SOAPメソッドの確認 http:///_vti_bin/Lists.asmx?op=GetListItems を見てサーバに送らなければいけない内容を確認 POST /_vti_bin/Lists.asmx HTTP/1.1Host: Content-Type: text/xml; charset=utf-8Content-Length: lengthSOAPAction: "http://schemas.microsoft.com/sharepoint/soap/GetListItems" <?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema