网上应该有很多相关的解决办法，这种是调用官方的API， 所以从http直接转https会容易点，而且要修改的地方不多，只需实现以下几个代理方法就可以了，把返回的NSData类型数据 encoding 一下，然后 loadHTMLString 就行了，不多说，直接上代码先：
@interface ViewController ()
<UIWebViewDelegate,NSURLConnectionDelegate,NSURLConnectionDataDelegate>
{
UIWebView *webView;
NSURLConnection *connenction;
NSMutableData *mutableData;
}
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
webView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height)];
webView.delegate = self;
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"https://www.baidu.com"]];
[webView loadRequest:request];
[self.view addSubview:webView];
mutableData = [NSMutableData data];
}
// 相关代理方法
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
if ([request.URL.scheme isEqualToString:@"https"]) {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
connenction = [[NSURLConnection alloc] initWithRequest:request delegate:self];
[connenction start];
#pragma clang diagnostic pop
return NO;
}
return YES;
}
- (void)connection:(NSURLConnection *)connection willSendRequestForAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge {
// 判断是否是信任服务器证书
if ([challenge.protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust]) {
// 创建一个凭据对象
NSURLCredential *credential = [NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust];
//告诉服务器客户端信任证书
[[challenge sender] useCredential:credential forAuthenticationChallenge:challenge];
} else {
if ([challenge previousFailureCount] == 0) {
[[challenge sender] continueWithoutCredentialForAuthenticationChallenge:challenge];
} else {
[[challenge sender] continueWithoutCredentialForAuthenticationChallenge:challenge];
}
}
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
NSLog(@"response %@",response);
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
[mutableData appendData:data];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
NSString *html = [[NSString alloc] initWithData:[mutableData copy] encoding:NSUTF8StringEncoding];
[webView loadHTMLString:html baseURL:[[NSURL alloc] init]];
[connenction cancel];
[mutableData setData:[NSData data]];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
//清空数据
[mutableData setData:[NSData data]];
}
以上方法亲测可行，而且如果你在用http请求时通过 bridgeWebview 实现了JS交互，也是可以的，不会有任何影响，只需在你之前的 UIWebviewController 中实现上面的几个代理方法 就可以了，这样既兼容了 http 请求 也可以兼容 https 请求。本人也只是稍微研究了下，具体有什么不足的地方还请大神们指点出来。。