我正在尝试使用 API 来更新在线数据库。
该 API 由法国网站托管，使用详细信息很少，没有示例。
这是他们提供的信息
The query must be sent as a "multipart / form-data" html form using the "POST" method.
Input parameters:
ssid : (type "text") user's ScreenScraper identifier
sspassword : (type "text") ScreenScraper password of the user
gameid : (type "text") numerical identifier of the game on ScreenScraper
or
romid ( "text") numeric ID of the Roma on ScreenScraper
to propose a textual info:
modiftypeinfo ( "text") type of information sent (see list "modiftypeinfo")
modifregion ( "text"
<html>
<head>
<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<META http-equiv="content-language" content="fr">
<title></title>
</head>
<body>
<form name="myform" id="myform" method="post" enctype="multipart/form-data" action="https://www.screenscraper.fr/api/botProposition.php?ssid=xxx&sspassword=yyy">
<input type="text" name="gameid" value="3">
<input type="text" name="modiftypeinfo" value="description">
<input type="text" name="modifregion" value="">
<input type="text" name="modiflangue" value="fr">
<input type="text" name="modifversion" value="">
<input type="text" name="modiftexte" value="ici, le synopsis du jeu ! ne pas valider, c'est un test ;)">
<input type="text" name="modifsource" value="botProposition / source de l'info">
<input type="submit" value="envoyer">
</form>
<script>
document.getElementById("myform").submit();
</script>
</body>
</html>
这是我整理的代码:
Sub Post_Detail()
Dim xmlhttp As Object, response As String, SendString As String
Set xmlhttp = CreateObject("MSXML2.XMLHTTP.6.0")
'~~> Indicates that page that will receive the request and the type of request being submitted
xmlhttp.Open "POST", "https://www.screenscraper.fr/api/botProposition.php?ssid=xxx&sspassword=yyy", False
'~~> Indicate that the body of the request contains form data
xmlhttp.setRequestHeader "Content-Type", "text/html; charset=UTF-8"
xmlhttp.setRequestHeader "enctype", "multipart/form-data"
'~~> Send the data as name/value pairs
SendString = "&type=text&name=gameid&value=185882"
SendString = SendString & "&type=text&name=modiftypeinfo&value=genres"
SendString = SendString & "&type=text&name=modiftexte&value=Sports"
SendString = SendString & "&type=submit&value=envoyer"
Debug.Print SendString
xmlhttp.send SendString
response = xmlhttp.responseText
MsgBox response
Set xmlhttp = Nothing
End Sub
我不确定如何处理这部分:说明中的 form name="myform"id="myform" 并且我不确定我通过构建字符串的请求是否在任何地方接近正确。
如果没有登录，您将无法运行，它将返回密码无效错误。
最佳答案
multipart/form-data 的结构在 RFC7578 中描述。 。有一个示例:
POST /form.html HTTP/1.1
Host: server.com
Referer: http://server.com/form.html
User-Agent: Mozilla
Content-Type: multipart/form-data; boundary=-------------573cf973d5228
Content-Length: 288
Connection: keep-alive
Keep-Alive: 300
---------------573cf973d5228
Content-Disposition: form-data; name="field"
text
---------------573cf973d5228
Content-Disposition: form-data; name="file"; filename="sample.txt"
Content-Type: text/plain
Content file
---------------573cf973d5228--
尝试以下代码来制作 POST XHR:
Sub POST_multipart_form_data()
Dim oFields As Object
Dim sBoundary As String
Dim sPayLoad As String
Dim sName As Variant
Set oFields = CreateObject("Scripting.Dictionary")
With oFields
.Add "gameid", "3"
.Add "modiftypeinfo", "description"
.Add "modifregion", ""
.Add "modiflangue", "fr"
.Add "modifversion", ""
.Add "modiftexte", "ici, le synopsis du jeu ! ne pas valider, c'est un test ;)"
.Add "modifsource", "botProposition / source de l'info"
End With
sBoundary = String(6, "-") & Replace(Mid(CreateObject("Scriptlet.TypeLib").GUID, 2, 36), "-", "")
sPayLoad = ""
For Each sName In oFields
sPayLoad = sPayLoad & "--" & sBoundary & vbCrLf
sPayLoad = sPayLoad & "Content-Disposition: form-data; name=""" & sName & """" & vbCrLf & vbCrLf
sPayLoad = sPayLoad & oFields(sName) & vbCrLf
Next
sPayLoad = sPayLoad & "--" & sBoundary & "--"
With CreateObject("MSXML2.XMLHTTP")
.Open "POST", "https://www.screenscraper.fr/api/botProposition.php?ssid=xxx&sspassword=yyy", False
.setRequestHeader "Content-Type", "multipart/form-data; boundary=" & sBoundary
.setRequestHeader "Content-Length", LenB(sPayLoad)
.send (sPayLoad)
MsgBox .responseText ' Erreur de login : Verifier vos identifiants !
End With
End Sub
所以代码生成的payload数据如下:
--------CFE02291483D4B3EB3B1A92257838D94
Content-Disposition: form-data; name="gameid"
3
--------CFE02291483D4B3EB3B1A92257838D94
Content-Disposition: form-data; name="modiftypeinfo"
description
--------CFE02291483D4B3EB3B1A92257838D94
Content-Disposition: form-data; name="modifregion"
--------CFE02291483D4B3EB3B1A92257838D94
Content-Disposition: form-data; name="modiflangue"
fr
--------CFE02291483D4B3EB3B1A92257838D94
Content-Disposition: form-data; name="modifversion"
--------CFE02291483D4B3EB3B1A92257838D94
Content-Disposition: form-data; name="modiftexte"
ici, le synopsis du jeu ! ne pas valider, c'est un test ;)
--------CFE02291483D4B3EB3B1A92257838D94
Content-Disposition: form-data; name="modifsource"
botProposition / source de l'info
--------CFE02291483D4B3EB3B1A92257838D94--
请注意，每个部分的可选“Content-Type” header 字段默认为“text/plain”。正如您在评论中看到的，我的响应中有登录错误:
Erreur de login : Verifier vos identifiants !
我唯一不明白的是为什么他们将提交指定为multipart/form-data？即使没有附加文件!使用以下代码以 application/x-www-form-urlencoded 形式发送数据要容易得多:
Sub POST_application_x_www_form_urlencoded()
Dim oFields As Object
Dim sPayLoad As String
Dim sName As Variant
Set oFields = CreateObject("Scripting.Dictionary")
With oFields
.Add "gameid", "3"
.Add "modiftypeinfo", "description"
.Add "modifregion", ""
.Add "modiflangue", "fr"
.Add "modifversion", ""
.Add "modiftexte", "ici, le synopsis du jeu ! ne pas valider, c'est un test ;)"
.Add "modifsource", "botProposition / source de l'info"
End With
For Each sName In oFields
oFields(sName) = sName & "=" & EncodeUriComponent(oFields(sName))
Next
sPayLoad = Join(oFields.Items(), "&")
With CreateObject("MSXML2.XMLHTTP")
.Open "POST", "https://www.screenscraper.fr/api/botProposition.php?ssid=xxx&sspassword=yyy", False
.setRequestHeader "Content-Type", "application/x-www-form-urlencoded"
.setRequestHeader "Content-Length", LenB(sPayLoad)
.send (sPayLoad)
MsgBox .responseText ' Erreur de login : Verifier vos identifiants !
End With
End Sub
Function EncodeUriComponent(sText As String) As String
Static oHtmlfile As Object
If oHtmlfile Is Nothing Then
Set oHtmlfile = CreateObject("htmlfile")
oHtmlfile.parentWindow.execScript "function encode(s) {return encodeURIComponent(s)}", "jscript"
End If
EncodeUriComponent = oHtmlfile.parentWindow.encode(sText)
End Function
代码生成的payload数据如下:
gameid=3&modiftypeinfo=description&modifregion=&modiflangue=fr&modifversion=&modiftexte=ici%2C%20le%20synopsis%20du%20jeu%20!%20ne%20pas%20valider%2C%20c'est%20un%20test%20%3B)&modifsource=botProposition%20%2F%20source%20de%20l'info
错误响应与我的第一种方法相同。
关于vba - 需要帮助以在 VBA 中使用 post 方法发布多部分表单数据，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/43130609/