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iphone - ASIFormDataRequest NSInvalidArgumentException 异常

转载 作者:行者123 更新时间:2023-11-28 23:15:44 27 4
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我正在尝试通过以下代码使用 ASIFormDataRequest:

NSURL *url = [NSURL URLWithString: urlString];
ASIFormDataRequest *request = [ASIHTTPRequest requestWithURL:url];
[request addPostValue:@"json" forKey:@"json"];
[request setDelegate:self];
[request startAsynchronous];

代码一直在 [request addPostValue:@"json"forKey:@"json"]; 行崩溃。我也试过 setPostValue:forKey: 结果相同。如果我注释掉 addPostValue:forKey: 行,请求就会通过(我可以在服务器上看到它),但是当然没有 json 数据。

我通过传入字符串 json 作为值来简化问题。一旦我弄清楚这个问题,那实际上就是我的 json 格式的字符串。

这是堆栈跟踪:

2011-06-28 08:49:29.344 Gleek[26170:207] *** Terminating app due to uncaught     exception     'NSInvalidArgumentException', reason: '-[ASIHTTPRequest addPostValue:forKey:]: unrecognized     selector sent to instance 0x5024400'
*** Call stack at first throw:
(
0 CoreFoundation 0x010f85a9 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x0124c313 objc_exception_throw + 44
2 CoreFoundation 0x010fa0bb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
3 CoreFoundation 0x01069966 ___forwarding___ + 966
4 CoreFoundation 0x01069522 _CF_forwarding_prep_0 + 50
5 Gleek 0x00006bab -[ProcedureDefDetailViewController toggleCompletedStatus:] + 1451
6 UIKit 0x005e44fd -[UIApplication sendAction:to:from:forEvent:] + 119
7 UIKit 0x00674799 -[UIControl sendAction:to:forEvent:] + 67
8 UIKit 0x00676c2b -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 527
9 UIKit 0x006757d8 -[UIControl touchesEnded:withEvent:] + 458
10 UIKit 0x00608ded -[UIWindow _sendTouchesForEvent:] + 567
11 UIKit 0x005e9c37 -[UIApplication sendEvent:] + 447
12 UIKit 0x005eef2e _UIApplicationHandleEvent + 7576
13 GraphicsServices 0x018b6992 PurpleEventCallback + 1550
14 CoreFoundation 0x010d9944 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
15 CoreFoundation 0x01039cf7 __CFRunLoopDoSource1 + 215
16 CoreFoundation 0x01036f83 __CFRunLoopRun + 979
17 CoreFoundation 0x01036840 CFRunLoopRunSpecific + 208
18 CoreFoundation 0x01036761 CFRunLoopRunInMode + 97
19 GraphicsServices 0x018b51c4 GSEventRunModal + 217
20 GraphicsServices 0x018b5289 GSEventRun + 115
21 UIKit 0x005f2c93 UIApplicationMain + 1160
22 Gleek 0x00002a09 main + 121
23 Gleek 0x00002985 start + 53
24 ??? 0x00000001 0x0 + 1
)

谢谢

最佳答案

答案很简单,你必须使用:

ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];

而你正在使用,

ASIFormDataRequest *request = [ASIHTTPRequest requestWithURL:url];

只要改变它,它就会起作用。

始终确保使用正确的类构造函数初始化对象。

关于iphone - ASIFormDataRequest NSInvalidArgumentException 异常,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/6509358/

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