SAXReader 解析xml「建议收藏」

大家好，又见面了，我是你们的朋友全栈君。使用SAXReader解析xml

SAXReader的read方法有几种不同的重载,大概包括以下几种
1.read(File file)  传入文件对象
2.read(InputSource in) 传入InputSource
3.read(InputStream in)  传入流
……
其实最终的格式都是转换为InputSource的格式

package Document;

import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

public class SAXRead {


/**
* 传入xml字符串
* @param xml
* @return
* @throws DocumentException
*/
private static Document paseXmlStr2Document(String xml) throws DocumentException{

SAXReader reader = new SAXReader();
Document doc = reader.read(new ByteArrayInputStream(xml.getBytes()));
return doc;
}
/**
* 传入xml文件路径
* @param filePath
* @return
* @throws DocumentException
* @throws FileNotFoundException
*/
private static Document paseFileStr2Document1(String filePath) throws DocumentException, FileNotFoundException{

SAXReader reader = new SAXReader();
File xmlFile = new File(filePath);
return reader.read(xmlFile);
}
/**
* 传入xml文件路径
* @param filePath
* @return
* @throws DocumentException
* @throws FileNotFoundException
*/
private static Document paseFileStr2Document(String filePath) throws DocumentException, FileNotFoundException{

SAXReader reader = new SAXReader();
File xmlFile = new File(filePath);
FileInputStream fis = new FileInputStream(xmlFile);
return reader.read(fis);
}

public static void main(String[] args) {

try {

Document doc = paseFileStr2Document1(“D:/s.xml”);
Element root = doc.getRootElement();
//打印根节点下某节点名对应的节点值
System.out.println(root.elementText(“节点名”));
//打印根节点的名字
System.out.println(root.getName());
} catch (FileNotFoundException e) {

e.printStackTrace();
} catch (DocumentException e) {

e.printStackTrace();
}
}
}