JSONKit：创建一个 json 格式的字符串

Posted 2023-03-15

【中文标题】JSONKit：创建一个 json 格式的字符串

【英文标题】：JSONKit: create a json formatted string

【发布时间】：2011-07-18 16:29:42

【问题描述】：

我想将 NSDictionary 和 NSArrays 转换为 json 格式。 JSON Kit 可以做到这一点以及如何做到这一点？

【参考方案1】：

// 数据->字符串

NSMutableDictionary *nameElements = [NSMutableDictionary dictionary];     

[nameElements setObject:@"abcd" forKey:@"username"];

[nameElements setObject:@"1234" forKey:@"password"];    

NSString* jsonString = [nameElements JSONString];  

// 字符串->数据

NSDictionary *nameElements_ = [jsonString objectFromJSONString];   

for(NSString *key in [nameElements_ allKeys]) 
    NSString* body = [nameElements_ objectForKey:key];
    NSLog(@"%@", body);

【参考方案2】：

这是将字典和数组发送到服务器的示例。它对我有用 1000000%。

SBJSON *jparser = [[SBJSON new] autorelease];


NSString *ArrayjsonItems = [jparser stringWithObject:self.UrMergedArray];

NSString *DicjsonItems = [jparser stringWithObject:self.UrMergedDic];




NSLog(@"array Items :%@",self.UrMergedArray);

NSLog(@"dic Items :%@",self.UrMergedDic);




NSString *postString =[NSString stringWithFormat:@"Arrayitems=%@&Dicitems=%@",ArrayjsonItems,DicjsonItems];


NSLog(@"it is going to post : %@ \n\n",postString);



NSMutableURLRequest *request=[NSMutableURLRequest requestWithURL:snapURL];

[request setHTTPMethod:@"POST"];

[request setHTTPBody:[postString dataUsingEncoding:NSUTF8StringEncoding]];



NSURLConnection *connection=[[NSURLConnection alloc]
                             initWithRequest:request
                             delegate:self];


if (connection) 

    self.receivedData = [[NSMutableData data] retain];




[connection release];   

【讨论】：

这应该是 SBJSON 而不是 JSONKit