Servlet+Jdbc简单实例(4)

java代码:

package com.wangbingan.item;

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

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class QueryServlet extends HttpServlet {

	private static final long serialVersionUID = 1L;

	public void doPost(HttpServletRequest request, HttpServletResponse response) {
		// 数据库链接
		Connection conn = null;
		// sql方法
		PreparedStatement stmt = null;
		// 结果级
		ResultSet result = null;
		// 接收传入ID
		String id = request.getParameter("id");
		try {
			// 加载驱动
			Class.forName("com.mysql.jdbc.Driver");
			// 获取数据库连接
			conn = DriverManager.getConnection(
					"jdbc:mysql://127.0.0.1:3307/test", "root", "wangbingan");
			stmt = conn.prepareStatement("select * from best where id=?");
			stmt.setInt(1, Integer.valueOf(id));
			result = stmt.executeQuery();
			if (result.next()) {

				System.out.println("姓名:" + result.getString("name") + "-电话:"
						+ result.getString("phone"));
			}
		} catch (Exception e) {
			System.out.println("[OK]");
			e.printStackTrace();
		}

	}

	public void doGet(HttpServletRequest request, HttpServletResponse response) {

		this.doPost(request, response);

	}

}