Objective C - 使用NSURLConnection发布POST数据 [英] Objective C - POST data using NSURLConnection

问题描述

我正在慢慢地学习用于iOS开发的URL加载系统，我希望有人可以简要解释下面这段代码：

I'm very slowly working my way through learning the URL loading system for iOS development, and I am hoping someone could briefly explain the following piece of code:

NSString *myParameters = [[NSString alloc] initWithFormat:@"one=two&three=four"];
[myRequest setHTTPMethod:@"POST"];
[myRequest setHTTPBody:[myParameters dataUsingEncoding:NSUTF8StringEncoding]];

最后我希望能够创建一个登录我ISP网站的应用程序并检索多少我已经离开了这个月余下的数据，我觉得我应该首先考虑setHTTPMethod / setHTTPBody。

Eventually I would like to be able to create an application that logs into my ISP's website and retrieves how much data I have left for the rest of the month, and I feel as though I should get my head around setHTTPMethod/setHTTPBody first.

亲切的问候

推荐答案

这是一个非常简单的HTTP请求设置;如果您有更具体的问题，可以更好地询问这些问题。

This is a pretty simple HTTP request setup; if you have more specific questions you might do better asking those.

NSString *myParameters = @"paramOne=valueOne&paramTwo=valueTwo";

这会设置一个包含POST参数的字符串。

This sets up a string containing the POST parameters.

[myRequest setHTTPMethod:@"POST"];

请求必须是 POST请求。

[myRequest setHTTPBody:[myParameters dataUsingEncoding:NSUTF8StringEncoding]];

这会将参数放入帖子正文中（它们需要是原始数据，所以我们先对它们进行编码如UTF-8）。

This puts the parameters into the post body (they need to be raw data, so we first encode them as UTF-8).

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