iOS7 UIWebView设置支持加载HTTPS请求

直接复制拷贝就可以了

@interface SCYBaseWebViewController ()<NSURLConnectionDelegate,NSURLConnectionDataDelegate>{
    NSURLRequest *_originRequest;
    NSURLConnection *_urlConnection;
    BOOL _authenticated;
}

_originRequest为原始请求，通过外部传递的的URL初始化。

 _urlConnection = [[NSURLConnection alloc] initWithRequest:_originRequest delegate:self];的初始化

其实只要 _originRequest知道是什么了，剩下直接复制咯

#pragma mark - UIWebViewDelegate
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{
    if (!_authenticated && [request.URL.scheme hasPrefix:@"https"]) {
        _urlConnection = [[NSURLConnection alloc] initWithRequest:_originRequest delegate:self];
        [_urlConnection start];
        return NO;
    }
    return YES;
}

#pragma mark - NSURLConnectionDelegate
- (BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace{
    return [protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust];
}

- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge{
    if ([challenge previousFailureCount] == 0){
        _authenticated = YES;
        NSURLCredential *credential = [NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust];
        [challenge.sender useCredential:credential forAuthenticationChallenge:challenge];
    } else {
        [[challenge sender] cancelAuthenticationChallenge:challenge];
    }
}

#pragma mark - NSURLConnectionDataDelegate
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response{
    _authenticated = YES;
    [self.webView loadRequest:_originRequest];
    [_urlConnection cancel];
}