<select id="xcxGetAnnounce" resultMap="policyVo"> SELECT zhengce.id,zhengce.title, zhengce.dispatch_date,zhengce.declare_date, zhengce.fw_department <if test="sysType != null and sysType == 3 and keyWord!=null and keyWord!=''"> ,MATCH(zhengce.title) AGAINST(REPLACE(#{keyWord},' ','')) AS score </if> FROM oa_zhengce zhengce WHERE type=2 AND zhijian_status=5 AND status=1 AND ( zhengce.zc_jibie=1 OR <choose> <when test="sysType != null and sysType == 3"> zhengce.area='440604' OR ( zhengce.zc_jibie=2 and zhengce.prov='440000') OR (zhengce.zc_jibie=3 and zhengce.city='440600') </when> <when test="sysType != null and sysType == 2"> zhengce.street='440604010' OR ( zhengce.zc_jibie=2 and zhengce.prov='440000') OR (zhengce.zc_jibie=3 and zhengce.city='440600') OR (zhengce.zc_jibie=4 and zhengce.city='440604') </when> <otherwise> zhengce.city=#{city} OR ( zhengce.zc_jibie=2 and zhengce.prov=#{prov}) </otherwise> </choose> ) <choose> <when test="sysType != null and sysType == 2 and keyWord!=null and keyWord!=''"> AND REPLACE(zhengce.title,' ','') like CONCAT('%',REPLACE(#{keyWord},' ',''),'%') </when> <when test="sysType != null and sysType == 3 and keyWord!=null and keyWord!=''"> AND MATCH(zhengce.title) AGAINST(REPLACE(#{keyWord},' ','')) </when> </choose> <choose> <when test="keyWord==null or keyWord==''"> ORDER BY zhengce.dispatch_date desc,zhengce.id </when> <otherwise> ORDER BY score desc ,zhengce.dispatch_date desc, zhengce.id desc </otherwise> </choose> </select>

ibatis-api.rar_ibatis a_ibatis api_ibatis api.chm_ibatisAPI_java

你可以调用它的selectList、selectOne、insert、update和delete方法来执行CRUD操作。此外，commit和rollback用于事务控制。 3. Mapper接口：业务层代码可以实现这些接口，Ibatis会自动生成实现类，...

iBATIS-DAO-2.3.4.726.rar_com.ibatis.dao_iBATIS dao 2_iBatis DAO_

此外，iBATIS还提供了一些辅助工具，如ParameterMap用于管理SQL语句的输入参数，ResultMap用于处理查询结果的映射，以及Cache机制，用于缓存查询结果，提高系统性能。这些工具类使得开发者能够更方便地进行...

<select id="getProductByStatusWhenCalculatePage" resultMap="productResultMap"> SELECT p.id, p.user_id, p.goods_name, GROUP_CONCAT(i.url SEPARATOR ',') AS images FROM pms_product AS p LEFT JOIN pms_product_images AS i ON p.id = i.product_id WHERE p.status = #{status} GROUP BY p.id </select> <resultMap id="productResultMap" type="Product"> <id property="id" column="id"/> <result property="userId" column="user_id"/> <result property="goodsName" column="goods_name"/> <collection property="images" ofType="java.lang.String"> <result column="images" /> </collection> </resultMap> resulttype用Map实现，不要使用vo类或实体类

<select id="getProductByStatusWhenCalculatePage" resultMap="productResultMap"> SELECT p.id, p.user_id, p.goods_name, GROUP_CONCAT(i.url SEPARATOR ',') AS images FROM pms_product AS p LEFT JOIN pms_...

<mapper namespace="com.kangxg.mapper.UserMapper"> <select id="findUserWithOrders" parameterType = "Integer" resultMap="UserWithOrdersResult"> select u.*,o.id as orders_id,o.number from tb_user u,tb_orders o where u.id = o.user_id and u.id = #{id} </select> <resultMap type="com.kangxg.po.User" id="UserWithOrdersResult"> <id property = "id" column = "id"/> <result property = "username" column = "username"/> <result property = "address" column = "address"/> <collection property = "com.kangxg.po.ordersList" ofType = "Orders"> <id property ="id" column ="orders_id"/> <result property ="number" column = "number"/> </collection> </resultMap> </mapper> 对以上代码进行优化改错

<select id="findUserWithOrders" parameterType="Integer" resultMap="UserWithOrdersResult"> SELECT u.*, o.id AS orders_id, o.number FROM tb_user u, tb_orders o WHERE u.id = o.user_id AND u.id = #{...

根据下面的配置信息，写出Classes，Teacher和Student这三个POJO的全部代码。<mapper namespace="com.lcb.mapping.userMapper"> <l--association—对—关联查询--> <select id="getClass" parameterType="int" resultMap="ClassesResultMap">select * from class c,teacher t where c.teacher_id=t.t_id and c.c_id=#{id} </select> <resultMap type="com.lcb.user.Classes" id="ClassesResultMap"><l--实体类的字段名和数据表的字段名映射--> <id property="id" column="c_id"/> <result property="name" column="c_name"/><association property="teacher" javaType="com.Icb.user.Teacher"><id property="id" column="t_id" l> <result property="name" column="t_name"/></association> </resultMap> <l--collection—对多关联查询--> <select id="getClass2" parameterType="int"resultMap="ClassesResultMap2"> select * from class c,teacher t,student s where c.teacher_id=t.t_idand c.c_id=s.class_id and c.c_id=#{ id} </select> <resultMap type="com.lcb.user.Classes" id="ClassesResultMap2"><id property=""id" column="c_id"/> <result property="name" column="c_name"/><association property="teacher" javaType="com.Icb.user.Teacher"><id property="id" column="t_id"l> <result property="name" column="t_name"/></association> <collection property="student" ofType="com.Icb.user.Student"><id property="id" column="s_id"/> cresult property="name" column="s_name"/></collection> </resultMap></mapper>

public void setC_id(int c_id) { this.c_id = c_id; } public String getC_name() { return c_name; } public void setC_name(String c_name) { this.c_name = c_name; } public int getTeacher_id() ...

<select id="selectProductStatisticsData" resultMap=

<select id="selectProductStatisticsData" resultMap=...> 是一种常见的MyBatis映射文件（Mapper.xml）语法，用于定义SQL查询。在这个片段中， - id 是这个SQL查询的唯一标识符，通常对应于Service层的一个...

请阅读以下代码：<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.example.demo.mapper.UserMapper"> <resultMap id="userMap" type="com.example.demo.model.User"> <id property="id" column="id" /> <result property="name" column="name" /> <result property="email" column="email" /> </resultMap> <select id="findAll" resultMap="userMap"> SELECT * FROM user </select> <select id="findById" resultMap="userMap"> SELECT * FROM user WHERE id = #{id} </select> <insert id="save"> INSERT INTO user(name, email) VALUES (#{name}, #{email}) </insert> <update id="update"> UPDATE user SET name=#{name}, email=#{email} WHERE id=#{id} </update> <delete id="delete"> DELETE FROM user WHERE id=#{id} </delete> <configuration> org.hibernate.dialect.MySQLDialect </configuration> </mapper> 如果我使用的不是hibernate框架，应当怎么修改？

<select id="findAll" resultMap="userMap"> SELECT * FROM user </select> <select id="findById" resultMap="userMap"> SELECT * FROM user WHERE id = #{id} </select> <insert id="save"> INSERT INTO ...

翻译以下代码 <select id="getExistCount" resultMap="baseRm"> select * from (select * from (select vsci.validate_sim_card_id,vsci.device_code,vsci.manufacturer_id, vsci.protocol_name,vsci.device_type,vsci.device_type_name,vsci.appkey from iledproduction.validate_sim_card_info vsci where vsci.manufacturer_id in <foreach collection="manufacturerIdList" item="item" index="index" open="(" close=")" separator=","> #{item} </foreach> <if test="propMap.size>0 and propMap!=null"> <foreach collection="propMap" index="index" item="item"> <if test='index.toString=="device_type"'> and vsci.device_code = "${item[1]}" </if> </foreach> </if>)a left join (select psi.station_name,psi.appkey as appkey_b,psi.department_key from iledproduction.production_station_info psi ) b on a.appkey=b.appkey_b )c left join (select dp.department_name,dp.department_key as department_key_d from iledproduction.department dp )d on c.department_key=d.department_key_d <if test="propMap.size>0 and propMap!=null"> <foreach collection="propMap" index="index" item="item"> <if test='index.toString=="manufacturer_id"'> where vsci.manufacturer_id = ${item[1]} </if> </foreach> </if> limit #{firstResult},#{maxResults} </select>

sql SELECT * FROM ( SELECT * ... <if test='index.toString == "manufacturer_id"'> WHERE vsci.manufacturer_id = ${item[1]} </if> </foreach> </if> LIMIT #{firstResult}, #{maxResults}

<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.phonemarket.mapper.BannerMapper"> <resultMap type="Banner" id="BaseResultMap"> <id property="bannerId" column="banner_id" /> <result property="bannerName" column="banner_name" /> <result property="bannerUrl" column="banner_url" /> <result property="bannerImg" column="banner_img" /> <result property="bannerState" column="banner_state" /> </resultMap> <insert id="addBanner" parameterType="Banner"> insert into banner(banner_name,banner_url,banner_img) values(#{bannerName},#{bannerUrl},#{bannerImg}) </insert> <update id="deleteBanner" parameterType="java.lang.Integer"> update banner set banner_state=-1 where banner_id=#{id} </update> <update id="changeBannerState" parameterType="java.lang.Integer"> update banner set banner_state=#{0} where banner_id=#{1} </update> <update id="updateBanner" parameterType="Banner"> update banner <set> <if test="bannerName!=null"> banner_name=#{bannerName}, </if> <if test="bannerUrl!=null"> banner_url=#{bannerUrl}, </if> <if test="bannerImg!=null"> banner_img=#{bannerImg} </if> </set> where banner_id=#{bannerId} </update> <select id="findBannerById" parameterType="java.lang.Integer" resultMap="BaseResultMap"> select * from banner where banner_id=#{id} </select> <select id="findAllBanner" resultMap="BaseResultMap"> select * from banner where banner_state > 0 </select> <select id="findAllBannerByLikeName" parameterType="java.lang.String" resultMap="BaseResultMap"> select * from banner where banner_state > 0 and banner_name like '%${value}%' </select> <select id="findAllShowBanner" resultMap="BaseResultMap"> select * from banner where banner_state=1 </select> </mapper>

括号中的参数类型表示 SQL 语句中的参数类型，resultMap 定义了查询结果与 Banner 对象之间的映射关系。其中BaseResultMap是一个标识符，表示基本的结果映射，对应了Banner类中的属性名称。在 SQL 语句中，#{param} ...

修正下列xml代码<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.nxu.dao.blogMapper"> . <select id="findAuthorByBlogId" resultMap="authorResultMap"> select a.author_id,a.author_username,a.author_password,a.author_email,b.blog_id,b.blog_title,b.blog_author_id from author a, blog b where b.blog_id = #{blogId} and a.author_id = b.blog_author_id </select> <resultMap id="authorResultMap" type="Blog"> <id property="blogId" column="blog_id"/> <result property="blogTitle" column="blog_title"/> <association property="author" javaType="Author"> <id property="authorId" column="author_id"/> <result property="authorUsername" column="author_username"/> <result property="authorPassword" column="author_password"/> <result property="authorEmail" column="author_email"/> </association> </resultMap> </mapper>

3. resultMap属性值必须与resultMap标签的id属性值一致； 4. Blog类需要有对应的属性和getter/setter方法，否则会报错； 5. authorResultMap中的association标签用于关联查询，需要在Blog类中定义一个Author类型的...

为什么以下代码会导致上述错误 <select id="selectList" resultMap="BaseResultMap" parameterType="com.wego.entity.query.CartItemQuery"> select <include refid="Base_Column_List"/> from tb_cart_item <where> <if test="id != null"> and id = #{id} </if> <if test="goodsId != null"> and goodsId= #{goodsId} </if> <if test="amount != null"> and amount= #{amount} </if> <if test="money != null"> and money= #{money} </if> </where> order by update_time desc </select>

<if test="id != null"> and id = #{id} </if> xml <if test="goodsId != null"> and goodsId = #{goodsId} </if> xml <if test="amount != null"> and amount = #{amount} </if> xml ...

<select id="loadArticleList" resultMap="resultMap"> SELECT aa.* FROM ap_article aa LEFT JOIN ap_article_config aac ON aa.id = aac.article_id <where> and aac.is_delete != 1 and aac.is_down != 1 <if test="type != null and type == 1"> and aa.publish_time <![CDATA[<]]> #{dto.minBehotTime} </if> <if test="type != null and type == 2"> and aa.publish_time <![CDATA[>]]> #{dto.maxBehotTime} </if> <if test="dto.tag != 'all'"> and aa.channel_id = #{dto.tag} </if> </where> order by aa.publish_time desc limit #{dto.size} </select>

4. <if>语句块中的条件根据dto.tag的值来筛选特定标签的文章，如果dto.tag不等于'__all__'，则只选择对应标签的文章。查询结果按照发布时间(aa.publish_time)倒序排序，并限制返回结果数量为dto.size。 ...

这段代码什么意思 <select id="list" resultMap="BaseResultMap"> select

这段代码是一条 SQL select 查询语句，其中 id="list" 表示这个 select 语句被命名为 list，resultMap="BaseResultMap" 表示查询结果将会被映射到一个名为 BaseResultMap 的结果集中。具体查询的内容需要看该 select...

<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.example.teacher_admin_system.mappers.EvaluationMapper"> <resultMap id="EvaluationResult" type="com.example.teacher_admin_system.pojo.Evaluation"> <result column="name" property="name"></result> <result column="avg(score)" property="avg"></result> </resultMap> <select id="findAll" resultMap="EvaluationResult"> select name,avg(score) from evaluation join teacher on evaluation.teacher_id=teacher.id group BY teacher_id </select> <select id="findById" resultMap="EvaluationResult"> select teacher.name,avg(score) from evaluation join teacher on evaluation.teacher_id=teacher.id group BY teacher_id HAVING teacher_id = #{id};</select> <select id="findByName" resultMap="EvaluationResult"> select teacher.name,avg(score) from evaluation join teacher on evaluation.teacher_id=teacher.id join department on department.id=teacher.department_id where department.name='???????' group BY teacher_id; </select> </mapper>

这是一个 MyBatis 的 Mapper 文件，它定义了一个名为 "com.example.teacher_admin_system.mappers.EvaluationMapper" 的命名空间，其中包含三个 SQL 查询语句。第一个查询语句是 "findAll"，它使用了一个 ...

<select id="selectPPersonListById" parameterType="string" resultMap="PPersonListResult">

其中，id 属性指定了这个 select 语句的唯一标识符，parameterType 属性指定了这个 select 语句的输入参数类型，resultMap 属性指定了这个 select 语句返回结果集的映射关系。具体的实现细节需要结合上下文来确定。

<select id="queryBlogIF" parameterType="map" resultType="Blog" resultMap="blog"> select * from mybatis.blog where 1=1 <if test="title!=null"> and title=#{title} </if> <if test="author!=null"> and author =#{author} </if> </select> 这段代码什么意思

- <select> 标签定义了一个查询语句，id 属性指定了查询语句的唯一标识。 - parameterType 属性指定了传入查询语句的参数类型，这里是一个 Map 类型。 - resultType 属性指定了查询结果的返回类型，这里...

<select id="queryByProjectNo" parameterType="com.hzw.platform.domain.HzwProject" resultMap="ProjectDataResult">

这段代码是一个查询语句的定义，使用了MyBatis框架。其中，queryByProjectNo是这个查询语句的标识符，com.hzw.platform.domain.HzwProject是查询语句...具体的查询逻辑和返回结果可以在ProjectDataResult中定义。

前端传来的搜索条件 1. pageNum: 1 2. pageSize: 20 3. schoolId: 12 4. clockTime_begin: 2023-08-02 5. clockTime_end: 2023-08-03 <select id="selectAttStudentRecordList" parameterType="AttStudentRecord" resultMap="AttStudentRecordResult"> <include refid="selectAttStudentRecordVo"/> <where> <if test="schoolId != null "> and school_id = #{schoolId}</if> <if test="parentId != null "> and parent_id = #{parentId}</if> <if test="studentId != null "> and student_id = #{studentId}</if> <if test="stuName != null and stuName != ''"> and stu_name like concat('%', #{stuName}, '%')</if> <if test="stuNo != null and stuNo != ''"> and stu_no = #{stuNo}</if> <if test="cardNo != null and cardNo != ''"> and card_no = #{cardNo}</if> <if test="clockType != null "> and clock_type = #{clockType}</if> <if test="imgUrl != null and imgUrl != ''"> and img_url = #{imgUrl}</if> <if test="clock_time != null" > and clock_time =#{clockTime}</if> <if test="channelName != null and channelName != ''"> and channel_name like concat('%', #{channelName}, '%')</if> <if test="deviceId != null "> and device_id = #{deviceId}</if> <if test="tenantId != null "> and tenant_id = #{tenantId}</if> and del_flag = 0 </where> </select> 我在xml文件中的where要怎么写

<select id="selectAttStudentRecordList" parameterType="AttStudentRecord" resultMap="AttStudentRecordResult"> <include refid="selectAttStudentRecordVo" /> <where> <if test="schoolId != null ">and ...

MyBatis_3_User_Guide.zip_mybatis_mybatis api

6. **结果映射**：MyBatis通过ResultMap来实现复杂结果集的映射，包括自动类型转换、关联对象的映射、多结果集处理等。 7. **缓存**：MyBatis提供了本地缓存和二级缓存机制，可以提高查询效率。开发者可以自定义...

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ibatis-api.rar_ibatis a_ibatis api_ibatis api.chm_ibatisAPI_java

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<select id="selectProductStatisticsData" resultMap=

这段代码什么意思 <select id="list" resultMap="BaseResultMap"> select

<select id="selectPPersonListById" parameterType="string" resultMap="PPersonListResult">

<select id="queryBlogIF" parameterType="map" resultType="Blog" resultMap="blog"> select * from mybatis.blog where 1=1 <if test="title!=null"> and title=#{title} </if> <if test="author!=null"> and author =#{author} </if> </select> 这段代码什么意思

<select id="queryByProjectNo" parameterType="com.hzw.platform.domain.HzwProject" resultMap="ProjectDataResult">

MyBatis_3_User_Guide.zip_mybatis_mybatis api

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