编码以获取URL IOS的​​内容

Question

I want to get the contents of a url hosted by me. The contents of the url is

<p class="citation_style_APA">Blaine, J. D. (1992). <i>Buprenorphine: An alternative treatment for opioid dependence</i>. Rockville, MD: U.S. Dept. of Health and Human Services, Public Health Service, Alcohol, Drug Abuse, and Mental Health Administration, National Institute on Drug Abuse. </p>

Below is my code to get the above contents in a string.

NSString *s =[NSString stringWithFormat:@"%@",@"xyz.com"];
url = [NSURL URLWithString:s];
NSString *content = [NSString stringWithContentsOfURL:url encoding:NSASCIIStringEncoding error:nil];
NSLog(@"%@",content);

I am getting null, can anyone tell where i am going wrong.

Answer 1

Try a complete web address, like @" http://www.xyz.com/myfile.html ". Once you get it working, you'll want to change to an asynch technique.

Answer 2

You need to do two things.

1. you should use a valid url

2. NSString *content=[[NSString string] initWithContentsOfURL:url encoding:NSASCIIStringEncoding error:Nil];

Now check your Log; It'll definitely work.

Answer 3

Try this way

NSString *strUrl  = < YOUR URL >
NSURL    *url     = [NSURL URLWithString:[strUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
NSError  *error   = nil;
NSString *content = [NSString stringWithContentsOfURL:url encoding:NSASCIIStringEncoding error:&error];
if(content==nil)
    NSLog(@"%@",error!=nil ? error.description : @"");
else
    NSLog(@"%@",content);