addcommand.java

利用JAVA开发的简单考试系统

package controller.command;
import model.persistency.*;
import model.condition.visitor.*;
import java.sql.*;
/**
 *
 * <p>Title: </p>
 * 添加命令
 * <p>Description: </p>
 * 接收界面发出的添加命令，通过此类与MODEL层联系，调用model层的添加
 */
public class AddCommand implements OperateCommand{
	PersistentItem item;
	public AddCommand(PersistentItem itm){
		item = new PersistentItem(itm.getOid());
		item = itm;
	}
	 public void excute() {
		Visitor v = new SingleVisitor();
		try{
		v.add(item);
		}catch(SQLException e){System.out.println("sql wrong");}
	 }
}