我正在编写 iOS 应用程序。有一个与一些房地产有关的服务器。我必须向服务器发送以下请求以获取 Nonce。
GET /ptest/login HTTP/1.1
Method: GET
User-Agent: MRIS API
Testing Tool/2.0
Rets-Version: RETS/1.7
Accept: */*
Host: ptest.mris.com:6103
Connection: keep-alive
我正在使用带有以下代码的 ASI HTTP 进行发布：
[self setRequest:[ASIHTTPRequest requestWithURL:[NSURL URLWithString:@"/ptest/login"]]];
[request addRequestHeader:@"User-Agent" value:@"CARETS-General/1.0"];
[request addRequestHeader:@"Rets-Version" value:@"1.7"];
[request addRequestHeader:@"Connection" value:@"keep-alive"];
[request addRequestHeader:@"Accept" value:@"*/*"];
[request addRequestHeader:@"Host" value:"ptest.mris.com:6103"];
[request setDelegate:self];
[request setDidFinishSelector:@selector(topSecretFetchComplete:)];
[request setDidFailSelector:@selector(topSecretFetchFailed:)];
[request startAsynchronous];
我得到的响应是
错误：无法启动 HTTP 连接
有人能告诉我如何建立成功的连接吗？