这是我的代码:
在我的.m
NSArray *keys = [NSArray arrayWithObjects:@"Training_Code", @"Training_Duration",@"Training_Startdate",@"Training_Enddate",@"Trainer_ID",@"Training_Location",@"Comments",@"Keyword",@"NumberofDays", nil];
NSArray *objects = [NSArray arrayWithObjects:@"Training_Code", @"Training_Duration",@"Training_Startdate",@"Training_Enddate",@"Trainer_ID",@"Training_Location",@"Comments",@"Keyword",@"NumberofDays", nil];
NSData *jsonData;
NSString *jsonString;
NSDictionary *jsonDictionary = [NSDictionary dictionaryWithObjects:objects forKeys:keys];
if([NSJSONSerialization isValidJSONObject:jsonDictionary])
{
jsonData = [NSJSONSerialization dataWithJSONObject:jsonDictionary options:0 error:nil];
jsonString = [[NSString alloc]initWithData:jsonData encoding:NSUTF8StringEncoding];
}
// Be sure to properly escape your url string.
NSURL *url1 = [NSURL URLWithString:@"http://xx.xx.xx.xxx/DeployiOSCalender/service1.asmx"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url1];
[request setHTTPMethod:@"POST"];
[request setHTTPBody: jsonData];
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[request setValue:[NSString stringWithFormat:@"%d", [jsonData length]] forHTTPHeaderField:@"Content-Length"];
NSError *errorReturned = nil;
NSURLResponse *theResponse =[[NSURLResponse alloc]init];
NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&theResponse error:&errorReturned];
if (errorReturned) {
// Handle error.
}
else
{
NSError *jsonParsingError = nil;
NSArray *jsonArray = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers|NSJSONReadingAllowFragments error:&jsonParsingError];
}
这会将数据返回为:
{
d = "[{\"Training_Code\":\"1234 \",\"Training_Duration\":\"2hrs \",\"Training_Startdate\":\"14/02/2013 15:00:00\",\"Training_Enddate\":\"14/02/2013 17:00:00\",\"Trainer_ID\":1,\"Training_Location\":\"B-Wing Training room-4\",\"Comments\":\"C# training\",\"Keyword\":\"C#1234\",\"NumberofDays\":1},{\"Training_Code\":\"4321 \",\"Training_Duration\":\"16 \",\"Training_Startdate\":\"17/02/2013 10:30:00\",\"Training_Enddate\":\"17/02/2013 17:30:00\",\"Trainer_ID\":2,\"Training_Location\":\"A-Wing Training Room-6\",\"Comments\":\"Objective-C\",\"Keyword\":\"Obj-C4321\",\"NumberofDays\":2}]";
}
格式不正确。 我想这样做:
[{"Training_Code":"1234 ","Training_Duration":"2hrs ","Training_Startdate":"14/02/2013 15:00:00","Training_Enddate":"14/02/2013 17:00:00","Trainer_ID":1,"Training_Location":"B-Wing Training room-4","Comments":"C# training","Keyword":"C#1234","NumberofDays":1},{"Training_Code":"4321 ","Training_Duration":"16 ","Training_Startdate":"17/02/2013 10:30:00","Training_Enddate":"17/02/2013 17:30:00","Trainer_ID":2,"Training_Location":"A-Wing Training Room-6","Comments":"Objective-C","Keyword":"Obj-C4321","NumberofDays":2}
注意:我的Web服务正在返回正确的json格式。
我需要做些什么才能实现这一点。请建议。
答案 0 :(得分:2)
您说您的网络服务正在返回正确的JSON,但显然它不是。您应该与您的Web服务开发人员交谈,并找出他们返回格式错误的JSON的原因。简单地说,从Web服务中获取的内容无法解析为JSON - 除非您进行字符串提取(ugh)。
考虑您的回复数据,格式更好:
{
d = "
[
{
\"Training_Code\":\"1234 \",
\"Training_Duration\":\"2hrs \",
\"Training_Startdate\":\"14/02/2013 15:00:00\",
\"Training_Enddate\":\"14/02/2013 17:00:00\",
\"Trainer_ID\":1,
\"Training_Location\":\"B-Wing Training room-4\",
\"Comments\":\"C# training\",
\"Keyword\":\"C#1234\",
\"NumberofDays\":1
},
{
\"Training_Code\":\"4321 \",
\"Training_Duration\":\"16 \",
\"Training_Startdate\":\"17/02/2013 10:30:00\",
\"Training_Enddate\":\"17/02/2013 17:30:00\",
\"Trainer_ID\":2,
\"Training_Location\":\"A-Wing Training Room-6\",
\"Comments\":\"Objective-C\",
\"Keyword\":\"Obj-C4321\",
\"NumberofDays\":2
}
]
";
}
首先,将数据响应转换为字符串:
NSString *json = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
然后你需要将它从顶部剥离:
{
d = "
这是从底部
";
}
然后,您可以使用以下代码替换所有转义的引号:
json = [json stringByReplacingOccurrencesOfString:@"\\\"" withString:@"\""];
此时,您的字符串应该是可解析的JSON,如下所示:
[
{
"Training_Code":"1234 ",
"Training_Duration":"2hrs ",
"Training_Startdate":"14/02/2013 15:00:00",
"Training_Enddate":"14/02/2013 17:00:00",
"Trainer_ID":1,
"Training_Location":"B-Wing Training room-4",
"Comments":"C# training",
"Keyword":"C#1234",
"NumberofDays":1
},
{
"Training_Code":"4321 ",
"Training_Duration":"16 ",
"Training_Startdate":"17/02/2013 10:30:00",
"Training_Enddate":"17/02/2013 17:30:00",
"Trainer_ID":2,
"Training_Location":"A-Wing Training Room-6",
"Comments":"Objective-C",
"Keyword":"Obj-C4321",
"NumberofDays":2
}
]
所以你可以这样做:
id object = [NSJSONSerialization JSONObjectWithData:[json dataUsingEncoding:NSUTF8StringEncoding] options:0 error:&error];
现在object
应该将包含两个记录的数组作为词典。
如果是我,我会回到网络服务开发人员并要求他们修复他们发送给你的回复。你不应该处理所有这些字符串提取废话。
答案 1 :(得分:0)
Trainer_ID和NumberofDays是原始的。你不能按原样添加到NSArray中。你应该把它们包装成NSNumber:
NSArray *objects = [NSArray arrayWithObjects:Training_Code, Training_Duration,Training_Startdate,Training_Enddate,[NSNumber numberWithInt:Trainer_ID],Training_Location,Comments,Keyword,[NSNumber numberWithInt:NumberofDays], nil];