加载一个简单的数组
我在我的iPhone应用程序中使用RestKit来加载国家列表。 问题是elementToPropertyMappings方法使用字典映射每个对象。 在我的情况下,我有一个字符串数组,我想映射到Country Country类的name属性。
有人知道怎么做吗?
elementToPropertyMappings
必须返回包含从JSON元素名称到属性访问器的映射的字典
我的JSON数据
["Argentina","Australia","Austria","Belgium","Bolivia","Brazil","Bulgaria","Canada","Cayman Islands","China","Costa Rica","Croatia","Czech Republic","Denmark","Ecuador","Ethiopia","F.Y.R.O. Macedonia","Finland","France","French Polynesia","Germany","Guam","Hong Kong SAR","Indonesia","Ireland","Israel","Italy","Japan","Latvia","Lithuania","Luxembourg","Malaysia","Malta","Mexico","Morocco","Netherlands","New Zealand","Nicaragua","Norway","Papua New Guinea","Peru","Poland","Portugal","Puerto Rico","Qatar","Romania","Russia","Singapore","Slovakia","Slovenia","South Africa","South Korea","Spain","Sweden","Switzerland","Taiwan","United Arab Emirates","United Kingdom","United States","Venezuela","Vietnam"]
更新:
我想出了如何使用RKClient发出请求,以便跳过映射功能。 现在我需要弄清楚什么类用于JSON解析。 yajl-objc解析器看起来不错,但我不想包含另一个解析器,如果它可以用RestKit中的一个库来完成的话。
-(void)loadLocations
{
NSLog(@"loadLocations");
RKObjectManager *objectManager = [RKObjectManager sharedManager];
[[RKClient sharedClient] get:@"/locations/countries.json" delegate:self];
}
- (void)request:(RKRequest*)request didLoadResponse:(RKResponse*)response {
NSLog(@"Loaded payload: %@", [response bodyAsString]);
// HOW CAN I PARSE THIS STRING INTO AN NSArray?
}
搞清楚RKJSONParser的正确导入对我来说是最具挑战性的事情。
如果有另一种方法可以通过Mapping类完成,请告诉我。
这里是加载一个简单数组所涉及的代码。
#import <RestKit/Support/RKJSONParser.h>
@implementation CountriesViewController
@synthesize countries;
-(void)loadLocations
{
NSLog(@"loadLocations");
[[RKClient sharedClient] get:@"/locations/countries.json" delegate:self];
}
- (void)request:(RKRequest*)request didLoadResponse:(RKResponse*)response {
NSLog(@"Loaded payload: %@", [response bodyAsString]);
RKJSONParser* parser = [RKJSONParser new];
countries = [parser objectFromString:[response bodyAsString]];
}
对v0.10:Source添加了对字符串数组的支持
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