我正在尝试在Microsoft Access 2013中创建基于REST的API(this API, to be specific)提供的数据的实时链接。最终目标是使数据在查询中可用,就像它是本地数据库一样。
如何实现这一目标?具体来说,我正在努力如何让Access根据请求调用API。我能想到实现类似结果的唯一方法是编写一个脚本,通过API提取整个数据库并将其转换为Access可读格式,然后以设定的时间间隔运行该脚本。但我真的很想找到一个实时工作的解决方案,即使它比本地缓存数据库慢一些。
答案 0 :(得分:11)
由于对RESTful Web服务的调用实际上只是一种特定的HTTP请求,您至少可以使用Microsoft XML库向Web服务发送HTTP请求并解析它返回的任何内容。例如,当我运行以下VBA代码
时' VBA project Reference required:
' Microsoft XML, v3.0
Dim httpReq As New MSXML2.ServerXMLHTTP
httpReq.Open "GET", "http://whois.arin.net/rest/poc/KOSTE-ARIN", False
httpReq.send
Dim response As String
response = httpReq.responseText
Debug.Print response
字符串变量response
包含对我的请求的XML响应。它看起来像这样(在重新格式化以获得可读性之后):
<?xml version='1.0'?>
<?xml-stylesheet type='text/xsl' href='http://whois.arin.net/xsl/website.xsl' ?>
<poc xmlns="http://www.arin.net/whoisrws/core/v1" xmlns:ns2="http://www.arin.net/whoisrws/rdns/v1"
xmlns:ns3="http://www.arin.net/whoisrws/netref/v2" termsOfUse="https://www.arin.net/whois_tou.html"
inaccuracyReportUrl="http://www.arin.net/public/whoisinaccuracy/index.xhtml">
<registrationDate>2009-10-02T11:54:45-04:00</registrationDate>
<ref>http://whois.arin.net/rest/poc/KOSTE-ARIN</ref>
<city>Chantilly</city>
<companyName>ARIN</companyName>
<iso3166-1>
<code2>US</code2>
<code3>USA</code3>
<name>UNITED STATES</name>
<e164>1</e164>
</iso3166-1>
<firstName>Mark</firstName>
<handle>KOSTE-ARIN</handle>
<lastName>Kosters</lastName>
<emails>
<email>markk@kosters.net</email>
<email>markk@bjmk.com</email>
</emails>
<resources termsOfUse="https://www.arin.net/whois_tou.html"
inaccuracyReportUrl="http://www.arin.net/public/whoisinaccuracy/index.xhtml">
<limitExceeded limit="256">false</limitExceeded>
</resources>
<phones>
<phone>
<number>+ 1-703-227-9870</number>
<type>
<description>Office</description>
<code>O</code>
</type>
</phone>
</phones>
<postalCode>20151</postalCode>
<comment>
<line number="0">I'm really MAK21-ARIN</line>
</comment>
<iso3166-2>VA</iso3166-2>
<streetAddress>
<line number="0">3635 Concorde Parkway</line>
</streetAddress>
<updateDate>2015-05-26T11:36:55-04:00</updateDate>
</poc>
您的网络服务返回的内容可能会略有不同。或者,与上面的ARIN whois RWS的情况一样,您可能有多种数据格式可供选择; XML只是默认值。我可以使用
请求纯文本回复httpReq.Open "GET", "http://whois.arin.net/rest/poc/KOSTE-ARIN.txt", False
在这种情况下response
将包含
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
Name: Kosters, Mark
Handle: KOSTE-ARIN
Company: ARIN
Address: 3635 Concorde Parkway
City: Chantilly
StateProv: VA
PostalCode: 20151
Country: US
RegDate: 2009-10-02
Updated: 2015-05-26
Comment: I'm really MAK21-ARIN
Phone: +1-703-227-9870 (Office)
Email: markk@bjmk.com
Email: markk@kosters.net
Ref: http://whois.arin.net/rest/poc/KOSTE-ARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#