这篇文章主要介绍了Java根据XPATH批量替换XML节点中的值，文章围绕主题展开详细的内容介绍，具有一定的参考价值，需要的小伙伴可以参考一下!
测试环境：
JDK 1.8.0_25
代码实操：
message.xml文件
<Request service="SALE_ORDER_SERVICE" lang="zh-CN"> <Head> <AccessCode>xxxxxxxxxx12Ur8v6qkYAaOf</AccessCode> <Checkword>xxxxxxxxxxkmPif7Z35UEJjrR</Checkword> </Head> <Body> <SaleOrderRequest> <CompanyCode>Wxxxxxxxxxx</CompanyCode> <SaleOrders> <SaleOrder> <WarehouseCode>xxxxxxx</WarehouseCode> <ErpOrder>SO20220519xxxx13190</ErpOrder> <ErpOrderType>3</ErpOrderType> <orderType>10</orderType> <receiverAddress>未知地址</receiverAddress> <OrderReceiverInfo> <ReceiverCompany>个人</ReceiverCompany> <ReceiverName>凯琳</ReceiverName> <ReceiverCountry>中国</ReceiverCountry> <ReceiverProvince>广东省</ReceiverProvince> <ReceiverCity>江门市</ReceiverCity> <ReceiverArea>蓬江区</ReceiverArea> <ReceiverAddress>详细地址</ReceiverAddress> </OrderReceiverInfo> <OrderItems> <OrderItem> <SkuNo>1001178</SkuNo> <ItemName>保妇康栓1.74g*14粒/盒</ItemName> <ItemQuantity>1</ItemQuantity> </OrderItem> <OrderItem> <SkuNo>1008766</SkuNo> <ItemName>美团小药箱</ItemName> <ItemQuantity>1</ItemQuantity> </OrderItem> </OrderItems> </SaleOrder> </SaleOrders> </SaleOrderRequest> </Body> </Request>
XMLHelper.java
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.List;
public class XMLHelper {
// XML文件转XML文档对象
public static Document xmlFileToDocument(String filePath) throws Exception {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setValidating(false);
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(new FileInputStream(new File(filePath)));
return doc;
}
// XML文档转XML字符串
public static String docToString(Document doc) throws TransformerException {
TransformerFactory ft = TransformerFactory.newInstance();
Transformer ff = ft.newTransformer();
ff.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
ff.setOutputProperty("encoding", "gbk");
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ff.transform(new DOMSource(doc), new StreamResult(bos));
return bos.toString();
}
// XML字符串转XML文档对象
public static Document stringToDocument(String xmlData) throws Exception {
StringReader sr = new StringReader(xmlData);
InputSource is = new InputSource(sr);
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse(is);
return doc;
}
// 替换单个XPATH指定的XML节点值
public static void replaceXmlNodeValue(Document doc, String nodePath, String value) throws XPathExpressionException {
XPathFactory factory = XPathFactory.newInstance();
XPath xpath = factory.newXPath();
// 匹配需替换的节点
NodeList nodeList = (NodeList) xpath.evaluate(nodePath, doc, XPathConstants.NODESET);
// 单个XPATH可能匹配多个XML节点，所以需要遍历替换
for (int i = 0; i < nodeList.getLength(); i++) {
nodeList.item(i).setTextContent(value);
}
}
// 批量多个XPATH指定的XML节点值
public static void replaceXmlNodesValue(Document doc, List<String> nodesPath, String value) throws XPathExpressionException {
for (String nodePath : nodesPath) {
XMLHelper.replaceXmlNodeValue(doc, nodePath, value);
}
}
public static void replaceReceiverAddress(Document doc, String value) throws Exception{
List nodesPath= new ArrayList();
nodesPath.add(".//OrderReceiverInfo/ReceiverAddress");
nodesPath.add(".//receiverAddress");
XMLHelper.replaceXmlNodesValue(doc, nodesPath, value);
}
public static void main(String []args) {
try {
Document doc = XMLHelper.xmlFileToDocument("message.xml");
// 替换地址
XMLHelper.replaceReceiverAddress(doc, "吉祥街道幸福社区1号大楼23号");
String newXml = XMLHelper.docToString(doc);
System.out.println(newXml);
} catch (Exception e) {
e.printStackTrace();
}
}
}