java element xml 解析
在Java中,可以使用许多不同的库来解析XML文件。以下是几个常用的库和解析XML的示例代码:
1. 使用DOM解析器:
```java
import org.w3c.dom.*;
l.parsers.*;
import java.io.*;
public class XMLParser {
public static void main(String[] args) {
try {
File file = new File("l");
DocumentBuilderFactory factory = wInstance();
DocumentBuilder builder = wDocumentBuilder();
Document doc = builder.parse(file);
// 获取根元素
Element root = DocumentElement();
// 获取子元素
NodeList childNodes = ChildNodes();
for (int i = 0; i < Length(); i++) {
Node node = childNodes.item(i);
if (NodeType() == Node.ELEMENT_NODE) {
Element element = (Element) node;
String tagName = TagName();
String textContent = TextContent();
System.out.println(tagName + ": " + textContent);
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
```
2. 使用SAX解析器:
```java
l.sax.*;
l.sax.helpers.*;
import java.io.*;
public class XMLParser {
public static void main(String[] args) {
try {
File file = new File("l");
SAXParserFactory factory = wInstance();
SAXParser saxParser = wSAXParser();
DefaultHandler handler = new DefaultHandler() {
boolean isElement = false;
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
isElement = true;
}
public void endElement(String uri, String localName, String qName) throws SAXException {
isElement = false;
}
public void characters(char ch[], int start, int length) throws SAXException {
if (isElement) {
String content = new String(ch, start, length);
System.out.println(content);
}
}
};
saxParser.parse(file, handler);
} catch (Exception e) {
e.printStackTrace();
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