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我有要解析为 Map 的 XML。但由于缺乏Java知识，我无法做到。我的 XML 格式是这样的。

<configuration>    
<config name="name1" type="main" format="xyz-D" size=1 scale=2 required=no/>
<config name="name2" type="sub" format="xyz-E" size=12 scale=5 required=no/>
<config name="name3" type="last" format="xyz-C" size=2 scale=1 required=no/>
<config name="name4" type="first" format="xyz-S" size=16 scale=3 required=no/>
<config name="name5" type="main" format="xyz-S" size=17 scale=2 required=no/>
<config name="name6" type="main" format="xyz-S" size=18 scale=2 required=no/>
<config name="name7" type="first" format="xyz-S" size=23 scale=4 required=no/>
<config name="name8" type="last" format="xyz-S" size=45 scale=2 required=no/>
<config name="name9" type="sub" format="xyz-s" size=39 scale=15 required=no/>
<configuration/>

我如何将其转换为 MAP 以便我可以将其用于后面的操作

4

1 回答 1

0

下面是构建与每个元素Config对应的对象的代码。<config>即兴创作以将这些对象添加到 aList或Map.

import java.io.StringReader;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;

public class ConfigImporter
{
    private static String cfgXml = "<configuration> <config name='name1' type='main' format='xyz-D' size='1' scale='2' required='no'/> <config name='name2' type='sub' format='xyz-E' size='12' scale='5' required='no'/> <config name='name3' type='last' format='xyz-C' size='2' scale='1' required='no'/> <config name='name4' type='first' format='xyz-S' size='16' scale='3' required='no'/> <config name='name5' type='main' format='xyz-S' size='17' scale='2' required='no'/> <config name='name6' type='main' format='xyz-S' size='18' scale='2' required='no'/> <config name='name7' type='first' format='xyz-S' size='23' scale='4' required='no'/> <config name='name8' type='last' format='xyz-S' size='45' scale='2' required='no'/> <config name='name9' type='sub' format='xyz-s' size='39' scale='15' required='no'/> </configuration>";

    public static void main(String[] args)
    {
        try
        {
            DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
            Document doc = dBuilder.parse(new InputSource(new StringReader(cfgXml)));

            // optional, but recommended
            // read this -
            // http://stackoverflow.com/questions/13786607/normalization-in-dom-parsing-with-java-how-does-it-work
            doc.getDocumentElement().normalize();

            System.out.println("Root element :" + doc.getDocumentElement().getNodeName());

            NodeList nList = doc.getElementsByTagName("config");

            System.out.println("----------------------------");

            for (int temp = 0; temp < nList.getLength(); temp++)
            {

                Node nNode = nList.item(temp);

                System.out.println("\nCurrent Element :" + nNode.getNodeName());

                if (nNode.getNodeType() == Node.ELEMENT_NODE)
                {

                    Element eElement = (Element) nNode;

                    Config c = new Config();

                    c.name = eElement.getAttribute("name");
                    c.type = eElement.getAttribute("type");
                    c.format = eElement.getAttribute("format");
                    c.size = Integer.valueOf(eElement.getAttribute("size"));
                    c.scale = Integer.valueOf(eElement.getAttribute("scale"));
                    String attribute = eElement.getAttribute("required");

                    c.required = Boolean.valueOf("Yes".equalsIgnoreCase(attribute) ? true : false);

                    System.out.println("Imported config : " + c);
                }
            }
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }

    public static class Config
    {
        @Override
        public String toString()
        {
            return "Config [name=" + name + ", type=" + type + ", format=" + format + ", size=" + size + ", scale=" + scale + ", required="
                    + required + "]";
        }

        public String name;
        public String type;
        public String format;
        public int size;
        public int scale;
        public boolean required;
    }
}
于 2013-05-25T15:37:02.497 回答