?? commonselectcp.java
字號:
//通用查詢的xml配置解析器
package find;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.servlet.ServletException;
import javax.servlet.RequestDispatcher;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.util.Properties;
import org.xml.sax.Attributes;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.SAXException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import java.net.URL;
import java.net.URLDecoder;
import java.io.File;
public class CommonSelectCP extends DefaultHandler{
//private String currentSet;
//private String currentName;
private int step;//用于xml元素解析步驟
private StringBuffer currentValue = new StringBuffer();
public CommonSelectCP(){
this.clear();
}
//清空
public void clear(){
}
//定義開始解析元素的方法. 這里是將<xxx>中的名稱xxx提取出來.
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
currentValue.delete(0, currentValue.length());
if(qName.equals("標題名")) this.step = 5;
}
//這里是將<xxx></xxx>之間的值加入到currentValue
public void characters(char[] ch, int start, int length) throws SAXException {
currentValue.append(ch, start, length);
}
//在遇到</xxx>結束后,
public void endElement(String uri, String localName, String qName) throws SAXException {
this.step++;
//props.put(qName.toLowerCase(), currentValue.toString().trim());
}
public void parse(String filename) throws Exception {
SAXParserFactory factory = SAXParserFactory.newInstance();
//factory.setNamespaceAware(false);
//factory.setValidating(false);
SAXParser parser = factory.newSAXParser();
try{
parser.parse(new File(filename).toURL().toString(), this);
}finally{
factory=null;
parser=null;
}
}
}
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