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用Objective-C HTMLParser解析HTML文档

代码:https://github.com/zootreeves/Objective-C-HMTL-Parser

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NSString *str = [NSString stringWithContentsOfURL:[NSURL URLWithString:@"http://vip.astro.sina.com.cn/astro/view/aries/day/20140808"] encoding:NSUTF8StringEncoding error:nil];
     
    NSError *error;
     
    //预先步骤
    //1. 在工程中添加libxml2的库(Build Phase -> Link binary with libraries -> +)
    //2. 在Header Search Path中添加/usr/include/libxml2
     
    //解析HTML文档
    HTMLParser *parser = [[HTMLParser alloc] initWithString:str error:&error];
    if (error) {
        NSLog(@"%@", error);
        return;
    }
     
    //获取HTML的body部分
    HTMLNode *node = [parser body];
    //根据HTML节点的属性查找节点
    NSArray *tabs = [node findChildrenWithAttribute:@"class" matchingName:@"tab" allowPartial:YES];
    for (HTMLNode *n in tabs) {
        //根据节点名称查找子节点
        HTMLNode *h4 = [n findChildTag:@"h4"];
        HTMLNode *img = [n findChildTag:@"img"];
        HTMLNode *p = [n findChildTag:@"p"];
         
        //获取的属性值
        NSLog(@"%@", [img getAttributeNamed:@"src"]);
        //获取节点内容
        NSLog(@"%@: %@", [h4 contents], [p contents]);
    }


用Objective-C HTMLParser解析HTML文档