NamingStrategy

搜罗了很多资料，可是只是看到一个，但是还是没有调出来（也没有源码），后来自己试了试ok了。写出来共享一下。

 

1.实体类：

public class Strategy implements java.io.Serializable {

	// Fields

	private Integer id;
	private String name;
	private Integer age;

	// Constructors

 

2.Strategy.hbm.xml 对应的表名是可以省略的，不过在hibernate的配置文件中要加一个东西！        hibernate.hbm2ddl.auto

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- 
    Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
    <class name="com.ccms.namingstrategy.Strategy"  catalog="hejietest">
        <id name="id" type="integer">
            <column name="id" />
            <generator class="increment" />
        </id>
        <property name="name" type="string">
            <column name="name" />
        </property>
        <property name="age" type="integer">
            <column name="age" />
        </property>
    </class>
</hibernate-mapping>

 

3.hibernate.cfg.xml  一定要加入<property name="hibernate.hbm2ddl.auto" >update</property>

<property name="hibernate.hbm2ddl.auto" >update</property>
	
	<mapping resource="com/ccms/namingstrategy/Strategy.hbm.xml" />

 

4.MyNamingStrategy

 

package com.ccms.namingstrategy;

import java.util.Calendar;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.cfg.DefaultNamingStrategy;

public class MyNamingStrategy extends DefaultNamingStrategy {
	private static Log log = LogFactory.getLog(MyNamingStrategy.class);
	public static MyNamingStrategy INSTANCE  = new MyNamingStrategy();
	@Override
	public String classToTableName(String className) {
		Calendar cal = Calendar.getInstance();
		int year = cal.get(Calendar.YEAR);
		int month = cal.get(Calendar.MONTH) + 1;
		String tableName = "strategy_"+year+"_"+(month<10?("0"+month):month);
		log.info("过滤出来的表名：["+tableName+"]");
		return tableName;
	}
}

 

5.HibernateSessionFactory

修改这句
configuration.setNamingStrategy(MyNamingStrategy.INSTANCE).configure(configFile);
/**
其中configuration是
private  static Configuration configuration = new Configuration();   
*/