将NSData转换为NSString-NSLog限制 [英] Convert NSData to NSString - NSLog limitation
问题描述
我正在尝试在Zendesk中将 NSData 转换为 NSString ，但是得到的字符串不完整，至少无法完全解码数据。
I'm trying to convert NSData to NSString in Zendesk but am getting a incomplete string, or at least not able to fully decode the data.
当我 curl 以下命令：
curl https://mySubdomain.zendesk.com/api/v2/users/1038194884/tickets/requested.json -v -u myLogin:myPassword
我得到正确的响应，并且列出了所有
I get the correct response and it list all the tickets of this user, the response is as follows:
< HTTP / 1.1 200 OK<服务器：nginx<日期：2017年1月28日，星期六19:50:16
GMT<内容类型：application / json; charset = UTF-8<
内容长度：12576<连接：保持活动<
X-Zendesk-API-Version：v2< X-Zendesk-Application-Version：v8.28<
X框架选项：SAMEORIGIN< X速率限制：400<
X-Rate-Limit-Remaining：399<严格的运输安全性：
max-age = 31536000; <与X-UA兼容：IE = Edge，chrome = 1< ETag：
98b10cfcb2f1577122a1662926f9565c<缓存控制：必须重新验证，
私有，max-age = 0< X-Zendesk-起源服务器：
app2.pod7.fra1.zdsys.com< X-Request-Id：
db8b90fd-e3a3-452d-c5ea-ecf4bbd76e89< X运行时：0.303978<
X-Rack-Cache：miss< X-Zendesk-Request-Id：bdfd524aa5520cf39e57<
X-Content-Type-Options：nosniff
< HTTP/1.1 200 OK < Server: nginx < Date: Sat, 28 Jan 2017 19:50:16 GMT < Content-Type: application/json; charset=UTF-8 < Content-Length: 12576 < Connection: keep-alive < X-Zendesk-API-Version: v2 < X-Zendesk-Application-Version: v8.28 < X-Frame-Options: SAMEORIGIN < X-Rate-Limit: 400 < X-Rate-Limit-Remaining: 399 < Strict-Transport-Security: max-age=31536000; < X-UA-Compatible: IE=Edge,chrome=1 < ETag: "98b10cfcb2f1577122a1662926f9565c" < Cache-Control: must-revalidate, private, max-age=0 < X-Zendesk-Origin-Server: app2.pod7.fra1.zdsys.com < X-Request-Id: db8b90fd-e3a3-452d-c5ea-ecf4bbd76e89 < X-Runtime: 0.303978 < X-Rack-Cache: miss < X-Zendesk-Request-Id: bdfd524aa5520cf39e57 < X-Content-Type-Options: nosniff
当我尝试在 iOS 应用程序，响应几乎相同，如下所示：
When I try to to the same thing in objective-C, from iOS app, the response is pretty much the same, as follows:
Cache-Control =必须重新验证，私有，最大年龄= 0;
Connection =保持活动;
Content-Encoding = gzip;
Content-Type =应用程序/ json; charset = UTF-8;
Date = 2017年1月28日星期六20:36:38 GMT;
Etag = \ 98b10cfcb2f1577122a1662926f9565c\;
服务器= nginx;
Strict-Transport-Security =最大年龄= 31536000;;
Transfer-Encoding =身份；
X-Content-Type-Options = nosniff;
X-Frame-Options = SAMEORIGIN;
X-Rack-Cache =未命中；
X-Rate-Limit = 400;
剩余X费率上限 = 399；
X-Request-Id = 53c1b462-2dec-4c46-cc60-ecf4bbd76e89；
X-Runtime = 0.209525;
X-UA-Compatible = IE = Edge，chrome = 1;
X-Zendesk-API-Version = v2;
X-Zendesk-Application-Version = v8.28;
X-Zendesk-Origin-Server = app4.pod7.fra1.zdsys.com;
X-Zendesk-Request-Id = 675ae5b4ff78fbe7
"Cache-Control" = "must-revalidate, private, max-age=0"; Connection = "keep-alive"; "Content-Encoding" = gzip; "Content-Type" = "application/json; charset=UTF-8"; Date = "Sat, 28 Jan 2017 20:36:38 GMT"; Etag = "\"98b10cfcb2f1577122a1662926f9565c\""; Server = nginx; "Strict-Transport-Security" = "max-age=31536000;"; "Transfer-Encoding" = Identity; "X-Content-Type-Options" = nosniff; "X-Frame-Options" = SAMEORIGIN; "X-Rack-Cache" = miss; "X-Rate-Limit" = 400; "X-Rate-Limit-Remaining" = 399; "X-Request-Id" = "53c1b462-2dec-4c46-cc60-ecf4bbd76e89"; "X-Runtime" = "0.209525"; "X-UA-Compatible" = "IE=Edge,chrome=1"; "X-Zendesk-API-Version" = v2; "X-Zendesk-Application-Version" = "v8.28"; "X-Zendesk-Origin-Server" = "app4.pod7.fra1.zdsys.com"; "X-Zendesk-Request-Id" = 675ae5b4ff78fbe7
问题是我试图转换 data 到 dictionary 或 NSString ，我得到的字符串。这是我正在使用的代码：
The problem is that wen I try to convert the data to a dictionary or NSString, I get incomplete string. This is the code I'm using:
NSString *urlUser = [NSString stringWithFormat:@"https://mySubdomain.zendesk.com/api/v2/users/1038194884/tickets/requested.json"];
NSURL *url = [[NSURL alloc] initWithString:urlUser];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request addValue : @"application/json"
forHTTPHeaderField : @"Content-Type" ];
NSString *authStr = @"username:password";
NSData *authData = [authStr dataUsingEncoding:NSUTF8StringEncoding];
NSString *authValue = [NSString stringWithFormat: @"Basic %@",[authData base64EncodedStringWithOptions:0]];
[request setValue:authValue forHTTPHeaderField:@"Authorization"];
NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *task = [session dataTaskWithRequest:request
completionHandler:
^(NSData *data, NSURLResponse *response, NSError *error) {
NSLog(@"finished");
if (!error)
{
NSLog(@"%@", data);
NSLog(@"RESPONSE: %@", response);
NSLog(@"length: %lu", data.length);
//Determine if string is null-terminated
char lastByte;
[data getBytes:&lastByte range:NSMakeRange([data length]-1, 1)];
NSString *str;
if (lastByte == 0x0) {
//string is null-terminated
str = [NSString stringWithUTF8String:[data bytes]];
} else {
//string is not null-terminated
str = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
}
NSLog(@"string length: %lu", str.length);
NSLog(@"%@", str);
NSLog(@"stop");
}
}];
[task resume];
BTW，数据的长度相同如 curl 响应中所示。
BTW, the data length is the same as in curl response.
记录的字符串：
{ tickets：[{ url ： https://mySubdomain.zendesk.com/api/v2/tickets/ 407.json ， id：407， external_id：null， via：{ channel： mobile_sdk， source：{ from：{}， to： {}， rel： mobile_sdk}}， created_at： 2017-01-26T10：48：28Z， updated_at： 2017-01-26T11：05：42Z， type：null ， subject：Comentário
sobreexercício。， raw_subject：Comentáriosobre
exercício。， description： Nome dousuário：bruna villete\nObjectId：
qHQzNbjUzy\nPlano：铁训练-巴西需执行的任务：
TnTitulo：CADEIRA EXTENSORA\nObjectId：qvq5deXxD9\nPerfil：MULHER
INICIANTE\nFrequência：5\ nPeríodo：Semana1\nSérie：意甲
B\nCOMENTÁRIO：
nbom， priority：null， status： solved， recipient：null， requester_id：1038194884， submitter_id：1038194884， assignee_id：3030446965， organization_id： null， group_id：24989965， collaborator_ids：[]， forum_topic_id：null， problem_id：null， has_incidents：false， is_public：true， due_at：null， tags：[ seriecomment]， custom_fields：[]， satisfaction_rating：null， sharing_agreement _
{"tickets":[{"url":"https://mySubdomain.zendesk.com/api/v2/tickets/407.json","id":407,"external_id":null,"via":{"channel":"mobile_sdk","source":{"from":{},"to":{},"rel":"mobile_sdk"}},"created_at":"2017-01-26T10:48:28Z","updated_at":"2017-01-26T11:05:42Z","type":null,"subject":"Comentário sobre exercício.","raw_subject":"Comentário sobre exercício.","description":"Nome do usuário: bruna villete\nObjectId: qHQzNbjUzy\nPlano: Iron Training - brazil\n\nDETALHES DO EXERCÍCIO: \nTitulo: CADEIRA EXTENSORA\nObjectId: qvq5deXxD9\nPerfil: MULHER INICIANTE\nFrequência: 5\nPeríodo: Semana1\nSérie: Serie B\n\nCOMENTÁRIO: \nbom","priority":null,"status":"solved","recipient":null,"requester_id":1038194884,"submitter_id":1038194884,"assignee_id":3030446965,"organization_id":null,"group_id":24989965,"collaborator_ids":[],"forum_topic_id":null,"problem_id":null,"has_incidents":false,"is_public":true,"due_at":null,"tags":["seriecomment"],"custom_fields":[],"satisfaction_rating":null,"sharing_agreement_
推荐答案
正如我在评论中告诉您的，它看起来像 NSLog 语句切断了字符串。一切都会按预期进行。
as I told you in the comments it looks like the NSLog statement cuts off the string. everything works as expected.
要处理您的数据，将其转换为json对象并像这样使用它：
to work with your data, convert it to a json object and use it like this:
// convert the response data to json
NSError *error = nil;
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:0 error:&error];
if (!error) {
NSLog(@"json parsing succeeded.");
}
// access your data
NSArray *tickets = json[@"tickets"];
这篇关于将NSData转换为NSString-NSLog限制的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
