文章作者 100test 发表时间 2008:04:19 13:07:09
来源 100Test.Com百考试题网
derby数据库与mysql不同的是，它有两种连接方式：embbed 和 net server
这里只用了第一种embbed的形式，第二种还没有试过。
系统运行环境：winxp＋jdk1.4.2＋tomcat＋cloudscape10.0
以下是具体的网页代码：
derbyconnect.jsp
>
<%@ page language="java" import="java.sql.*" import="java.util.Properties" %>
<%
String databaseURL ="jdbc:derby:C:\\Database\\jimmyDB". //C:\\Database\\jimmyDB是数据库的存放位置
try{
Class.forName("org.apache.derby.jdbc.EmbeddedDriver"). //derby数据库的embbed驱动名
out.println("Success loading derby Driver!").
}
catch(Exception e)
{
out.print("Error loading derby Driver!").
e.printStackTrace().
}
try{
Properties properties = new Properties().
properties.put("create", "true").//新建数据库
properties.put("user", "APP").//用户名
properties.put("password", "APP"). //密码
properties.put("retreiveMessagesFromServerOnGetMessage", "true").
//Get a connection
Connection connect= DriverManager.getConnection(databaseURL, properties).
out.print("Success connect derby server!").
Statement s = connect.createStatement().
s.execute("create table jimmyDB2(num int, addr varchar(40))").
out.println("Created table jimmyDB2").
s.execute("insert into jimmyDB2 values (1956,´.Webster St.´.)").
out.println("Inserted 1956 Webster").
s.execute("insert into jimmyDB2 values (1910,´.Union St.´.)").
out.println("Inserted 1910 Union").
s.execute("0update jimmyDB2 set num=180, addr=´.Grand Ave.´. where num=1956").
out.println("Updated 1956 Webster to 180 Grand").
s.execute("0update jimmyDB2 set num=300, addr=´.Lakeshore Ave.´. where num=180").
out.println("Updated 180 Grand to 300 Lakeshore").
ResultSet rs = s.executeQuery("SELECT num, addr FROM jimmyDB2 ORDER BY num").
while(rs.next())
{
out.println(rs.getInt(1)).
out.println(rs.getString(2)).
}
}
catch(Exception e)
{
out.print(" error!").
e.printStackTrace().
}
%>