xml字符串转换为实体类对象(子节点中重复参数(情况二))-优快云博客

本文介绍了一种使用Java解析XML字符串并提取特定元素文本的方法，包括校验字段、流水号等关键信息，同时展示了如何遍历子元素列表并收集所有商品编号。

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import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;

String xml = "<itemInfoQueryRequestDown>"
                   + "<checkword>校验字段</checkword>"
                   + "<serialNumber>流水号</serialNumber>"
                   + "<warehouseCompanyCode>第三方仓储公司代码</warehouseCompanyCode>"
                   + "<companyCode>公司代码</companyCode>"
                   + "<pageIndex>指定页</pageIndex>"
                   + "<itemCodeList>"
                       + "<itemCode>商品编号</itemCode>"
                       + "<itemCode>商品编号</itemCode>"
                       + "<itemCode>商品编号</itemCode>"
                   + "</itemCodeList>"
                   + "</itemInfoQueryRequestDown>";
       Document doc = null;
       List<String> list = new ArrayList<String>();
       try {
           doc = DocumentHelper.parseText(xml);
           Element rootElt = doc.getRootElement(); // 获取根节点
           String checkword = rootElt.elementTextTrim("checkword");
           String serialNumber = rootElt.elementTextTrim("serialNumber");
           String warehouseCompanyCode = rootElt.elementTextTrim("warehouseCompanyCode");
           String companyCode = rootElt.elementTextTrim("companyCode");
           String pageIndex = rootElt.elementTextTrim("pageIndex");

           Iterator<Element>iters = rootElt.elementIterator("itemCodeList");
           Element info = iters.next();

           for (Iterator<Element> biaoInfo = info.elementIterator(); biaoInfo
                    .hasNext();) {
                // 得到itemCode中文本值
                list.add(biaoInfo.next().getText());
            }
           String s = "";
           if (list.size() != 0) {
                for (int i = 0; i < list.size(); i++) {
                   String str = list.get(i);
                   if (i == list.size() - 1) {
                       s += str ;
                   }else{
                       s += str + ",";
                   }
               }
           }
           System.out.println(s);
       } catch (DocumentException e) {
           e.printStackTrace();
       }