模糊查询：
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@Select({
"SELECT * FROM account where account like CONCAT('%',#{query},'%') or email like CONCAT('%',#{query},'%')"
})
Account findAccountByAccountOrMail(@Param("query") String query);
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批量添加：
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@Insert({
"<script>" +
"INSERT INTO company_label(company_id,label_id) values " +
" <foreach collection=\\"item\\" item=\\"item\\" index=\\"index\\" separator=\\",\\" > " +
" (#{companyId},#{item}) " +
" </foreach>" +
"</script>"
})
void insertLabelForCompany(@Param("companyId") Long companyId,@Param("item") List<Long> item);
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批量删除：
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@Delete({
"<script>delete from company_label where company_id = #{companyId} and label_id in " +
"<foreach collection = \\"item\\" item = \\"item\\" open=\\"(\\" separator=\\",\\" close=\\")\\">" +
"#{item}" +
"</foreach>" +
"</script>"
})
void removeLabelForCompany(@Param("companyId") Long companyId,@Param("item") List<Long> item);
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批量修改：
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@Update(value = "<script>" + "update banner b set b.display = #{status} where b.id in "+
"<foreach item = 'item' index = 'index' collection = 'ids' open = '(' separator = ',' close = ')'>#{item}</foreach>" +
"" +
"</script>")
int updateStatus(@Param("status") Long status, @Param("ids") Long[] ids);
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批量查询：
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@Select({
"<script>" +
"select * from product where id in" +
"<foreach item = 'item' index = 'index' collection = 'idList' open = '(' separator = ',' close = ')'>#{item}</foreach>" +
"</script>"
})
List<Product> findByIdList(@Param("idList")List<Long> idList);
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条件查询，if里面不仅可以判空，还可以判断是否满足某个条件
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@Select({
"<script>SELECT * FROM company where 1=1 and parent_id = #{companyId} " +
//平级
"<if test = \\"isScanSameLevelValue == 1\\">and type = #{type}</if>" +
"<if test = \\"isScanSameLevelValue == 0\\">and type != #{type}</if>" +
"</script> "
})
List<Company> findCompanyConditional(@Param("isScanSameLevelValue") String isScanSameLevelValue, @Param("isScanParentLevelValue") String isScanParentLevelValue, @Param("companyId") Long companyId, @Param("type") Integer type);
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条件查询：
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*/
@Lang(XMLLanguageDriver.class)
@Select({"<script>select DISTINCT p.* FROM `us_product`.`hot_category_surgery` hcs "+
"LEFT JOIN `us_product`.`product` p ON hcs.`product_id` =p.`id`"+
"LEFT JOIN `us_product`.`category_surgery` cs on cs.`product_id` =p.`id`"+
"LEFT JOIN `us_product`.`merchant_product` mp on mp.`product_id` = p.`id`"+
"LEFT JOIN `us_product`.`org_product` op on op.`product_id` =p.`id`"+
"where p.`type` =1 and p.`is_for_sale` =1 "+
" <if test=\\"hId != null\\"> and hcs.hot_category_id = #{hId} and p.id = hcs.product_id</if>" + //热门类目id
" <if test=\\"categoryId != null\\"> and cs.category_id = #{categoryId} and p.id = cs.product_id</if>" + //类目id
" <if test=\\"input != null\\"> and (p.name like CONCAT('%',#{input},'%') or p.company like CONCAT('%',#{input},'%')) </if> "+ //用户输入,包括商品名和店铺名,模糊
" <if test = \\" location != null\\"> and p.location like CONCAT('%',#{location},'%') </if> "+ //位置..
" <if test=\\"method != null\\"> and mp.filter_id = #{method} and p.id = mp.product_id</if> "+ //筛选条件 手术方式
" <if test=\\"org != null\\"> and op.filter_id = #{org} and p.id = op.product_id</if> "+ //筛选条件 所属机构
" ORDER BY sale_volume DESC"+
" </script>"
})
List<Product> findProductFromLocal(@Param("hId")Long hId,@Param("categoryId")Long categoryId,@Param("input")String input,@Param("method")Long method,@Param("org")Long org,@Param("location")String location);
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以上所述是小编给大家介绍的Mybatis 条件查询 批量增删改查功能，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对快网idc网站的支持！
原文链接：http://blog.csdn.net/c568254965/article/details/73527347
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