一个根据配置文件对数据库进行增删改查的三层架构解决方法

<?xml version="1.0" encoding="UTF-8"?>
<root>
	<Table name="country">
		<countrycode type="string" UIDisplay="true">
			<UIControl type="text" label="Country Code"/>
		</countrycode>
		<countryname type="string" UIDisplay="true">
			<UIControl type="text" label="Country Name"/>
		</countryname>
		<createdby type="string" UIDisplay="false" />
		<createdat type="datetime" UIDisplay="false" />
		<updatedby type="string" UIDisplay="false" />
		<updatedat type="datetime" UIDisplay="false" />
	</Table>
</root>

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
import java.awt.BorderLayout;
import javax.swing.JButton;
import java.util.TreeMap;

public class ProjectForm extends JFrame{
	public String nameString;
	public JPanel panel ;
	public TreeMap<String, JTextField> TextFieldList = new TreeMap<String,JTextField>();
	public ProjectForm() {
		
		panel = new JPanel();
		getContentPane().add(panel, BorderLayout.CENTER);
		panel.setLayout(null);
		
		JPanel panel_1 = new JPanel();
		panel_1.setBounds(82, 5, 265, 33);
		panel.add(panel_1);
		
		JButton btnNew = new JButton("New");
		panel_1.add(btnNew);
		
		JButton btnSave = new JButton("Save");
		panel_1.add(btnSave);
		
		JButton btnClear = new JButton("Clear");
		panel_1.add(btnClear);
		
		JButton btnDelete = new JButton("Delete");
		panel_1.add(btnDelete);
	}
}

import java.io.File;
import java.util.List;
import javax.swing.JLabel;
import javax.swing.JTextField;
import org.jdom2.*;
import org.jdom2.input.SAXBuilder;

public class FormCreator {
	static ProjectForm CreateForm(String name)
	{
		ProjectForm form = new ProjectForm();
		form.nameString = name;
		String filename = "D:\\work eclipse\\1.xml";
		int topx = 20;
		int topy = 80;
		int Labelwidth = 100;
		int LabelHeight = 15;
		int gapy = 30;
		int textwidth = 300;
		try 
		{
			SAXBuilder builder = new SAXBuilder();
			org.jdom2.Document document;
			File file = new File(filename);
			document = builder.build(file);
			Element rootElement = document.getRootElement();
			List<Element> tableList = rootElement.getChildren();
			
			for (int i = 0; i < tableList.size(); i++) 
			{
				Element node = tableList.get(i);
				String tNameString = node.getAttribute("name").getValue();
				if(!tNameString.equalsIgnoreCase(name))
				{
					continue;
				}
				List<Element> tablefeilds = node.getChildren();
				for(int j=0;j<tablefeilds.size();j++)
				{
					Element feildnode = tablefeilds.get(j);
					if(!"true".equalsIgnoreCase(feildnode.getAttribute("UIDisplay").getValue()))
					{
						continue;
					}
					List<Element> UIfeilds = feildnode.getChildren();
					for(int k=0;k<UIfeilds.size();k++)
					{
						Element UIfeild = UIfeilds.get(k);
						Attribute attribute = UIfeild.getAttribute("label");
						if(attribute != null)
						{
							JLabel label= new JLabel(attribute.getValue());
							label.setBounds(topx,topy+gapy*j,Labelwidth,LabelHeight);
							form.panel.add(label);
						}
						attribute = UIfeild.getAttribute("type");
						if("text".equalsIgnoreCase(attribute.getValue()))
						{
							JTextField TextField= new JTextField();
							TextField.setBounds(topx+Labelwidth,topy+gapy*j,textwidth,20);
							form.panel.add(TextField);
							form.TextFieldList.put(feildnode.getName(), TextField);
						}
					}
				}
			}
			
		} 
		catch (Exception e) {
			System.out.println(e.getMessage());
		}

		return form;
	}
}