AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

1.設(shè)置返回數(shù)據(jù)接收的類型
AFURLResponseSerialization.m

- (instancetype)init {
    self = [super init];
    if (!self) {
        return nil;
    }
    //添加
    self.acceptableContentTypes = [NSSet setWithObjects:@"application/json", @"text/json", @"text/javascript", @"text/html", nil];

    return self;
}

2.請求限時

    manager.requestSerializer.timeoutInterval = 15;

3.打印URL

找到AFURLRequestSerialization這個.m
找到requestBySerializingRequest: withParameters: error:這個方法
NSLog(@"URL: %@",mutableRequest.URL.absoluteString);

afnetwoking 3.0 默認(rèn) response為json, request 為 serieror;所以不用設(shè)置了。

response 一般都設(shè)置成json，因為后臺返回數(shù)據(jù)為json。
request 一般不用設(shè)置，或設(shè)置成json，因為request不設(shè)置不報錯，上傳參數(shù)一般都是json格式

4.https
參考

    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
    manager.securityPolicy = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeCertificate];
    manager.securityPolicy.allowInvalidCertificates = YES;
    NSString *cerPath = [[NSBundle mainBundle] pathForResource:@"文件名" ofType:@"cer"];
    NSData *certData = [NSData dataWithContentsOfFile:cerPath];
    manager.securityPolicy.allowInvalidCertificates = YES;
    manager.securityPolicy.validatesDomainName = YES;
    manager.securityPolicy.pinnedCertificates = [NSSet setWithObjects:certData, nil];