使用java中的dom解析器将xml文件转换为json对象 [英] Convert xml file to json object using dom parser in java

问题描述

尝试将任何类型的 XML 文件转换为 JSON 对象结构.不同的 xml 文件具有不同深度的元素和子元素.当同名元素处于相同高度时创建数组我需要一个递归函数来为任何结构化的 XML 文件创建精确的 JSON 对象

Trying to convert any type of XML file to JSON object structure . Different xml files are having varied depths of elements and sub-elements. creation of arrays when elements with same name are at same height I need a recursive function which create exact JSON Object for any structured XML file

推荐答案

/*
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 * and open the template in the editor.
 */

/**
 *
 * @author nikunj.m
 */
import java.io.File;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class xmlTojsonDom1 {

public static void main(String[] args) {
    try {
        File file = new File("D:/Noname1.xml");
        DocumentBuilder dBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
        Document doc = dBuilder.parse(file);
        System.out.println("Root element :" + doc.getDocumentElement().getNodeName());
        if (doc.hasChildNodes()) {
            JSONArray ddd = printNote_1(doc.getChildNodes());
            System.out.println("ddd ::::: " + ddd);
        }
    } catch (Exception e) {
        System.out.println(e.getMessage());
    }
}

private static JSONArray printNote_1(NodeList nodeList) {
    JSONArray dataArr = new JSONArray();
    JSONObject dataObject = new JSONObject();
    for (int count = 0; count < nodeList.getLength(); count++) {
        Node tempNode = nodeList.item(count);
        if (tempNode.getNodeType() == Node.ELEMENT_NODE) {
            if (tempNode.hasChildNodes() && tempNode.getChildNodes().getLength() > 1) {
                JSONArray temArr = printNote_1(tempNode.getChildNodes());
                if (dataObject.containsKey(tempNode.getNodeName())) {
                    dataObject.getJSONArray(tempNode.getNodeName()).add(temArr.getJSONObject(0));
                } else {
                    dataObject.put(tempNode.getNodeName(), temArr);
                }
            } else {
                dataObject.put(tempNode.getNodeName(), tempNode.getTextContent());
            }
        }
    }
    dataArr.add(dataObject);
    return dataArr;
}

}

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