java - 使用 java 从复杂的 XML 中读取值

Question

我正在尝试使用 JAVA 读取 XML 文件。XML 文件:-<

<?xml version="1.0" encoding="UTF-8"?>


<document>
 <testCaseDataName>
  <id>1</id >
  <testCaseName>EditTest</testCaseName >
  <expectedResult>true</expectedResult >

 </testCaseDataName>
 <testCaseDataName>
  <id>2</id >
  <testCaseName>AddTest</testCaseName >
  <expectedResult>true</expectedResult>
  <parameter>
    <key>featues</key >
    <value>new</value>
    </parameter>
 </testCaseDataName>

  <testCaseDataName>
  <id>3</id >
  <testCaseName>AddTest</testCaseName >
  <expectedResult>true</expectedResult>
  <parameter>
    <key>projectType</key >
    <value>old</value>
    </parameter>
    <parameter>
    <key>Name</key >
    <value>Marvel</value>
    </parameter>
    <parameter>
    <key>status</key >
    <value>ACTIVE</value>
    </parameter>
    <parameter>
    <key>canOrder</key >
    <value>Yes</value>
    </parameter>
 </testCaseDataName>
 <testCaseDataName>
  <id>4</id >
  <testCaseName>AddTest</testCaseName >
  <expectedResult>empty</expectedResult>
  <parameter>
    <key>projectType</key >
    <value>GEN</value>
    </parameter>
    <parameter>
    <key>Name</key >
    <value>HPM</value>
    </parameter>
    <key>no status</key >
    <value>ACTIVE</value>
    <parameter>
    <key>canOrder</key >
    <value>Yes</value>
    </parameter>
 </testCaseDataName>

 </document>

我正在尝试将参数中的键和值读取到 HashMap 。这是我的代码:-

public class JDOM {

    public static void main(String[] args) throws JDOMException, IOException {
        // TODO Auto-generated method stub
        File xsdfile = new File("file.xsd");
        XMLReaderJDOMFactory schemafac = new XMLReaderXSDFactory(xsdfile);
        SAXBuilder builder = new SAXBuilder(schemafac);
        //Document doc = new SAXBuilder().build(new File("testdbcsv/ACL.xml"));
        Document doc = builder.build(new File("file.xml"));
        Element root = doc.getRootElement();
        for (Element testcase : root.getChildren()) {
            String id = testcase.getChildText("id");
            String testCaseName = testcase.getChildText("testCaseName");
            String expectedResult = testcase.getChildText("expectedResult");
            System.out.println(expectedResult);
            HashMap<String,String> parameters = new LinkedHashMap<String,String>();
            Element params = testcase.getChild("parameter");
            System.out.println(params);
            if (params != null ) {
                Iterator<Element> it = params.getChildren().iterator();
                while (it.hasNext()) {
                    Element key = it.next();
                    Element val = it.next();
                    parameters.put(key.getValue(), val.getValue());
                }
            }
            parameters.put("expectedResult", expectedResult);
            ObjectMapper obj = new ObjectMapper();
            String jsonString = obj.writeValueAsString(parameters);
            System.out.println(jsonString);

         }
        }
    }

我的代码仅读取第一组键和值，而不读取其他键和值。输出是:-

{"expectedResult":"true"}
{"featues":"w,f","expectedResult":"true"}
{"projectType":"MEMOGEN","expectedResult":"true"}
{"projectType":"MEMOGEN","expectedResult":"empty"} 

我希望另一个键值也位于字符串中。任何人都可以帮助并修复我的代码

Answer 1

您正在使用

testcase.getChild("parameter")

getChild() 返回具有给定名称的第一个子元素。您希望所有子项都命名为“parameter”。所以你需要打电话

testcase.getChildren("parameter")

并迭代所有返回的元素。