AF3.0

//添加证书
- (AFSecurityPolicy *)customSecurityPolicy {
    // /先导入证书
    NSString *cerPath = [[NSBundle mainBundle] pathForResource:@"aichewang.cer" ofType:nil]; //证书的路径
    NSData *certData = [NSData dataWithContentsOfFile:cerPath];
    // AFSSLPinningModeCertificate 使用证书验证模式
    AFSecurityPolicy *securityPolicy = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeCertificate];

    // allowInvalidCertificates 是否允许无效证书（也就是自建的证书），默认为NO
    // 如果是需要验证自建证书，需要设置为YES
    securityPolicy.allowInvalidCertificates = YES;

    // validatesDomainName 是否需要验证域名，默认为YES；
    //假如证书的域名与你请求的域名不一致，需把该项设置为NO；如设成NO的话，即服务器使用其他可信任机构颁发的证书，也可以建立连接，这个非常危险，建议打开。
    //置为NO，主要用于这种情况：客户端请求的是子域名，而证书上的是另外一个域名。因为SSL证书上的域名是独立的，假如证书上注册的域名是www.google.com，那么mail.google.com是无法验证通过的；当然，有钱可以注册通配符的域名*.google.com，但这个还是比较贵的。
    //如置为NO，建议自己添加对应域名的校验逻辑。
    securityPolicy.validatesDomainName = NO;

    securityPolicy.pinnedCertificates = [[NSSet alloc] initWithObjects:certData, nil];

    return securityPolicy;
}

eg:

        _sessionManager = [AFHTTPSessionManager manager];
        //        [_sessionManager setSecurityPolicy:[self customSecurityPolicy]];

WKWebView

设置代理navigationDelegate

// https 支持
- (void)webView:(WKWebView *)webView didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge completionHandler:(void (^)(NSURLSessionAuthChallengeDisposition disposition, NSURLCredential * _Nullable credential))completionHandler{

    if ([challenge.protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust]) {

        NSURLCredential *card = [[NSURLCredential alloc]initWithTrust:challenge.protectionSpace.serverTrust];

        completionHandler(NSURLSessionAuthChallengeUseCredential,card);

    }
}

SDWebImage

options : SDWebImageAllowInvalidSSLCertificates
通过runtime 方法交换

import "UIImageView+JFHttps.h"
#import <UIImageView+WebCache.h>
#import <objc/runtime.h>

@implementation UIImageView (JFHttps)

+ (void)load {
    Class myClass = [self class];

    // 获取SEL
    SEL originSetImageSel = @selector(sd_setImageWithURL:placeholderImage:options:progress:completed:);
    SEL newSetImageSel = @selector(sd_setHttpsImageWithURL:placeholderImage:options:progress:completed:);

    // 生成Method
    Method originMethod = class_getInstanceMethod(myClass, originSetImageSel);
    Method newMethod = class_getInstanceMethod(myClass, newSetImageSel);

    // 交换方法实现
    method_exchangeImplementations(originMethod, newMethod);
}

- (void)sd_setHttpsImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletionBlock)completedBlock {
    NSLog(@"这里实现了");

    [self sd_setHttpsImageWithURL:url placeholderImage:placeholder options:SDWebImageAllowInvalidSSLCertificates progress:progressBlock completed:completedBlock];
}

@end