如何处理网络数据请求显示非法连接无法访问

        AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

            manager.requestSerializer.timeoutInterval = 60;

            manager.requestSerializer = [AFHTTPRequestSerializer serializer];

            manager.responseSerializer = [AFHTTPResponseSerializer serializer];

            AFSecurityPolicy *securityPolicy=[AFSecurityPolicy defaultPolicy];

            // 客户端是否信任非法证书

            securityPolicy.allowInvalidCertificates = YES;

            // 是否在证书域字段中验证域名

            securityPolicy.validatesDomainName = NO;

            manager.securityPolicy = securityPolicy;