我需要从zendesk获取base64格式的附件文件。
我试着这样做，但对我不起作用：
`HttpRequest req=新的HttpRequest((；req.setEndpoint('https://-----.zendesk.com/attachments/token/TOKEN/?name=stvm+%2810%29.pdf’(；req.setMethod('GET'(；
Http Http=new Http((；HTTPResponse res=http.send(req(；
Blob body=res.getBodyAsBlob((；`
但它的身体价值正在发挥作用，正如我所需要的。
反应是这样的：
<html><body>You are being <a href="https://xxx.zdusercontent.com/attachment/000001/sdlfkashdf98709udfah?token=eyJhbGciOiJkaX46SgYrFzTEpYqUIzpQeNnl5BMBNoRnUOsgQj389Ei7nNcGOcfGYaavlqLL2qaIiLCJlbmMiOiJBMTI4Q0JDLUhTMjU2In0..U8oX8QnYBM1lZMb6rhQGRA.NC3Z9kHC9ZE6HhygIHHan6xWYvoPqziVx76CZ6vcNYHBuAjV-LmBclVJYumKWKXA_PDhXX27z977XKYrLJZSc85a6lJTEqd-V2mP7U6O6r0_6E9hO8CWaA1dyxYYWw8kUsgMFUaPr0wCupxm3NbDzT03ZwO6EBJj79x4UZdauiXfEUrSwdl1pPahlQE2VfFo8DprgX9GQHzRFm5lwMrhA3crogo8Ox
谢谢！
我找到了解决问题的方法。
在salesforce apex代码中，我通过substring方法获得URL响应，并使用Pagereferece打开URL，如下所示：
String exampleMyResponse= '<html><body>You are being <a href="https://xxx.zdusercontent.com/attachment/000001/sdlfkashdf98709udfah?token=eyJhbGciOiJkaX46SgYrFzTEpYqUIzpQeNnl5BMBNoRnUOsgQj389Ei7nNcGOcfGYaavlqLL2qaIiLCJlbmMiOiJBMTI4Q0JDLUhTMjU2In0..U8oX8QnYBM1lZMb6rhQGRA.NC3Z9kHC9ZE6HhygIHHan6xWYvoPqziVx76CZ6vcNYHBuAjV-LmBclVJYumKWKXA_PDhXX27z977XKYrLJZSc85a6lJTEqd-V2mP7U6O6r0_6E9hO8CWaA1dyxYYWw8kUsgMFUaPr0wCupxm3NbDzT03ZwO6EBJj79x4UZdauiXfEUrSwdl1pPahlQE2VfFo8DprgX9GQHzRFm5lwMrhA3crogo8Ox';
//You need to authorize your domain "https://xxx.zdusercontent.com" in remote site
Pagereference pg = new Pagereference(exampleMyResponse.substringAfter('href="'));
Blob b = pg.getContentAsPDF();
Attachment att = new Attachment(Name = 'stvm_4', Body = b, ContentType = 'application/pdf', ParentId='Sobject_Id');
insert att;