我正在尝试解析一个来自位于以下位置的api请求的json字符串：
http://www.physics.leidenuniv.nl/json/news.php
http://www.physics.leidenuniv.nl/json/news.php
但是,我无法解析这个json.
我收到以下错误：
字符串解析期间文件的意外结束
我已经找了几个小时,但是我找不到这个问题的答案.
我的代码段：
在我的viewDidLoad：
NSURLRequest *request = [NSURLRequest requestWithURL:
[NSURL URLWithString:@"http://www.physics.leidenuniv.nl/json/news.PHP"]];
[[NSURLConnection alloc] initWithRequest:request delegate:self];
代表：
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
NSMutableData *responseData = [[NSMutableData alloc] init];
[responseData appendData:data];
NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
NSError *e = nil;
NSData *jsonData = [responseString dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *JSON = [NSJSONSerialization JSONObjectWithData:jsonData options: NSJSONReadingMutableContainers error: &e];
}
任何人都知道这个问题的答案,所以我可以解析json数据？
解决方法
这样做：
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
// Append the new data to receivedData.
// receivedData is an instance variable declared elsewhere.
[responseData appendData:data];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
NSError *e = nil;
NSData *jsonData = [responseString dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *JSON = [NSJSONSerialization JSONObjectWithData:jsonData options: NSJSONReadingMutableContainers error: &e];
}
