Html 在StringWithContents之后，URL cookies不会保存在UIWebView中。网间网操作系统

我想从url获取html，我使用：

NSString *URLtoHTML = [NSString stringWithContentsOfURL:self.url encoding:NSUTF8StringEncoding error:nil];
[self.webView loadHTMLString:URLtoHTML baseURL:nil];

但在这之后，我的cookies会在UIWebView中清理。 但如果我使用load request而不使用StringWithContents URL cookies save：

[self.webView loadRequest:[NSURLRequest requestWithURL:self.url]];

我试过了，但没有保存：

NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
    [receivedData appendData:data];
    NSString *dataString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
}

NSString *URLtoHTML = [NSString stringWithContentsOfURL:self.url encoding:NSUTF8StringEncoding error:nil];
[self.webView loadRequest:[NSURLRequest requestWithURL:self.url]];

如何获取HTML并将其与Cookie一起加载到UIWebView中

更新： 如果我使用这种情况（两条不相关的行），cookies也不会保存：

NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
    [receivedData appendData:data];
    NSString *dataString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
}

NSString *URLtoHTML = [NSString stringWithContentsOfURL:self.url encoding:NSUTF8StringEncoding error:nil];
[self.webView loadRequest:[NSURLRequest requestWithURL:self.url]];

---

i、 e.

stringWithContentsOfURL

不保存cookies。这怎么可能？有趣的是：在这种情况下，您可以从URL下载原始内容，并在WebView中显示这些数据。WebView只是不知道你的cookies

NSString *URLtoHTML = [NSString stringWithContentsOfURL:self.url encoding:NSUTF8StringEncoding error:nil];
[self.webView loadHTMLString:URLtoHTML baseURL:nil];

在本例中，您创建了连接，但再次只下载原始数据

NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
    [receivedData appendData:data];
    NSString *dataString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
}

这是一个更接近，所有你需要的-它的捕获加载的数据从WebView

[self.webView loadRequest:[NSURLRequest requestWithURL:self.url]];
NSString *html = [self.webView stringByEvaluatingJavaScriptFromString: 
                                     @"document.body.innerHTML"];

---

我的解决方案：

首先，我检查了从服务器获取的设置Cookie：

NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.simple.com/"]];
NSURLConnection *connection = [NSURLConnection connectionWithRequest:request delegate:self];

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
    NSHTTPURLResponse *HTTPResponse = (NSHTTPURLResponse *)response;
    NSDictionary *fields = [HTTPResponse allHeaderFields];
    NSString *cookie = [fields valueForKey:@"Set-Cookie"]; // It is cookie
}

我意识到我得到了价值，在这个价值中cookies被禁用。 现在，我首先发送启用cookies的请求：

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://www.simple.com/"]];
[request addValue:myCustomCookies forHTTPHeaderField:@"Cookie"];

我的解决方案2:

我发送带有post数据的请求

NSString *post = [NSString stringWithFormat:@"login=%@&passwors=%@",_login.text,_password.text];
        NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
        NSString *postLength = [NSString stringWithFormat:@"%lu",(unsigned long)[postData length]];
        NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
        [request setURL:[NSURL URLWithString:[NSString stringWithFormat:@"http://www.simple.com/login"]]];
        [request setHTTPMethod:@"POST"];
        [request setValue:postLength forHTTPHeaderField:@"Content-Length"];
        [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
        [request setHTTPBody:postData];
        request.timeoutInterval = 20;
        NSURLConnection *conn = [[NSURLConnection alloc]initWithRequest:request delegate:self];

---

就这些！祝大家好运

但在这种情况下，我必须等待页面加载：-（void）webViewDidFinishLoad:（UIWebView*）webView{NSString*html=[self.webView stringByEvaluatingJavaScriptFromString:@“document.body.innerHTML”]；}这是一个很长的时间，不适合我。有什么建议吗？