依赖的包:

json-lib-2.4-jdk15.jar

ezmorph-1.0.6.jar

xom-1.2.1.jar

commons-lang-2.1.jar

commons-io-1.3.2.jar

jaxen-1.1.jar

输入xml文件,输出JSON对象

package com.cash.util;

import java.io.IOException;
import java.io.InputStream;

import org.apache.commons.io.IOUtils;
import net.sf.json.JSON;
import net.sf.json.xml.XMLSerializer;

public class Test {
 public static void ConvertXMLtoJSON() {
 InputStream is = ConvertXMLtoJSON.class.getResourceAsStream("sample.xml");
 String xml;
 try {
 xml = IOUtils.toString(is);
System.out.println(xml);
 XMLSerializer xmlSerializer = new XMLSerializer();
 JSON json = xmlSerializer.read(xml);
System.out.println(json.toString(1));
 } catch (IOException e) {
e.printStackTrace();
}
}

 public static void main(String[] args) {
ConvertXMLtoJSON();
}
}

/**
 * 将xml字符串转换为JSON对象
 * @param xmlFile xml字符串
 * @return JSON对象
*/
 public JSON getJSONFromXml(String xmlString) {
 XMLSerializer xmlSerializer = new XMLSerializer();
 JSON json = xmlSerializer.read(xmlString);
 return json;
}

/**
 * 将xmlDocument转换为JSON对象
 * @param xmlDocument XML Document
 * @return JSON对象
*/
 public JSON getJSONFromXml(Document xmlDocument) {
 String xmlString = xmlDocument.toString();
 return getJSONFromXml(xmlString);
}

/**
 * 将xml字符串转换为JSON字符串
 * @param xmlString
 * @return JSON字符串
*/
 public String getJSONStringFromXml(String xmlString ) {
 return getJSONFromXml(xmlString).toString();
}

/**
 * 将xmlDocument转换为JSON字符串
 * @param xmlDocument XML Document
 * @return JSON字符串
*/
 public String getXMLtoJSONString(Document xmlDocument) {
 return getJSONStringFromXml(xmlDocument.toString());
}

/**
 * 读取XML文件准换为JSON字符串
 * @param xmlFile XML文件
 * @return JSON字符串
*/
 public String getXMLFiletoJSONString(String xmlFile) {
 InputStream is = JsonUtil.class.getResourceAsStream(xmlFile);
 String xml;
 JSON json = null;
 try {
 xml = IOUtils.toString(is);
 XMLSerializer xmlSerializer = new XMLSerializer();
 json = xmlSerializer.read(xml);
 } catch (IOException e) {
e.printStackTrace();
}
 return json.toString();
}

/**
 * 将Java对象转换为JSON格式的字符串
*
 * @param javaObj
 * POJO,例如日志的model
 * @return JSON格式的String字符串
*/
 public static String getJsonStringFromJavaPOJO(Object javaObj) {
 return JSONObject.fromObject(javaObj).toString(1);
}

/**
 * 将Map准换为JSON字符串
 * @param map
 * @return JSON字符串
*/
 public static String getJsonStringFromMap(Map<?, ?> map) {
 JSONObject object = JSONObject.fromObject(map);
 return object.toString();
}

xml和JSON格式相互转换的Java实现