newsremovebean.java

已完成的jsp％2BjavaBean％2BServlet实例有增删改查很好的mvc源代码

package admin.manageBean;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;

public class NewsRemoveBean {
	
	private int id;
	
	public NewsRemoveBean() {
		init();
	}
	
	private void init(){
		try {
			Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	private Connection getConnection(){
		try {
			return DriverManager.getConnection("jdbc:odbc:news");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return null;
	}
	
	public int newsRemove(){
		Connection cn = getConnection();
		try {
			PreparedStatement ps;
			String rsql = "delete from news where id = ?";
			ps = cn.prepareStatement(rsql);
			ps.setInt(1, this.getId());
			if(ps.execute())
			{
				return 1;
			}else{
				return 0;
			}
			
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			try {
				cn.close();
				cn = null;
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			
		}
		return -1;
	}

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}
	
	public static void main(String[] args) {
		NewsRemoveBean n = new NewsRemoveBean();
		n.setId(2);
		n.newsRemove();
	}
}