iOS开发：用TFHpple解析xml数据

浏览数：73 / 时间：2015年06月11日

对于xml的解析有多种方法，其中之一就是使用TFHpple。下面就自己的项目解析谈谈如何使用这个类。首先下载下面的代码：

http://code4app.com/ios/解析HTML/5167ca396803faf447000002

加入三个类TFHpple.h,TFHpple.m,TFHppleElement.h,TFHppleElement.m,XPathQuery.h,XPathQuery.m加到自己的项目中，在Frameworks中导入libxml2.x

然后需要修改Header Search Paths

最后，看看自己的代码：

   TFHpple *xpathParser = [[TFHpple alloc] initWithHTMLData:htmlData];
    NSArray *elements  = [xpathParser searchWithXPathQuery:@"//a"];
 
    for (TFHppleElement *element in elements) {
        
        if ([element attributes]) {
            newsDetailsModel.content =[[element attributes]objectForKey:@"href"];
        }
    }

这个elements是a标签的内容，你可以打印一下看看，包含啥内容，我是取href，连接内容

其实，element也有好多东西，

@interface TFHppleElement : NSObject {
@private
  NSDictionary * node;
}

- (id) initWithNode:(NSDictionary *) theNode;

+ (TFHppleElement *) hppleElementWithNode:(NSDictionary *) theNode;

// Returns this tag‘s innerHTML content.
@property (nonatomic, readonly) NSString *content;

// Returns the name of the current tag, such as "h3".
@property (nonatomic, readonly) NSString *tagName;

// Returns tag attributes with name as key and content as value.
//   href  = ‘http://peepcode.com‘
//   class = ‘highlight‘
@property (nonatomic, readonly) NSDictionary *attributes;

// Returns the children of a given node
@property (nonatomic, readonly) NSArray *children;

// Returns the first child of a given node
@property (nonatomic, readonly) TFHppleElement *firstChild;

// the parent of a node
@property (nonatomic, retain, readonly) TFHppleElement *parent;

// Provides easy access to the content of a specific attribute, 
// such as ‘href‘ or ‘class‘.
- (NSString *) objectForKey:(NSString *) theKey;

@end