release v1.3.4

README.md

@@ -4,7 +4,7 @@
 <br/>
 
 ![Go version](https://img.shields.io/badge/go-v1.16-9cf)
-[![Release](https://img.shields.io/badge/release-1.3.1-green.svg)](https://github.com/duke-git/lancet/releases)
+[![Release](https://img.shields.io/badge/release-1.3.4-green.svg)](https://github.com/duke-git/lancet/releases)
 [![GoDoc](https://godoc.org/github.com//duke-git/lancet?status.svg)](https://pkg.go.dev/github.com/duke-git/lancet)
 [![Go Report Card](https://goreportcard.com/badge/github.com/duke-git/lancet)](https://goreportcard.com/report/github.com/duke-git/lancet)
 [![test](https://github.com/duke-git/lancet/actions/workflows/codecov.yml/badge.svg?branch=main&event=push)](https://github.com/duke-git/lancet/actions/workflows/codecov.yml)
@@ -62,12 +62,15 @@ func main() {
 ```
 
 ## API Documentation
+
 ### 1. Convertor package contains some functions for data convertion.
 
 ```go
 import "github.com/duke-git/lancet/convertor"
 ```
+
 #### Function list:
+
 -   [ColorHexToRGB](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ColorHexToRGB)
 -   [ColorRGBToHex](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ColorRGBToHex)
 -   [ToBool](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToBool)
@@ -88,6 +91,7 @@ import "github.com/duke-git/lancet/cryptor"
 ```
 
 #### Function list:
+
 -   [AesEcbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesEcbEncrypt)
 -   [AesEcbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesEcbDecrypt)
 -   [AesCbcEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor.md#AesCbcEncrypt)
@@ -123,11 +127,12 @@ import "github.com/duke-git/lancet/cryptor"
 
 ### 3. Datetime package supports date and time format and compare.
 
-
 ```go
 import "github.com/duke-git/lancet/datetime"
 ```
+
 #### Function list:
+
 -   [AddDay](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#AddDay)
 -   [AddHour](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#AddHour)
 -   [AddMinute](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#AddMinute)
@@ -188,7 +193,9 @@ import "github.com/duke-git/lancet/fileutil"
 ```go
 import "github.com/duke-git/lancet/formatter"
 ```
+
 #### Function list:
+
 -   [Comma](https://github.com/duke-git/lancet/blob/v1/docs/formatter.md#Comma)
 
 ### Function package can control the flow of function execution and support part of functional programming
@@ -198,6 +205,7 @@ import "github.com/duke-git/lancet/function"
 ```
 
 #### Function list:
+
 -   [After](https://github.com/duke-git/lancet/blob/v1/docs/function.md#After)
 -   [Before](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Before)
 -   [Curry](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Curry)
@@ -206,7 +214,6 @@ import "github.com/duke-git/lancet/function"
 -   [Delay](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Delay)
 -   [Watcher](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Watcher)
 
-
 ### 6. Mathutil package implements some functions for math calculation.
 
 ```go
@@ -214,6 +221,7 @@ import "github.com/duke-git/lancet/mathutil"
 ```
 
 #### Function list:
+
 -   [Exponent](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#Exponent)
 -   [Fibonacci](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#Fibonacci)
 -   [Factorial](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#Factorial)
@@ -222,7 +230,6 @@ import "github.com/duke-git/lancet/mathutil"
 -   [RoundToString](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#RoundToString)
 -   [TruncRound](https://github.com/duke-git/lancet/blob/v1/docs/mathutil.md#TruncRound)
 
-
 ### 7. Netutil package contains functions to get net information and send http request.
 
 ```go
@@ -230,6 +237,7 @@ import "github.com/duke-git/lancet/netutil"
 ```
 
 #### Function list:
+
 -   [ConvertMapToQueryString](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#ConvertMapToQueryString)
 -   [EncodeUrl](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#EncodeUrl)
 -   [GetInternalIp](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#GetInternalIp)
@@ -246,7 +254,6 @@ import "github.com/duke-git/lancet/netutil"
 -   [HttpPatch](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#HttpPatch)
 -   [ParseHttpResponse](https://github.com/duke-git/lancet/blob/v1/docs/netutil.md#ParseHttpResponse)
 
-
 ### 8. Random package implements some basic functions to generate random int and string.
 
 ```go
@@ -254,9 +261,14 @@ import "github.com/duke-git/lancet/random"
 ```
 
 #### Function list:
+
 -   [RandBytes](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandBytes)
 -   [RandInt](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandInt)
 -   [RandString](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandString)
+-   [RandUpper](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandUpper)
+-   [RandLower](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandLower)
+-   [RandNumeral](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandNumeral)
+-   [RandNumeralOrLetter](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandNumeralOrLetter)
 -   [UUIdV4](https://github.com/duke-git/lancet/blob/v1/docs/random.md#UUIdV4)
 
 ### 9. Retry package is for executing a function repeatedly until it was successful or canceled by the context.
@@ -266,6 +278,7 @@ import "github.com/duke-git/lancet/retry"
 ```
 
 #### Function list:
+
 -   [Context](https://github.com/duke-git/lancet/blob/v1/docs/retry.md#Context)
 -   [Retry](https://github.com/duke-git/lancet/blob/v1/docs/retry.md#Retry)
 -   [RetryFunc](https://github.com/duke-git/lancet/blob/v1/docs/retry.md#RetryFunc)
@@ -279,6 +292,7 @@ import "github.com/duke-git/lancet/slice"
 ```
 
 #### Function list:
+
 -   [AppendIfAbsent](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#AppendIfAbsent)
 -   [Contain](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#Contain)
 -   [ContainSubSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice.md#ContainSubSlice)
@@ -353,6 +367,7 @@ import "github.com/duke-git/lancet/system"
 ```
 
 #### Function list:
+
 -   [IsWindows](https://github.com/duke-git/lancet/blob/v1/docs/system.md#IsWindows)
 -   [IsLinux](https://github.com/duke-git/lancet/blob/v1/docs/system.md#IsLinux)
 -   [IsMac](https://github.com/duke-git/lancet/blob/v1/docs/system.md#IsMac)
@@ -368,6 +383,7 @@ import "github.com/duke-git/lancet/system"
 ```go
 import "github.com/duke-git/lancet/validator"
 ```
+
 #### Function list:
 
 -   [ContainChinese](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#ContainChinese)
@@ -398,7 +414,6 @@ import "github.com/duke-git/lancet/validator"
 -   [IsWeakPassword](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsWeakPassword)
 -   [IsZeroValue](https://github.com/duke-git/lancet/blob/v1/docs/validator.md#IsZeroValue)
 
-
 ## How to Contribute
 
 I really appreciate any code commits which make lancet lib powerful. Please follow the rules below to create your pull request.

README_zh-CN.md

@@ -4,7 +4,7 @@
 <br/>
 
 ![Go version](https://img.shields.io/badge/go-v1.16-9cf)
-[![Release](https://img.shields.io/badge/release-1.3.1-green.svg)](https://github.com/duke-git/lancet/releases)
+[![Release](https://img.shields.io/badge/release-1.3.4-green.svg)](https://github.com/duke-git/lancet/releases)
 [![GoDoc](https://godoc.org/github.com//duke-git/lancet?status.svg)](https://pkg.go.dev/github.com/duke-git/lancet)
 [![Go Report Card](https://goreportcard.com/badge/github.com/duke-git/lancet)](https://goreportcard.com/report/github.com/duke-git/lancet)
 [![test](https://github.com/duke-git/lancet/actions/workflows/codecov.yml/badge.svg?branch=main&event=push)](https://github.com/duke-git/lancet/actions/workflows/codecov.yml)
@@ -20,7 +20,6 @@
 
 简体中文 | [English](./README.md)
 
-
 ## 特性
 
 -   👏 全面、高效、可复用
@@ -62,12 +61,15 @@ func main() {
 ```
 
 ## API 文档
+
 ### 1. convertor 转换器包支持一些常见的数据类型转换。
 
 ```go
 import "github.com/duke-git/lancet/convertor"
 ```
+
 #### 函数列表:
+
 -   [ColorHexToRGB](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ColorHexToRGB)
 -   [ColorRGBToHex](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ColorRGBToHex)
 -   [ToBool](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToBool)
@@ -88,6 +90,7 @@ import "github.com/duke-git/lancet/cryptor"
 ```
 
 #### 函数列表:
+
 -   [AesEcbEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesEcbEncrypt)
 -   [AesEcbDecrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesEcbDecrypt)
 -   [AesCbcEncrypt](https://github.com/duke-git/lancet/blob/v1/docs/cryptor_zh-CN.md#AesCbcEncrypt)
@@ -123,11 +126,12 @@ import "github.com/duke-git/lancet/cryptor"
 
 ### 3. datetime 日期时间处理包，格式化日期，比较日期。
 
-
 ```go
 import "github.com/duke-git/lancet/datetime"
 ```
+
 #### 函数列表:
+
 -   [AddDay](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#AddDay)
 -   [AddHour](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#AddHour)
 -   [AddMinute](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#AddMinute)
@@ -158,6 +162,7 @@ import "github.com/duke-git/lancet/datetime"
 -   [ToFormat](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#ToFormat)
 -   [ToFormatForTpl](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#ToFormatForTpl)
 -   [ToIso8601](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#ToIso8601)
+
 ### 4. fileutil 包支持文件基本操作。
 
 ```go
@@ -187,9 +192,10 @@ import "github.com/duke-git/lancet/fileutil"
 ```go
 import "github.com/duke-git/lancet/formatter"
 ```
-#### 函数列表:
-- [Comma](https://github.com/duke-git/lancet/blob/v1/docs/formatter_zh-CN.md#Comma)
 
+#### 函数列表:
+
+-   [Comma](https://github.com/duke-git/lancet/blob/v1/docs/formatter_zh-CN.md#Comma)
 
 ### function 函数包控制函数执行流程，包含部分函数式编程。
 
@@ -198,6 +204,7 @@ import "github.com/duke-git/lancet/function"
 ```
 
 #### 函数列表:
+
 -   [After](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#After)
 -   [Before](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Before)
 -   [Curry](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Curry)
@@ -213,6 +220,7 @@ import "github.com/duke-git/lancet/mathutil"
 ```
 
 #### Function list:
+
 -   [Exponent](https://github.com/duke-git/lancet/blob/v1/docs/mathutil_zh-CN.md#Exponent)
 -   [Fibonacci](https://github.com/duke-git/lancet/blob/v1/docs/mathutil_zh-CN.md#Fibonacci)
 -   [Factorial](https://github.com/duke-git/lancet/blob/v1/docs/mathutil_zh-CN.md#Factorial)
@@ -228,6 +236,7 @@ import "github.com/duke-git/lancet/netutil"
 ```
 
 #### 函数列表:
+
 -   [ConvertMapToQueryString](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#ConvertMapToQueryString)
 -   [EncodeUrl](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#EncodeUrl)
 -   [GetInternalIp](https://github.com/duke-git/lancet/blob/v1/docs/netutil_zh-CN.md#GetInternalIp)
@@ -251,10 +260,16 @@ import "github.com/duke-git/lancet/random"
 ```
 
 #### 函数列表:
+
 -   [RandBytes](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandBytes)
 -   [RandInt](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandInt)
 -   [RandString](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandString)
+-   [RandUpper](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandUpper)
+-   [RandLower](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandLower)
+-   [RandNumeral](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandNumeral)
+-   [RandNumeralOrLetter](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandNumeralOrLetter)
 -   [UUIdV4](https://github.com/duke-git/lancet/blob/v1/docs/random.md#UUIdV4)
+
 ### 9. retry 重试执行函数直到函数运行成功或被 context cancel。
 
 ```go
@@ -262,13 +277,13 @@ import "github.com/duke-git/lancet/retry"
 ```
 
 #### 函数列表:
+
 -   [Context](https://github.com/duke-git/lancet/blob/v1/docs/retry_zh-CN.md#Context)
 -   [Retry](https://github.com/duke-git/lancet/blob/v1/docs/retry_zh-CN.md#Retry)
 -   [RetryFunc](https://github.com/duke-git/lancet/blob/v1/docs/retry_zh-CN.md#RetryFunc)
 -   [RetryDuration](https://github.com/duke-git/lancet/blob/v1/docs/retry_zh-CN.md#RetryDuration)
 -   [RetryTimes](https://github.com/duke-git/lancet/blob/v1/docs/retry_zh-CN.md#RetryTimes)
 
-
 ### 10. slice 包包含操作切片的方法集合。
 
 ```go
@@ -276,6 +291,7 @@ import "github.com/duke-git/lancet/slice"
 ```
 
 #### 函数列表:
+
 -   [AppendIfAbsent](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#AppendIfAbsent)
 -   [Contain](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Contain)
 -   [ContainSubSlice](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#ContainSubSlice)
@@ -317,7 +333,6 @@ import "github.com/duke-git/lancet/slice"
 -   [UpdateByIndex](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#UpdateByIndex)
 -   [Without](https://github.com/duke-git/lancet/blob/v1/docs/slice_zh-CN.md#Without)
 
-
 ### 12. strutil 包含处理字符串的相关函数。
 
 ```go
@@ -344,7 +359,6 @@ import "github.com/duke-git/lancet/strutil"
 -   [Wrap](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#Wrap)
 -   [Unwrap](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#Unwrap)
 
-
 ### 13. system 包含 os, runtime, shell command 相关函数。
 
 ```go
@@ -352,6 +366,7 @@ import "github.com/duke-git/lancet/system"
 ```
 
 #### 函数列表:
+
 -   [IsWindows](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#IsWindows)
 -   [IsLinux](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#IsLinux)
 -   [IsMac](https://github.com/duke-git/lancet/blob/v1/docs/system_zh-CN.md#IsMac)
@@ -367,6 +382,7 @@ import "github.com/duke-git/lancet/system"
 ```go
 import "github.com/duke-git/lancet/validator"
 ```
+
 #### 函数列表:
 
 -   [ContainChinese](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#ContainChinese)
@@ -397,7 +413,6 @@ import "github.com/duke-git/lancet/validator"
 -   [IsWeakPassword](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsWeakPassword)
 -   [IsZeroValue](https://github.com/duke-git/lancet/blob/v1/docs/validator_zh-CN.md#IsZeroValue)
 
-
 ## 如何贡献代码
 
 非常感激任何的代码提交以使 lancet 的功能越来越强大。创建 pull request 时请遵守以下规则。

docs/netutil.md

@@ -7,6 +7,8 @@ Package netutil contains functions to get net information and send http request.
 
 [https://github.com/duke-git/lancet/blob/v1/netutil/net.go](https://github.com/duke-git/lancet/blob/v1/netutil/net.go)
 
+[https://github.com/duke-git/lancet/blob/v1/netutil/http_client.go](https://github.com/duke-git/lancet/blob/v1/netutil/http_client.go)
+
 [https://github.com/duke-git/lancet/blob/v1/netutil/http.go](https://github.com/duke-git/lancet/blob/v1/netutil/http.go)
 
 <div STYLE="page-break-after: always;"></div>
@@ -29,13 +31,18 @@ import (
 - [GetPublicIpInfo](#GetPublicIpInfo)
 - [GetRequestPublicIp](#GetRequestPublicIp)
 - [IsPublicIP](#IsPublicIP)
-
 - [IsInternalIP](#IsInternalIP)
-- [HttpGet](#HttpGet)
+- [HttpRequest](#HttpRequest)
-- [HttpDelete](#HttpDelete)
+- [HttpClient](#HttpClient)
-- [HttpPost](#HttpPost)
+- [SendRequest](#SendRequest)
-- [HttpPut](#HttpPut)
+- [DecodeResponse](#DecodeResponse)
-- [HttpPatch](#HttpPatch)
+- [StructToUrlValues](#StructToUrlValues)
+
+- [HttpGet<sup>Deprecated</sup>](#HttpGet)
+- [HttpDelete<sup>Deprecated</sup>](#HttpDelete)
+- [HttpPost<sup>Deprecated</sup>](#HttpPost)
+- [HttpPut<sup>Deprecated</sup>](#HttpPut)
+- [HttpPatch<sup>Deprecated</sup>](#HttpPatch)
 - [ParseHttpResponse](#ParseHttpResponse)
 
 <div STYLE="page-break-after: always;"></div>
@@ -319,7 +326,7 @@ package main
 import (
     "fmt"
 	"net"
-    "github.com/duke-git/lancet/v2/netutil"
+    "github.com/duke-git/lancet/netutil"
 )
 
 func main() {
@@ -333,8 +340,231 @@ func main() {
 
 
 
+### <span id="HttpRequest">HttpRequest</span>
+<p>HttpRequest is a struct used to abstract HTTP request entity.</p>
 
-### <span id="HttpGet">HttpGet</span>
+<b>Signature:</b>
+
+```go
+type HttpRequest struct {
+	RawURL      string
+	Method      string
+	Headers     http.Header
+	QueryParams url.Values
+	FormData    url.Values
+	Body        []byte
+}
+```
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+	"net"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	header := http.Header{}
+	header.Add("Content-Type", "multipart/form-data")
+
+	postData := url.Values{}
+	postData.Add("userId", "1")
+	postData.Add("title", "testItem")
+
+	request := &netutil.HttpRequest{
+		RawURL:   "https://jsonplaceholder.typicode.com/todos",
+		Method:   "POST",
+		Headers:  header,
+		FormData: postData,
+	}
+}
+```
+
+
+### <span id="HttpClient">HttpClient</span>
+<p>HttpClient is a struct used to send HTTP request. It can be instanced with some configurations or none config.</p>
+
+<b>Signature:</b>
+
+```go
+type HttpClient struct {
+	*http.Client
+	TLS     *tls.Config
+	Request *http.Request
+	Config  HttpClientConfig
+}
+
+type HttpClientConfig struct {
+	SSLEnabled       bool
+	TLSConfig        *tls.Config
+	Compressed       bool
+	HandshakeTimeout time.Duration
+	ResponseTimeout  time.Duration
+	Verbose          bool
+}
+
+func NewHttpClient() *HttpClient
+
+func NewHttpClientWithConfig(config *HttpClientConfig) *HttpClient
+
+```
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+	"net"
+	"time"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	httpClientCfg := netutil.HttpClientConfig{
+		SSLEnabled: true,
+		HandshakeTimeout:10 * time.Second
+	}
+	httpClient := netutil.NewHttpClientWithConfig(&httpClientCfg)
+}
+```
+
+
+
+### <span id="SendRequest">SendRequest</span>
+<p>Use HttpClient to send HTTP request.</p>
+
+<b>Signature:</b>
+
+```go
+func (client *HttpClient) SendRequest(request *HttpRequest) (*http.Response, error)
+```
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+	"net"
+	"time"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	request := &netutil.HttpRequest{
+		RawURL: "https://jsonplaceholder.typicode.com/todos/1",
+		Method: "GET",
+	}
+
+	httpClient := netutil.NewHttpClient()
+	resp, err := httpClient.SendRequest(request)
+	if err != nil || resp.StatusCode != 200 {
+		log.Fatal(err)
+	}
+
+	type Todo struct {
+		UserId    int    `json:"userId"`
+		Id        int    `json:"id"`
+		Title     string `json:"title"`
+		Completed bool   `json:"completed"`
+	}
+
+	var todo Todo
+	httpClient.DecodeResponse(resp, &todo)
+
+	fmt.Println(todo.Id) //1
+}
+```
+
+
+
+### <span id="DecodeResponse">DecodeResponse</span>
+<p>Decode http response into target object.</p>
+
+<b>Signature:</b>
+
+```go
+func (client *HttpClient) DecodeResponse(resp *http.Response, target interface{}) error
+```
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+	"net"
+	"time"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	request := &netutil.HttpRequest{
+		RawURL: "https://jsonplaceholder.typicode.com/todos/1",
+		Method: "GET",
+	}
+
+	httpClient := netutil.NewHttpClient()
+	resp, err := httpClient.SendRequest(request)
+	if err != nil || resp.StatusCode != 200 {
+		log.Fatal(err)
+	}
+
+	type Todo struct {
+		UserId    int    `json:"userId"`
+		Id        int    `json:"id"`
+		Title     string `json:"title"`
+		Completed bool   `json:"completed"`
+	}
+
+	var todo Todo
+	httpClient.DecodeResponse(resp, &todo)
+
+	fmt.Println(todo.Id) //1
+}
+```
+
+
+### <span id="StructToUrlValues">StructToUrlValues</span>
+<p>Convert struct to url values, only convert the field which is exported and has `json` tag.</p>
+
+<b>Signature:</b>
+
+```go
+func StructToUrlValues(targetStruct interface{}) url.Values
+```
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	type TodoQuery struct {
+		Id     int `json:"id"`
+		UserId int `json:"userId"`
+	}
+	todoQuery := TodoQuery{
+		Id:     1,
+		UserId: 2,
+	}
+	todoValues := netutil.StructToUrlValues(todoQuery)
+
+	fmt.Println(todoValues.Get("id")) //1
+	fmt.Println(todoValues.Get("userId")) //2
+}
+```
+
+
+### <span id="HttpGet">HttpGet (Deprecated: use SendRequest for replacement)</span>
 <p>Send http get request.</p>
 
 <b>Signature:</b>
@@ -376,7 +606,7 @@ func main() {
 
 
 
-### <span id="HttpPost">HttpPost</span>
+### <span id="HttpPost">HttpPost (Deprecated: use SendRequest for replacement)</span>
 <p>Send http post request.</p>
 
 <b>Signature:</b>
@@ -425,7 +655,7 @@ func main() {
 
 
 
-### <span id="HttpPut">HttpPut</span>
+### <span id="HttpPut">HttpPut (Deprecated: use SendRequest for replacement)</span>
 <p>Send http put request.</p>
 
 <b>Signature:</b>
@@ -475,7 +705,7 @@ func main() {
 
 
 
-### <span id="HttpDelete">HttpDelete</span>
+### <span id="HttpDelete">HttpDelete (Deprecated: use SendRequest for replacement)</span>
 <p>Send http delete request.</p>
 
 <b>Signature:</b>
@@ -514,7 +744,7 @@ func main() {
 
 
 
-### <span id="HttpPatch">HttpPatch</span>
+### <span id="HttpPatch">HttpPatch (Deprecated: use SendRequest for replacement)</span>
 <p>Send http patch request.</p>
 
 <b>Signature:</b>

docs/netutil_zh-CN.md

@@ -7,6 +7,7 @@ netutil网络包支持获取ip地址，发送http请求。
 
 [https://github.com/duke-git/lancet/blob/v1/netutil/net.go](https://github.com/duke-git/lancet/blob/v1/netutil/net.go)
 
+[https://github.com/duke-git/lancet/blob/v1/netutil/http_client.go](https://github.com/duke-git/lancet/blob/v1/netutil/http_client.go)
 [https://github.com/duke-git/lancet/blob/v1/netutil/http.go](https://github.com/duke-git/lancet/blob/v1/netutil/http.go)
 
 <div STYLE="page-break-after: always;"></div>
@@ -28,14 +29,19 @@ import (
 - [GetMacAddrs](#GetMacAddrs)
 - [GetPublicIpInfo](#GetPublicIpInfo)
 - [GetRequestPublicIp](#GetRequestPublicIp)
-
 - [IsPublicIP](#IsPublicIP)
 - [IsInternalIP](#IsInternalIP)
-- [HttpGet](#HttpGet)
+- [HttpRequest](#HttpRequest)
-- [HttpDelete](#HttpDelete)
+- [HttpClient](#HttpClient)
-- [HttpPost](#HttpPost)
+- [SendRequest](#SendRequest)
-- [HttpPut](#HttpPut)
+- [DecodeResponse](#DecodeResponse)
-- [HttpPatch](#HttpPatch)
+- [StructToUrlValues](#StructToUrlValues)
+
+- [HttpGet<sup>Deprecated</sup>](#HttpGet)
+- [HttpDelete<sup>Deprecated</sup>](#HttpDelete)
+- [HttpPost<sup>Deprecated</sup>](#HttpPost)
+- [HttpPut<sup>Deprecated</sup>](#HttpPut)
+- [HttpPatch<sup>Deprecated</sup>](#HttpPatch)
 - [ParseHttpResponse](#ParseHttpResponse)
 
 <div STYLE="page-break-after: always;"></div>
@@ -333,8 +339,232 @@ func main() {
 ```
 
 
+### <span id="HttpRequest">HttpRequest</span>
+<p>HttpRequest用于抽象HTTP请求实体的结构</p>
 
-### <span id="HttpGet">HttpGet</span>
+<b>函数签名:</b>
+
+```go
+type HttpRequest struct {
+	RawURL      string
+	Method      string
+	Headers     http.Header
+	QueryParams url.Values
+	FormData    url.Values
+	Body        []byte
+}
+```
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+	"net"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	header := http.Header{}
+	header.Add("Content-Type", "multipart/form-data")
+
+	postData := url.Values{}
+	postData.Add("userId", "1")
+	postData.Add("title", "testItem")
+
+	request := &netutil.HttpRequest{
+		RawURL:   "https://jsonplaceholder.typicode.com/todos",
+		Method:   "POST",
+		Headers:  header,
+		FormData: postData,
+	}
+}
+```
+
+
+### <span id="HttpClient">HttpClient</span>
+<p>HttpClient是用于发送HTTP请求的结构体。它可以用一些配置参数或无配置实例化.</p>
+
+<b>函数签名:</b>
+
+```go
+type HttpClient struct {
+	*http.Client
+	TLS     *tls.Config
+	Request *http.Request
+	Config  HttpClientConfig
+}
+
+type HttpClientConfig struct {
+	SSLEnabled       bool
+	TLSConfig        *tls.Config
+	Compressed       bool
+	HandshakeTimeout time.Duration
+	ResponseTimeout  time.Duration
+	Verbose          bool
+}
+
+func NewHttpClient() *HttpClient
+
+func NewHttpClientWithConfig(config *HttpClientConfig) *HttpClient
+
+```
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+	"net"
+	"time"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	httpClientCfg := netutil.HttpClientConfig{
+		SSLEnabled: true,
+		HandshakeTimeout:10 * time.Second
+	}
+	httpClient := netutil.NewHttpClientWithConfig(&httpClientCfg)
+}
+```
+
+
+
+### <span id="SendRequest">SendRequest</span>
+<p>HttpClient发送http请求</p>
+
+<b>函数签名:</b>
+
+```go
+func (client *HttpClient) SendRequest(request *HttpRequest) (*http.Response, error)
+```
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+	"net"
+	"time"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	request := &netutil.HttpRequest{
+		RawURL: "https://jsonplaceholder.typicode.com/todos/1",
+		Method: "GET",
+	}
+
+	httpClient := netutil.NewHttpClient()
+	resp, err := httpClient.SendRequest(request)
+	if err != nil || resp.StatusCode != 200 {
+		log.Fatal(err)
+	}
+
+	type Todo struct {
+		UserId    int    `json:"userId"`
+		Id        int    `json:"id"`
+		Title     string `json:"title"`
+		Completed bool   `json:"completed"`
+	}
+
+	var todo Todo
+	httpClient.DecodeResponse(resp, &todo)
+
+	fmt.Println(todo.Id) //1
+}
+```
+
+
+
+### <span id="DecodeResponse">DecodeResponse</span>
+<p>解析http响应体到目标结构体</p>
+
+<b>函数签名:</b>
+
+```go
+func (client *HttpClient) DecodeResponse(resp *http.Response, target interface{}) error
+```
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+	"net"
+	"time"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	request := &netutil.HttpRequest{
+		RawURL: "https://jsonplaceholder.typicode.com/todos/1",
+		Method: "GET",
+	}
+
+	httpClient := netutil.NewHttpClient()
+	resp, err := httpClient.SendRequest(request)
+	if err != nil || resp.StatusCode != 200 {
+		log.Fatal(err)
+	}
+
+	type Todo struct {
+		UserId    int    `json:"userId"`
+		Id        int    `json:"id"`
+		Title     string `json:"title"`
+		Completed bool   `json:"completed"`
+	}
+
+	var todo Todo
+	httpClient.DecodeResponse(resp, &todo)
+
+	fmt.Println(todo.Id) //1
+}
+```
+
+
+### <span id="StructToUrlValues">StructToUrlValues</span>
+<p>将结构体转为url values, 仅转化结构体导出字段并且包含`json` tag.</p>
+
+<b>函数签名:</b>
+
+```go
+func StructToUrlValues(targetStruct interface{}) url.Values
+```
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	type TodoQuery struct {
+		Id     int `json:"id"`
+		UserId int `json:"userId"`
+	}
+	todoQuery := TodoQuery{
+		Id:     1,
+		UserId: 2,
+	}
+	todoValues := netutil.StructToUrlValues(todoQuery)
+
+	fmt.Println(todoValues.Get("id")) //1
+	fmt.Println(todoValues.Get("userId")) //2
+}
+```
+
+
+
+### <span id="HttpGet">HttpGet (Deprecated: use SendRequest for replacement)</span>
 <p>发送http get请求</p>
 
 <b>函数签名:</b>
@@ -376,7 +606,7 @@ func main() {
 
 
 
-### <span id="HttpPost">HttpPost</span>
+### <span id="HttpPost">HttpPost (Deprecated: use SendRequest for replacement)</span>
 <p>发送http post请求</p>
 
 <b>函数签名:</b>
@@ -425,7 +655,7 @@ func main() {
 
 
 
-### <span id="HttpPut">HttpPut</span>
+### <span id="HttpPut">HttpPut (Deprecated: use SendRequest for replacement)</span>
 <p>发送http put请求</p>
 
 <b>函数签名:</b>
@@ -475,7 +705,7 @@ func main() {
 
 
 
-### <span id="HttpDelete">HttpDelete</span>
+### <span id="HttpDelete">HttpDelete (Deprecated: use SendRequest for replacement)</span>
 <p>发送http delete请求</p>
 
 <b>函数签名:</b>
@@ -514,7 +744,7 @@ func main() {
 
 
 
-### <span id="HttpPatch">HttpPatch</span>
+### <span id="HttpPatch">HttpPatch (Deprecated: use SendRequest for replacement)</span>
 <p>发送http patch请求</p>
 
 <b>函数签名:</b>

docs/random.md

@@ -1,4 +1,5 @@
 # Random
+
 Package random implements some basic functions to generate random int and string.
 
 <div STYLE="page-break-after: always;"></div>
@@ -7,10 +8,10 @@ Package random implements some basic functions to generate random int and string
 
 [https://github.com/duke-git/lancet/blob/v1/random/random.go](https://github.com/duke-git/lancet/blob/v1/random/random.go)
 
-
 <div STYLE="page-break-after: always;"></div>
 
 ## Usage:
+
 ```go
 import (
     "github.com/duke-git/lancet/random"
@@ -20,17 +21,23 @@ import (
 <div STYLE="page-break-after: always;"></div>
 
 ## Index
+
 -   [RandBytes](#RandBytes)
 -   [RandInt](#RandInt)
 -   [RandString](#RandString)
+-   [RandUpper](#RandUpper)
+
+-   [RandLower](#RandLower)
+-   [RandNumeral](#RandNumeral)
+-   [RandNumeralOrLetter](#RandNumeralOrLetter)
 -   [UUIdV4](#UUIdV4)
 
 <div STYLE="page-break-after: always;"></div>
 
 ## Documentation
 
-
 ### <span id="RandBytes">RandBytes</span>
+
 <p>Generate random byte slice.</p>
 
 <b>Signature:</b>
@@ -38,6 +45,7 @@ import (
 ```go
 func RandBytes(length int) []byte
 ```
+
 <b>Example:</b>
 
 ```go
@@ -54,8 +62,8 @@ func main() {
 }
 ```
 
-
 ### <span id="RandInt">RandInt</span>
+
 <p>Generate random int between min and max, may contain min, not max.</p>
 
 <b>Signature:</b>
@@ -63,6 +71,7 @@ func main() {
 ```go
 func RandInt(min, max int) int
 ```
+
 <b>Example:</b>
 
 ```go
@@ -79,16 +88,16 @@ func main() {
 }
 ```
 
+### <span id="RandString">RandString</span>
 
-
+<p>Generate random given length string. only contains letter (a-zA-Z)</p>
-### <span id="RandString">RandInt</span>
-<p>Generate random given length string.</p>
 
 <b>Signature:</b>
 
 ```go
 func RandString(length int) string
 ```
+
 <b>Example:</b>
 
 ```go
@@ -101,14 +110,116 @@ import (
 
 func main() {
 	randStr := random.RandString(6)
-	fmt.Println(randStr)
+	fmt.Println(randStr) //pGWsze
 }
 ```
 
+### <span id="RandUpper">RandUpper</span>
 
+<p>Generate a random upper case string</p>
 
+<b>Signature:</b>
+
+```go
+func RandUpper(length int) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/random"
+)
+
+func main() {
+	randStr := random.RandString(6)
+	fmt.Println(randStr) //PACWGF
+}
+```
+
+### <span id="RandLower">RandLower</span>
+
+<p>Generate a random lower case string</p>
+
+<b>Signature:</b>
+
+```go
+func RandLower(length int) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/random"
+)
+
+func main() {
+	randStr := random.RandLower(6)
+	fmt.Println(randStr) //siqbew
+}
+```
+
+### <span id="RandNumeral">RandNumeral</span>
+
+<p>Generate a random numeral string</p>
+
+<b>Signature:</b>
+
+```go
+func RandNumeral(length int) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/random"
+)
+
+func main() {
+	randStr := random.RandNumeral(6)
+	fmt.Println(randStr) //035172
+}
+```
+
+### <span id="RandNumeralOrLetter">RandNumeralOrLetter</span>
+
+<p>generate a random numeral or letter string</p>
+
+<b>Signature:</b>
+
+```go
+func RandNumeralOrLetter(length int) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/random"
+)
+
+func main() {
+	randStr := random.RandNumeralOrLetter(6)
+	fmt.Println(randStr) //0aW7cQ
+}
+```
 
 ### <span id="UUIdV4">UUIdV4</span>
+
 <p>Generate a random UUID of version 4 according to RFC 4122.</p>
 
 <b>Signature:</b>
@@ -116,6 +227,7 @@ func main() {
 ```go
 func UUIdV4() (string, error)
 ```
+
 <b>Example:</b>
 
 ```go
@@ -134,5 +246,3 @@ func main() {
 	fmt.Println(uuid)
 }
 ```
-
-

docs/random_zh-CN.md

@@ -1,4 +1,5 @@
 # Random
+
 random 随机数生成器包，可以生成随机[]bytes, int, string。
 
 <div STYLE="page-break-after: always;"></div>
@@ -7,10 +8,10 @@ random随机数生成器包，可以生成随机[]bytes, int, string。
 
 [https://github.com/duke-git/lancet/blob/v1/random/random.go](https://github.com/duke-git/lancet/blob/v1/random/random.go)
 
-
 <div STYLE="page-break-after: always;"></div>
 
 ## 用法:
+
 ```go
 import (
     "github.com/duke-git/lancet/random"
@@ -20,18 +21,23 @@ import (
 <div STYLE="page-break-after: always;"></div>
 
 ## 目录
+
 -   [RandBytes](#RandBytes)
 -   [RandInt](#RandInt)
 -   [RandString](#RandString)
-- [UUIdV4](#UUIdV4)
+-   [RandUpper](#RandUpper)
 
+-   [RandLower](#RandLower)
+-   [RandNumeral](#RandNumeral)
+-   [RandNumeralOrLetter](#RandNumeralOrLetter)
+-   [UUIdV4](#UUIdV4)
 
 <div STYLE="page-break-after: always;"></div>
 
 ## 文档
 
-
 ### <span id="RandBytes">RandBytes</span>
+
 <p>生成随机字节切片</p>
 
 <b>函数签名:</b>
@@ -39,6 +45,7 @@ import (
 ```go
 func RandBytes(length int) []byte
 ```
+
 <b>例子:</b>
 
 ```go
@@ -55,8 +62,8 @@ func main() {
 }
 ```
 
-
 ### <span id="RandInt">RandInt</span>
+
 <p>生成随机int, 范围[min, max)</p>
 
 <b>函数签名:</b>
@@ -64,6 +71,7 @@ func main() {
 ```go
 func RandInt(min, max int) int
 ```
+
 <b>例子:</b>
 
 ```go
@@ -80,16 +88,16 @@ func main() {
 }
 ```
 
+### <span id="RandString">RandString</span>
 
-
+<p>生成给定长度的随机字符串，只包含字母(a-zA-Z)</p>
-### <span id="RandString">RandInt</span>
-<p>生成随机给定长度的随机字符串</p>
 
 <b>函数签名:</b>
 
 ```go
 func RandString(length int) string
 ```
+
 <b>例子:</b>
 
 ```go
@@ -102,13 +110,116 @@ import (
 
 func main() {
 	randStr := random.RandString(6)
-	fmt.Println(randStr)
+	fmt.Println(randStr) //pGWsze
 }
 ```
 
+### <span id="RandUpper">RandUpper</span>
 
+<p>生成给定长度的随机大写字母字符串</p>
+
+<b>函数签名:</b>
+
+```go
+func RandUpper(length int) string
+```
+
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/random"
+)
+
+func main() {
+	randStr := random.RandString(6)
+	fmt.Println(randStr) //PACWGF
+}
+```
+
+### <span id="RandLower">RandLower</span>
+
+<p>生成给定长度的随机小写字母字符串</p>
+
+<b>函数签名:</b>
+
+```go
+func RandLower(length int) string
+```
+
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/random"
+)
+
+func main() {
+	randStr := random.RandLower(6)
+	fmt.Println(randStr) //siqbew
+}
+```
+
+### <span id="RandNumeral">RandNumeral</span>
+
+<p>生成给定长度的随机数字字符串</p>
+
+<b>函数签名:</b>
+
+```go
+func RandNumeral(length int) string
+```
+
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/random"
+)
+
+func main() {
+	randStr := random.RandNumeral(6)
+	fmt.Println(randStr) //035172
+}
+```
+
+### <span id="RandNumeralOrLetter">RandNumeralOrLetter</span>
+
+<p>生成给定长度的随机字符串（数字+字母)</p>
+
+<b>函数签名:</b>
+
+```go
+func RandNumeralOrLetter(length int) string
+```
+
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/random"
+)
+
+func main() {
+	randStr := random.RandNumeralOrLetter(6)
+	fmt.Println(randStr) //0aW7cQ
+}
+```
 
 ### <span id="UUIdV4">UUIdV4</span>
+
 <p>生成UUID v4字符串</p>
 
 <b>函数签名:</b>
@@ -116,6 +227,7 @@ func main() {
 ```go
 func UUIdV4() (string, error)
 ```
+
 <b>例子:</b>
 
 ```go
@@ -134,5 +246,3 @@ func main() {
 	fmt.Println(uuid)
 }
 ```
-
-

fileutil/file.go

@@ -8,6 +8,7 @@ import (
 	"archive/zip"
 	"bufio"
 	"errors"
+	"fmt"
 	"io"
 	"io/fs"
 	"io/ioutil"
@@ -220,7 +221,11 @@ func UnZip(zipFile string, destPath string) error {
 	defer zipReader.Close()
 
 	for _, f := range zipReader.File {
-		path := filepath.Join(destPath, f.Name)
+		//issue#62: fix ZipSlip bug
+		path, err := safeFilepathJoin(destPath, f.Name)
+		if err != nil {
+			return err
+		}
 		if f.FileInfo().IsDir() {
 			os.MkdirAll(path, os.ModePerm)
 		} else {
@@ -249,6 +254,17 @@ func UnZip(zipFile string, destPath string) error {
 	return nil
 }
 
+func safeFilepathJoin(path1, path2 string) (string, error) {
+	relPath, err := filepath.Rel(".", path2)
+	if err != nil || strings.HasPrefix(relPath, "..") {
+		return "", fmt.Errorf("(zipslip) filepath is unsafe %q: %v", path2, err)
+	}
+	if path1 == "" {
+		path1 = "."
+	}
+	return filepath.Join(path1, filepath.Join("/", relPath)), nil
+}
+
 // IsLink checks if a file is symbol link or not
 func IsLink(path string) bool {
 	fi, err := os.Lstat(path)

netutil/http_client.go

@@ -0,0 +1,228 @@
+package netutil
+
+import (
+	"bytes"
+	"crypto/tls"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"reflect"
+	"regexp"
+	"strings"
+	"time"
+
+	"github.com/duke-git/lancet/slice"
+)
+
+// HttpRequest struct is a composed http request
+type HttpRequest struct {
+	RawURL      string
+	Method      string
+	Headers     http.Header
+	QueryParams url.Values
+	FormData    url.Values
+	Body        []byte
+}
+
+// HttpClientConfig contains some configurations for http client
+type HttpClientConfig struct {
+	SSLEnabled       bool
+	TLSConfig        *tls.Config
+	Compressed       bool
+	HandshakeTimeout time.Duration
+	ResponseTimeout  time.Duration
+	Verbose          bool
+}
+
+// defaultHttpClientConfig defalut client config
+var defaultHttpClientConfig = &HttpClientConfig{
+	Compressed:       false,
+	HandshakeTimeout: 20 * time.Second,
+	ResponseTimeout:  40 * time.Second,
+}
+
+// HttpClient is used for sending http request
+type HttpClient struct {
+	*http.Client
+	TLS     *tls.Config
+	Request *http.Request
+	Config  HttpClientConfig
+}
+
+// NewHttpClient make a HttpClient instance
+func NewHttpClient() *HttpClient {
+	client := &HttpClient{
+		Client: &http.Client{
+			Transport: &http.Transport{
+				TLSHandshakeTimeout:   defaultHttpClientConfig.HandshakeTimeout,
+				ResponseHeaderTimeout: defaultHttpClientConfig.ResponseTimeout,
+				DisableCompression:    !defaultHttpClientConfig.Compressed,
+			},
+		},
+		Config: *defaultHttpClientConfig,
+	}
+
+	return client
+}
+
+// NewHttpClientWithConfig make a HttpClient instance with pass config
+func NewHttpClientWithConfig(config *HttpClientConfig) *HttpClient {
+	if config == nil {
+		config = defaultHttpClientConfig
+	}
+
+	client := &HttpClient{
+		Client: &http.Client{
+			Transport: &http.Transport{
+				TLSHandshakeTimeout:   config.HandshakeTimeout,
+				ResponseHeaderTimeout: config.ResponseTimeout,
+				DisableCompression:    !config.Compressed,
+			},
+		},
+		Config: *config,
+	}
+
+	if config.SSLEnabled {
+		client.TLS = config.TLSConfig
+	}
+
+	return client
+}
+
+// SendRequest send http request
+func (client *HttpClient) SendRequest(request *HttpRequest) (*http.Response, error) {
+	err := validateRequest(request)
+	if err != nil {
+		return nil, err
+	}
+
+	rawUrl := request.RawURL
+
+	req, err := http.NewRequest(request.Method, rawUrl, bytes.NewBuffer(request.Body))
+	if err != nil {
+		return nil, err
+	}
+
+	client.setTLS(rawUrl)
+	client.setHeader(req, request.Headers)
+	client.setQueryParam(req, rawUrl, request.QueryParams)
+
+	if request.FormData != nil {
+		client.setFormData(req, request.FormData)
+	}
+
+	client.Request = req
+
+	resp, err := client.Client.Do(req)
+	if err != nil {
+		return nil, err
+	}
+
+	return resp, nil
+}
+
+// DecodeResponse decode response into target object
+func (client *HttpClient) DecodeResponse(resp *http.Response, target interface{}) error {
+	if resp == nil {
+		return errors.New("invalid target param")
+	}
+	defer resp.Body.Close()
+	return json.NewDecoder(resp.Body).Decode(target)
+}
+
+// setTLS set http client transport TLSClientConfig
+func (client *HttpClient) setTLS(rawUrl string) {
+	if strings.HasPrefix(rawUrl, "https") {
+		if transport, ok := client.Client.Transport.(*http.Transport); ok {
+			transport.TLSClientConfig = client.TLS
+		}
+	}
+}
+
+// setHeader set http rquest header
+func (client *HttpClient) setHeader(req *http.Request, headers http.Header) {
+	if headers == nil {
+		headers = make(http.Header)
+	}
+
+	if _, ok := headers["Accept"]; !ok {
+		headers["Accept"] = []string{"*/*"}
+	}
+	if _, ok := headers["Accept-Encoding"]; !ok && client.Config.Compressed {
+		headers["Accept-Encoding"] = []string{"deflate, gzip"}
+	}
+
+	req.Header = headers
+}
+
+// setQueryParam set http request query string param
+func (client *HttpClient) setQueryParam(req *http.Request, reqUrl string, queryParam url.Values) error {
+	if queryParam != nil {
+		if !strings.Contains(reqUrl, "?") {
+			reqUrl = reqUrl + "?" + queryParam.Encode()
+		} else {
+			reqUrl = reqUrl + "&" + queryParam.Encode()
+		}
+		u, err := url.Parse(reqUrl)
+		if err != nil {
+			return err
+		}
+		req.URL = u
+	}
+	return nil
+}
+
+func (client *HttpClient) setFormData(req *http.Request, values url.Values) {
+	formData := []byte(values.Encode())
+	req.Body = ioutil.NopCloser(bytes.NewReader(formData))
+	req.ContentLength = int64(len(formData))
+}
+
+// validateRequest check if a request has url, and valid method.
+func validateRequest(req *HttpRequest) error {
+	if req.RawURL == "" {
+		return errors.New("invalid request url")
+	}
+
+	// common HTTP methods
+	methods := []string{"GET", "POST", "PUT", "DELETE", "PATCH",
+		"HEAD", "CONNECT", "OPTIONS", "TRACE"}
+
+	if !slice.Contain(methods, strings.ToUpper(req.Method)) {
+		return errors.New("invalid request method")
+	}
+
+	return nil
+}
+
+// StructToUrlValues convert struct to url valuse,
+// only convert the field which is exported and has `json` tag
+func StructToUrlValues(targetStruct interface{}) url.Values {
+	rv := reflect.ValueOf(targetStruct)
+	rt := reflect.TypeOf(targetStruct)
+
+	if rt.Kind() == reflect.Ptr {
+		rt = rt.Elem()
+	}
+	if rt.Kind() != reflect.Struct {
+		panic(fmt.Errorf("data type %T not support, shuld be struct or pointer to struct", targetStruct))
+	}
+
+	result := url.Values{}
+
+	fieldNum := rt.NumField()
+	pattern := `^[A-Z]`
+	regex := regexp.MustCompile(pattern)
+	for i := 0; i < fieldNum; i++ {
+		name := rt.Field(i).Name
+		tag := rt.Field(i).Tag.Get("json")
+		if regex.MatchString(name) && tag != "" {
+			result.Add(tag, fmt.Sprintf("%v", rv.Field(i).Interface()))
+		}
+	}
+
+	return result
+}

netutil/http_client_test.go

@@ -0,0 +1,95 @@
+package netutil
+
+import (
+	"io/ioutil"
+	"log"
+	"net/http"
+	"net/url"
+	"testing"
+
+	"github.com/duke-git/lancet/internal"
+)
+
+func TestHttpClient_Get(t *testing.T) {
+	assert := internal.NewAssert(t, "TestHttpClient_Get")
+
+	request := &HttpRequest{
+		RawURL: "https://jsonplaceholder.typicode.com/todos/1",
+		Method: "GET",
+	}
+
+	httpClient := NewHttpClient()
+	resp, err := httpClient.SendRequest(request)
+	if err != nil || resp.StatusCode != 200 {
+		log.Fatal(err)
+	}
+
+	type Todo struct {
+		UserId    int    `json:"userId"`
+		Id        int    `json:"id"`
+		Title     string `json:"title"`
+		Completed bool   `json:"completed"`
+	}
+
+	var todo Todo
+	httpClient.DecodeResponse(resp, &todo)
+
+	assert.Equal(1, todo.Id)
+}
+
+func TestHttpClent_Post(t *testing.T) {
+	header := http.Header{}
+	header.Add("Content-Type", "multipart/form-data")
+
+	postData := url.Values{}
+	postData.Add("userId", "1")
+	postData.Add("title", "testItem")
+
+	request := &HttpRequest{
+		RawURL:   "https://jsonplaceholder.typicode.com/todos",
+		Method:   "POST",
+		Headers:  header,
+		FormData: postData,
+	}
+
+	httpClient := NewHttpClient()
+	resp, err := httpClient.SendRequest(request)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	body, _ := ioutil.ReadAll(resp.Body)
+	t.Log("response: ", resp.StatusCode, string(body))
+}
+
+func TestStructToUrlValues(t *testing.T) {
+	assert := internal.NewAssert(t, "TestStructToUrlValues")
+
+	type TodoQuery struct {
+		Id     int `json:"id"`
+		UserId int `json:"userId"`
+	}
+	todoQuery := TodoQuery{
+		Id:     1,
+		UserId: 1,
+	}
+	todoValues := StructToUrlValues(todoQuery)
+
+	assert.Equal("1", todoValues.Get("id"))
+	assert.Equal("1", todoValues.Get("userId"))
+
+	request := &HttpRequest{
+		RawURL:      "https://jsonplaceholder.typicode.com/todos",
+		Method:      "GET",
+		QueryParams: todoValues,
+	}
+
+	httpClient := NewHttpClient()
+	resp, err := httpClient.SendRequest(request)
+	if err != nil || resp.StatusCode != 200 {
+		log.Fatal(err)
+	}
+
+	body, _ := ioutil.ReadAll(resp.Body)
+	t.Log("response: ", string(body))
+}

random/random.go

@@ -12,18 +12,12 @@ import (
 	"time"
 )
 
-// RandString generate random string
+const (
-// see https://stackoverflow.com/questions/22892120/how-to-generate-a-random-string-of-a-fixed-length-in-go
+	NUMERAL       = "0123456789"
-func RandString(length int) string {
+	LOWER_LETTERS = "abcdefghijklmnopqrstuvwxyz"
-	const letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+	UPPER_LETTERS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-
+	LETTERS       = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
-	b := make([]byte, length)
+)
-	r := rand.New(rand.NewSource(time.Now().UnixNano()))
-	for i := range b {
-		b[i] = letters[r.Int63()%int64(len(letters))]
-	}
-	return string(b)
-}
 
 // RandInt generate random int between min and max, maybe min,  not be max
 func RandInt(min, max int) int {
@@ -50,6 +44,41 @@ func RandBytes(length int) []byte {
 	return b
 }
 
+// RandString generate random string
+func RandString(length int) string {
+	return random(LETTERS, length)
+}
+
+// RandUpper generate a random upper case string
+func RandUpper(length int) string {
+	return random(UPPER_LETTERS, length)
+}
+
+// RandLower generate a random lower case string
+func RandLower(length int) string {
+	return random(LOWER_LETTERS, length)
+}
+
+// RandNumeral generate a random numeral string
+func RandNumeral(length int) string {
+	return random(NUMERAL, length)
+}
+
+// RandNumeralOrLetter generate a random numeral or letter string
+func RandNumeralOrLetter(length int) string {
+	return random(NUMERAL+LETTERS, length)
+}
+
+// random generate a random string based on given string range
+func random(s string, length int) string {
+	b := make([]byte, length)
+	r := rand.New(rand.NewSource(time.Now().UnixNano()))
+	for i := range b {
+		b[i] = s[r.Int63()%int64(len(s))]
+	}
+	return string(b)
+}
+
 // UUIdV4 generate a random UUID of version 4 according to RFC 4122
 func UUIdV4() (string, error) {
 	uuid := make([]byte, 16)

random/random_test.go

@@ -19,6 +19,51 @@ func TestRandString(t *testing.T) {
 	assert.Equal(true, reg.MatchString(randStr))
 }
 
+func TestRandUpper(t *testing.T) {
+	pattern := `^[A-Z]+$`
+	reg := regexp.MustCompile(pattern)
+
+	randStr := RandUpper(6)
+
+	assert := internal.NewAssert(t, "TestRandUpper")
+	assert.Equal(6, len(randStr))
+	assert.Equal(true, reg.MatchString(randStr))
+}
+
+func TestRandLower(t *testing.T) {
+	pattern := `^[a-z]+$`
+	reg := regexp.MustCompile(pattern)
+
+	randStr := RandLower(6)
+
+	assert := internal.NewAssert(t, "TestRandLower")
+	assert.Equal(6, len(randStr))
+	assert.Equal(true, reg.MatchString(randStr))
+}
+
+func TestRandNumeral(t *testing.T) {
+	pattern := `^[0-9]+$`
+	reg := regexp.MustCompile(pattern)
+
+	randStr := RandNumeral(12)
+
+	assert := internal.NewAssert(t, "TestRandNumeral")
+	assert.Equal(12, len(randStr))
+	assert.Equal(true, reg.MatchString(randStr))
+}
+
+func TestRandNumeralOrLetter(t *testing.T) {
+	pattern := `^[0-9a-zA-Z]+$`
+	reg := regexp.MustCompile(pattern)
+
+	randStr := RandNumeralOrLetter(10)
+	t.Log(randStr)
+
+	assert := internal.NewAssert(t, "TestRandNumeralOrLetter")
+	assert.Equal(10, len(randStr))
+	assert.Equal(true, reg.MatchString(randStr))
+}
+
 func TestRandInt(t *testing.T) {
 	assert := internal.NewAssert(t, "TestRandInt")