blocks|key|1501896|text|创建POST+URLRequest并使用它填充webView|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1501897|NSURL+*url+=+[NSURL+URLWithString:+@"http://your_url.com"];
NSString+*body+=+[NSString+stringWithFormat:+@"arg1=%25@&arg2=%25@",+@"val1",@"val2"];
NSMutableURLRequest+*request+=+[[NSMutableURLRequest+alloc]initWithURL:+url];
[request+setHTTPMethod:+@"POST"];
[request+setHTTPBody:+[body+dataUsingEncoding:+NSUTF8StringEncoding]];
[webView+loadRequest:+request];|code-block|syntax|javascript|1501898|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Create POST URLRequest and use it to fill webView

<pre><code>NSURL *url = [NSURL URLWithString: @"http://your_url.com"];
NSString *body = [NSString stringWithFormat: @"arg1=%@&amp;arg2=%@", @"val1",@"val2"];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc]initWithURL: url];
[request setHTTPMethod: @"POST"];
[request setHTTPBody: [body dataUsingEncoding: NSUTF8StringEncoding]];
[webView loadRequest: request];
</code></pre>

blocks|key|1501929|text|这是Swift+3的@2ank3th的修改答案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1501930|let+url+=+NSURL+(string:+"https://www.google.com")
let+request+=+NSMutableURLRequest(url:+url!+as+URL)
request.httpMethod+=+"POST"
request.addValue("application/x-www-form-urlencoded",+forHTTPHeaderField:+"Content-Type")

let+post:+String+=+"sourceId=44574fdsf01e-e4da-4e8c-a897-17722d00e1fe&sourceType=abc"
let+postData:+NSData+=+post.data(using:+String.Encoding.ascii,+allowLossyConversion:+true)!+as+NSData

request.httpBody+=+postData+as+Data
webView.loadRequest(request+as+URLRequest)|code-block|syntax|javascript|1501931|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This is modify answer of @2ank3th for Swift 3:

<pre><code>let url = NSURL (string: "https://www.google.com")
let request = NSMutableURLRequest(url: url! as URL)
request.httpMethod = "POST"
request.addValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")

let post: String = "sourceId=44574fdsf01e-e4da-4e8c-a897-17722d00e1fe&amp;sourceType=abc"
let postData: NSData = post.data(using: String.Encoding.ascii, allowLossyConversion: true)! as NSData

request.httpBody = postData as Data
webView.loadRequest(request as URLRequest)
</code></pre>

blocks|key|1287132|text|对于swift+4|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1287133|首先，最好使用这个扩展：|1287134|extension+URL{
++++func+withQueries(_+queries:[String:String])+->+URL?+{
++++++++var+components+=+URLComponents(url:+self,+resolvingAgainstBaseURL:+true)
++++++++components?.queryItems+=+queries.flatMap{URLQueryItem(name:+$0.0,+value:+$0.1)}
++++++++return+components?.url
++++}

++++func+justQueries(_+queries:[String:String])+->+URL?+{
++++++++var+components+=+URLComponents(url:+self,+resolvingAgainstBaseURL:+true)
++++++++components?.queryItems+=+queries.flatMap{URLQueryItem(name:+$0.0,+value:+$0.1)}
++++++++return+components?.url
++++}

}|code-block|syntax|javascript|1287135|这个扩展对于处理参数和它的值非常有用。第二：|1287136|let+urlstring+=+"https://yourdomain.com"
++++++++let+url+=+URL(string:+urlstring)!
++++++++let+request+=+NSMutableURLRequest(url:+url+as+URL)
++++++++request.httpMethod+=+"POST"
++++++++request.addValue("application/x-www-form-urlencoded",+forHTTPHeaderField:+"Content-Type")
++++++++let+query+:[String:String]+=+["username":"admin","password":"111"]
++++++++let+baseurl+=+URL(string:urlstring)!
++++++++let+postString+=+(baseurl.withQueries(query)!).query
++++++++request.httpBody+=+postString?.data(using:+.utf8)
++++++++webview.load(request+as+URLRequest)|1287137|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

for swift 4 

first its better to use this extension :

<pre><code>extension URL{
 func withQueries(_ queries:[String:String]) -&gt; URL? {
 var components = URLComponents(url: self, resolvingAgainstBaseURL: true)
 components?.queryItems = queries.flatMap{URLQueryItem(name: $0.0, value: $0.1)}
 return components?.url
 }

 func justQueries(_ queries:[String:String]) -&gt; URL? {
 var components = URLComponents(url: self, resolvingAgainstBaseURL: true)
 components?.queryItems = queries.flatMap{URLQueryItem(name: $0.0, value: $0.1)}
 return components?.url
 }

}
</code></pre>

this extension is very useful to handle parameters and its values.
second:

<pre><code>let urlstring = "https://yourdomain.com"
 let url = URL(string: urlstring)!
 let request = NSMutableURLRequest(url: url as URL)
 request.httpMethod = "POST"
 request.addValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
 let query :[String:String] = ["username":"admin","password":"111"]
 let baseurl = URL(string:urlstring)!
 let postString = (baseurl.withQueries(query)!).query
 request.httpBody = postString?.data(using: .utf8)
 webview.load(request as URLRequest)
</code></pre>

Is it possible to load a page through UIWebView with POST parameters?
I can probably just load an embedded form with the parameters and fill them in with javascript and force a submit, but is there a cleaner and faster way?

Thanks!

Loading a webpage through UIWebView with POST parameters

Swift

可以使用POST参数通过UIWebView加载页面吗？我可能只需要加载一个带有参数的嵌入式表单，然后用javascript填充它们，然后强制提交，但是有没有一种更干净更快的方法呢？谢谢!

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