使用NSXml解析xml响应

Question

我试图解析一个xml，它有一个根元素和两个同名的子元素。然而，它们一直连接在一起。我该如何解决这个问题呢？到目前为止，以下是我的代码

-

(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{

    element = elementName;

    if([element isEqualToString:@"bustime-response"]){
        self.item = [[NSMutableDictionary alloc]init];
        self.direction =[[NSMutableString alloc]init];

    }

}

-(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string{
    if ([element isEqualToString:@"dir"]){
        string = [string stringByTrimmingCharactersInSet:[NSCharacterSet  whitespaceAndNewlineCharacterSet]];
        [self.direction appendString:string];
    }
}

Answer 1

试试这个，它对我很有效：

-(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI
qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
    element = elementName;

    if ([element isEqualToString:@"bustime-response"])
    {
        elementFound = YES;

        if (self.item)
            self.item = nil;
        self.item = [[NSMutableDictionary alloc]init];
        if (self.direction)
            self.direction  = nil;
        self.direction =[[NSMutableString alloc]init];
    }
}

-(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
    if (elementFound)
    {
        if ([element isEqualToString:@"dir"]){
            string = [string stringByTrimmingCharactersInSet:[NSCharacterSet  whitespaceAndNewlineCharacterSet]];
            [self.direction appendString:string];
        }
        //Add another if with the tag you want to retrieve the data from here
    }
}

-(void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
    if ([element isEqualToString:@"bustime-response"])
    {
        elementFound = NO;
        // self.receivedDataArray - main array to store all of your dictionary
        [self.receivedDataArray addObject: self.direction];
            [self.receivedDataArray addObject: self.item];
        self.direction = nil;
            self.item = nil;
    }
}

如您所见，您必须添加另一个BOOL变量elementFound和NSMutableArray receivedDataArray来存储所有数据。试一试，让我知道它是否适合你。记住，添加NSLogs用于调试是很好的，它有很大的帮助。