Servlet+Jdbc簡單實例(1)

java代碼:

package com.wangbingan.item;

import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class InsertServlet extends HttpServlet {

	private static final long serialVersionUID = -9195205002802586777L;

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws IOException {
		// 數據庫連接
		Connection conn = null;
		// Statement裏面有不少方法
		PreparedStatement stmt = null;
		// 接收,獲得請求的值
		String id = request.getParameter("id");
		String name = request.getParameter("name");
		String phone = request.getParameter("phone");
		// 看看這些值是否是想要的
		System.out.println("id=" + id + "\n" + "name=" + name + "\n" + "phone="
				+ phone);
		try {
			// 加載數據庫驅動
			Class.forName("com.mysql.jdbc.Driver");
			// 獲取數據庫鏈接
			conn = DriverManager.getConnection(
					"jdbc:mysql://127.0.0.1:3307/test", "root", "wangbingan");
			// 拼接SQL
			stmt = conn
					.prepareStatement("insert into best(id,name,phone)values(?,?,?)");
			stmt.setInt(1, Integer.valueOf(id));
			stmt.setInt(2, Integer.valueOf(name));
			stmt.setInt(3, Integer.valueOf(phone));
			// 執行sql
			stmt.executeUpdate();
			System.out.println("[OK]");
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			System.out.println("[ERROR]");
		}

	}

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws IOException {

		this.doPost(request, response);
	}
}

xml文件:

<servlet>
		<servlet-name>insert</servlet-name>
		<servlet-class>com.wangbingan.item.InsertServlet</servlet-class>
	</servlet>
	<servlet-mapping>
		<servlet-name>insert</servlet-name>
		<url-pattern>/insert</url-pattern>
	</servlet-mapping>

請求的URL：http://localhost:8080/Vip/insert?id=9&name=9&phone=9

參考文獻:

1. html調用servlet:

   http://www.it165.net/DWeb/html/201503/3427.html

2. preparedStatement和Statement的區別:

   http://zhidao.baidu.com/link?url=CFGRSsfw0FEQmzxeGKJrKBFC3VtK1jC8_GXif4ZJQzUVVaqJhh-GA6NztkTWfkeLPTFZkTv1sKS8a1r_1tIy4K

  3.java.lang.ClassNotFoundException: com.mysql.jdbc.Driver 解決方法:

       http://www.cnblogs.com/swxj/archive/2013/06/05/3119206.html