【工具类】Java优雅的将XML转为JSON格式、XML转JSON

news2025/2/24 11:38:55

Java优雅的将XML转为JSON格式、XML转JSON

1. 导入依赖
- 1.1 Maven使用
- 1.2 Gradle使用
2. 代码编写
3.运行示例

1. 导入依赖

1.1 Maven使用

 		<dependency>
            <groupId>org.dom4j</groupId>
            <artifactId>dom4j</artifactId>
            <version>2.1.3</version>
        </dependency>
        <dependency>
            <groupId>org.json</groupId>
            <artifactId>json</artifactId>
            <version>20210307</version>
        </dependency>

1.2 Gradle使用

dependencies {
    implementation("org.dom4j:dom4j:2.1.3")
    implementation("org.json:json:20210307")
}

2. 代码编写

package com.xcc.utils;

import com.xcc.pojo.vo.invoice.EInvoice;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.io.SAXReader;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.Iterator;
 
public class XmlToJsonUtils {
    public static JSONObject convertToJSON(String xml) throws DocumentException, JSONException {
        Document document = new SAXReader().read(xml);
        return parseDocument(document.getRootElement());
    }

    private static JSONObject parseDocument(org.dom4j.Element element) throws JSONException {
        JSONObject json = new JSONObject();
        Iterator children = element.elementIterator();
        while (children.hasNext()) {
            org.dom4j.Element child = (org.dom4j.Element) children.next();
            if (child.isTextOnly()) {
                json.put(child.getName(), child.getText());
            } else {
                JSONObject childJson = parseDocument(child);
                if (json.has(child.getName())) {
                    Object existingObject = json.get(child.getName());
                    if (existingObject instanceof JSONObject) {
                        json.accumulate(child.getName(), childJson);
                    } else if (existingObject instanceof org.json.JSONArray) {
                        ((org.json.JSONArray) existingObject).put(childJson);
                    }
                } else {
                    json.put(child.getName(), childJson);
                }
            }
        }
        return json;
    }
 
    public static void main(String[] args) throws Exception {
        JSONObject json = convertToJSON("https://csdn.net/xxx.xml");
        System.out.println(json.toString(2)); // 2 is the indent factor
    }
}