java:xml数据转json

pom.xml引入的jar

xml解析使用dom4j

        <!--xml解析--><dependency><groupId>dom4j</groupId><artifactId>dom4j</artifactId><version>1.6.1</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.1.36</version></dependency>

1.创建xml转json工具类XmlToJsonUtil.java

package com.example.gxy.utils;import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import org.apache.commons.lang3.StringUtils;
import org.dom4j.*;import java.util.List;/*** @ClassName XmlToJsonUtil* @Author gxy* @Desc xml转json*/
public class XmlToJsonUtil {private XmlToJsonUtil(){}/*** xml转json** @param xmlStr* @return* @throws DocumentException*/public static JSONObject xml2Json(String xmlStr) {Document doc = null;try {doc = DocumentHelper.parseText(xmlStr);} catch (DocumentException e) {e.printStackTrace();}JSONObject json = new JSONObject();dom4j2Json(doc.getRootElement(), json);return json;}/*** xml转json** @param element* @param json*/private static void dom4j2Json(Element element, JSONObject json) {// 如果是属性for (Object o : element.attributes()) {Attribute attr = (Attribute) o;if (StringUtils.isNotBlank(attr.getValue())) {json.put("@" + attr.getName(), attr.getValue());}}List<Element> chdEl = element.elements();if (chdEl.isEmpty() && StringUtils.isNotBlank(element.getText())) {// 如果没有子元素,只有一个值json.put(element.getName(), element.getText());}for (Element e : chdEl) {// 有子元素if (!e.elements().isEmpty()) {// 子元素也有子元素JSONObject chdjson = new JSONObject();dom4j2Json(e, chdjson);Object o = json.get(e.getName());if (o != null) {JSONArray jsona = null;if (o instanceof JSONObject) {// 如果此元素已存在,则转为jsonArrayJSONObject jsono = (JSONObject) o;json.remove(e.getName());jsona = new JSONArray();jsona.add(jsono);jsona.add(chdjson);}if (o instanceof JSONArray) {jsona = (JSONArray) o;jsona.add(chdjson);}json.put(e.getName(), jsona);} else {if (!chdjson.isEmpty()) {json.put(e.getName(), chdjson);}}} else {// 子元素没有子元素for (Object o : element.attributes()) {Attribute attr = (Attribute) o;if (StringUtils.isNotBlank(attr.getValue())) {json.put("@" + attr.getName(), attr.getValue());}}if (!e.getText().isEmpty()) {json.put(e.getName(), e.getText());}}}}
}

2.测试

xml文件

<?xml version="\&quot;1.0\&quot;" encoding="\&quot;utf-8\&quot;"?>
<res><header><msgId>0000211</msgId><hdlSts>A</hdlSts><bdFlg>0</bdFlg></header><body><qrOvertimeFlag>Y</qrOvertimeFlag><orderTrans><tranSeq>66807478</tranSeq><merchantNo>104320553990088</merchantNo><orderNo>2439665</orderNo><custTranId></custTranId><tranCode>01</tranCode><tranTime>20190704134549</tranTime><tranAmount>0.01</tranAmount><tranStatus>1</tranStatus><unionPaySeq></unionPaySeq></orderTrans><orderTrans><tranSeq>66807491</tranSeq><merchantNo>104320553990088</merchantNo><orderNo>2439665</orderNo><custTranId>1043205539900882439665</custTranId><tranCode>06</tranCode><tranTime>20190704163313</tranTime><tranAmount>0.01</tranAmount><tranStatus>2</tranStatus><unionPaySeq></unionPaySeq></orderTrans><orderTrans><tranSeq>66807492</tranSeq><merchantNo>104320553990088</merchantNo><orderNo>2439665</orderNo><custTranId>1043205539900882439665</custTranId><tranCode>06</tranCode><tranTime>20190704163414</tranTime><tranAmount>0.01</tranAmount><tranStatus>2</tranStatus><unionPaySeq></unionPaySeq></orderTrans><orderTrans><tranSeq>66807495</tranSeq><merchantNo>104320553990088</merchantNo><orderNo>2439665</orderNo><custTranId>1043205539900882439665</custTranId><tranCode>06</tranCode><tranTime>20190705092338</tranTime><tranAmount>0.01</tranAmount><tranStatus>1</tranStatus><unionPaySeq></unionPaySeq></orderTrans></body>
</res>

main方法调用

    public static void main(String[] args) {String returnObj ="<?xml version=\"1.0\" encoding=\"utf-8\" ?><res><header><msgId>0000211</msgId><hdlSts>A</hdlSts><bdFlg>0</bdFlg></header><body><qrOvertimeFlag>Y</qrOvertimeFlag><orderTrans><tranSeq>66807478</tranSeq><merchantNo>104320553990088</merchantNo><orderNo>2439665</orderNo><custTranId></custTranId><tranCode>01</tranCode><tranTime>20190704134549</tranTime><tranAmount>0.01</tranAmount><tranStatus>1</tranStatus><unionPaySeq></unionPaySeq></orderTrans><orderTrans><tranSeq>66807491</tranSeq><merchantNo>104320553990088</merchantNo><orderNo>2439665</orderNo><custTranId>1043205539900882439665</custTranId><tranCode>06</tranCode><tranTime>20190704163313</tranTime><tranAmount>0.01</tranAmount><tranStatus>2</tranStatus><unionPaySeq></unionPaySeq></orderTrans><orderTrans><tranSeq>66807492</tranSeq><merchantNo>104320553990088</merchantNo><orderNo>2439665</orderNo><custTranId>1043205539900882439665</custTranId><tranCode>06</tranCode><tranTime>20190704163414</tranTime><tranAmount>0.01</tranAmount><tranStatus>2</tranStatus><unionPaySeq></unionPaySeq></orderTrans><orderTrans><tranSeq>66807495</tranSeq><merchantNo>104320553990088</merchantNo><orderNo>2439665</orderNo><custTranId>1043205539900882439665</custTranId><tranCode>06</tranCode><tranTime>20190705092338</tranTime><tranAmount>0.01</tranAmount><tranStatus>1</tranStatus><unionPaySeq></unionPaySeq></orderTrans></body></res>";JSONObject jsonObject1 = XmlToJsonUtil.xml2Json(returnObj);System.out.println(jsonObject1);}

3.结果

{"header":{"msgId":"0000211","hdlSts":"A","bdFlg":"0"},"body":{"orderTrans":[{"tranSeq":"66807478","tranTime":"20190704134549","orderNo":"2439665","tranCode":"01","tranAmount":"0.01","merchantNo":"104320553990088","tranStatus":"1"},{"tranSeq":"66807491","tranTime":"20190704163313","orderNo":"2439665","custTranId":"1043205539900882439665","tranCode":"06","tranAmount":"0.01","merchantNo":"104320553990088","tranStatus":"2"},{"tranSeq":"66807492","tranTime":"20190704163414","orderNo":"2439665","custTranId":"1043205539900882439665","tranCode":"06","tranAmount":"0.01","merchantNo":"104320553990088","tranStatus":"2"},{"tranSeq":"66807495","tranTime":"20190705092338","orderNo":"2439665","custTranId":"1043205539900882439665","tranCode":"06","tranAmount":"0.01","merchantNo":"104320553990088","tranStatus":"1"}],"qrOvertimeFlag":"Y"}
}

复杂的xml也能转成功，很棒！！！

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