我在将 JSON 数组映射到 RestKit 时遇到了一些麻烦。这是 JSON 文件的样子:
{"issuelist":[
{
"issue":[
{
"id":1,
"beschreibung":"",
"name":"Test1"
},
{
"id":2,
"beschreibung":"",
"name":"Test2"
}
]
}
]}
我对“问题”的数组感兴趣。这是我对单个问题的映射:
RKObjectMapping *objectMapping = [RKObjectMapping mappingForClass:[self class] usingBlock:^(RKObjectMapping *mapping) {
[mapping mapAttributes:@"name", @"beschreibung", nil];
[mapping mapKeyPathsToAttributes:
@"id", @"identifier",
nil];
}];
这是我设置 ObjectMapping 的方式
RKObjectMappingProvider *omp = [RKObjectManager sharedManager].mappingProvider;
RKObjectMapping *issueMapping = [Issue mapping];
[omp addObjectMapping:issueMapping];
[omp setObjectMapping:issueMapping forKeyPath:@"issuelist.issue"];
不幸的是,这不起作用。我得到这样的日志输出:
T restkit.object_mapping:RKObjectMappingOperation.m:152 在 keyPath 'name' 处找到可转换的值。从类型“__NSArrayI”转换为“NSString” W restkit.object_mapping:RKObjectMappingOperation.m:232 keyPath 'name' 处的值转换失败。没有从 '__NSArrayI' 转换为 'NSString' 的策略 T restkit.object_mapping:RKObjectMappingOperation.m:339 跳过了从 keyPath 'name 到 keyPath 'name' 的属性值的映射——值不变((null)) T restkit.object_mapping:RKObjectMappingOperation.m:322 映射属性值 keyPath 'beschreibung' 到 'beschreibung' T restkit.object_mapping:RKObjectMappingOperation.m:152 在 keyPath 'beschreibung' 找到可转换的值。从类型“__NSArrayI”转换为“NSString” W restkit.object_mapping:RKObjectMappingOperation.m:232 keyPath 'beschreibung' 处的值转换失败。没有从 '__NSArrayI' 转换为 'NSString' 的策略 T restkit.object_mapping:RKObjectMappingOperation.m:339 跳过了从 keyPath 'beschreibung 到 keyPath 'beschreibung' 的属性值的映射——值不变((null)) T restkit.object_mapping:RKObjectMappingOperation.m:322 映射属性值 keyPath 'id' 到 'identifier' T restkit.object_mapping:RKObjectMappingOperation.m:152 在 keyPath 'id' 找到可转换的值。从类型“__NSArrayI”转换为“NSString” W restkit.object_mapping:RKObjectMappingOperation.m:232 keyPath 'id' 处的值转换失败。没有从 '__NSArrayI' 转换为 'NSString' 的策略 T restkit.object_mapping:RKObjectMappingOperation.m:339 跳过了从 keyPath 'id 到 keyPath 'identifier' 的属性值的映射——值不变((null)) D restkit.object_mapping:RKObjectMappingOperation.m:624 映射操作成功...
似乎 RestKit 试图将整个数组映射到一个问题中,而不是创建一系列问题。我需要如何更改我的映射以更正此问题?
谢谢你的帮助!