JS操作数据库的实例代码

  一、创建SQL Server数据库

  建库:test

  建表:

  

复制代码 代码如下:

  /*

  Navicat MySQL Data Transfer

  Source Server         : localhost

  Source Server Version : 50520

  Source Host           : localhost:3306

  Source Database       : mo

  Target Server Type    : MYSQL

  Target Server Version : 50520

  File Encoding         : 65001

  Date: 2013-10-17 12:00:56

  */

  -- ----------------------------

  -- Table structure for [user]

  -- ----------------------------

  USE test

  GO

  DROP TABLE [user];

  CREATE TABLE [user] (

  id bigint NOT NULL PRIMARY KEY IDENTITY(1000, 1),

  create_date datetime DEFAULT NULL,

  edit_date datetime DEFAULT NULL,

  is_delete int DEFAULT NULL,

  [name] varchar(255) DEFAULT NULL,

  sex varchar(255) DEFAULT NULL,

  age int DEFAULT NULL

  );

  -- ----------------------------

  -- Records of user

  -- ----------------------------

  INSERT INTO [user] VALUES ('2013-04-02 16:01:00', '2013-04-02 16:01:17', '0', 'Oppo', '男', '20');

  INSERT INTO [user] VALUES ('2013-04-02 16:01:02', '2013-04-02 16:01:17', '0', 'Mini', '女', '18');

  INSERT INTO [user] VALUES ('2013-04-02 16:01:04', '2013-04-02 16:01:17', '0', 'Kina', '女', '18');

  INSERT INTO [user] VALUES ('2013-04-02 16:01:06', '2013-04-02 16:01:17', '0', 'Lora', '男', '19');

  INSERT INTO [user] VALUES ('2013-04-02 16:01:08', '2013-04-02 16:01:17', '0', '榕Sir', '女', '18');

  INSERT INTO [user] VALUES ('2013-04-02 16:01:10', '2013-04-02 16:01:17', '0', '兼容', '女', '19');

  INSERT INTO [user] VALUES ('2013-04-02 16:01:13', '2013-04-02 16:01:17', '0', 'Sir云', '男', '18');

  INSERT INTO [user] VALUES ('2013-04-02 16:01:17', '2013-04-02 16:01:17', '0', '明白了', '男', '18');

  INSERT INTO [user] VALUES ('2013-04-02 16:37:00', '2013-04-02 16:37:00', '0', 'Guro Go Sir', '女', '19');

  二、在页面JS代码操作数据库

  

复制代码 代码如下:

  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

  <html xmlns="http://www.w3.org/1999/xhtml">

  <head>

  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

  <title>JS操作数据库</title>

  <script language="javascript" type="text/javascript">

  var conn, rs;

  /*获取数据库连接*/

  function getConnection() {

  conn = new ActiveXObject("ADODB.Connection");

  // 1.JavaScript操作数据库JS操作Access数据库

  // 在F盘有文件abc.mdf,表名为user,一共2个字段,id数字类型主键,name文本类型

  // conn.Open("DBQ=f://abc.mdb;DRIVER={Microsoft Access Driver (*.mdb)};");

  // 2.JavaScript操作数据库JS操作SQL Server数据库

  // 数据库名为:test,表名为user,id为int类型,自增列,name为用户名,为varchar类型;数据库用户名为sa,密码是sasa。

  conn.Open("Driver={SQL Server};Server=.;DataBase=test;UID=sa;Password=sasa");       //打开数据库

  return conn;

  }

  /*执行增删改的方法*/

  function executeUpdate(sql) {

  getConnection();

  try {

  conn.execute(sql);

  return true;

  } catch (e) {

  document.write(e.description);

  } finally {

  closeAll();

  }

  return false;

  }

  /*执行查询的方法*/

  function executeQuery(sql) {

  getConnection();

  try {

  rs = new ActiveXObject("ADODB.Recordset");

  rs.open(sql, conn);

  var html = "";

  while(!rs.EOF) {

  html = html + rs.Fields("id") + "    " + rs.Fields("name")+"<br/>";

  rs.moveNext();

  }

  document.write(html);

  } catch (e) {

  document.write(e.description);

  } finally {

  closeAll();

  }

  }

  /*关闭所有资源*/

  function closeAll() {

  if(rs != null) {

  rs.close();

  rs = null;

  }

  if(conn != null) {

  conn.close();

  conn = null;

  }

  }

  // 增

  // executeUpdate("INSERT INTO [user](create_date, edit_date, is_delete, [name], sex, age) VALUES ('2013-10-17 12:00:00', '2013-10-17 12:00:00', 0, '空', '男', 20)");

  // 删

  // executeUpdate("DELETE FROM [user] WHERE id = 1009");

  // 改

  // executeUpdate("UPDATE [user] SET sex = '女', age = 18 WHERE id = 1009");

  // 查

  executeQuery("select * from [user]");

  </script>

  </head>

  <body>

  </body>

  </html>