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[英]How to Read KeyStore File Path From standalone.xml wildfly
[英]How do I read in a file path from an XML file
我正在嘗試從Java中的XML文件讀取文件路徑,但是卻找不到文件異常。 我不確定如何解決此問題。 任何幫助,將不勝感激。
這是XML文件:
<adapters>
<adapter>
<class>adapters.CSVFileAdapter</class>
<properties>
<property name="filename">C:\test.csv</property>
</properties>
</adapter>
<adapter>
<class>adapters.SNMPAdapter</class>
<properties>
<property name="target">10.100.85.135</property>
<property name="port">134</property>
</properties>
</adapter>
</adapters>
這是我的Java代碼:
public class XMLConfigurationReader {
public static List<String> load()
{
List<String> adpList = new ArrayList<String>();
try{
DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
Document doc = docBuilder.parse (new File("C:/myProject/adapters.xml"));
doc.normalize();
NodeList rootNodes = doc.getElementsByTagName("adapters");
Node rootNode = rootNodes.item(0);
Element rootElement = (Element) rootNode;
rootNodes = rootElement.getElementsByTagName("class");
for(int k=0; k<rootNodes.getLength(); k++){
Node theAdapter = rootNodes.item(k);
Element adpElement = (Element) theAdapter;
adpList.add(adpElement.getTextContent());
}
rootNodes = doc.getElementsByTagName("properties");
for (int i = 0; i < rootNodes.getLength(); i++) { // loop for properties
Node nodeData = rootNodes.item(i);
Element elementColumnDetails = (Element) nodeData;
NodeList nodeListRow = elementColumnDetails.getElementsByTagName("property");
for (int j = 0; j < nodeListRow.getLength(); j++) { // loop for property
Node nodeRow = nodeListRow.item(j);
Element elementRow = (Element) nodeRow;
if(elementRow.getAttribute("property") != null){
String property = elementRow.getTextContent().trim();
}
}
}
}catch(ParserConfigurationException e){
e.printStackTrace();
} catch (SAXException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return adpList;
}
}
您的代碼存在問題
adaptersList.item(0).getChildNodes().item(0).getNodeValue();
它應該替換為
adaptersList.item(0).getTextContent();
為了給你那個路徑名。
首先讀取一個文件:
public class FileRead {
static String string = File.separator;
public static void main(String[] args) {
File file = new File("C:"+string+"myProject"+string+"adapters.xml");
System.out.println(file.getName());
}
}
然后嘗試測試以下代碼將幫助您從xml獲取文件名:
NodeList nodeListData = xmlTableName.getElementsByTagName("properties");
for (int k = 0; k < nodeListData.getLength(); k++) { // loop for properties
Node nodeData = nodeListData.item(k);
Element elementColumnDetails = (Element) nodeData;
NodeList nodeListRow = elementColumnDetails.getElementsByTagName("property);
for (int l = 0; l < nodeListRow.getLength(); l++) { // loop for property
Node nodeRow = nodeListRow.item(l);
Element elementRow = (Element) nodeRow;
if(elementRow.getAttribute("filename")){
filePath = elementRow.getTextContent().trim();
}
}
}
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