1.在实体上使用@Table 注解 默认不加使用驼峰转下划线匹配

@Table(name="table_name")public class Entity{}

2.实现 IDynamicTableName 接口

public class Entity implements IDynamicTableName{@Overridepublic String getDynamicTableName() { return “tableName”;}}可以直接添加一个非数据库字段 使用 @Transient 注解 外部直接设置表名 @Transient private String tableName;@Overridepublic String getDynamicTableName() { return tableName;}IDynamicTableName 源码定义：/*The MIT License (MIT)Copyright (c) 2014-2017 abel533@gmail.comPermission is hereby granted, free of charge, to any person obtaining a copyof this software and associated documentation files (the "Software"), to dealin the Software without restriction, including without limitation the rightsto use, copy, modify, merge, publish, distribute, sublicense, and/or sellcopies of the Software, and to permit persons to whom the Software isfurnished to do so, subject to the following conditions:The above copyright notice and this permission notice shall be included inall copies or substantial portions of the Software.THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS ORIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THEAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHERLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS INTHE SOFTWARE.
*/

package tk.mybatis.mapper.entity;

/**

实现动态表名时，实体类需要实现该接口@author liuzh

@since 2015-10-28 22:20
*/
public interface IDynamicTableName {

/**

获取动态表名 - 只要有返回值，不是null和''，就会用返回值作为表名@return
*/
String getDynamicTableName();
}