iocconfig.java

一个自制的DB framework,使用的配置方式新颖

package bits;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import javax.xml.parsers.*;

import org.w3c.dom.*;
public class IocConfig {
	private String iocConfigName;
	private String idName;
	
	public IocConfig(String iocConfigName,String idName){
		this.iocConfigName = iocConfigName;
		this.idName = idName;
		this.parseIoc();
	}

	public void parseIoc() {
		try{
			String filename = this.iocConfigName;
			DocumentBuilderFactory factory = DocumentBuilderFactory
			.newInstance();
			DocumentBuilder builder = factory.newDocumentBuilder();
			Document doc = builder.parse(new File(filename));
			Element root=doc.getDocumentElement();
			NodeList n1 = doc.getElementsByTagName("bean");
			for (int i = 0; i < n1.getLength(); i++){
				Element node = (Element) n1.item(i);
				String id = getNodeValue("id",node);
				if(id.equals(this.idName)){
					String className = getNodeValue("class",node);
					System.out.println(className);
				}
			}
		}catch(Exception e){
			e.printStackTrace();
		}
		
	}
	public String getNodeValue(String nodeName, Element node)
	{
		NodeList MyList = node.getElementsByTagName(nodeName);
		Node nodeTemp = MyList.item(0).getFirstChild();
		String strValue = nodeTemp.getNodeValue();
		return strValue;
	}
	public static void main(String args[]){
		IocConfig ioc = new IocConfig("src\\bits\\beans.xml","c");
		IocConfig ioc1 = new IocConfig("src\\bits\\beans.xml","a");
	}

}