Iphone 解析json数据时未显示正确的值
当输入NSLog(标题)位置和城市时,它显示零值 JSON: 按照Praveen的回答,我尝试了此代码,但仍然不起作用:Iphone 解析json数据时未显示正确的值,iphone,objective-c,Iphone,Objective C,当输入NSLog(标题)位置和城市时,它显示零值 JSON: 按照Praveen的回答,我尝试了此代码,但仍然不起作用: [ { "date": 1311552000000, "events": [ { "affectedDate": 1311552000000, "event": { "appId": 42, "eventId": 18095, "location": "
[
{
"date": 1311552000000,
"events": [
{
"affectedDate": 1311552000000,
"event": {
"appId": 42,
"eventId": 18095,
"location": "Sjølingstad Uldvarefabrik",
"municipality": "Lindesnes",
"title": "Utstillingsåpning - romfisk"
}
},
{
"affectedDate": 1311552000000,
"event": {
"appId": 42,
"eventId": 18095,
"location": "Sjølingstad Uldvarefabrik",
"municipality": "Lindesnes",
"title": "Utstillingsåpning - romfisk"
}
},
{
"affectedDate": 1311580800000,
"event": {
"appId": 620,
"eventId": 19490,
"location": "Høvåg Gjestehus, Vestre Vallesverd, Høvåg",
"municipality": "Lillesand",
"title": "Kunstutstilling på Høvåg Gjestehus"
}
},
...
]
JSONValue
的标准NSString添加额外的解析方法,该方法返回NSDictionary
表示NSString
获得NSDictionary后,将其转换为NSArray,如下所示
NSArray*values=[dictionary allValues]
然后使用方法[values objectForKey:@“date”]
获取日期,依此类推。其嵌套的Json。值的解析和检索是不同的。一旦获得嵌套对象的字典值,就需要深入了解它以获得下一个值
NSDictionary *dictOne = [results objectAtIndex:0];
NSArray *activitiesArray = [dictOne objectForKey:@"events"];
NSDictionary *dictTwo = [activitiesArray objectAtIndex:1];
NSArray *eventArray=[dictTwo objectForKey:@"event"];
NSDictionary *dictThree=[eventArray objectAtIndex:2];
请提供json,以便我们了解其结构。这是我正在使用的json数据。请编辑您自己的问题并进行更新,而不是其他人回答。正如您在代码中看到的,我正在使用它的showign date affecteddate,但不显示其他值
NSDictionary *dictOne = [results objectAtIndex:0];
NSArray *activitiesArray = [dictOne objectForKey:@"events"];
NSDictionary *dictTwo = [activitiesArray objectAtIndex:1];
NSArray *eventArray=[dictTwo objectForKey:@"event"];
NSDictionary *dictThree=[eventArray objectAtIndex:2];
NSDictionary *dictTwo = [activitiesArray objectAtIndex:1]; // Or get object for key events