JAVA XML子解析

Question

我有一個簡單的XML

 <task id ="MyMethod"> 
      <taskParameter>"Redicted"</taskParameter> 
      <taskParameter>"ServerInitiated"</taskParameter> 
     </task> 
     <task id ="NoRedictedMethod"> 
      <taskParameter>"NoRedicted"</taskParameter> 
     </task> 

，我想用Java來解析它，我試圖用正確的嵌套

 NodeList ParentList = doc.getElementsByTagName("task"); 
     for (int i = 0; i < ParentList.getLength(); i++) { 
      System.out.println("Parent is "+ ParentList.item(i).getTextContent()); 

      NodeList childList = ParentList.item(i).getChildNodes(); 

      for (int j = 0; j < childList.getLength(); j++) { 
       System.out.println("Clild is "+ childList.item(j).getTextContent()); 
      } 
     } 

我的結果是不正確的打印。我究竟做錯了什麼？

PS。我想打印這樣的東西

Parent is MyMethod 
    Clild is Redicted 
    Clild is ServerInitiated 
    Parent is NoRedictedMethod 
    Clild is NoRedicted 

Answer 1

你打電話給父母是一個屬性節點。因此，要檢索改變你的代碼：

編輯，以避免空格字符在解析

NodeList ParentList = doc.getElementsByTagName("task"); 
     for (int i = 0; i < ParentList.getLength(); i++) { 
      NamedNodeMap attributes = ParentList.item(i).getAttributes(); 

      for (int index = 0; index < attributes.getLength(); index++) { 
       Node attribute = attributes.item(index); 
       System.out.println("Parent is "+ attribute.getNodeValue()); 
      } 

      NodeList childList = ParentList.item(i).getChildNodes(); 

      for (int j = 0; j < childList.getLength(); j++) { 
       String text = childList.item(j).getTextContent(); 
       if (text.trim().length() != 0) { 
       System.out.println("Clild is "+ text); 
       } 
      } 
     }