spring hibernate实现动态替换表名(分表)

/**
 * Created by hdwang on 2017/8/7.
 *
 * hibernate拦截器：表名替换
 */
public class AutoTableNameInterceptor extends EmptyInterceptor {

    private String srcName = StringUtils.EMPTY; //源表名
    private String destName = StringUtils.EMPTY; // 目标表名

    public AutoTableNameInterceptor() {}

    public AutoTableNameInterceptor(String srcName,String destName){
        this.srcName = srcName;
        this.destName = destName;
    }


    @Override
    public String onPrepareStatement(String sql) {
        if(srcName.equals(StringUtils.EMPTY) || destName.equals(StringUtils.EMPTY)){
            return  sql;
        }
        sql = sql.replaceAll(srcName, destName);
        return sql;
    }
}

<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean" >
        <property name="dataSource" ref="defaultDataSource"></property>
        <property name="packagesToScan">
            <list>
                <value>com.my.pay.task.entity</value>
                <value>com.my.pay.paycms.entity</value>
                <value>com.my.pay.data.entity.payincome</value>
            </list>
        </property>
        <property name="mappingLocations">
             <list>
                 <value>classpath*:/hibernate/hibernate-sql.xml</value>
             </list>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
                <prop key="hibernate.show_sql">false</prop>
                <prop key="hibernate.format_sql">false</prop>
                <prop key="hibernate.hbm2ddl.auto">none</prop>
                <!-- 开启查询缓存 -->
                <prop key="hibernate.cache.use_query_cache">false</prop>
                <!-- 配置二级缓存 --> 
                <prop key="hibernate.cache.use_second_level_cache">true</prop>
                <!-- 强制Hibernate以更人性化的格式将数据存入二级缓存 -->  
                  <prop key="hibernate.cache.use_structured_entries">true</prop> 
                  <!-- Hibernate将收集有助于性能调节的统计数据 -->  
                  <prop key="hibernate.generate_statistics">false</prop>
                  <!-- 指定缓存配置文件位置 -->
                  <prop key="hibernate.cache.provider_configuration_file_resource_path">/spring/ehcache.xml</prop>
                <prop key="hibernate.cache.region.factory_class">org.hibernate.cache.ehcache.EhCacheRegionFactory</prop>
                <prop key="hibernate.current_session_context_class">jta</prop>
                <prop key="hibernate.transaction.factory_class">org.hibernate.engine.transaction.internal.jta.CMTTransactionFactory</prop>
                <prop key="hibernate.transaction.manager_lookup_class">com.atomikos.icatch.jta.hibernate3.TransactionManagerLookup</prop>
            </props>
        </property>
    </bean>

public class LocalSessionFactoryBean extends HibernateExceptionTranslator
        implements FactoryBean<SessionFactory>, ResourceLoaderAware, InitializingBean, DisposableBean {

    private DataSource dataSource;

    private Resource[] configLocations;

    private String[] mappingResources;

    private Resource[] mappingLocations;

    private Resource[] cacheableMappingLocations;

    private Resource[] mappingJarLocations;

    private Resource[] mappingDirectoryLocations;

    private Interceptor entityInterceptor;

    private NamingStrategy namingStrategy;

    private Object jtaTransactionManager;

    private Object multiTenantConnectionProvider;

    private Object currentTenantIdentifierResolver;

    private RegionFactory cacheRegionFactory;

    private Properties hibernateProperties;

    private Class<?>[] annotatedClasses;

    private String[] annotatedPackages;

    private String[] packagesToScan;

    private ResourcePatternResolver resourcePatternResolver = new PathMatchingResourcePatternResolver();

    private Configuration configuration;

    private SessionFactory sessionFactory;

    /**
     * Open a {@link Session}.
     * <p/>
     * JDBC {@link Connection connection(s} will be obtained from the
     * configured {@link org.hibernate.service.jdbc.connections.spi.ConnectionProvider} as needed
     * to perform requested work.
     *
     * @return The created session.
     *
     * @throws HibernateException Indicates a problem opening the session; pretty rare here.
     */
    public Session openSession() throws HibernateException;

    /**
     * Obtains the current session.  The definition of what exactly "current"
     * means controlled by the {@link org.hibernate.context.spi.CurrentSessionContext} impl configured
     * for use.
     * <p/>
     * Note that for backwards compatibility, if a {@link org.hibernate.context.spi.CurrentSessionContext}
     * is not configured but JTA is configured this will default to the {@link org.hibernate.context.internal.JTASessionContext}
     * impl.
     *
     * @return The current session.
     *
     * @throws HibernateException Indicates an issue locating a suitable current session.
     */
    public Session getCurrentSession() throws HibernateException;

<property name="entityInterceptor">
      <bean class="com.my.pay.common.AutoTableNameInterceptor"/>
</property>

@Resource(name = "sessionFactory")
private SessionFactory sessionFactory;


protected Session getSession(){
        if(autoTableNameInterceptorThreadLocal.get() == null){
            return this.sessionFactory.getCurrentSession();
        }else{
            SessionBuilder builder = this.sessionFactory.withOptions().interceptor(autoTableNameInterceptorThreadLocal.get());
            Session session = builder.openSession();
            return session;
        }
}

/**
* 线程域变量，高效实现线程安全(一个请求对应一个thread)
*/
private ThreadLocal<AutoTableNameInterceptor> autoTableNameInterceptorThreadLocal = new ThreadLocal<>();

public List<WfPayLog> find(Long merchantId, Long poolId,String sdk, Long appId,String province,
            Integer price,
            String serverOrder, String imsi,Integer iscallback,String state,
            Date start, Date end, Paging paging) {
       。。。。

        //定制表名拦截器,设置到线程域
        autoTableNameInterceptorThreadLocal.set(new AutoTableNameInterceptor("wf_pay_log","wf_pay_log_"+ DateUtil.formatDate(start,DateUtil.YEARMONTH_PATTERN)));
        List<WfPayLog> wfPayLogs;
        if (paging == null) {
            wfPayLogs = (List<WfPayLog>) find(hql.toString(), params); //find方法里面有 this.getSession().createQuery("hql") 等方法

　　　　} else { 
　　　　　　　wfPayLogs = (List<WfPayLog>) findPaging(hql.toString(), "select count(*) " + hql.toString(), params, paging); 
　　　　}
       return wfPayLogs; 
}