Iphone 解析Json解析的代码是什么？

您好，我已经实现了用于解析以下响应的代码，如下所示，但它工作不正常：

 NSString *req = [NSString stringWithFormat: @" My URL"];   
 NSDictionary *googleResponse = [[NSString stringWithContentsOfURL: [NSURL URLWithString: req] encoding: NSUTF8StringEncoding error: NULL] JSONValue];        
 NSDictionary *resultsDict = [googleResponse valueForKey:  @"eventtitle"];

解析以下响应的代码是什么？请给我一个解决方案

{
  "AlansHarleyEvents": [
    {
      "id": "3",
      "eventtitle": "22nd Annual Pig Roast",
      "eventdate": "April 22nd 8am-5pm"
    },
    {
      "id": "4",
      "eventtitle": "Poker Run",
      "eventdate": "April 28th 8am at Shooters"
    },
    {
      "id": "5",
      "eventtitle": "Kickstands for kids",
      "eventdate": "May 12th 8am-5pm"
    },
    {
      "id": "6",
      "eventtitle": "Ride for the Cure",
      "eventdate": "May28th 8am Free Drinks!"
    },
    {
      "id": "7",
      "eventtitle": "Veterans Ride",
      "eventdate": "June 10th 9am @City Hall"
    },
    {
      "id": "8",
      "eventtitle": "Biker Beach Bash",
      "eventdate": "June 28th 8-5pm @ The Pier"
    },
    {
      "id": "10",
      "eventtitle": "22nd Annual Pig Roast",
      "eventdate": "April 22nd 8am-5pm"
    },
    {
      "id": "11",
      "eventtitle": "Poker Run",
      "eventdate": "April 28th 8am at Shooters Lounge"
    },
    {
      "id": "12",
      "eventtitle": "22nd Annual Pig Roast",
      "eventdate": "April 22nd 8am-5pm"
    },
    {
      "id": "13",
      "eventtitle": "Swamp Run",
      "eventdate": "April 22nd 8am-5pm"
    }
  ]
}

---

NSJSONSerialization类是仅适用于iOS 5及以上版本的本机类

对于任何iPhone OS版本，您都可以使用JSONKit：

---

NSJSONSerialization类是仅适用于iOS 5及以上版本的本机类

对于任何iPhone OS版本，您都可以使用JSONKit：

---

如果您的

resultsDict

包含上述JSON响应，则可以将其解析为：

NSString *req = [NSString stringWithFormat: @" My URL"];
NSDictionary *googleResponse = [[NSString stringWithContentsOfURL: [NSURL URLWithString: req] encoding: NSUTF8StringEncoding error: NULL] JSONValue];
NSDictionary *resultsDict = [googleResponse valueForKey: @"eventtitle"];

NSMutableArray *resultArray = [resultsDict valueForKey:@"AlansHarleyEvents"]; 

for(int i = 0; i<[resultArray count]; i++)
{
    NSLog(@"%@",[[resultArray objectAtIndex:i] valueForKey:@"id"]) ;
    NSLog(@"%@",[[resultArray objectAtIndex:i] valueForKey:@"eventtitle"]) ;
    NSLog(@"%@",[[resultArray objectAtIndex:i] valueForKey:@"eventdate"]) ; 
}

NSString*req=[nsstringwithformat:@“我的URL”]；
NSDictionary*googleResponse=[[NSString stringWithContentsOfURL:[NSURL URLWithString:req]编码：NSUTF8StringEncoding错误：NULL]JSONValue]；
NSDictionary*resultsDict=[googleResponse valueForKey:@“eventtitle”]；
NSMutableArray*resultArray=[resultsDict valueForKey:@“AlansHarleyEvents”]；
对于（int i=0；i如果
resultsDict
包含上述JSON响应，则可以将其解析为：

NSString *req = [NSString stringWithFormat: @" My URL"];
NSDictionary *googleResponse = [[NSString stringWithContentsOfURL: [NSURL URLWithString: req] encoding: NSUTF8StringEncoding error: NULL] JSONValue];
NSDictionary *resultsDict = [googleResponse valueForKey: @"eventtitle"];

NSMutableArray *resultArray = [resultsDict valueForKey:@"AlansHarleyEvents"]; 

for(int i = 0; i<[resultArray count]; i++)
{
    NSLog(@"%@",[[resultArray objectAtIndex:i] valueForKey:@"id"]) ;
    NSLog(@"%@",[[resultArray objectAtIndex:i] valueForKey:@"eventtitle"]) ;
    NSLog(@"%@",[[resultArray objectAtIndex:i] valueForKey:@"eventdate"]) ; 
}

NSString*req=[nsstringwithformat:@“我的URL”]；
NSDictionary*googleResponse=[[NSString stringWithContentsOfURL:[NSURL URLWithString:req]编码：NSUTF8StringEncoding错误：NULL]JSONValue]；
NSDictionary*resultsDict=[googleResponse valueForKey:@“eventtitle”]；
NSMutableArray*resultArray=[resultsDict valueForKey:@“AlansHarleyEvents”]；
对于（inti=0；iYu），可以将NSJSONSerialization对象与ios5一起使用

   NSDictionnary *jsonObject = [NSJSONSerialization JSONObjectWithData:resultsDict options:NSJSONReadingMutableContainers error:&error];

您可以将NSJSONSerialization对象与IOS 5一起使用

   NSDictionnary *jsonObject = [NSJSONSerialization JSONObjectWithData:resultsDict options:NSJSONReadingMutableContainers error:&error];

我认为否决票是因为
resultsDict
没有键/值
AlansHarleyEvents
@maulik:当我使用ur代码时，它在NSDictionary*googleResponse=[[NSString stringWithContentsOfURL:[NSURL URLWithString:req]编码：NSUTF8StringEncoding错误：null]点给了我空值JSONValue]；我认为否决票是因为
resultsDict
没有键/值
AlansHarleyEvents
@maulik:当我使用ur代码时，它在NSDictionary*googleResponse=[[NSString StringWithContentsForl:[NSURL URLWithString:req]点给我空值编码：NSUTF8StringEncoding错误：NULL]JSONValue]；