一、修改AFNetwoking源码

在AFSecurityPolicy 中修改evaluateServerTrust方法

二、在使用AFNetworking的时候添加代码

AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration：[NSURLSessionConfiguration defaultSessionConfiguration]];    

//忽略无效证书    

AFSecurityPolicy *securityPolicy = [AFSecurityPolicy defaultPolicy];    

securityPolicy.allowInvalidCertificates = YES;    

manager.securityPolicy = securityPolicy;