如何在iOS中迭代JSON对象
问题描述：
我这样创建json对象
I create json object like this
id json = [NSJSONSerialization JSONObjectWithData:data
options:kNilOptions
error:&error];
id json = [NSJSONSerialization JSONObjectWithData:data
options:kNilOptions
error:&error];
但是该文档没有告诉我如何通过键和值来循环json对象.
But the document does not tell me how to loop the json object by keys and values.
答
这里是一种方法.如果您提出更具体的问题，我们将很乐意为您提供更多详细信息.
Here is one way to do it. I'll be happy to get into more details if you make your question more specific.
NSString *jsonString = @"[{\"id\": \"1\", \"name\":\"Aaa\"}, {\"id\": \"2\", \"name\":\"Bbb\"}]";
NSData *data = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
NSError *e = nil;
NSArray *jsArray = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:&e];
if (!jsArray) {
NSLog(@"Error parsing JSON: %@", e);
} else {
for(NSDictionary *item in jsArray) {
NSLog(@"Item: %@", item);
NSLog(@"%@",[item objectForKey:@"id"]);
NSLog(@"%@",[item objectForKey:@"name"]);
}
}