Question

我是iOS新手，我已经在核心数据中创建了实体城市名称距离 driverId
strainDescription strainId strainImage strainName strainTypeName vendorBusinessName vendorDriverEngagementId vendorOverallRating

的数据类型NSstring，我正在尝试保存实体中的数据，期待输出

以下是我提取的JSON对象..

(
     {
    responseCode = 0;
},
    (
            {
        cityName = “mumbai”;
        distance = "2,412.3";
        driverId = 00000000076;
        strainDescription = "his is no creeper! ";
        strainId = 00000000004;
        strainImage = "www.d.net/dDocuments/StrainImages/Eyed Jamaican.jpg";
        strainName = "Eyed Jamaican";
        strainTypeName = "Body Car";
        vendorBusinessName = businessName11;
        vendorDriverEngagementId = 172;
        vendorOverallRating = "4.8";
    },
            {
        cityName = BLACKFOOT;
        distance = "2,412.3";
        driverId = 00000000073;
        strainDescription = "pain relief, anxiety";
        strainId = 00000000006;
        strainImage = "www.d.net/dDocuments/StrainImages/Abra Cadabra.jpg";
        strainName = "Abra Cada";
        strainTypeName = "Body C";
        vendorBusinessName = businessName15;
        vendorDriverEngagementId = 174;
        vendorOverallRating = "2.1";
    },

））

我正在尝试保存实体中的数据，期待输出

核心数据实体

cityName distance driverId strainDescription strainId ....。

孟买2,412.3 00000000076他不是爬行者！ 00000000004

BLACKFOOT 2,412.3 00000000073疼痛缓解0006 ...... ..

bd *entity = [NSEntityDescription insertNewObjectForEntityForName:@“db”inManagedObjectContext:self.managedObjectContext];
if (entity!=nil){
entity.cityName= [json valueForKey:@"cityName"];
entity.distance=[json valueForKey:@"distance"];
entity.distance=[json valueForKey:@“dr”iverID];
NSError *savingError = nil;
if ([self.managedObjectContext save:&savingError]){                        
}else{
NSLog(@"Failed to save the context. Error = %@", savingError);
NSLog(@"Successfully saved the context.");
}
}else{
NSLog(@"Failed to create the doobsterdb");
}

}）;

Answer 1

json字符串，我想保存在核心数据实体

中

(
    {
    responseCode = 0;
},
    (
            {
        cityName = "mumbai";
        distance = "2,412.3";
        driverId = 00000000076;
        strainDescription = "his is no creeper!";
        strainId = 00000000002;
        strainImage = "www.dbst.net/DoobsterDocuments/StrainImages/Eyed Jamaican.jpg";
        strainName = "Eyed Jamaican";
        strainTypeName = "Body Car";
        vendorBusinessName = businessName11;
        vendorDriverEngagementId = 172;
        vendorOverallRating = "4.8";
    },
            {
        cityName = BLACKFOOT;
        distance = "2,412.3";
        driverId = 00000000076;
        strainDescription = "pain relief, anxiety";
        strainId = 00000000006;
        strainImage = "www.dbst.net/dbstDocuments/StrainImages/Abra Cadabra.jpg";
        strainName = "Abra Cadabra";
        strainTypeName = "Body Car";
        vendorBusinessName = businessName15;
        vendorDriverEngagementId = 174;
        vendorOverallRating = "2.1";
    },



   )

）

无法将json数据保存到核心数据

1 个答案: