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jsp 连接mysql数据库,新建数据表,更新表数据

2010-08-11 10:45 435 查看
1,jsp建立数据表

<html>

<head>

</head>

<body>

<%@ page contentType="text/html; charset=gb2312" %>

<%@ page language="java" %>

<%@ page import="com.mysql.jdbc.Driver" %>

<%@ page import="java.sql.*" %>

<%

//驱动程序名

String driverName="com.mysql.jdbc.Driver";

//数据库用户名

String userName="root";

//密码

String userPasswd="root";

//数据库名

String dbName="test";

//表名

String tableName="user";

//联结字符串

String url="jdbc:mysql://localhost/"+dbName+"?user="+userName+"&password="+userPasswd;

Class.forName("com.mysql.jdbc.Driver").newInstance();

Connection connection=DriverManager.getConnection(url);

Statement statement = connection.createStatement();

String sql="create table haisen(id int)";

int rs = statement.executeUpdate(sql);

statement.close();

connection.close();

int tryint[]=new int[2];

tryint[0]=1;

tryint[1]=2;

%>

</body>

<script>

var aaatry="<%=rs%>";

alert(aaatry);

</script>

</html>

2,jsp向数据库中插入数据

<html>

<head>

</head>

<body>

<%@ page contentType="text/html; charset=gb2312" %>

<%@ page language="java" %>

<%@ page import="com.mysql.jdbc.Driver" %>

<%@ page import="java.sql.*" %>

<%

//驱动程序名

String driverName="com.mysql.jdbc.Driver";

//数据库用户名

String userName="root";

//密码

String userPasswd="root";

//数据库名

String dbName="test";

//表名

String tableName="user";

//联结字符串

String url="jdbc:mysql://localhost/"+dbName+"?user="+userName+"&password="+userPasswd;

Class.forName("com.mysql.jdbc.Driver").newInstance();

Connection connection=DriverManager.getConnection(url);

Statement statement = connection.createStatement();

String sql="insert table user values('2','haisen')";

int rs = statement.executeUpdate(sql);

statement.close();

connection.close();

int tryint[]=new int[2];

tryint[0]=1;

tryint[1]=2;

%>

</body>

<script>

var aaatry="<%=rs%>";

alert(aaatry);

</script>

</html>
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