VB6 http post 发送与返回内容处理

今天帮同事做另一家公司的Web系统数据对接，我方发送请求，对方返回一些数据，用的是客户端用的是VB6，代码记录如下：

Dim postData As String
Dim url As String

url = "http://111.11.11.11/services/getQuickInfoService"
postData = TextContent.Text

'--- post
Dim HttpClient As Object

Set HttpClient = CreateObject("Microsoft.XMLHTTP")
HttpClient.Open "POST", url, False
HttpClient.setRequestHeader "Content-Type", "text/xml; charset=UTF-8"
HttpClient.Send pvToByteArray(postData)

Do While HttpClient.readyState <> 4
DoEvents
Loop

TextResponse.Text = HttpClient.responseText

MsgBox "发送完毕"

下面是发送内容的编码部分：

' 下面是两个转换函数

Private Function pvToByteArray(sText As String) As Byte()
pvToByteArray = GB2312ToUTF8(sText)

End Function

Public Function GB2312ToUTF8(strIn As String, Optional ByVal ReturnValueType As VbVarType = vbString) As Variant
Dim adoStream As Object

Set adoStream = CreateObject("ADODB.Stream")
adoStream.Charset = "utf-8"
adoStream.Type = 2 'adTypeText
adoStream.Open
adoStream.WriteText strIn
adoStream.Position = 0
adoStream.Type = 1 'adTypeBinary
GB2312ToUTF8 = adoStream.Read()
adoStream.Close

If ReturnValueType = vbString Then GB2312ToUTF8 = Mid(GB2312ToUTF8, 1)

End Function

效果：



VB6比较老了，没有Java和C#那么完备，也没什么插件可以实现特定功能，但任然可以用原始的语句写出很多功能。