【iOS开发】获取网络数据或者路径的文件名

方法一：最直接。

NSString * urlString = @”http://www.baidu.com/img/test.mp3”;

NSString *fileName = [urlString lastPathComponent];

NSLog(@”%@”,fileName);

方法二：根据字符或者时字符串分割。

Object -C

NSString *link = @”http://www.baidu.com/video/test.mp3”;

NSString *filename = [[NSString alloc] init];

NSArray *SeparatedArray = [[NSArray alloc]init];

SeparatedArray =[link componentsSeparatedByString:@"/"];

filename = [SeparatedArray lastObject];

NSLog(@”%@”,SeparatedArray);

NSLog(@”%@”,filename);

[filename release];

方法三：将链接看成路径。

NSString * urlString = @”http://www.baidu.com/video/test.mp3”;

NSArray *urlCom = [[NSArray alloc]initWithArray:[url pathComponents]];

NSLog(@”%@”,[urlCom lastObject]);

[urlCom release];

方法四：NSRange.它在截取二进制文件的时候十分方便。

NSString * urlString = @”http://www.baidu.com/video/test.mp3”;

NSString * fileName;

NSRange range = [urlString rangeOfString:@"/" options:NSBackwardsSearch];

if (range.location != NSNotFound)

{

fileName = [urlString substringFromIndex:range.location+1];

if([[fileName lowercaseString]hasSuffix:@”.mp3”])

{

NSLog(@”%@”,fileName);

}

else

{

}

}

else

{

return;

}