Tool class xmlutil (parse and return soap and XML messages to obtain the value of the target node)

1. Support jar package （ There may be version conflicts ）

<!-- https://mvnrepository.com/artifact/org.jdom/jdom -->
<dependency>
    <groupId>org.jdom</groupId>
    <artifactId>jdom</artifactId>
    <version>1.1.3</version>
</dependency>

2.XMLUtil

import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
import org.xml.sax.InputSource;

import java.io.IOException;
import java.io.StringReader;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/** *  Parsing returns soap and xml message , Get target node value  * @author luoyan * @date 2019-06-04 */
public class XMLUtil {
    

    /** *  The string type of XML  Turn it into Docunent Document structure  * @param parseStrXml  To be converted XML character string  * @return */
    public static Document strXmlToDocument(String parseStrXml) {
    
        StringReader read = new StringReader(parseStrXml);
        // Create a new input source SAX  The parser will use  InputSource  Object to determine how to read  XML  Input 
        InputSource source = new InputSource(read);
        // Create a new SAXBuilder
        //  Newly created constructor 
        SAXBuilder sb = new SAXBuilder();
        Document doc = null;
        try {
    
            doc = sb.build(source);
        } catch (JDOMException e) {
    
            e.printStackTrace();
        } catch (IOException e) {
    
            e.printStackTrace();
        }
        return doc;

    }

    /** *  Get the value according to the target node name  * @param doc  Document structure  * @param finalNodeName  The node name  * @return */
    public static String getValueByElementName(Document doc, String finalNodeName) {
    
        Element root = doc.getRootElement();
        HashMap<String, Object> map = new HashMap<String, Object>();
        Map<String, Object> resultmap = getChildAllText(doc, root, map);
        String result = (String) resultmap.get(finalNodeName);
        return result;
    }

    /** *  Recursively obtain the value of the child node  * @param doc  Document structure  * @param e  Node elements  * @param resultmap  Recursively store values in map in  * @return */
    public static Map<String, Object> getChildAllText(Document doc, Element e, HashMap<String, Object> resultmap) {
    
        if (e != null) {
    
            // If there are child nodes 
            if (e.getChildren() != null) {
    
                List<Element> list = e.getChildren();
                // Cyclic output 
                for (Element el : list) {
    
                    // If child nodes still exist , Then recursively get 
                    if (el.getChildren().size() > 0) {
    
                        getChildAllText(doc, el, resultmap);
                    } else {
    
                        // Press the leaf node value into map
                        resultmap.put(el.getName(), el.getTextTrim());
                    }
                }
            }
        }
        return resultmap;
    }

    public static void main(String[] args) {
    
        String str = "<soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"><soap:Body><ns2:sendtransactioninformationResponse xmlns:ns2=\"http://webservice.information.xqx.com/\"><response></response></ns2:sendtransactioninformationResponse></soap:Body></soap:Envelope>";
        Document document = strXmlToDocument(str);
        String response = getValueByElementName(document, "response");
        System.out.println("---->"+response);
    }
}