domxml.java

一个J2EE SSH功能的实现

package com.sxjsuper.util;

import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

public class DomXml 
{
	private String path="";

	public String getPath() {
		return path;
	}

	public void setPath(String path) {
		this.path = path;
	}
	
	public Map listSqlXml()
	{
		HashMap<String, String> sqlMap=new HashMap<String, String>();
		String name = null,value = null;
		File file=new File(path);
		DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();
		try 
		{
			DocumentBuilder builder=factory.newDocumentBuilder();
			Document doc=builder.parse(file);
			NodeList nodeList=doc.getElementsByTagName("sql");
			for(int i=0;i<nodeList.getLength();i++)
			{
				Node child=nodeList.item(i);
				NodeList childList=child.getChildNodes();
				for(int j=0;j<childList.getLength();j++)
				{
					Node node=childList.item(j);
					if(j%2==0)
					{
						continue;
					}
					value=node.getFirstChild().getNodeValue();
					if(j<2)
						name=node.getFirstChild().getNodeValue();
				}
				sqlMap.put(name, value);
			}
			return sqlMap;
		} 
		catch (ParserConfigurationException e)
		{
			e.printStackTrace();
			return null;
		} 
		catch (SAXException e) 
		{
			e.printStackTrace();
			return null;
		}
		catch (IOException e) 
		{
			e.printStackTrace();
			return null;
		}
	}
}