iOS调用Web服务不';我不能在4g上工作
我正在编写一个调用JSON web服务的应用程序。当iPhone连接到WiFi网络时,它可以正常工作。但是,当它使用蜂窝数据网络时,它不起作用。我从[NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error]返回了一个错误。这是我的密码:iOS调用Web服务不';我不能在4g上工作,ios,json,web-services,4g,Ios,Json,Web Services,4g,我正在编写一个调用JSON web服务的应用程序。当iPhone连接到WiFi网络时,它可以正常工作。但是,当它使用蜂窝数据网络时,它不起作用。我从[NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error]返回了一个错误。这是我的密码: -(BOOL) CallService { NSError *error; NSData *paramData = [NSJSONSerializa
-(BOOL) CallService {
NSError *error;
NSData *paramData = [NSJSONSerialization dataWithJSONObject:self.parameter options:kNilOptions error:&error];
NSString *serviceUrl = [[NSString alloc] initWithFormat:@"%@%@", self.webHost, self.serviceName];
NSURL *url = [NSURL URLWithString:serviceUrl];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:@"POST"];
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[request setValue:@"json" forHTTPHeaderField:@"Data-Type"];
[request setValue:[NSString stringWithFormat:@"%d", [paramData length]] forHTTPHeaderField:@"Content-Length"];
[request setHTTPBody:paramData];
NSError *errorReturned = nil;
NSURLResponse *theResponse =[[NSURLResponse alloc]init];
NSData *data = [NSURLConnection sendSynchronousRequest:request
returningResponse:&theResponse
error:&errorReturned];
BOOL retVal = FALSE;
if (errorReturned){
//...handle the error
NSLog(@"%@", errorReturned.description);
}
else {
self.serviceResult = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSLog(@"%@", error);
retVal = (BOOL)[self.serviceResult objectForKey:@"Success"];
}
return retVal;
}
返回的错误是:
purgeIdleCellConnections: found one to purge conn = 0x1d04d710
2012-11-07 20:17:43.776 iPressBoxx-iPhone[733:907]
Error Domain=NSCocoaErrorDomain
Code=3840 "The operation couldn’t be completed. (Cocoa error 3840.)"
(JSON text did not start with array or object and option to allow fragments not set.)
UserInfo=0x1d04eff0 {NSDebugDescription=JSON text did not start with array or object and option to allow fragments not set.}
在我看来,这就像是JSON编码的数据,或者是结果混淆了
这里最好的办法是打印出所有原始数据,或者使用类似Charles Proxy()的东西来截获网络请求并查看发生了什么 返回的响应是什么?您有什么解决方案吗?