Question

我是.Net软件开发人员。我为用户验证创建了一个WCF Rest API以下是它的签名。

[OperationContract]
    [WebInvoke(RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Bare,
        UriTemplate = "/Validate", Method = "POST")]
    UserListResponse ValidateUser(Login obj);

在fiddler中使用以下Request Body

工作正常

{"Username":"admin",Password:"111"}

我的问题是，无法使用http post方法从Iphone访问它，但它在Android Http post方法中工作正常。

以下是我的代码：

NSError *theError = nil;

NSArray *keys = [NSArray arrayWithObjects:@"Username", @"Password", nil];

NSArray *objects = [NSArray arrayWithObjects:@"admin", @"111", nil];

NSDictionary *jsonDictionary = [NSDictionary dictionaryWithObjects:objects forKeys:keys];

NSString *myJSONString =[jsonDictionary JSONRepresentation];

NSData *myJSONData =[myJSONString dataUsingEncoding:NSUTF8StringEncoding];

NSLog(@"myJSONString :%@", myJSONString); 

NSLog(@"myJSONData :%@", myJSONData); 

NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:@"http://192.168.1.192/ShopMonkeyService/ShopMonkey.svc/Validate"]];

[request setHTTPBody:myJSONData]; 

[request setHTTPMethod:@"POST"];

NSURLResponse *theResponse =[[NSURLResponse alloc]init];

NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&theResponse error:&theError];   

NSLog(@"response : %@", theResponse);

NSLog(@"error : %@", theError);

NSLog(@"data : %@", data);

NSMutableString *string = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

NSLog(@"string: %@", string);

NSDictionary *jsonDictionaryResponse = [string JSONValue];

NSLog(@"dic: %@", jsonDictionaryResponse);

以下是我的回复错误：

2012-07-06 11：49：04.201 ShopMonkey [524：207] -JSONRepresentation   失败。错误跟踪是：（null）

2012-07-06 11：49：04.201 ShopMonkey [524：207] myJSONString   ：{ “密码”： “111”， “用户名”： “管理员”}

2012-07-06 11：49：04.201 ShopMonkey [524：207] myJSONData：＆lt; 7b225061   7373776f 7264223a 22313131 222c2255 7365726e 616d6522 3a226164   6d696e22 7d＆gt;

2012-07-06 11:51:13.312 ShopMonkey [524：207]回复：（null）

2012-07-06 11:51:13.312 ShopMonkey [524：207]错误：错误   Domain = NSURLErrorDomain Code = -1005“网络连接丢失。”   的UserInfo = 0x6041370   {NSErrorFailingURLStringKey = HTTP：//192.168.1.192/ShopMonkeyService/ShopMonkey.svc/Validate，   NSErrorFailingURLKey = HTTP：//192.168.1.192/ShopMonkeyService/ShopMonkey.svc/Validate，   NSLocalizedDescription =网络连接丢失。，   NSUnderlyingError = 0x6043a90“网络连接丢失。”}

2012-07-06 11:51:13.312 ShopMonkey [524：207]数据：（null）

2012-07-06 11:51:13.313 ShopMonkey [524：207]字符串：

2012-07-06 11:51:13.313 ShopMonkey [524：207] -JSONValue失败。错误   追踪是:(
"Error Domain=org.brautaset.JSON.ErrorDomain Code=11 \"Unexpected end of string\" UserInfo=0x6041b90 {NSLocalizedDescription=Unexpected
字符串结尾}“

）

2012-07-06 11:51:13.313 ShopMonkey [524：207] dic：（null）

任何人都可以指出我出了什么问题。

提前致谢维杰

查看我的错误详情vivek

错误详情：

2012-07-06 16：54：37.416 ShopMonkey [1895：40b] - [CJSONSerializer serializeDictionary：]：无法识别的选择器发送到实例0x4c03740

2012-07-06 16：54：37.417 ShopMonkey [1895：40b] * 由于未捕获的异常'NSInvalidArgumentException'而终止应用程序，原因：' - [CJSONSerializer serializeDictionary：]：无法识别的选择器已发送例如0x4c03740'

* 首次调用堆栈：

（

0 CoreFoundation 0x00ec2be9 __exceptionPreprocess + 185

1 libobjc.A.dylib 0x010175c2 objc_exception_throw + 47

2 CoreFoundation 0x00ec46fb - [NSObject（NSObject）doesNotRecognizeSelector：] + 187

3 CoreFoundation 0x00e34366 转发 + 966

4 CoreFoundation 0x00e33f22 _CF_forwarding_prep_0 + 50

5 ShopMonkey 0x000030c5 - [ShopMonkeyViewController signinbtnclick] + 425

6 UIKit 0x0034fa6e - [UIApplication sendAction：to：from：forEvent：] + 119

7 UIKit 0x003de1b5 - [UIControl sendAction：to：forEvent：] + 67

8 UIKit 0x003e0647 - [UIControl（内部）_sendActionsForEvents：withEvent：] + 527

9 UIKit 0x003df1f4 - [UIControl touchesEnded：withEvent：] + 458

10 UIKit 0x003740d1 - [UIWindow _sendTouchesForEvent：] + 567

11 UIKit 0x0035537a - [UIApplication sendEvent：] + 447

12 UIKit 0x0035a732 _UIApplicationHandleEvent + 7576

13 GraphicsServices 0x0177ca36 PurpleEventCallback + 1550

14 CoreFoundation 0x00ea4064 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION + 52

15 CoreFoundation 0x00e046f7 __CFRunLoopDoSource1 + 215

16 CoreFoundation 0x00e01983 __CFRunLoopRun + 979

17 CoreFoundation 0x00e01240 CFRunLoopRunSpecific + 208

18 CoreFoundation 0x00e01161 CFRunLoopRunInMode + 97

19 GraphicsServices 0x0177b268 GSEventRunModal + 217

20 GraphicsServices 0x0177b32d GSEventRun + 115

21 UIKit 0x0035e42e UIApplicationMain + 1160

22 ShopMonkey 0x000026d8 main + 102

23 ShopMonkey 0x00002669 start + 53

）

在抛出'NSException'实例后终止调用

Answer 1

 NSURL *url = [NSURL URLWithString:@"http://alkjdlkjaflkdjflakjdf"];

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url
                                                       cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:30.0];

NSString *req;

    req = [NSString stringWithFormat:@"username=%@&pass=%@",userName,Password];

[request setHTTPMethod:@"POST"];
[request setHTTPBody: [req dataUsingEncoding:NSISOLatin1StringEncoding]];
NSURLConnection *connection = [[NSURLConnection alloc]initWithRequest:request delegate:self];
[connection start];

if (connection) {
    receivedData = [[NSMutableData alloc]initWithLength:0]; // an ivar of type NSMutableData
} else {

    UIAlertView *failAlert = [[UIAlertView alloc]initWithTitle:@"" message:@"Could Not Connect" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
    [failAlert show];
}

现在使用以下代理来处理请求

-(void)connection:(NSURLConnection*)connection didReceiveData:(NSData *)data
{

    [receivedData appendData:data];

}


- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error{

receivedData = nil;

UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"" message:[NSString stringWithFormat:@"%@",error.localizedDescription] delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
[alert show];
}

- (void)connectionDidFinishLoading:(NSURLConnection *)connection{

    [self performSelector:@selector(getData:) withObject:receivedData afterDelay:0];

}

现在你必须解析上面调用的getData函数中的数据

-(void)getData:(NSData*)response{
NSError *erro;

SBJSON *parse                               =           [[SBJSON alloc]init]; 
// have to include SBJSON lib else you can use the inbuild NSJSONSerialization

NSString *jsonString                        =           [[NSString alloc] initWithData:response
                                                                              encoding:NSUTF8StringEncoding]; 

NSDictionary *jsonData                      =           [parse objectWithString:jsonString error:&erro];
NSArray *allEvents                          =           [jsonData objectForKey:@"Your_OBJECT"];

  if(![allEvents isKindOfClass:[NSNull class]] && [allEvents count] > 0)
  {

 // now do what you want with the data   

  }
}

Answer 2

对于通过JSON传递值的Key，你应该朝着这个方向前进..

    NSArray *keys = [NSArray arrayWithObjects:@"username", @"password", @"preference", @"uid", nil];
NSArray *objects = [NSArray arrayWithObjects:@"accuser", @"accpass", @"abc_region", @"100", nil];
NSDictionary *theRequestDictionary = [NSDictionary dictionaryWithObjects:objects forKeys:keys];

NSURL *theURL = [NSURL URLWithString:@"http://url.com/request.php"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:theURL cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:10.0f];
[theRequest setHTTPMethod:@"POST"];

[theRequest setValue:@"application/json-rpc" forHTTPHeaderField:@"Content-Type"];
NSString *theBodyString = [[CJSONSerializer serializer] serializeDictionary:theRequestDictionary];
NSLog(@"%@", theBodyString);
NSData *theBodyData = [theBodyString dataUsingEncoding:NSUTF8StringEncoding];
// NSLog(@"%@", theBodyData);
[theRequest setHTTPBody:theBodyData];

NSURLResponse *theResponse = NULL;
NSError *theError = NULL;
NSData *theResponseData = [NSURLConnection sendSynchronousRequest:theRequest returningResponse:&theResponse error:&theError];
NSString *theResponseString = [[[NSString alloc] initWithData:theResponseData encoding:NSUTF8StringEncoding] autorelease];
NSLog(theResponseString);
NSDictionary *theResponseDictionary = [[CJSONDeserializer deserializer] deserialize:theResponseString];
NSLog(@"%@", theResponseDictionary);
NSString *theGreeting = [theResponseDictionary objectForKey:@"greeting"];
[self setValue:theGreeting forKey:@"greeting"];

请检查.. 还有一件事你会从这里找到这个文件 CJSONSerializer CJSONSerializer file path

.................

无法从Iphone制作Json Request正文

2 个答案: