objective-c - AFNetworking 无线访问正常 蜂窝数据访问出错

Question

1. 描述你的问题
   AFNetworking 无线访问正常 蜂窝数据访问出错 报 -1012

2. 贴上相关代码

3. 贴上报错信息
   Error Domain=NSURLErrorDomain Code=-1012 "未能完成操作。（“NSURLErrorDomain”错误 -1012。）" UserInfo=0x175d6c00

4. 贴上相关截图

1. 已经尝试过哪些方法仍然没解决（附上相关链接）

Answer 1

This has nothing to do with AFNetworking, code=-1012 is the NSURLError error message provided by the system. There is a comparison table http://blog.csdn.net/yesjava/article/details/8056681.
NSURLErrorUserCancelledAuthentication = -1012. User cancels verification.
You will know the reason after searching.

Answer 2

1. The DNS servers for wireless access and cellular access are different. Looking at the error message, the server you accessed has SSL enabled and uses a self-generated certificate.
2. I have not encountered similar problems with AFNetworking 2.x. .x version:
2.1 Code modification:

//使用默认的security policy, 注释掉类似代码：
//sessionMgr.securityPolicy = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeNone];
//以下和AFNetworking 2.x相同
sessionMgr.securityPolicy.allowInvalidCertificates = YES;
//以下是AFNetworking 3.x 下需要的
sessionMgr.securityPolicy.validatesDomainName = NO;

2.2 Info.plist Join ATS:

<key>NSAppTransportSecurity</key>
<dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
</dict>

3. Code example:

//#自生成证书

-(IBAction)clickOnSSLWithJSON:(id)sender {
    NSLog(@"ssl with json");
    
    NSURL *url = [NSURL URLWithString:@"https://192.168.1.6:3000"];
    AFHTTPSessionManager *sessionMgr=[[AFHTTPSessionManager alloc]initWithBaseURL:url];
    sessionMgr.responseSerializer = [AFHTTPResponseSerializer serializer];
 
    sessionMgr.responseSerializer.acceptableContentTypes = [[NSSet alloc] initWithObjects:@"text/html",nil];
    //in this case, Info.plist should be added with keys 'NSAppTransportPolicy' and 'NSAllowsArbitraryLoads',
    //and security policy  should be used with default.
    //following setting is same as AFNetworking 2.x
    sessionMgr.securityPolicy.allowInvalidCertificates = YES;
    //following setting is specified for AFNetworking 3.x
    sessionMgr.securityPolicy.validatesDomainName = NO;
    [sessionMgr GET:@"" parameters:nil progress:nil
            success: ^(NSURLSessionDataTask * _Nonnull task, id _Nullable result){
                //NSUTF8StringEncoding should be encoded for response data.
                NSLog(@"ok:\n%@",[[NSString alloc]initWithData:result encoding:NSUTF8StringEncoding]);
            }
            failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error)
            {
                NSLog(@"error:\n%@",error);
            }];
}