queryMap {
 			m[k] = gvar.New(v)
 		}
diff --git a/net/ghttp/ghttp_request_request.go b/net/ghttp/ghttp_request_request.go
index e9b8e5404..76bb017c6 100644
--- a/net/ghttp/ghttp_request_request.go
+++ b/net/ghttp/ghttp_request_request.go
@@ -18,11 +18,11 @@ func (r *Request) initRaw() {
 	if !r.parsedRaw {
 		r.parsedRaw = true
 		if raw := r.GetRawString(); len(raw) > 0 {
-			r.rawVarMap, _ = gstr.Parse(raw)
+			r.rawMap, _ = gstr.Parse(raw)
 		}
 	}
-	if r.rawVarMap == nil {
-		r.rawVarMap = make(map[string]interface{})
+	if r.rawMap == nil {
+		r.rawMap = make(map[string]interface{})
 	}
 }
 
@@ -44,7 +44,7 @@ func (r *Request) GetRequest(key string, def ...interface{}) interface{} {
 		return v
 	}
 	r.initRaw()
-	v = r.rawVarMap[key]
+	v = r.rawMap[key]
 	if v == nil && len(def) > 0 {
 		return def[0]
 	}
@@ -117,20 +117,16 @@ func (r *Request) GetRequestInterfaces(key string, def ...interface{}) []interfa
 
 func (r *Request) GetRequestMap(kvMap ...map[string]interface{}) map[string]interface{} {
 	r.initRaw()
-	m := r.rawVarMap
+	m := make(map[string]interface{})
 	if len(kvMap) > 0 {
-		m = make(map[string]interface{})
 		for k, defValue := range kvMap[0] {
-			if rawValue, ok := r.rawVarMap[k]; ok {
+			if rawValue, ok := r.rawMap[k]; ok {
 				m[k] = rawValue
 			} else {
 				m[k] = defValue
 			}
 		}
 	}
-	if m == nil {
-		m = make(map[string]interface{})
-	}
 	for k, v := range r.GetPostMap(kvMap...) {
 		m[k] = v
 	}
diff --git a/util/gutil/gutil_map.go b/util/gutil/gutil_map.go
new file mode 100644
index 000000000..2dcd162b1
--- /dev/null
+++ b/util/gutil/gutil_map.go
@@ -0,0 +1,17 @@
+// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+// Package gutil provides utility functions.
+package gutil
+
+// CopyMap does memory from map <data> to <copy>.
+func CopyMap(data map[string]interface{}) (copy map[string]interface{}) {
+	copy = make(map[string]interface{}, len(data))
+	for k, v := range data {
+		copy[k] = v
+	}
+	return
+}