Ios Restkit对象映射

我正在努力映射以下json响应：

{
 "data":
       {
        "plans":
          [
           {
             "planid":"10",
             "plandescription":"foo",
             "plantype":"2",
             "planvalue":"30",
             "status":"Active"
           }
         ]
       }
}

这就是我想做的：

RKObjectMapping *planMapping = [RKObjectMapping mappingForClass:[Plans class]];
[planMapping addAttributeMappingsFromDictionary:@{
 @"planid": @"planId",
 @"plandescription": @"planDescription",
 @"plantype": @"planType",
 @"planvalue": @"planValue",
 @"status" : @"status"
 }];

RKResponseDescriptor *planResponseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:planMapping pathPattern:nil keyPath:@"data/plans" statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];
[objectManager addResponseDescriptor:planResponseDescriptor];

---

但是对象没有被映射：\n怎么了？

尝试将keyPath:@“data/plan”更改为keyPath:@“data.plan”

是否修复了它？