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查询数据库返回时,将数据库字段与实体类属性进行对应(主要用于多表关联)
@Select("select * from order") @Results({ @Result(id=true,property = "id",column = "id"), // 设置主键, property = "实体类属性名", column = "数据字段名" @Result(property = "orderNum", column = "orderNum"), @Result(property = "product", column = "productId", javaType = Product.class, one = @One(select = "dao包名.IProductDao.findById")) }) public List<Orders> findAll() throws Exception;