我在一个 iPhone 项目中使用了 Matt Gemmell 令人惊叹的 MGTwitterEngine，而我对 Obj-C 和 JSON 解析的不熟悉使得一项简单的工作看起来相当令人生畏。
我已阅读此链接，虽然它帮助我了解数据的结构，但我似乎仍然无法解析它。
如果我像这样对 getSearchResultsForQuery 的输出进行 NSLog：
NSLog(@"getSearchResultsForQuery: connectionIdentifier = %@", [myTwitterEngine getSearchResultsForQuery:@"#joke" sinceID:0 startingAtPage:1 count:5]);
我在控制台中得到了这个：
2009-12-05 00:14:46.518 Entendu[90565:207] getSearchResultsForQuery: connectionIdentifier = DED541CB-A3DA-4C04-8B23-ED20D13B147E
2009-12-05 00:14:46.843 Entendu[90565:207] Request succeeded for connectionIdentifier = DED541CB-A3DA-4C04-8B23-ED20D13B147E
2009-12-05 00:14:46.884 Entendu[90565:207] Got search results for DED541CB-A3DA-4C04-8B23-ED20D13B147E:
(
{
"created_at" = 1259989857;
"from_user" = royanramadhan;
"from_user_id" = 64716299;
geo = <null>;
id = 6361369664;
"iso_language_code" = sv;
"profile_image_url" = "http://a3.twimg.com/profile_images/455943541/Dup_01_Foto006_normal.jpg";
source = "<a href=\"http://m.twitter.com/\" rel=\"nofollow\">mobile web</a>";
"source_api_request_type" = 37;
text = "kenapa di keybord komputer tulisnya \"ENTER\" ? #joke";
"to_user_id" = <null>;
},
{
"created_at" = 1259988269;
"from_user" = alivenkickin;
"from_user_id" = 2547330;
geo = <null>;
id = 6360783744;
"iso_language_code" = en;
"profile_image_url" = "http://a3.twimg.com/profile_images/65068323/calvin_normal.jpg";
source = "<a href=\"http://www.tweetdeck.com/\" rel=\"nofollow\">TweetDeck</a>";
"source_api_request_type" = 37;
text = "RT @andycrash: A nice, calm and respectable lady went into the pharmacy...#joke http://bit.ly/BGDfJ";
"to_user_id" = <null>;
},
{
"created_at" = 1259988217;
"from_user" = lilbytes;
"from_user_id" = 18943691;
geo = <null>;
id = 6360764474;
"iso_language_code" = en;
"profile_image_url" = "http://a3.twimg.com/profile_images/477338701/twitterProfilePhoto_normal.jpg";
source = "<a href=\"http://twitter.com/\">web</a>";
"source_api_request_type" = 37;
text = "RT @Pyeman: LOL - Great post RT @cahlan: RT @jac_: Christmas light fun: http://bit.ly/828q7K #lol #funny #joke #christmas";
"to_user_id" = <null>;
},
{
"created_at" = 1259987890;
"from_user" = jscognam;
"from_user_id" = 41472147;
geo = <null>;
id = 6360648482;
"iso_language_code" = en;
"profile_image_url" = "http://a3.twimg.com/profile_images/432856397/AJ_normal.png";
source = "<a href=\"http://www.tweetdeck.com/\" rel=\"nofollow\">TweetDeck</a>";
"source_api_request_type" = 37;
text = "RT @jokestweet: Give me ambiguity or give me something else. #joke";
"to_user_id" = <null>;
},
{
"created_at" = 1259987587;
"from_user" = jokestweet;
"from_user_id" = 54008906;
geo = <null>;
id = 6360534281;
"iso_language_code" = en;
"profile_image_url" = "http://a1.twimg.com/profile_images/403925746/jokes_twitter_normal.jpg";
source = "<a href=\"http://twitter.com/\">web</a>";
"source_api_request_type" = 37;
text = "Give me ambiguity or give me something else. #joke";
"to_user_id" = <null>;
},
{
"created_at" = 1259987426;
"from_user" = RickyRicardoABN;
"from_user_id" = 79758746;
geo = <null>;
id = 6360472740;
"iso_language_code" = en;
"profile_image_url" = "http://a3.twimg.com/profile_images/554599647/l_92120d47e5744fee9da32c4ac71b9eee_normal.jpg";
source = "<a href=\"http://twitter.com/\">web</a>";
"source_api_request_type" = 37;
text = "#Why do people tell you when they are speechless? #joke";
"to_user_id" = <null>;
},
{
"created_at" = 1259984750;
"from_user" = socialEspeaking;
"from_user_id" = 80950838;
geo = <null>;
id = 6359413973;
"iso_language_code" = en;
"profile_image_url" = "http://a1.twimg.com/profile_images/542502866/jack_sm_normal.jpg";
source = "<a href=\"http://apiwiki.twitter.com/\" rel=\"nofollow\">API</a>";
"source_api_request_type" = 37;
text = "RT @andycrash A nice, calm and respectable lady went into the pharmacy...#joke http://x4.lol.0sp.in o_O";
"to_user_id" = <null>;
},
{
"created_at" = 1259984140;
"from_user" = oceanbutterfly7;
"from_user_id" = 70740820;
geo = <null>;
id = 6359164521;
"iso_language_code" = en;
"profile_image_url" = "http://a1.twimg.com/profile_images/558958306/Tiger-puppy_love_normal.jpg";
source = "<a href=\"/devices\" rel=\"nofollow\">txt</a>";
"source_api_request_type" = 37;
text = "@jokestweet: \" Hire a teenage while they still know everything,\" #joke";
"to_user" = jokestweet;
"to_user_id" = 54008906;
},
{
"created_at" = 1259983842;
"from_user" = "Fab_DTY";
"from_user_id" = 51115644;
geo = <null>;
id = 6359037805;
"iso_language_code" = en;
"profile_image_url" = "http://a3.twimg.com/profile_images/515204077/moto_0326_normal.jpeg";
source = "<a href=\"http://ubertwitter.com\" rel=\"nofollow\">UberTwitter</a>";
"source_api_request_type" = 37;
text = "RT @nutshellcards: Energizer Bunny arrested, charged with battery. lmao #Joke";
"to_user_id" = <null>;
},
{
"created_at" = 1259983640;
"from_user" = chunyip;
"from_user_id" = 1221169;
geo = <null>;
id = 6358953626;
"iso_language_code" = en;
"profile_image_url" = "http://s.twimg.com/a/1259808911/images/default_profile_6_normal.png";
source = "<a href=\"http://mobileways.de/gravity\" rel=\"nofollow\">Gravity</a>";
"source_api_request_type" = 37;
text = "RT @jokestweet: If electricity comes from electrons, does that mean that morality comes from morons? #joke";
"to_user_id" = <null>;
},
{
"created_at" = 1259983356;
"from_user" = nutshellcards;
"from_user_id" = 54486591;
geo = <null>;
id = 6358837191;
"iso_language_code" = en;
"profile_image_url" = "http://a3.twimg.com/profile_images/515618469/blue_normal.png";
source = "<a href=\"http://twitter.com/\">web</a>";
"source_api_request_type" = 37;
text = "Energizer Bunny arrested, charged with battery. lmao\n#Joke";
"to_user_id" = <null>;
},
{
"created_at" = 1259983222;
"from_user" = sagewhistler;
"from_user_id" = 3737203;
geo = <null>;
id = 6358780332;
"iso_language_code" = en;
"profile_image_url" = "http://a1.twimg.com/profile_images/552759084/cowboycig_normal.GIF";
source = "<a href=\"http://twitter.com/\">web</a>";
"source_api_request_type" = 37;
text = "#Joke \"What's the shotgun for?\" asks the homeowner. The bear remover replies, \"If the bear knocks me off the roof, shoot the dog.\" [end]";
"to_user_id" = <null>;
},
{
"created_at" = 1259983181;
"from_user" = sagewhistler;
"from_user_id" = 3737203;
geo = <null>;
id = 6358763080;
"iso_language_code" = en;
"profile_image_url" = "http://a1.twimg.com/profile_images/552759084/cowboycig_normal.GIF";
source = "<a href=\"http://twitter.com/\">web</a>";
"source_api_request_type" = 37;
text = "#Joke The bear will then be subdued enough for me to put him in the cage in the back of the van.\"He hands the shotgun to the homeowner...";
"to_user_id" = <null>;
},
{
"created_at" = 1259983144;
"from_user" = sagewhistler;
"from_user_id" = 3737203;
geo = <null>;
id = 6358748440;
"iso_language_code" = en;
"profile_image_url" = "http://a1.twimg.com/profile_images/552759084/cowboycig_normal.GIF";
source = "<a href=\"http://twitter.com/\">web</a>";
"source_api_request_type" = 37;
text = "#Joke When the bear falls off, the pit bull is trained to grab his testicles and not let go...";
"to_user_id" = <null>;
},
{
"created_at" = 1259983112;
"from_user" = sagewhistler;
"from_user_id" = 3737203;
geo = <null>;
id = 6358736099;
"iso_language_code" = en;
"profile_image_url" = "http://a1.twimg.com/profile_images/552759084/cowboycig_normal.GIF";
source = "<a href=\"http://twitter.com/\">web</a>";
"source_api_request_type" = 37;
text = "#Joke \"I'm going to put this ladder up against the roof, then I'm going to go up there & knock the bear off the roof with this baseball bat";
"to_user_id" = <null>;
},
{
"completed_in" = 0;
"max_id" = 6361369664;
"next_page" = "?page=2&max_id=6361369664&q=%23joke";
page = 1;
query = "%23joke";
"refresh_url" = "?since_id=6361369664&q=%23joke";
"results_per_page" = 15;
"since_id" = 0;
"source_api_request_type" = 37;
}
)
奇怪的是我有计数：5，但我得到了更多的结果。
对于实际的解析，我会将输出保存到一个 NSArray，然后是一个 NSDictionary，例如我可以使用 valueForKey:@"text" 进行查询吗？
我知道也调用了两个委托方法（requestSucceeded: 和 searchResultsReceived:forRequest:），但我不确定这会如何影响解析。
searchResultsReceived:forRequest: 的实际委托方法是：
- (void)searchResultsReceived:(NSArray *)searchResults forRequest:(NSString *)connectionIdentifier
{
NSLog(@"Got search results for %@:\r%@", connectionIdentifier, searchResults);
}
这表明结果实际上是由变量 searchResults 存储的。
不过，我如何获得单独的字符串？
谢谢您的帮助！