从Restkit获取错误说明

Question

当我的Web服务返回错误时，我想显示返回响应的错误消息。我找不到在RestKit中执行此操作的任何方法。我试过设置对象管理器的错误映射属性，使用以下建议：

Restkit json error response msg from server

但是，这并不为我工作。首先，RKErrorMessage似乎不再存在。

任何帮助表示赞赏。

Answer 1

在第20节，你必须做两件事情：

首先，导入RKErrorMessage.h文件：

#import <RestKit/RKErrorMessage.h>

然后，添加错误映射到你的ObjectManager ：

RKObjectMapping *errorMapping = [RKObjectMapping mappingForClass:[RKErrorMessage class]]; 
    [errorMapping addPropertyMapping:[RKAttributeMapping attributeMappingFromKeyPath:@"error" toKeyPath:@"errorMessage"]]; 
    [objectManager addResponseDescriptor:[RKResponseDescriptor responseDescriptorWithMapping:errorMapping pathPattern:nil keyPath:@"error" statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassClientError)]]; 

Answer 2

试试这一个RestKit〜> 0.22.0

// Setup error mapping 
RKObjectMapping *errorMapping = [RKObjectMapping mappingForClass:[RKErrorMessage class]]; 
[errorMapping addPropertyMapping: [RKAttributeMapping attributeMappingFromKeyPath:@"errorDescription" toKeyPath:@"errorMessage"]]; 
RKResponseDescriptor *errorResponseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:errorMapping 
                          method:RKRequestMethodAny 
                         pathPattern:nil 
                          keyPath:nil 
                         statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassClientError)]; 
[[RKObjectManager sharedManager] addResponseDescriptor:errorResponseDescriptor];