ios - 将 HTML 字符串下载到 iOS 中的 NSString 或 Swift String 变量中

Question

Alternative titles

• How to download a web page data in Objective-C on iPhone?
• How to read entire content of an html resource file into an NSString *
• How to download a web page data in Swift?
• Saving HTML pages in an NSString

如何获取网页数据并将数据放入字符串中？

类似于:

NSString *webPageBody = GetWebPageData("www.mysite.com/webpage.html");

在 webPageBody 中，我想看到“html 我的网页 html”。

Answer 1

swift 3.0

guard let url = URL(string: "http://www.example.com") else {
    return
}

do {
    let html = try String(contentsOf: url)
}
catch {
    //handle `error` here
}

swift 2.3

guard let url = NSURL(string: "http://www.example.com") else {
    return
}

do {
    let html = try String(contentsOfURL: url)
}
catch {
    //handle `error` here
}

objective-C

NSString *url = @"http://www.example.com";
NSURL *urlRequest = [NSURL URLWithString:url];
NSError *err = nil;

NSString *html = [NSString stringWithContentsOfURL:urlRequest encoding:NSUTF8StringEncoding error:&err];

if(err)
{
    //Handle 
}