org.w3c.dom
sax
digest
呵呵。例子网上很多的
sax
digest
呵呵。例子网上很多的
解决方案 »
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import java.io.File;import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;import org.w3c.dom.Document;
import org.w3c.dom.NodeList;public class ParseByDom {
public void parseXMLByDom(String filePath){
try {
File file = new File(filePath);
System.out.println(file.exists());
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document dom = db.parse(file);
NodeList servlet = dom.getElementsByTagName("servlet");
System.out.println(servlet.item(0).getNodeName());
NodeList s1 = servlet.item(0).getChildNodes(); System.out.println(s1.item(1).getNodeName());
System.out.println(s1.item(1).getFirstChild().getNodeName());
NodeList servletName = dom.getElementsByTagName("servlet-name");
System.out.println(servletName.getLength());
NodeList sn = servletName.item(0).getChildNodes();
System.out.println(sn.item(0).getNodeValue());
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} /**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
ParseByDom pd = new ParseByDom();
//解析test.xml
pd.parseXMLByDom("test.xml");
}}
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;public class ParseBySax { /**
* @param args
*/
public static void main(String[] args) {
try {
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser sp = spf.newSAXParser();
sp.parse("test.xml", new SAXParserHander());
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}}class SAXParserHander extends DefaultHandler{
//文档开始事件
public void startDocument() throws SAXException{
System.out.println("文档开始==");
}
//文档结束事件
public void endDocument() throws SAXException{
System.out.println("文档结束==");
}
public void characters(char[] ch,int start ,int length) throws SAXException{
String chs = new String (ch,start,length);
System.out.println(chs);
}
public void startElement(String namespaceURL,String localName,String qName,
Attributes atts)throws SAXException{
System.out.println("开始元素:" + qName +"==");
}
public void endElement(String namespaceURL,String localName,String qName
)throws SAXException{
System.out.println("结束元素:" + qName +"==");
}
}
比如说我想使用web-inf文件夹中的web.xml
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;/** 此类是连接数据库(XML文件)类, 使用了StelsXML JDBC Driver */
public class DBConn
{
private Connection conn = null;
private Statement stmt = null; /** 构造函数 */
public DBConn()
{
try
{
Class.forName("jstels.jdbc.xml.XMLDriver");
this.conn = DriverManager
.getConnection("jdbc:jstels:xml:schemaClass.xml");
this.stmt = conn.createStatement();
}
catch (Exception e)
{
e.printStackTrace();
}
} /** 尝试执行SQL语句 */
public boolean execute(String sql)
{
try
{
return this.stmt.execute(sql);
}
catch (SQLException e)
{
e.printStackTrace();
return false;
}
} /** 尝试执行SQL语句,并返回一个结果集对象 */
public ResultSet executeQuery(String sql)
{
try
{
return this.stmt.executeQuery(sql);
}
catch (SQLException e)
{
e.printStackTrace();
return null;
}
} /** 关闭连接数据库 */
public void close()
{
try
{
this.conn.close();
}
catch (SQLException e)
{
System.out.println("连接关闭事发生错误!");
e.printStackTrace();
}
}
}