Java中连接数据的Hibernate配置
Java中连接数据的Hibernate
配置
hibernate.cfg.xml
<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- properties -->
<!--
<property name="dialect">org.hibernate.dialect.SQLServerDialect</property>
<property name="connection.driver_class">com.microsoft.jdbc.sqlserver.SQLServerDriver</property>
<property name="connection.url">jdbc:microsoft:sqlserver://192.168.0.118;databasename=saadmin</property>
<property name="connection.username">sa</property>
<property name="connection.password">saadmin</property>
-->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://192.168.0.117:3306/mysqldb?useUnicode=true&characterEncoding=gb2312</property>
<property name="connection.username">root</property>
<property name="connection.password">adminroot</property>
<property name="hibernate.c3p0.acquire_increment">1</property>
<property name="hibernate.c3p0.idle_test_period">0</property>
&nb
相关文档:
http://blog.csdn.net/ycyangcai/archive/2009/06/21/4285997.aspx
1.声明一个map: Map map = new HashMap();
2.向map中放值,注意:map是key-value的形式存放的.如:
map.put("sa","dd");
3.从map中取值:String str = map.get("sa").toString();结果是:str = "dd";
4.遍历一个map,从 ......
我们经常会用System.currentTimeMillis()在事件开始前和结束后设置一个开始时间和结束时间,用他们的差作为程序执行的时间。
我们不妨定义一个接口用java回调来实现动态计算。
接口定义:
package com.hd123.h5.ejb.verctrl;
public interface CallBack {
public void callBack();
}
然后是实现这个接口
pac ......