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  • TKmybatis的框架介绍和原理分析及Mybatis新特性

    tkmybatis是在mybatis框架的基础上提供了很多工具，让开发更加高效，下面来看看这个框架的基本使用，后面会对相关源码进行分析，感兴趣的同学可以看一下，挺不错的一个工具

    实现对员工表的增删改查的代码
    java的dao层接口

    1. public interface WorkerMapper extends Mapper<Worker> {
    2. }

    xml映射文件

    1. <?xml version="1.0" encoding="UTF-8"?>
    2. <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
    3. <mapper namespace="com.jjs.kaiwen.dao.WorkerMapper">
    4.   <resultMap id="BaseResultMap" type="com.jjs.kaiwen.model.Worker">
    5.     <!--
    6.       WARNING - @mbggenerated
    7.     -->
    8.     <id column="id" jdbcType="INTEGER" property="id" />
    9.     <result column="worker_id" jdbcType="VARCHAR" property="workerId" />
    10.     <result column="name" jdbcType="VARCHAR" property="name" />
    11.     <result column="org_id" jdbcType="INTEGER" property="orgId" />
    12.     <result column="status" jdbcType="VARCHAR" property="status" />
    13.     <result column="role_id" property="roleId" jdbcType="INTEGER" />
    14.   </resultMap>
    15. </mapper>

    实体对象

    1. @Table(name = "worker")
    2. public class Worker {
    3.     @Id
    4.     @GeneratedValue(strategy = GenerationType.IDENTITY)
    5.     private Integer id;
    6.  
    7.     @Column(name = "worker_id")
    8.     private String workerId;
    9.  
    10.     private String name;
    11.  
    12.     @Column(name = "org_id")
    13.     private Integer orgId;
    14.  
    15.     private String status;
    16.  
    17.     @Column(name = "role_id")
    18.     private Integer roleId;
    19.  
    20.     // getters and setters ...
    21.     }

    以上就是实现对Worker进行增删改查的所有代码，包括选择性更新、插入、删除等，所有的方法列表如下

    这里写图片描述

    以后对表字段的添加或修改只需要更改实体对象的注解，不需要修改xml映射文件，如将worker_id改成worker_no

    1. @Column(name = "worker_no")
    2. private String workerNo;

    数据源的配置，只需要将org.mybatis.spring.mapper.MapperScannerConfigurer改成tk.mybatis.spring.mapper.MapperScannerConfigurer，然后加一个属性
    ，也可不加，因为框架提供了默认实现

    1.     <bean class="tk.mybatis.spring.mapper.MapperScannerConfigurer">
    2.         <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
    3.         <property name="basePackage" value="com.jjs.zanbi.dao" />
    4.         <property name="properties">
    5.             <value>
    6.                 mappers=tk.mybatis.mapper.common.Mapper
    7.             </value>
    8.         </property>
    9.     </bean>

    用这个库之后写代码感觉在飞…….如果只是简单的了解此框架到这里就可以了，下面是对框架实现原理的分析

    原理的简单分析

    此框架为我们实现这些功能所有的改动都在Mapper层面，所有的Mapper都继承了tk.mybatis.mapper.common.Mapper

    public interface WorkerMapper extends Mapper<Worker> {}

    Mapper接口的声明如下，可以看到Mapper接口实现了所有常用的方法

    1. public interface Mapper<T> extends
    2.         BaseMapper<T>,
    3.         ExampleMapper<T>,
    4.         RowBoundsMapper<T>,
    5.         Marker {
    6.  
    7. }

    看一下完整的UML图，太大了，可以用新窗口打开，放大之后再看
    这里写图片描述

    这里选择一个接口：SelectOneMapper接口，对于源码进行简单分析，此接口声明如下：

    1. public interface SelectOneMapper<T> {
    2.  
    3.     /**
    4.      * 根据实体中的属性进行查询，只能有一个返回值，有多个结果是抛出异常，查询条件使用等号
    5.      *
    6.      * @param record
    7.      * @return
    8.      */
    9.     @SelectProvider(type = BaseSelectProvider.class, method = "dynamicSQL")
    10.     T selectOne(T record);
    11.  
    12. }

    @SelectProvider是mybatis3之后提供的，用于灵活的设置sql来源，这里设置了服务提供类和方法，但这个库并没有直接用method指定的方法来返回sql，而是在运行时进行解析的，代码如下

    1. public class BaseSelectProvider extends MapperTemplate {
    2.  
    3.     public String selectOne(MappedStatement ms) {
    4.         Class<?> entityClass = getEntityClass(ms);
    5.         //修改返回值类型为实体类型
    6.         setResultType(ms, entityClass);
    7.         StringBuilder sql = new StringBuilder();
    8.         sql.append(SqlHelper.selectAllColumns(entityClass));
    9.         sql.append(SqlHelper.fromTable(entityClass, tableName(entityClass)));
    10.         sql.append(SqlHelper.whereAllIfColumns(entityClass, isNotEmpty()));
    11.         return sql.toString();
    12.     }
    13. }

    到这里我们就大概知道了这个库为我们提供便利的原理了，总的来说就是这个库帮我们提供了对表的基本操作的sql，帮我们省了很多工作量，而且维护起来也很方便，否则我们的xml文件动不动就几百行甚至上千行

    对源码的探索不能到这里停止，最起码要分析到与另一个框架的整合点

    我们知道，mybatis的mapper接口是在启动的时候被框架以JdkProxy的形式封装了的，具体对应的类是MapperFactoryBean，这个类中有一个checkDaoConfig()方法，是从父类继承并重写了该方法，继承结构如下

    MapperFactoryBean -> SqlSessionDaoSupport -> DaoSupport

    这里的DaoSupport就是spring提供的Dao的抽象，代码如下

    1. public abstract class DaoSupport implements InitializingBean {
    2.  
    3. // spring 完成属性设置后会调用此方法
    4.     @Override
    5.     public final void afterPropertiesSet() throws IllegalArgumentException, BeanInitializationException {
    6.         // 这里提供了接口供子类去实现
    7.         checkDaoConfig();
    8.  
    9.         // Let concrete implementations initialize themselves.
    10.         try {
    11.             initDao();
    12.         }
    13.         catch (Exception ex) {
    14.             throw new BeanInitializationException("Initialization of DAO failed", ex);
    15.         }
    16.     }
    17.  
    18.     protected abstract void checkDaoConfig() throws IllegalArgumentException;
    19.  
    20.     protected void initDao() throws Exception {
    21.     }
    22.  
    23. }

    框架自定义的MapperFactoryBean重写了checkDaoConfig()方法，完成对所有sql语句的设置，代码如下

    1.     @Override
    2.     protected void checkDaoConfig() {
    3.         super.checkDaoConfig();
    4.         //通用Mapper
    5.         if (mapperHelper.isExtendCommonMapper(getObjectType())) {
    6.         //这里去处理该类所对应的MappedStatement，封装在helper类中处理
    7.             mapperHelper.processConfiguration(getSqlSession().getConfiguration(), getObjectType());
    8.         }
    9.     }

    MapperHelper的processConfiguration方法如下

    1.     public void processConfiguration(Configuration configuration, Class<?> mapperInterface) {
    2.         String prefix;
    3.         if (mapperInterface != null) {
    4.             prefix = mapperInterface.getCanonicalName();
    5.         } else {
    6.             prefix = "";
    7.         }
    8.         for (Object object : new ArrayList<Object>(configuration.getMappedStatements())) {
    9.             if (object instanceof MappedStatement) {
    10.                 MappedStatement ms = (MappedStatement) object;
    11.                 //检查这个MappedStatement是否属于此映射对象
    12.                 if (ms.getId().startsWith(prefix) && isMapperMethod(ms.getId())) {
    13.                     if (ms.getSqlSource() instanceof ProviderSqlSource) {
    14.                        //去设置该statement的sql语句
    15.                         setSqlSource(ms);
    16.                     }
    17.                 }
    18.             }
    19.         }
    20.     }

    设置sql的逻辑，提供了几种不同类型的sqlsource

    1.     public void setSqlSource(MappedStatement ms) throws Exception {
    2.         if (this.mapperClass == getMapperClass(ms.getId())) {
    3.             throw new RuntimeException("请不要配置或扫描通用Mapper接口类：" + this.mapperClass);
    4.         }
    5.         Method method = methodMap.get(getMethodName(ms));
    6.         try {
    7.             //第一种，直接操作ms，不需要返回值
    8.             if (method.getReturnType() == Void.TYPE) {
    9.                 method.invoke(this, ms);
    10.             }
    11.             //第二种，返回SqlNode
    12.             else if (SqlNode.class.isAssignableFrom(method.getReturnType())) {
    13.                 SqlNode sqlNode = (SqlNode) method.invoke(this, ms);
    14.                 DynamicSqlSource dynamicSqlSource = new DynamicSqlSource(ms.getConfiguration(), sqlNode);
    15.                 setSqlSource(ms, dynamicSqlSource);
    16.             }
    17.             //第三种，返回xml形式的sql字符串
    18.             else if (String.class.equals(method.getReturnType())) {
    19.                 String xmlSql = (String) method.invoke(this, ms);
    20.                 SqlSource sqlSource = createSqlSource(ms, xmlSql);
    21.                 //替换原有的SqlSource
    22.                 setSqlSource(ms, sqlSource);

    到这里整个sql的获取流程就分析完了，本人用这个库写过一个小项目，确实节省了开发的工作量，而且DAO层的结构更加清晰简洁了

    关于mybatis新特性

    从3.4.0开始，mybatis提供对外部表的alias引用方法，多表联合查询就方便多了，我们先看原始的方式是怎样做的

    1. select a.id,a.name,b.bid,b.bname .....
    2. from user a 
    3. left join room b 
    原始的方式是将所有的表字段列出来，再来看用新特性怎样做
    1. select id="selectUsers" resultType="map">
    2.   select
    3.     <include refid="user_col_sql_id"><property name="alias" value="t1"/>,
    4.     <include refid="room_col_sql_id"><property name="alias" value="t2"/>
    5.   from user t1
    6.     left join room t2
    7. </select>
    这里主要就是对基本的sql进行了复用，如果对表进行了修改只要在原始的sql节点修改就可以了，就算是5个表的联合查询，sql也是清晰易懂，维护起来会更轻松
    新版本的mybatis对于对象映射也提供了更友好的方式，直接使用外部的ResultMap再加上查询语句中的别名就映射完成了
    1.     <resultMap id="workerResultMap" type="com.jjs.kaiwen.model.Worker" extends="BaseResultMap">
    2.         <association property="room" columnPrefix="b_"  resultMap="com.jjs.kaiwen.dao.OrgMapper.BaseResultMap"/>
    3.     </resultMap>
    更进一步
    敏锐的程序员可能会提出问题，如当多表查询的时候可能会存在字段名称相同的情况，这里的解决方案是给include添加另一个属性
    1. <include refid="user_col_sql_id_with_alias">
    2. <property name="alias" value="t"/>
    3. <property name="prefix" value="t_"/>
    4. </include>
    包含prefix的sqlNode如下
    1.     <sql id="base_column_with_alias">
    2.         ${alias}.ID as ${prefix}ID,
    3.         ${alias}.WORKER_ID as ${prefix}WORKER_ID,
    4.         ${alias}.NAME as ${prefix}NAME,
    5.         ${alias}.ZB_ROLE_ID as ${prefix}ZB_ROLE_ID,
    6.         ${alias}.ORG_ID as ${prefix}ORG_ID,
    7.         ${alias}.STATUS as ${prefix}STATUS
    8.     </sql>
    如果说觉得手动写包含alias和prefix的字段麻烦，可以用，mybatis代码生成器的插件的方式实现，我自己写了一个生成器的插件，可以代码再这里，仅供参考
    通用Service类
    1. /**
    2.  * Created by Kaiwen
    3.  */
    4. @Service
    5. public abstract class CommonServiceImpl<T,PK extends Serializable> implements CommonService<T,PK> {
    6.     /**
    7.      * 泛型注入
    8.      */
    9.     @Autowired
    10.     private Mapper<T> mapper;
    11.  
    12.     public T selectByPrimaryKey(PK entityId) {
    13.  
    14.         return mapper.selectByPrimaryKey(entityId);
    15.     }
    16.  
    17.     public int deleteByPrimaryKey(PK entityId) {
    18.         return mapper.deleteByPrimaryKey(entityId);
    19.     }
    20.  
    21.     public int insert(T record) {
    22.         return mapper.insert(record);
    23.     }
    24.  
    25.     public int insertSelective(T record) {
    26.         return mapper.insertSelective(record);
    27.     }
    28.  
    29.     public int updateByPrimaryKeySelective(T record) {
    30.         return mapper.updateByPrimaryKeySelective(record);
    31.     }
    32.  
    33.     public int updateByPrimaryKey(T record) {
    34.         return mapper.updateByPrimaryKey(record);
    35.     }
    36.  
    37.     public List<T> selectByExample(Example example) {
    38.         return mapper.selectByExample(example);
    39.     }
    40. }
    注入方式区别
    1.     <bean class="tk.mybatis.spring.mapper.MapperScannerConfigurer">
    2.         <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
    3.         <property name="basePackage" value="com.jjshome.esf.core.dao.school" />
    4.         <property name="properties">
    5.             <value>
    6.                 mappers=tk.mybatis.mapper.common.Mapper
    7.             </value>
    8.         </property>
    9.     </bean>
    10.  
    11.  
    12.     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    13.         <property name="basePackage" value="com.jjshome.esf.core.dao.community,com.jjshome.esf.core.dao.hsl"/>
    14.     </bean>
    <
    实体类
    1. package com.jjshome.esf.common.entity.school;
    2.  
    3. import java.util.Date;
    4. import javax.persistence.*;
    5.  
    6. @Table(name = "XQ_SCHOOL_AREA")
    7. public class SchoolArea {
    8.     /**
    9.      * 主键ID
    10.      */
    11.     @Id
    12.     @Column(name = "ID")
    13.     private Integer id;
    14.  
    15.     /**
    16.      * 城市编码
    17.      */
    18.     @Column(name = "CITY_CODE")
    19.     private String cityCode;
    20.  
    21.     /**
    22.      * 学区名称
    23.      */
    24.     @Column(name = "NAME")
    25.     private String name;
    26.  
    27.     /**
    28.      * 学区名称拼音
    29.      */
    30.     @Column(name = "NAME_SPELL")
    31.     private String nameSpell;
    32.  
    33.     /**
    34.      * 状态,1:正常,0:删除
    35.      */
    36.     @Column(name = "STATUS")
    37.     private Byte status;
    38.  
    39.     /**
    40.      * 添加人
    41.      */
    42.     @Column(name = "CREATE_ID")
    43.     private String createId;
    44.  
    45.  
    46.     @Transient
    47.     private Integer primaryCount; //小学数量
    48.     @Transient
    49.     private Integer middleCount; //初中数量
    50.     @Transient
    51.     private Integer highCount;//高中数量
    TK mybatis Mapper文件内容
    1. <?xml version="1.0" encoding="UTF-8" ?>
    2. <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
    3. <mapper namespace="com.jjshome.esf.core.dao.school.ISchoolAreaDAO" >
    4.   <resultMap id="BaseResultMap" type="com.jjshome.esf.common.entity.school.SchoolArea" >
    5.     <!--
    6.       WARNING - @mbggenerated
    7.     -->
    8.     <id column="ID" property="id" jdbcType="INTEGER" />
    9.     <result column="CITY_CODE" property="cityCode" jdbcType="VARCHAR" />
    10.     <result column="NAME" property="name" jdbcType="VARCHAR" />
    11.     <result column="NAME_SPELL" property="nameSpell" jdbcType="VARCHAR" />
    12.     <result column="STATUS" property="status" jdbcType="TINYINT" />
    13.     <result column="CREATE_ID" property="createId" jdbcType="VARCHAR" />
    14.     <result column="CREATE_DATE" property="createDate" jdbcType="TIMESTAMP" />
    15.     <result column="UPDATE_ID" property="updateId" jdbcType="VARCHAR" />
    16.     <result column="UPDATE_DATE" property="updateDate" jdbcType="TIMESTAMP" />
    17.     <result column="CITY_NAME" property="cityName"/>
    18.     <result column="PRIMARY_COUNT" property="primaryCount"/>
    19.     <result column="MIDDLE_COUNT" property="middleCount"/>
    20.     <result column="HIGH_COUNT" property="highCount"/>
    21.   </resultMap>
    22.  
    23.     <resultMap id="SchoolDetailArea" type="com.jjshome.esf.common.entity.school.SchoolAreaDetail"
    24.                extends="com.jjshome.esf.core.dao.school.ISchoolInfoDAO.SchoolInfo">
    25.         <result column="SCHOOL_AREA_NAME" property="schoolAreaName"/>
    26.     </resultMap>
    27.  
    28.     <select id="selectByPage" parameterType="map" resultMap="BaseResultMap">
    29.  
    30.         SELECT A.*, C.NAME AS CITY_NAME,
    31.         (SELECT COUNT(*) FROM XQ_SCHOOL_INFO B WHERE A.ID=B.AREA_ID AND B.TYPE='553' AND B.STATUS = 1 ) AS PRIMARY_COUNT,
    32.         (SELECT COUNT(*) FROM XQ_SCHOOL_INFO B WHERE A.ID=B.AREA_ID AND B.TYPE='554' AND B.STATUS = 1 ) AS MIDDLE_COUNT,
    33.         (SELECT COUNT(*) FROM XQ_SCHOOL_INFO B WHERE A.ID=B.AREA_ID AND B.TYPE='555' AND B.STATUS = 1 ) AS HIGH_COUNT
    34.         FROM XQ_SCHOOL_AREA A
    35.         LEFT JOIN YW_CITY_SETTING C ON A.CITY_CODE = C.CODE
    36.         <where>
    37.             <if test="name != null and name != '' "> A.NAME LIKE CONCAT('%',#{NAME},'%')  </if>
    38.             <if test="areaCityCode != null and areaCityCode != '' "> A.CITY_CODE = #{areaCityCode}  </if>
    39.             <if test="keywords != null and keywords != '' ">
    40.                 ( A.NAME LIKE CONCAT('%',#{keywords},'%')
    41.                 )
    42.             </if>
    43.         </where>
    44.     </select>
    45.  
    46.  
    47.     <select id="selectAreaIdAndKeyWord" parameterType="java.util.Map" resultMap="BaseResultMap">
    48.         SELECT
    49.         *
    50.         FROM
    51.         XQ_SCHOOL_AREA
    52.         WHERE
    53.         1=1
    54.         <if test="cityId != null">
    55.             AND CITY_CODE=#{cityId}
    56.         </if>
    57.         <if test="key != null and key!=''">
    58.             AND (NAME like CONCAT(#{key},'%' ) or NAME_SPELL like CONCAT(#{key},'%' ))
    59.         </if>
    60.         AND
    61.         STATUS=1
    62.         <if test="pageSize != null">
    63.             limit #{pageSize}
    64.         </if>
    65.     </select>
    66.  
    67.  
    68.     <!--查询学区详情列表-->
    69.     <select id="selectAreaDetailByPage" parameterType="map" resultMap="SchoolDetailArea">
    70.  
    71.         SELECT A.* ,B.NAME AS SCHOOL_AREA_NAME ,C.NAME AS CITY_NAME,D.NAME AS AREA_NAME FROM XQ_SCHOOL_INFO A
    72.         LEFT JOIN XQ_SCHOOL_AREA B ON A.AREA_ID = B.ID
    73.         LEFT JOIN YW_CITY_SETTING C ON A.CITY_CODE = C.CODE
    74.         LEFT JOIN YW_CITY_SETTING D ON A.AREA_CODE = D.CODE
    75.  
    76.         WHERE A.STATUS = 1 AND B.STATUS =1
    77.         <if test="areaId != null and areaId.length() &gt; 0">  AND A.AREA_ID = #{areaId} </if>
    78.         <if test="typeList != null and typeList.size &gt; 0">
    79.             AND
    80.             A.TYPE IN
    81.             <foreach collection="typeList"  item="item" index="index" open="(" close=")" separator=",">
    82.                 #{item}
    83.             </foreach>
    84.         </if>
    85.         <if test="name != null and name != '' "> AND   A.NAME LIKE CONCAT('%',#{name},'%')  </if>
    86.     </select>
    87.  
    88. </mapper>
    普通mybatisMapper文件
    1. <?xml version="1.0" encoding="UTF-8" ?>
    2. <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
    3. <mapper namespace="com.jjshome.esf.core.dao.school.ISchoolInfoDAO">
    4.     <resultMap id="SchoolInfo" type="com.jjshome.esf.common.entity.school.SchoolInfo">
    5.         <id column="ID" property="id"/>
    6.         <result column="NAME" property="name"/>
    7.         <result column="NAME_SPELL" property="nameSpell"/>
    8.         <result column="ALIAS" property="alias"/>
    9.         <result column="ALIAS_SPELL" property="aliasSpell"/>
    10.         <result column="TYPE" property="type" typeHandler="com.jjshome.esf.core.component.handler.DictValueTypeHandler"/>
    11.         <result column="AREA_ID" property="areaId"/>
    12.         <result column="CITY_CODE" property="cityCode"/>
    13.         <result column="AREA_CODE" property="areaCode"/>
    14.         <result column="ADDR" property="addr"/>
    15.         <result column="START_TIME" property="startTime"/>
    16.         <result column="MOTTO" property="motto"/>
    17.         <result column="WEB_SITE" property="webSite"/>
    18.         <result column="PHONE" property="phone"/>
    19.         <result column="FEATURE" property="feature" typeHandler="com.jjshome.esf.core.component.handler.DictValueListTypeHandler"/>
    20.         <result column="LNG" property="lng"/>
    21.         <result column="LAT" property="lat"/>
    22.         <result column="UNIT_PRICE" property="unitPrice"/>
    23.         <result column="SALE_PRICE" property="salePrice"/>
    24.         <result column="NATURE_TYPE" property="natureType" typeHandler="com.jjshome.esf.core.component.handler.DictValueTypeHandler"/>
    25.         <result column="NATURE_CITY" property="natureCity" typeHandler="com.jjshome.esf.core.component.handler.DictValueTypeHandler"/>
    26.         <result column="SCHOOL_DEGREE" property="schoolDegree"/>
    27.         <result column="ENROL_DEGREE" property="enrolDegree"/>
    28.         <result column="IMG_DEGREE" property="imgDegree"/>
    29.         <result column="STATUS" property="status"/>
    30.         <result column="CREATE_ID" property="createId"/>
    31.         <result column="CREATE_DATE" property="createDate"/>
    32.         <result column="UPDATE_ID" property="updateId"/>
    33.         <result column="UPDATE_DATE" property="updateDate"/>
    34.  
    35.         <result column="CITY_NAME" property="cityName" />
    36.         <result column="AREA_NAME" property="areaName" />
    37.         <result column="SCHOOL_DISTRICT_NAME" property="schoolDistrictName" />
    38.         <result column="SALE_COUNT" property="saleCount" />
    39.     </resultMap>
    40.  
    41.     <sql id="Base_Column_List">
    42.         ID,
    43.         NAME,
    44.         NAME_SPELL,
    45.         ALIAS,
    46.         ALIAS_SPELL,
    47.         TYPE,
    48.         AREA_ID,
    49.         CITY_CODE,
    50.         AREA_CODE,
    51.         ADDR,
    52.         START_TIME,
    53.         MOTTO,
    54.         WEB_SITE,
    55.         PHONE,
    56.         FEATURE,
    57.         LNG,
    58.         LAT,
    59.         UNIT_PRICE,
    60.         SALE_PRICE,
    61.         NATURE_TYPE,
    62.         NATURE_CITY,
    63.         SCHOOL_DEGREE,
    64.         ENROL_DEGREE,
    65.         IMG_DEGREE,
    66.         STATUS,
    67.         CREATE_ID,
    68.         CREATE_DATE,
    69.         UPDATE_ID,
    70.         UPDATE_DATE,
    71.         SALE_COUNT,
    72.         SALE_COUNT
    73.     </sql>
    74.  
    75.     <select id="selectById" resultMap="SchoolInfo" parameterType="java.lang.Integer">
    76.         SELECT
    77.             i.*,
    78.             yc.NAME as 'CITY_NAME',
    79.             ya.NAME as 'AREA_NAME',
    80.             xq.NAME as 'SCHOOL_DISTRICT_NAME'
    81.         FROM
    82.             XQ_SCHOOL_INFO i
    83.             LEFT JOIN YW_CITY_SETTING yc ON i.CITY_CODE = yc.CODE
    84.             LEFT JOIN YW_CITY_SETTING ya ON i.AREA_CODE = ya.CODE
    85.             LEFT JOIN XQ_SCHOOL_AREA xq ON i.AREA_ID = xq.ID
    86.         WHERE
    87.             i.ID = #{id,jdbcType=INTEGER}
    88.     </select>
    89.  
    90.     <delete id="deleteById" parameterType="java.util.Map">
    91.         UPDATE
    92.             XQ_SCHOOL_INFO
    93.         SET
    94.             STATUS = 0,
    95.             UPDATE_ID = #{updateId},
    96.             UPDATE_DATE = NOW()
    97.         WHERE
    98.             ID = #{id,jdbcType=INTEGER}
    99.     </delete>
    100.  
    101.     <delete id="batchDeleteByIds" parameterType="java.util.Map">
    102.         UPDATE
    103.             XQ_SCHOOL_INFO
    104.         SET
    105.             STATUS = 0,
    106.             UPDATE_ID = #{updateId},
    107.             UPDATE_DATE = NOW()
    108.         WHERE
    109.         ID IN (${ids})
    110.     </delete>
    111.  
    112.     <update id="deleteAreaRelation" parameterType="com.jjshome.esf.common.entity.school.SchoolInfo">
    113.         update XQ_SCHOOL_INFO
    114.             SET AREA_ID = NULL,
    115.             UPDATE_DATE = NOW()
    116.         WHERE
    117.         ID = #{id}
    118.     </update>
    119.  
    120.     <insert id="insert" parameterType="com.jjshome.esf.common.entity.school.SchoolInfo">
    121.         <selectKey resultType="Integer" keyProperty="id">
    122.             SELECT LAST_INSERT_ID()
    123.         </selectKey>
    124.         INSERT INTO XQ_SCHOOL_INFO
    125.             (NAME,
    126.             NAME_SPELL,
    127.             ALIAS,
    128.             ALIAS_SPELL,
    129.             TYPE,
    130.             AREA_ID,
    131.             CITY_CODE,
    132.             AREA_CODE,
    133.             ADDR,
    134.             START_TIME,
    135.             MOTTO,
    136.             WEB_SITE,
    137.             PHONE,
    138.             FEATURE,
    139.             LNG,
    140.             LAT,
    141.             UNIT_PRICE,
    142.             SALE_PRICE,
    143.             NATURE_TYPE,
    144.             NATURE_CITY,
    145.             SCHOOL_DEGREE,
    146.             ENROL_DEGREE,
    147.             IMG_DEGREE,
    148.             STATUS,
    149.             CREATE_ID,
    150.             CREATE_DATE,
    151.             UPDATE_ID,
    152.             UPDATE_DATE)
    153.         VALUES
    154.             (#{name,jdbcType=VARCHAR},
    155.             #{nameSpell,jdbcType=VARCHAR},
    156.             #{alias,jdbcType=VARCHAR},
    157.             #{aliasSpell,jdbcType=VARCHAR},
    158.             #{type,jdbcType=INTEGER},
    159.             #{areaId,jdbcType=INTEGER},
    160.             #{cityCode,jdbcType=VARCHAR},
    161.             #{areaCode,jdbcType=VARCHAR},
    162.             #{addr,jdbcType=VARCHAR},
    163.             #{startTime,jdbcType=DATE},
    164.             #{motto,jdbcType=VARCHAR},
    165.             #{webSite,jdbcType=VARCHAR},
    166.             #{phone,jdbcType=VARCHAR},
    167.             #{feature,jdbcType=VARCHAR},
    168.             #{lng,jdbcType=DECIMAL},
    169.             #{lat,jdbcType=DECIMAL},
    170.             #{unitPrice},
    171.             #{salePrice},
    172.             #{natureType,jdbcType=INTEGER},
    173.             #{natureCity,jdbcType=INTEGER},
    174.             #{schoolDegree,jdbcType=INTEGER},
    175.             #{enrolDegree,jdbcType=INTEGER},
    176.             #{imgDegree,jdbcType=INTEGER},
    177.             #{status,jdbcType=TINYINT},
    178.             #{createId,jdbcType=VARCHAR},
    179.             #{createDate,jdbcType=DATE},
    180.             #{updateId,jdbcType=VARCHAR},
    181.             #{updateDate,jdbcType=DATE})
    182.     </insert>
    183.     <insert id="insertSelective" parameterType="com.jjshome.esf.common.entity.school.SchoolInfo">
    184.         <selectKey resultType="Integer" keyProperty="id">
    185.             SELECT LAST_INSERT_ID()
    186.         </selectKey>
    187.         INSERT INTO XQ_SCHOOL_INFO
    188.         <trim prefix="(" suffix=")" suffixOverrides=",">
    189.             <if test="name != null">
    190.                 NAME,
    191.             </if>
    192.             <if test="nameSpell != null">
    193.                 NAME_SPELL,
    194.             </if>
    195.             <if test="alias != null">
    196.                 ALIAS,
    197.             </if>
    198.             <if test="aliasSpell != null">
    199.                 ALIAS_SPELL,
    200.             </if>
    201.             <if test="type != null">
    202.                 TYPE,
    203.             </if>
    204.             <if test="areaId != null">
    205.                 AREA_ID,
    206.             </if>
    207.             <if test="cityCode != null">
    208.                 CITY_CODE,
    209.             </if>
    210.             <if test="areaCode != null">
    211.                 AREA_CODE,
    212.             </if>
    213.             <if test="addr != null">
    214.                 ADDR,
    215.             </if>
    216.             <if test="startTime != null">
    217.                 START_TIME,
    218.             </if>
    219.             <if test="motto != null">
    220.                 MOTTO,
    221.             </if>
    222.             <if test="webSite != null">
    223.                 WEB_SITE,
    224.             </if>
    225.             <if test="phone != null">
    226.                 PHONE,
    227.             </if>
    228.             <if test="feature != null">
    229.                 FEATURE,
    230.             </if>
    231.             <if test="lng != null">
    232.                 LNG,
    233.             </if>
    234.             <if test="lat != null">
    235.                 LAT,
    236.             </if>
    237.             <if test="UNIT_PRICE != null">
    238.                 UNIT_PRICE,
    239.             </if>
    240.             <if test="SALE_PRICE != null ">
    241.                 SALE_PRICE,
    242.             </if>
    243.             <if test="natureType != null">
    244.                 NATURE_TYPE,
    245.             </if>
    246.             <if test="natureCity != null">
    247.                 NATURE_CITY,
    248.             </if>
    249.             <if test="schoolDegree != null">
    250.                 SCHOOL_DEGREE,
    251.             </if>
    252.             <if test="enrolDegree != null">
    253.                 ENROL_DEGREE,
    254.             </if>
    255.             <if test="imgDegree != null">
    256.                 IMG_DEGREE,
    257.             </if>
    258.             <if test="status != null">
    259.                 STATUS,
    260.             </if>
    261.             <if test="createId != null">
    262.                 CREATE_ID,
    263.             </if>
    264.             <if test="createDate != null">
    265.                 CREATE_DATE,
    266.             </if>
    267.             <if test="updateId != null">
    268.                 UPDATE_ID,
    269.             </if>
    270.             <if test="updateDate != null">
    271.                 UPDATE_DATE,
    272.             </if>
    273.         </trim>
    274.         <trim prefix="VALUES (" suffix=")" suffixOverrides=",">
    275.             <if test="name != null">
    276.                 #{name,jdbcType=VARCHAR},
    277.             </if>
    278.             <if test="nameSpell != null">
    279.                 #{nameSpell,jdbcType=VARCHAR},
    280.             </if>
    281.             <if test="alias != null">
    282.                 #{alias,jdbcType=VARCHAR},
    283.             </if>
    284.             <if test="aliasSpell != null">
    285.                 #{aliasSpell,jdbcType=VARCHAR},
    286.             </if>
    287.             <if test="type != null">
    288.                 #{type,jdbcType=INTEGER},
    289.             </if>
    290.             <if test="areaId != null">
    291.                 #{areaId,jdbcType=INTEGER},
    292.             </if>
    293.             <if test="cityCode != null">
    294.                 #{cityCode,jdbcType=VARCHAR},
    295.             </if>
    296.             <if test="areaCode != null">
    297.                 #{areaCode,jdbcType=VARCHAR},
    298.             </if>
    299.             <if test="addr != null">
    300.                 #{addr,jdbcType=VARCHAR},
    301.             </if>
    302.             <if test="startTime != null">
    303.                 #{startTime,jdbcType=DATE},
    304.             </if>
    305.             <if test="motto != null">
    306.                 #{motto,jdbcType=VARCHAR},
    307.             </if>
    308.             <if test="webSite != null">
    309.                 #{webSite,jdbcType=VARCHAR},
    310.             </if>
    311.             <if test="phone != null">
    312.                 #{phone,jdbcType=VARCHAR},
    313.             </if>
    314.             <if test="feature != null">
    315.                 #{feature,jdbcType=VARCHAR},
    316.             </if>
    317.             <if test="lng != null">
    318.                 #{lng,jdbcType=DECIMAL},
    319.             </if>
    320.             <if test="lat != null">
    321.                 #{lat,jdbcType=DECIMAL},
    322.             </if>
    323.             <if test="unitPrice ! =null">
    324.                 #{unitPrice},
    325.             </if>
    326.             <if test="salePrice">
    327.                 #{salePrice},
    328.             </if>
    329.             <if test="natureType != null">
    330.                 #{natureType,jdbcType=INTEGER},
    331.             </if>
    332.             <if test="natureCity != null">
    333.                 #{natureCity,jdbcType=INTEGER},
    334.             </if>
    335.             <if test="schoolDegree != null">
    336.                 #{schoolDegree,jdbcType=INTEGER},
    337.             </if>
    338.             <if test="enrolDegree != null">
    339.                 #{enrolDegree,jdbcType=INTEGER},
    340.             </if>
    341.             <if test="imgDegree != null">
    342.                 #{imgDegree,jdbcType=INTEGER},
    343.             </if>
    344.             <if test="status != null">
    345.                 #{status,jdbcType=TINYINT},
    346.             </if>
    347.             <if test="createId != null">
    348.                 #{createId,jdbcType=VARCHAR},
    349.             </if>
    350.             <if test="createDate != null">
    351.                 #{createDate,jdbcType=DATE},
    352.             </if>
    353.             <if test="updateId != null">
    354.                 #{updateId,jdbcType=VARCHAR},
    355.             </if>
    356.             <if test="updateDate != null">
    357.                 #{updateDate,jdbcType=DATE},
    358.             </if>
    359.         </trim>
    360.     </insert>
    361.     <update id="updateSelective" parameterType="com.jjshome.esf.common.entity.school.SchoolInfo">
    362.         UPDATE XQ_SCHOOL_INFO
    363.         <set>
    364.             <if test="name != null">
    365.                 NAME=#{name,jdbcType=VARCHAR},
    366.             </if>
    367.             <if test="nameSpell != null">
    368.                 NAME_SPELL=#{nameSpell,jdbcType=VARCHAR},
    369.             </if>
    370.             <if test="alias != null">
    371.                 ALIAS=#{alias,jdbcType=VARCHAR},
    372.             </if>
    373.             <if test="aliasSpell != null">
    374.                 ALIAS_SPELL=#{aliasSpell,jdbcType=VARCHAR},
    375.             </if>
    376.             <if test="type != null">
    377.                 TYPE=#{type,jdbcType=INTEGER},
    378.             </if>
    379.             <if test="type != null">
    380.                 AREA_ID=#{areaId,jdbcType=INTEGER},
    381.             </if>
    382.  
    383.             <if test="cityCode != null">
    384.                 CITY_CODE=#{cityCode,jdbcType=VARCHAR},
    385.             </if>
    386.             <if test="areaCode != null">
    387.                 AREA_CODE=#{areaCode,jdbcType=VARCHAR},
    388.             </if>
    389.             <if test="addr != null">
    390.                 ADDR=#{addr,jdbcType=VARCHAR},
    391.             </if>
    392.             <if test="startTime != null">
    393.                 START_TIME=#{startTime,jdbcType=DATE},
    394.             </if>
    395.             <if test="motto != null">
    396.                 MOTTO=#{motto,jdbcType=VARCHAR},
    397.             </if>
    398.             <if test="webSite != null">
    399.                 WEB_SITE=#{webSite,jdbcType=VARCHAR},
    400.             </if>
    401.             <if test="phone != null">
    402.                 PHONE=#{phone,jdbcType=VARCHAR},
    403.             </if>
    404.             <if test="feature != null">
    405.                 FEATURE=#{feature,jdbcType=VARCHAR},
    406.             </if>
    407.             <if test="lng != null">
    408.                 LNG=#{lng,jdbcType=DECIMAL},
    409.             </if>
    410.             <if test="lat != null">
    411.                 LAT=#{lat,jdbcType=DECIMAL},
    412.             </if>
    413.             <if test="salePrice != null">
    414.                 UNIT_PRICE=#{unitPrice},
    415.             </if>
    416.             <if test="salePrice != null">
    417.                 SALE_PRICE=#{salePrice},
    418.             </if>
    419.             <if test="natureType != null">
    420.                 NATURE_TYPE=#{natureType,jdbcType=INTEGER},
    421.             </if>
    422.             <if test="natureCity != null">
    423.                 NATURE_CITY=#{natureCity,jdbcType=INTEGER},
    424.             </if>
    425.             <if test="schoolDegree != null">
    426.                 SCHOOL_DEGREE=#{schoolDegree,jdbcType=INTEGER},
    427.             </if>
    428.             <if test="enrolDegree != null">
    429.                 ENROL_DEGREE=#{enrolDegree,jdbcType=INTEGER},
    430.             </if>
    431.             <if test="imgDegree != null">
    432.                 IMG_DEGREE=#{imgDegree,jdbcType=INTEGER},
    433.             </if>
    434.             <if test="status != null">
    435.                 STATUS=#{status,jdbcType=TINYINT},
    436.             </if>
    437.             <if test="createId != null">
    438.                 CREATE_ID=#{createId,jdbcType=VARCHAR},
    439.             </if>
    440.             <if test="createDate != null">
    441.                 CREATE_DATE=#{createDate,jdbcType=DATE},
    442.             </if>
    443.             <if test="updateId != null">
    444.                 UPDATE_ID=#{updateId,jdbcType=VARCHAR},
    445.             </if>
    446.             <if test="updateDate != null">
    447.                 UPDATE_DATE=#{updateDate,jdbcType=DATE},
    448.             </if>
    449.             <if test="saleCount != null">
    450.                 SALE_COUNT=#{saleCount},
    451.             </if>
    452.         </set>
    453.         WHERE
    454.             ID = #{id,jdbcType=INTEGER}
    455.     </update>
    456.     <select id="selectList" parameterType="com.jjshome.esf.common.entity.school.SchoolInfo" resultMap="SchoolInfo">
    457.         SELECT
    458.             <include refid="Base_Column_List" />
    459.         FROM
    460.             XQ_SCHOOL_INFO
    461.         WHERE
    462.             STATUS = 1
    463.             <if test="areaId != null and areaId != null"> AND AREA_ID = #{areaId} </if>
    464.  
    465.     </select>
    466.  
    467.     <select id="selectSchoolInfoAll" resultMap="SchoolInfo">
    468.         SELECT
    469.             <include refid="Base_Column_List" />
    470.         FROM
    471.             XQ_SCHOOL_INFO
    472.         WHERE
    473.             STATUS = 1
    474.         ORDER BY ID DESC
    475.     </select>
    476.  
    477.     <select id="selectSchoolInfo" parameterType="com.jjshome.esf.common.model.SchoolInfoSearchModel" resultMap="SchoolInfo">
    478.         SELECT
    479.             i.*,
    480.             yc.NAME as 'CITY_NAME',
    481.             ya.NAME as 'AREA_NAME'
    482.         FROM
    483.             XQ_SCHOOL_INFO i
    484.             LEFT JOIN YW_CITY_SETTING yc ON i.CITY_CODE = yc.CODE
    485.             LEFT JOIN YW_CITY_SETTING ya ON i.AREA_CODE = ya.CODE
    486.         WHERE
    487.             i.STATUS = 1
    488.         <if test="city != null and city != '' ">
    489.             AND i.CITY_CODE=#{city}
    490.         </if>
    491.         <if test="area != null and area != '' ">
    492.             AND i.AREA_CODE=#{area}
    493.         </if>
    494.         <if test="schoolId != null and schoolId != ''">
    495.             AND i.ID=#{schoolId}
    496.         </if>
    497.  
    498.         <if test="schoolName != null and schoolName != ''">
    499.             AND i.NAME LIKE concat('%',#{schoolName},'%')
    500.         </if>
    501.  
    502.         <if test="schoolDistrictId != null and schoolDistrictId != ''">
    503.             AND i.AREA_ID=#{schoolDistrictId}
    504.         </if>
    505.         <if test="schoolType != null and schoolType != '' ">
    506.             AND i.TYPE=#{schoolType}
    507.         </if>
    508.         <if test="key != null and key != '' ">
    509.             AND (i.NAME LIKE CONCAT('%',#{key},'%') OR  i.ALIAS LIKE CONCAT('%', #{key}, '%'))
    510.         </if>
    511.         /*priceType == 1：起售价 2：房源售均价*/
    512.         <if test="priceType == 1">
    513.             <if test="salePriceStart != null and salePriceStart != '' ">
    514.                 AND SALE_PRICE &gt;= #{salePriceStart}
    515.             </if>
    516.             <if test="salePriceEnd != null and salePriceEnd != '' ">
    517.                 AND SALE_PRICE &lt;= #{salePriceEnd}
    518.             </if>
    519.         </if>
    520.         <if test="priceType == 2">
    521.             <if test="salePriceStart != null and salePriceStart != '' ">
    522.                 AND UNIT_PRICE &gt;= #{salePriceStart}
    523.             </if>
    524.             <if test="salePriceEnd != null and salePriceEnd != '' ">
    525.                 AND UNIT_PRICE &lt;= #{salePriceEnd}
    526.             </if>
    527.         </if>
    528.         <if test="perfectSituation == 1">
    529.             AND SCHOOL_DEGREE = 100
    530.         </if>
    531.         <if test="perfectSituation == 2">
    532.             AND SCHOOL_DEGREE &lt; 100
    533.         </if>
    534.         ORDER BY ID DESC
    535.  
    536.     </select>
    537.  
    538.     <select id="selectSchoolByNameAndCityAndArea" parameterType="java.util.Map" resultMap="SchoolInfo">
    539.         SELECT
    540.             <include refid="Base_Column_List" />
    541.         FROM
    542.             XQ_SCHOOL_INFO
    543.         WHERE
    544.             STATUS = 1
    545.         AND NAME = #{name}
    546.         AND CITY_CODE=#{city}
    547.         AND AREA_CODE=#{area}
    548.         AND TYPE = #{type}
    549.     </select>
    550.  
    551.     <select id="selectAreaIdAndKeyWord" parameterType="java.util.Map" resultMap="SchoolInfo">
    552.         SELECT
    553.         XSI.*,CYCS.NAME AS  'CITY_NAME',AYCS.NAME AS  'AREA_NAME'
    554.         FROM
    555.             XQ_SCHOOL_INFO XSI
    556.             LEFT JOIN YW_CITY_SETTING CYCS ON  XSI.CITY_CODE = CYCS.CODE
    557.             LEFT JOIN YW_CITY_SETTING AYCS ON XSI.AREA_CODE = AYCS. CODE
    558.         WHERE
    559.             1=1
    560.         <if test="areaId != null and areaId != ''">
    561.             AND XSI.AREA_CODE=#{areaId}
    562.         </if>
    563.         <if test="key != null and key!=''">
    564.             AND (XSI.NAME like CONCAT(#{key},'%' ) or XSI.NAME_SPELL like CONCAT(#{key},'%' ))
    565.         </if>
    566.         AND
    567.         XSI.STATUS=1
    568.         <if test="pageSize != null">
    569.             limit #{pageSize}
    570.         </if>
    571.     </select>
    572.  
    573.  
    574.     <select id="selectAreaIdList" parameterType="map" resultType="integer">
    575.         SELECT DISTINCT AREA_ID FROM XQ_SCHOOL_INFO WHERE NAME LIKE CONCAT('%',#{schoolName},'%')
    576.     </select>
    577.  
    578.  
    579.     <select id="selectSchoolList" parameterType="map" resultMap="SchoolInfo">
    580.         SELECT
    581.         <include refid="Base_Column_List" />
    582.         FROM
    583.         XQ_SCHOOL_INFO
    584.         WHERE
    585.         STATUS = 1
    586.         <if test="idList != null and idList.size gt 0">
    587.             AND ID IN
    588.             <foreach collection="idList"  item="item" index="index" open="(" close=")" separator=",">
    589.                 #{item}
    590.             </foreach>
    591.         </if>
    592.  
    593.         <if test="areaId != null and areaId != null"> AND AREA_ID = #{areaId} </if>
    594.  
    595.     </select>
    596. </mapper>
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  • 原文地址：https://www.cnblogs.com/jpfss/p/10882165.html
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