通过调用document.write创建解析表（）

Question

我想解析一个网页以获取该页面上的表格内容。但是，该表是通过调用document.write（）和几个javascript函数创建的。即当我加载该页面的URL请求时，我得到的源代码不包含该表的html标记。是否有可能获得最终页面的源代码（即包含我想要的表格的html标签的源代码）？我非常好奇，我可以在Safari浏览器的开发工具中查看“最终页面源代码”，但不能查看页面的来源。 这是页面the source

Answer 1

您应该使用实现NSConnectionDataDelegate协议，并使用NSConnection类。我相信在调用-(void) connectionDidFinishLoading:(NSURLConnection *)connection时，页面已完成加载。

-(void) requestPage 
{ 
    NSString *urlString = @"http://the.page.you.want.com"; 
    NSURL *url = [NSURL URLWithString:urlString]; 

    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLCacheStorageAllowed timeoutInterval:20.0f]; 


    responseData = [[NSMutableData alloc] init]; 
    connection = [[NSURLConnection connectionWithRequest:request delegate:self] retain]; 
    delegate = target; 
} 


-(void) connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response 
{ 
    if ([response isKindOfClass:[NSHTTPURLResponse class]]) 
    { 
     NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse*) response; 
     //If you need the response, you can use it here 
    } 
} 

-(void) connection:(NSURLConnection *)connection didReceiveData:(NSData *)data 
{ 
    [responseData appendData:data]; 
} 

-(void) connection:(NSURLConnection *)connection didFailWithError:(NSError *)error 
{ 
    [responseData release]; 
    [connection release]; 
} 

-(void) connectionDidFinishLoading:(NSURLConnection *)connection 
{ 
    if (connection == adCheckConnection) 
    { 
     NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding]; 

     //You've got all the data now 
     //Do something with your response string 


     [responseString release]; 
    } 

    [responseData release]; 
    [connection release]; 
} 

Answer 2

是源，只需使用视图生成的源代码在Firefox与Web开发人员扩展或扩展Firebug

Answer 3

是源，只需使用视图生成的源代码在Firefox与Web开发人员扩展或扩展Firebug