Servlet+Jdbc简单实例(2)

java代码:

package com.wangbingan.item;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class DeleteServlet extends HttpServlet {

	private static final long serialVersionUID = -5112662931274416698L;

	public void doPost(HttpServletRequest request, HttpServletResponse response) {
		// 数据库连接
		Connection conn = null;
		// 执行sql方法
		Statement stmt = null;
		// 进入DeleteServlet，会直接进入到doPost()
		// 收集URL传入的参数
		String id = request.getParameter("id");
		try {
			// 加载驱动
			Class.forName("com.mysql.jdbc.Driver");
			// 连接数据库
			conn = DriverManager.getConnection(
					"jdbc:mysql://127.0.0.1:3307/test", "root", "wangbingan");
			// 获取执行sql方法
			stmt = conn.createStatement();
			// sql
			String sql = "delete from best where id=" + id;
			// 执行sql
			boolean result = stmt.execute(sql);
			if (!result) {

				System.out.println("[OK]");
			}
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	public void doGet(HttpServletRequest request, HttpServletResponse response) {

		this.doPost(request, response);
	}

}