• 為了方便取得SessionFactory實例，可撰寫一個test.com.util .HibernateUtil類別：
  

  package test.com.util;

開始Hibernate：

• 對於該Table建立一個對應的test.com.hbm.User.hbm.xml：
  

    Hibernate 是「物件/關係對應」ORM（Object/Relational Mapping）的解決方案，簡單說就是物件對應關係，將JAVA中物件映射至關聯式資料庫中的表格， Hibernate 提供了這個過程中自動對應轉換的方案。

• 下載proxool，下載網址：http://proxool.sourceforge.net/
• 解壓縮後將其中 proxool-0.9.1.jar、proxool-cglib.jar 放入專案中WEB-INF/libs（依各專案設定）
• 於 hibernate.cfg.xml 同一層目錄下新增一XML檔 proxool.cfg.xml，檔案內容如下：

<?xml version="1.0" encoding="utf-8"?>
<!-- the proxool configuration can be embedded within your own application's.

Apache掛 SSL

一、預備檔案：

24小時制日期顯示:
public class Datetime {

Timer與TimerTask應用。利用  timer.schedule(new RemindTask() , now, minutes * 2 * 1000)，來實現從程式啟動後每隔幾秒鐘執行一次應用程式，並限定執行幾次後程式自動停止，範例如下：

package testjava;

var hex_chr = "0123456789abcdef";
function rhex(num)

public void execute(JobExecutionContext context)

參考程式碼如下：

import java.io.*;

HowTo configure the C3P0 connection pool

• Configuration
• Parameters

Configuration

Here is a sample of C3P0 configuration. This is an extract of hibernate.cfg.xml:

<!-- configuration pool via c3p0--> 
<property name="c3p0.acquire_increment">1</property> 
<property name="c3p0.idle_test_period">100</property> <!-- seconds --> 
<property name="c3p0.max_size">100</property> 
<property name="c3p0.max_statements">0</property> 
<property name="c3p0.min_size">10</property> 
<property name="c3p0.timeout">100</property> <!-- seconds --> 
<!-- DEPRECATED very expensive property name="c3p0.validate>--> 

You also can set extra c3p0 properties using c3p0.properties. Put this file in the classpath (WEB-INF/classes for example), but be careful, the previous values will be overridden by Hibernate whether set or not (see below for more details). For more information on C3P0 configuration, please have a look at http://sourceforge.net/projects/c3p0 and unzip the download, there is a doc folder where you'll find everything you need.