java根据xml节点地址获取指定节点内容

备好几个前同事问过怎么获取xml指定节点内容后，终于决定写个工具类，今天特地分享给大家，写的不好，不要喷

maven依赖包

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<dependency> <groupId>dom4j</groupId> <artifactId>dom4j</artifactId> <version>1.6.1</version> </dependency>

　　

XmlUtil

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import java.util.*; import java.util.stream.Collectors;   import org.dom4j.*;   public class XmlUtil {   /** * 获取XML指定节点内容 * @param xml xml内容 * @param attrName 节点名称（例如：TranData.OutputData.Result） * @return * @throws Exception */ public static String getXmlAttrValue(String xml,String attrName) throws Exception { if (null==xml||xml.equals("")||null==attrName||attrName.equals("")){ return null; } String[] attrs = attrName.split("\\."); int length = attrs.length; String result = null; // 将xml格式字符串转化为DOM对象 Document document = DocumentHelper.parseText(xml); // 获取根结点对象 Element element = document.getRootElement(); List<Element> elements = Arrays.asList(element); for (int i = 0; i < length; i++) { Map<String,Element> elementMap = elements.stream().collect(Collectors.toMap(e->e.getName(),e->e)); if (elementMap.containsKey(attrs[i])){ if (i==length-1){ result = elementMap.get(attrs[i]).asXML(); break; }else { elements = elementMap.get(attrs[i]).elements(); } }else { throw new Exception("Node does not exist:"+attrName); } } return result; } }

　　

测试代码

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public static void main(String[] args) throws Exception { String xml = "<?xml version=\"1.0\" encoding=\"GBK\"?>\n" + "<TranData>\n" + " <ClientInfo>\n" + " <resultCode>0</resultCode>\n" + " <resultMsg>查询成功</resultMsg>\n" + " <transDate>2023-08-30</transDate>\n" + " </ClientInfo>\n" + " <InputData>\n" + " <PolicyNum>321052800581541</PolicyNum>\n" + " </InputData>\n" + " <OutputData>\n" + " <Result>\n" + " <SubPolBackFee>111.52</SubPolBackFee>\n" + " <InceptContValue>0</InceptContValue>\n" + " <OtherDeduct>1430.48</OtherDeduct>\n" + " <AccountChg>0</AccountChg>\n" + " <CashValue>1542.00</CashValue>\n" + " <BankCode>103</BankCode>\n" + " <BankCodeName>中国农业银行</BankCodeName>\n" + " <BankAccNo>6228480320236711910</BankAccNo>\n" + " <AccName>快快快</AccName>\n" + " <SumPrem>1542</SumPrem>\n" + " <SumAmnt>100000</SumAmnt>\n" + " <PayCount>1</PayCount>\n" + " <LiveInsuaccMoney>0.0</LiveInsuaccMoney>\n" + " <BonusInsuaccMoney>0.0</BonusInsuaccMoney>\n" + " <LoanAmnt></LoanAmnt>\n" + " <LoanInterest></LoanInterest>\n" + " </Result>\n" + " </OutputData>\n" + "</TranData>\n"; String result = getXmlAttrValue(xml,"TranData.OutputData.Result.BankCodeName"); System.out.println(result); }

　　

测试结果输出

 

 

 

另外，如果要获取xml节点得值可以修改代码，

Element.getText()、Element.getStringValue()都可以获取xml节点值