WKWebView与UIWebView 的重定向区别

1.在WKWebView重定向处理：

在decidePolicyForNavigationAction 代理方法中添加

   NSURL *url = [NSURL URLWithString:string];
    NSMutableURLRequest *quest = [NSMutableURLRequest requestWithURL:url];
    quest.HTTPMethod = @"GET";
    NSURLConnection *connect = [NSURLConnection connectionWithRequest:quest delegate:self];
    [connect start];

并在NSURLConnectionDataDelegate的代理方法

- (nullable NSURLRequest *)connection:(NSURLConnection *)connection willSendRequest:(NSURLRequest *)request redirectResponse:(nullable NSURLResponse *)response
{
    NSHTTPURLResponse *urlResponse = (NSHTTPURLResponse *)response;
    
    NSLog(@"statusCode: %ld", urlResponse.statusCode);
    
    NSDictionary *headers = urlResponse.allHeaderFields;
    NSLog(@"%@", headers);
    NSLog(@"redirect   url: %@", headers[@"Location"]);    // 重定向的地址
    NSLog(@"newRequest url: %@", [request URL]);           // 重定向的地址或原地址
    NSLog(@"redirect response url: %@", [urlResponse URL]);// 触发重定向请求的地址，
    if ([request URL] != nil && headers[@"Location"] != nil)
    {
        NSLog(@"重定向处理");
        [self.wkWebView loadRequest:[NSURLRequest requestWithURL:[request URL]]];
        self.shareUrl = [request URL].absoluteString;
    }
    else
    {
        NSLog(@"无重定向处理");
    }
    return request;
}

2.UIWebView 重定向处理

在 shouldStartLoadWithRequest中加入

 [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
            if (connectionError || ([response respondsToSelector:@selector(statusCode)] && [((NSHTTPURLResponse *)response) statusCode] != 200 && [((NSHTTPURLResponse *)response) statusCode] != 302)) {
                
                    NSLog(@"xy-statusCode = %zd", [(NSHTTPURLResponse *)response statusCode]);
    
            }else {// 重定向的URL
                NSString *url =response.URL.absoluteString;
//                [webView loadRequest:[NSURLRequest requestWithURL:kURLString(response.URL.absoluteString)]];
                NSLog(@"xy-重定向statusCode = %zd", [(NSHTTPURLResponse *)response statusCode]);
                self.shareUrl =url;
            }
            NSLog(@"xy---------------------------------------------------------");
        }];