小编And*_*wSB的帖子

我正在尝试缓存一个网页,然后我可以使用UIWebView显示该网页.

我有NSURLSessionDataTask一个for循环中的相关内容(试图缓存6个网页)在另一个的完成块内NSURLSessionDataTask.当我跑步时,我不断收到此错误:

Ayy there was error downloading, data:<> response:(null) error:Error Domain=NSURLErrorDomain Code=-1002 "The operation couldn’t be completed. (NSURLErrorDomain error -1002.)" UserInfo=0xdd89d30 {NSUnderlyingError=0xdd89ba0 "The operation couldn’t be completed. (kCFErrorDomainCFNetwork error -1002.)"}

这是我正在呼唤的片段

for (MAClass *class in [myDictResult objectForKey:@"classes"]) {
     NSString *PRURL = [[[class assignments] objectAtIndex:[[class assignments] count]-1] assignmentName];
     NSLog(@"PRURL is %@", PRURL);

     NSURLSessionDataTask *progressReportTask = [defaultSession dataTaskWithURL:[NSURL URLWithString:PRURL] completionHandler:^(NSData *progressReportData, NSURLResponse *progressReportResponse, NSError *progressReportError) {
         if ([progressReportData length] > 0 && progressReportError == nil) {
              NSLog(@"got dat …