ios-如何在ios中解析HTML内容? [英] ios - How to parse HTML content in ios?

问题描述

如何解析HTML文件?

How do I parse HTML file?

我在下面的代码中获取一个HTML文件，我只想在BinarySecurityToken XML节点之间获取数据.

I'm getting an HTML file in the below code,I just want to get data in between BinarySecurityToken XML node.

 - (void)connectionDidFinishLoading:(NSURLConnection *)connection
 {
   if(_data)
  {
    //Here am getting the below HTML content
    NSString* content = [[NSString alloc] initWithData:_data
                                              encoding:NSUTF8StringEncoding];
  }
 }


<input type="hidden" name="wa" value="wsignin1.0" />
<input type="hidden" name="wresult"
    value="<t:RequestSecurityTokenResponse xmlns:t="http://schemas.xmlsoap.org/ws/2005/02/trust">
<t:Lifetime>
   <wsu:Created >2013-04-29T11:50:29.895Z</wsu:Created>
   <wsu:Expires>2013-04-29T12:00:29.895Z</wsu:Expires>
</t:Lifetime>
<wsp:AppliesTo>     
<EndpointReference>
<Address>urn:orin.converse</Address>
</EndpointReference></wsp:AppliesTo>
<t:RequestedSecurityToken>    
   <wsse:BinarySecurityToken>
         aHR0cCUzYSUyZiUyZnNjaGVtYWd0Sjk0JTNk
   </wsse:BinarySecurityToken>

有什么想法吗?预先感谢.

Any ideas? Thanks in advance.

推荐答案

您可以使用此代码

NSRange divRange = [content rangeOfString:@"<wsse:BinarySecurityToken>" options:NSCaseInsensitiveSearch];
    if (divRange.location != NSNotFound)
    {
        NSRange endDivRange;

        endDivRange.location = divRange.length + divRange.location;
        endDivRange.length   = [content length] - endDivRange.location;
        endDivRange = [content rangeOfString:@"</wsse:BinarySecurityToken>" options:NSCaseInsensitiveSearch range:endDivRange];

        if (endDivRange.location != NSNotFound)
        {
            divRange.location += divRange.length;
            divRange.length  = endDivRange.location - divRange.location;


            NSLog(@"BinarySecurityToken : %@",[content substringWithRange:divRange]);
        }
    }

输出: aHR0cCUzYSUyZiUyZnNjaGVtYWd0Sjk0JTNk

Output : aHR0cCUzYSUyZiUyZnNjaGVtYWd0Sjk0JTNk

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