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  • iOS开发之XML解析代码

    iOS开发之XML解析代码

        //1.加载和解析XML文件
        NSString *path = [[NSBundle mainBundle] pathForResource:@"xml.txt" ofType:nil];
        NSData *data = [[NSData alloc] initWithContentsOfFile:path];
        // GDataXMLDocument 表示XML文档对象
        // initWithData 使用NSData初始化, 就是解析
        GDataXMLDocument *doc = [[GDataXMLDocument alloc] initWithData:data options:0 error:nil];
        
        //2.获取指定结点 XPath
        //CityName路径: /root/systemConfig/CityName
        NSArray *array = [doc nodesForXPath:@"/root/systemConfig/CityName" error:nil];
        //CityName
        GDataXMLElement *element = [array firstObject];
        NSLog(@"name=%@ value=%@",element.name,element.stringValue);
        
        //3.获取指定结点的属性
        NSArray *items = [doc nodesForXPath:@"/root/systemConfig/ComeChannel/Item" error:nil];
        GDataXMLElement *item = [items firstObject];
        //获取属性, 属性使用GDataXMLElement表示
        for(GDataXMLElement *attr  in item.attributes)
        {
            NSLog(@"a-name=%@ avalue=%@",attr.name,attr.stringValue);
        }
        
        
        //4.获取所有指定名字的结点(不管位置)
        //XPath语法: //Item
        NSArray *allItem = [doc nodesForXPath:@"//Item" error:nil];
        for (GDataXMLElement *e in allItem) {
            NSLog(@"name = %@",e.name);
        }
        
        //5.获取所有指定名字的属性(不管哪个结点的)
        //XPath语法: //@value
        NSArray *allValue = [doc nodesForXPath:@"//@value" error:nil];
        for (GDataXMLElement *e in allValue) {
            NSLog(@"value = %@",e.stringValue);
        }
        
        //6.逐层遍历XML文件
        //获取根节点
        GDataXMLElement *root = doc.rootElement;
        //获取子节点
        //root.children
        //获取子节点个数
        //root.childCount
        //获取指定名字的子节点
        //root elementsForName:<#(NSString *)#>
    }
    

     效果图:

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  • 原文地址:https://www.cnblogs.com/su-jun-jie/p/4394088.html
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