使用 RESTKIT 0.20 映射未命名值的 JSON 数组 [英] Mapping a JSON array of unnamed values with RESTKIT 0.20

问题描述

当我配置从 REST 服务返回 JSON 到对象的映射时，我通常这样做:

When I configure mapping from a REST service returning JSON to a object, I normally do this:

RKObjectMapping *myMapping = [RKObjectMapping mappingForClass:[MyClass class]];
[myMapping addAttributeMappingsFromDictionary:@{@"Address" : @"address", @"City" : @"city"}];

这对于具有命名属性的 JSON 非常有用，但是如何将以下 JSON 映射到具有属性name"的对象?

and this works great for JSON with named attributes, but how do I map the following JSON to a object with the property "name"?

["My Value","Some other value","More stuff","Hello World"]

这个 JSON 只是一个值数组，没有名称/键值.如何使用 RESTKIT 0.20 将其映射到对象?

This JSON is just a array of values and has not name/key only values. How do I map this to a object with RESTKIT 0.20?

谢谢
索伦

推荐答案

方括号中的这个表达式是一个 json 数组:http://www.json.org.如果查看主页上的语法树，可以考虑，每个json数组都是一个带有名称的变量"的值.这意味着您的表达式必须如下所示，才能成为有效的 json:

This expression in square brackets is a json array: http://www.json.org. If you look on the syntax tree on the home page, you can consider, every json array is a value of a "variable" with a name. It means your expression has to look like this, to be a valid json:

{ "myArray": ["My Value","Some other value","More stuff","Hello World"] }

然后像往常一样映射它:

and you map it like you always do:

[myMapping addAttributeMappingsFromDictionary:@{@"myArray" : @"myArray"}];

您在映射目标类中的参数MyArray 则具有NSArray 的类型.

Your parameter MyArray in mapping target class has then a type of NSArray.

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