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[英]java.lang.IllegalArgumentException: Invalid cookie name-value pair
[英]How to get value from name-value pair property from XML in Java
以下是本地xml文件的內容
<configuration>
<property>
<name>test</name>
<value>A</value>
</property>
</configuration>
如何在Java中讀取值“ A”? 這是我正在用Java測試的代碼
Properties properties = new Properties();
FileInputStream fis = new FileInputStream("path to file");
properties.load(fis);
String test = properties.getProperty("test");
System.out.println(test);
Java代碼有問題嗎? 我似乎無法將名稱與值相關聯。 此外,由於實際文件包含多對名稱-值,因此無法讀取屬性值。
File file = new File("path to file");
DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory
.newInstance();
DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
Document dom = documentBuilder.parse(file);
Element docEle = dom.getDocumentElement();
NodeList nl = docEle.getChildNodes();
ArrayList<String> names = new ArrayList<String>();
ArrayList<String> values = new ArrayList<String>();
if (nl != null) {
int length = nl.getLength();
for (int i = 0; i < length; i++) {
if (nl.item(i).getNodeType() == Node.ELEMENT_NODE) {
Element el = (Element) nl.item(i);
if (el.getNodeName().contains("configuration")) {
names.add( el.getElementsByTagName("name").item(0).getTextContent());
System.out.println(el.getElementsByTagName("name").item(0).getTextContent());
values.add( el.getElementsByTagName("value").item(0).getTextContent());
System.out.println(el.getElementsByTagName("value").item(0).getTextContent());
}
}
}
}
您可以這樣做:
File file = new File("path to file");
DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory
.newInstance();
DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
Document document = documentBuilder.parse(file);
document.getDocumentElement().normalize();
Element docEle = document.getDocumentElement();
NodeList nl = docEle.getElementsByTagName("property");
ArrayList names = new ArrayList();
ArrayList values = new ArrayList();
if (nl != null) {
int length = nl.getLength();
//System.out.println(length);
for (int i = 0; i < length; i++) {
if (nl.item(i).getNodeType() == Node.ELEMENT_NODE) {
Element el = (Element) nl.item(i);
if (el.getNodeName().contains("property")) {
names.add( el.getElementsByTagName("name").item(0).getTextContent());
//System.out.println(el.getElementsByTagName("name").item(0).getTextContent());
values.add( el.getElementsByTagName("value").item(0).getTextContent());
//System.out.println(el.getElementsByTagName("value").item(0).getTextContent());
}
}
}
}
這會將所有值添加到ArrayLists中,然后您可以根據需要訪問它們。 或者,您也可以像我留下的評論一樣打印它們。
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