dom 解析 xml

梦里梦外; 2022-08-27 07:56 323阅读 0赞

import java.io.InputStream;
import java.util.List;
import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;
public class Test {
    static {
        try {
            Test SC = new Test();
            // 获取url
            System.out.println("MyPath: "
                    + SC.getClass().getResource("/*.xml"));
            InputStream in = null;
            try {
                // 获取输入流
                in = SC.getClass().getResourceAsStream("/*.xml");
            } catch (Exception ex) {
                System.out.println("Can't read *.xml!");
            }
            if (in != null) {
                // 用SAX解析xml文件
                SAXReader rd = new SAXReader();
                Document doc = rd.read(in);
                // 读取根节点
                Element roots = doc.getRootElement();
                // 一级
                Element el = roots.element("FirstRoot");
                if (el != null) {
                    System.out.print(el.getData().toString());
                }
                // 二级
                Element firstRoot = roots.element("FirstRoot");
                if (firstRoot != null) {
                    List secondRoot = firstRoot.elements("SecondRoot");
                    for (int i = 0; i < secondRoot.size(); i++) {
                        Element dc = (Element) secondRoot.get(i);
                        System.out.println(dc.getData().toString());
                    }
                }
                // 三级
                Element firstRoot = roots.element("FirstRoot");
                if (firstRoot != null) {
                    List secondRoot = firstRoot.elements("SecondRoot");
                    for (int i = 0; i < secondRoot.size(); i++) {
                        Element el = (Element) secondRoot.get(i);
                        if (el.element("Code") != null)
                            System.out.print(el.element("Code").getData()
                                    .toString());
                        if (el.element("Name") != null)
                            System.out.println(el.element("Name")
                                    .getData().toString());
                    }
                }
            }
        } catch (Exception e) {
            System.out.print(e.toString());
        }
    }
    public static void main(String[] arge) {
    }
}