使用Mybatis-Generator自动生成Dao、Model、Mapping相关文件

其他 2018-05-10 13:23:47 阅读次数: 1

Mybatis属于半自动ORM，在使用这个框架中，工作量最大的就是书写Mapping的映射文件，由于手动书写很容易出错，我们可以利用Mybatis-Generator来帮我们自动生成文件。

1、相关文件

关于Mybatis-Generator的下载可以到这个地址：https://github.com/mybatis/generator/releases

由于我使用的是Mysql数据库，这里需要在准备一个连接mysql数据库的驱动jar包

以下是相关文件截图:
这里写图片描述

和Hibernate逆向生成一样，这里也需要一个配置文件：

2、generatorConfig.xml

<?xml version="1.0" encoding="UTF-8"?>
  <!DOCTYPE generatorConfiguration
    PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
    "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
  <generatorConfiguration>
      <!--数据库驱动-->
      <classPathEntry    location="C:/WorkSpace/longweb/WebContent/WEB-INF/lib/mysql-jdbc-5.1.25.jar"/>
      <context id="DB2Tables"    targetRuntime="MyBatis3">
           <!--时间与注释-->
          <commentGenerator>
             <property name="suppressDate" value="true"/>
             <property name="suppressAllComments" value="true"/>
         </commentGenerator>
         <!--数据库链接地址账号密码-->
         <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://127.0.0.1:3306/lpt_data" userId="root" password="root">
         </jdbcConnection>
         <!--如果精度>0或者长度>18，就会使用java.math.BigDecimal-->
         <!--如果精度=0并且10<=长度<=18，就会使用java.lang.Long-->
         <!--如果精度=0并且5<=长度<=9，就会使用java.lang.Integer-->
         <!--如果精度=0并且长度<5，就会使用java.lang.Short-->
         <javaTypeResolver>
             <property name="forceBigDecimals" value="false"/>
         </javaTypeResolver>
         <!--生成Model类存放位置-->
         <javaModelGenerator targetPackage="com.chw.controller" targetProject="longweb">
            <!--enableSubPackages:如果true，MBG会根据catalog和schema来生成子包。如果false就会直接用targetPackage属性。默认为false。  -->
             <property name="enableSubPackages" value="true"/>
             <!-- trimStrings:是否对数据库查询结果进行trim操作，如果设置为true就会生成类似这样public void setUsername(String username) {this.username = username == null ? null : username.trim();}的setter方法。默认值为false。 -->
             <property name="trimStrings" value="true"/>
         </javaModelGenerator>
         <!--生成映射文件存放位置-->
         <sqlMapGenerator targetPackage="com.chw.controller" targetProject="longweb">
             <property name="enableSubPackages" value="true"/>
         </sqlMapGenerator>
         <!--生成Dao类存放位置-->
         <javaClientGenerator type="XMLMAPPER" targetPackage="com.chw.controller" targetProject="longweb">
             <property name="enableSubPackages" value="true"/>
         </javaClientGenerator>
         <!--生成对应表及类名-->
         <table tableName="sys_user" domainObjectName="sysUser" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
     </context>
 </generatorConfiguration>

需要修改文件配置的地方我都已经把注释标注出来了，这里的相关路径（如数据库驱动包，生成对应的相关文件位置可以自定义）不能带有中文。

上面配置文件中的：

<table tableName="message" domainObjectName="Messgae" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>

tableName和domainObjectName为必选项，分别代表数据库表名和生成的实力类名，其余的可以自定义去选择（一般情况下均为false）。

3、启动
这里写图片描述

生成相关代码
sysUser.java

package com.chw.controller;

import java.util.Date;

public class sysUser {
    private String userid;

    private String username;

    private String password;

    private String organizationid;

    private String roleids;

    private Integer status;

    private String description;

    private String mc;

    private Date cjsj;

    private Date xgsj;

    private String yhlx;

    private String updateVer;

    private String yhemail;

    private String phone;

    private String mailbox;

    private String ifRetailer;

    private String ifWholesaler;

    private String ifAgent;

    private String ifManagement;

    private String tgOrgid;

    private Double lbs;

    private String yhTx;

    private Date createTime;

    private Date updateTime;

    public String getUserid() {
        return userid;
    }

    public void setUserid(String userid) {
        this.userid = userid == null ? null : userid.trim();
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username == null ? null : username.trim();
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password == null ? null : password.trim();
    }

    public String getOrganizationid() {
        return organizationid;
    }

    public void setOrganizationid(String organizationid) {
        this.organizationid = organizationid == null ? null : organizationid.trim();
    }

    public String getRoleids() {
        return roleids;
    }

    public void setRoleids(String roleids) {
        this.roleids = roleids == null ? null : roleids.trim();
    }

    public Integer getStatus() {
        return status;
    }

    public void setStatus(Integer status) {
        this.status = status;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description == null ? null : description.trim();
    }

    public String getMc() {
        return mc;
    }

    public void setMc(String mc) {
        this.mc = mc == null ? null : mc.trim();
    }

    public Date getCjsj() {
        return cjsj;
    }

    public void setCjsj(Date cjsj) {
        this.cjsj = cjsj;
    }

    public Date getXgsj() {
        return xgsj;
    }

    public void setXgsj(Date xgsj) {
        this.xgsj = xgsj;
    }

    public String getYhlx() {
        return yhlx;
    }

    public void setYhlx(String yhlx) {
        this.yhlx = yhlx == null ? null : yhlx.trim();
    }

    public String getUpdateVer() {
        return updateVer;
    }

    public void setUpdateVer(String updateVer) {
        this.updateVer = updateVer == null ? null : updateVer.trim();
    }

    public String getYhemail() {
        return yhemail;
    }

    public void setYhemail(String yhemail) {
        this.yhemail = yhemail == null ? null : yhemail.trim();
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone == null ? null : phone.trim();
    }

    public String getMailbox() {
        return mailbox;
    }

    public void setMailbox(String mailbox) {
        this.mailbox = mailbox == null ? null : mailbox.trim();
    }

    public String getIfRetailer() {
        return ifRetailer;
    }

    public void setIfRetailer(String ifRetailer) {
        this.ifRetailer = ifRetailer == null ? null : ifRetailer.trim();
    }

    public String getIfWholesaler() {
        return ifWholesaler;
    }

    public void setIfWholesaler(String ifWholesaler) {
        this.ifWholesaler = ifWholesaler == null ? null : ifWholesaler.trim();
    }

    public String getIfAgent() {
        return ifAgent;
    }

    public void setIfAgent(String ifAgent) {
        this.ifAgent = ifAgent == null ? null : ifAgent.trim();
    }

    public String getIfManagement() {
        return ifManagement;
    }

    public void setIfManagement(String ifManagement) {
        this.ifManagement = ifManagement == null ? null : ifManagement.trim();
    }

    public String getTgOrgid() {
        return tgOrgid;
    }

    public void setTgOrgid(String tgOrgid) {
        this.tgOrgid = tgOrgid == null ? null : tgOrgid.trim();
    }

    public Double getLbs() {
        return lbs;
    }

    public void setLbs(Double lbs) {
        this.lbs = lbs;
    }

    public String getYhTx() {
        return yhTx;
    }

    public void setYhTx(String yhTx) {
        this.yhTx = yhTx == null ? null : yhTx.trim();
    }

    public Date getCreateTime() {
        return createTime;
    }

    public void setCreateTime(Date createTime) {
        this.createTime = createTime;
    }

    public Date getUpdateTime() {
        return updateTime;
    }

    public void setUpdateTime(Date updateTime) {
        this.updateTime = updateTime;
    }
}

sysUserMapper.java

package com.chw.controller;

import com.chw.controller.sysUser;

public interface sysUserMapper {
    int deleteByPrimaryKey(String userid);

    int insert(sysUser record);

    int insertSelective(sysUser record);

    sysUser selectByPrimaryKey(String userid);

    int updateByPrimaryKeySelective(sysUser record);

    int updateByPrimaryKey(sysUser record);
}

sysUserMapper.xml

<?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.chw.controller.sysUserMapper">
  <resultMap id="BaseResultMap" type="com.chw.controller.sysUser">
    <id column="userid" jdbcType="VARCHAR" property="userid" />
    <result column="username" jdbcType="VARCHAR" property="username" />
    <result column="password" jdbcType="VARCHAR" property="password" />
    <result column="organizationid" jdbcType="VARCHAR" property="organizationid" />
    <result column="roleids" jdbcType="VARCHAR" property="roleids" />
    <result column="status" jdbcType="INTEGER" property="status" />
    <result column="description" jdbcType="VARCHAR" property="description" />
    <result column="MC" jdbcType="VARCHAR" property="mc" />
    <result column="CJSJ" jdbcType="TIMESTAMP" property="cjsj" />
    <result column="XGSJ" jdbcType="TIMESTAMP" property="xgsj" />
    <result column="YHLX" jdbcType="VARCHAR" property="yhlx" />
    <result column="UPDATE_VER" jdbcType="VARCHAR" property="updateVer" />
    <result column="YHEMAIL" jdbcType="VARCHAR" property="yhemail" />
    <result column="phone" jdbcType="VARCHAR" property="phone" />
    <result column="mailbox" jdbcType="VARCHAR" property="mailbox" />
    <result column="if_retailer" jdbcType="VARCHAR" property="ifRetailer" />
    <result column="if_wholesaler" jdbcType="VARCHAR" property="ifWholesaler" />
    <result column="if_agent" jdbcType="VARCHAR" property="ifAgent" />
    <result column="if_management" jdbcType="VARCHAR" property="ifManagement" />
    <result column="tg_orgid" jdbcType="VARCHAR" property="tgOrgid" />
    <result column="lbs" jdbcType="DOUBLE" property="lbs" />
    <result column="yh_tx" jdbcType="VARCHAR" property="yhTx" />
    <result column="create_time" jdbcType="TIMESTAMP" property="createTime" />
    <result column="update_time" jdbcType="TIMESTAMP" property="updateTime" />
  </resultMap>
  <sql id="Base_Column_List">
    userid, username, password, organizationid, roleids, status, description, MC, CJSJ, 
    XGSJ, YHLX, UPDATE_VER, YHEMAIL, phone, mailbox, if_retailer, if_wholesaler, if_agent, 
    if_management, tg_orgid, lbs, yh_tx, create_time, update_time
  </sql>
  <select id="selectByPrimaryKey" parameterType="java.lang.String" resultMap="BaseResultMap">
    select 
    <include refid="Base_Column_List" />
    from sys_user
    where userid = #{userid,jdbcType=VARCHAR}
  </select>
  <delete id="deleteByPrimaryKey" parameterType="java.lang.String">
    delete from sys_user
    where userid = #{userid,jdbcType=VARCHAR}
  </delete>
  <insert id="insert" parameterType="com.chw.controller.sysUser">
    insert into sys_user (userid, username, password, 
      organizationid, roleids, status, 
      description, MC, CJSJ, 
      XGSJ, YHLX, UPDATE_VER, 
      YHEMAIL, phone, mailbox, 
      if_retailer, if_wholesaler, if_agent, 
      if_management, tg_orgid, lbs, 
      yh_tx, create_time, update_time
      )
    values (#{userid,jdbcType=VARCHAR}, #{username,jdbcType=VARCHAR}, #{password,jdbcType=VARCHAR}, 
      #{organizationid,jdbcType=VARCHAR}, #{roleids,jdbcType=VARCHAR}, #{status,jdbcType=INTEGER}, 
      #{description,jdbcType=VARCHAR}, #{mc,jdbcType=VARCHAR}, #{cjsj,jdbcType=TIMESTAMP}, 
      #{xgsj,jdbcType=TIMESTAMP}, #{yhlx,jdbcType=VARCHAR}, #{updateVer,jdbcType=VARCHAR}, 
      #{yhemail,jdbcType=VARCHAR}, #{phone,jdbcType=VARCHAR}, #{mailbox,jdbcType=VARCHAR}, 
      #{ifRetailer,jdbcType=VARCHAR}, #{ifWholesaler,jdbcType=VARCHAR}, #{ifAgent,jdbcType=VARCHAR}, 
      #{ifManagement,jdbcType=VARCHAR}, #{tgOrgid,jdbcType=VARCHAR}, #{lbs,jdbcType=DOUBLE}, 
      #{yhTx,jdbcType=VARCHAR}, #{createTime,jdbcType=TIMESTAMP}, #{updateTime,jdbcType=TIMESTAMP}
      )
  </insert>
  <insert id="insertSelective" parameterType="com.chw.controller.sysUser">
    insert into sys_user
    <trim prefix="(" suffix=")" suffixOverrides=",">
      <if test="userid != null">
        userid,
      </if>
      <if test="username != null">
        username,
      </if>
      <if test="password != null">
        password,
      </if>
      <if test="organizationid != null">
        organizationid,
      </if>
      <if test="roleids != null">
        roleids,
      </if>
      <if test="status != null">
        status,
      </if>
      <if test="description != null">
        description,
      </if>
      <if test="mc != null">
        MC,
      </if>
      <if test="cjsj != null">
        CJSJ,
      </if>
      <if test="xgsj != null">
        XGSJ,
      </if>
      <if test="yhlx != null">
        YHLX,
      </if>
      <if test="updateVer != null">
        UPDATE_VER,
      </if>
      <if test="yhemail != null">
        YHEMAIL,
      </if>
      <if test="phone != null">
        phone,
      </if>
      <if test="mailbox != null">
        mailbox,
      </if>
      <if test="ifRetailer != null">
        if_retailer,
      </if>
      <if test="ifWholesaler != null">
        if_wholesaler,
      </if>
      <if test="ifAgent != null">
        if_agent,
      </if>
      <if test="ifManagement != null">
        if_management,
      </if>
      <if test="tgOrgid != null">
        tg_orgid,
      </if>
      <if test="lbs != null">
        lbs,
      </if>
      <if test="yhTx != null">
        yh_tx,
      </if>
      <if test="createTime != null">
        create_time,
      </if>
      <if test="updateTime != null">
        update_time,
      </if>
    </trim>
    <trim prefix="values (" suffix=")" suffixOverrides=",">
      <if test="userid != null">
        #{userid,jdbcType=VARCHAR},
      </if>
      <if test="username != null">
        #{username,jdbcType=VARCHAR},
      </if>
      <if test="password != null">
        #{password,jdbcType=VARCHAR},
      </if>
      <if test="organizationid != null">
        #{organizationid,jdbcType=VARCHAR},
      </if>
      <if test="roleids != null">
        #{roleids,jdbcType=VARCHAR},
      </if>
      <if test="status != null">
        #{status,jdbcType=INTEGER},
      </if>
      <if test="description != null">
        #{description,jdbcType=VARCHAR},
      </if>
      <if test="mc != null">
        #{mc,jdbcType=VARCHAR},
      </if>
      <if test="cjsj != null">
        #{cjsj,jdbcType=TIMESTAMP},
      </if>
      <if test="xgsj != null">
        #{xgsj,jdbcType=TIMESTAMP},
      </if>
      <if test="yhlx != null">
        #{yhlx,jdbcType=VARCHAR},
      </if>
      <if test="updateVer != null">
        #{updateVer,jdbcType=VARCHAR},
      </if>
      <if test="yhemail != null">
        #{yhemail,jdbcType=VARCHAR},
      </if>
      <if test="phone != null">
        #{phone,jdbcType=VARCHAR},
      </if>
      <if test="mailbox != null">
        #{mailbox,jdbcType=VARCHAR},
      </if>
      <if test="ifRetailer != null">
        #{ifRetailer,jdbcType=VARCHAR},
      </if>
      <if test="ifWholesaler != null">
        #{ifWholesaler,jdbcType=VARCHAR},
      </if>
      <if test="ifAgent != null">
        #{ifAgent,jdbcType=VARCHAR},
      </if>
      <if test="ifManagement != null">
        #{ifManagement,jdbcType=VARCHAR},
      </if>
      <if test="tgOrgid != null">
        #{tgOrgid,jdbcType=VARCHAR},
      </if>
      <if test="lbs != null">
        #{lbs,jdbcType=DOUBLE},
      </if>
      <if test="yhTx != null">
        #{yhTx,jdbcType=VARCHAR},
      </if>
      <if test="createTime != null">
        #{createTime,jdbcType=TIMESTAMP},
      </if>
      <if test="updateTime != null">
        #{updateTime,jdbcType=TIMESTAMP},
      </if>
    </trim>
  </insert>
  <update id="updateByPrimaryKeySelective" parameterType="com.chw.controller.sysUser">
    update sys_user
    <set>
      <if test="username != null">
        username = #{username,jdbcType=VARCHAR},
      </if>
      <if test="password != null">
        password = #{password,jdbcType=VARCHAR},
      </if>
      <if test="organizationid != null">
        organizationid = #{organizationid,jdbcType=VARCHAR},
      </if>
      <if test="roleids != null">
        roleids = #{roleids,jdbcType=VARCHAR},
      </if>
      <if test="status != null">
        status = #{status,jdbcType=INTEGER},
      </if>
      <if test="description != null">
        description = #{description,jdbcType=VARCHAR},
      </if>
      <if test="mc != null">
        MC = #{mc,jdbcType=VARCHAR},
      </if>
      <if test="cjsj != null">
        CJSJ = #{cjsj,jdbcType=TIMESTAMP},
      </if>
      <if test="xgsj != null">
        XGSJ = #{xgsj,jdbcType=TIMESTAMP},
      </if>
      <if test="yhlx != null">
        YHLX = #{yhlx,jdbcType=VARCHAR},
      </if>
      <if test="updateVer != null">
        UPDATE_VER = #{updateVer,jdbcType=VARCHAR},
      </if>
      <if test="yhemail != null">
        YHEMAIL = #{yhemail,jdbcType=VARCHAR},
      </if>
      <if test="phone != null">
        phone = #{phone,jdbcType=VARCHAR},
      </if>
      <if test="mailbox != null">
        mailbox = #{mailbox,jdbcType=VARCHAR},
      </if>
      <if test="ifRetailer != null">
        if_retailer = #{ifRetailer,jdbcType=VARCHAR},
      </if>
      <if test="ifWholesaler != null">
        if_wholesaler = #{ifWholesaler,jdbcType=VARCHAR},
      </if>
      <if test="ifAgent != null">
        if_agent = #{ifAgent,jdbcType=VARCHAR},
      </if>
      <if test="ifManagement != null">
        if_management = #{ifManagement,jdbcType=VARCHAR},
      </if>
      <if test="tgOrgid != null">
        tg_orgid = #{tgOrgid,jdbcType=VARCHAR},
      </if>
      <if test="lbs != null">
        lbs = #{lbs,jdbcType=DOUBLE},
      </if>
      <if test="yhTx != null">
        yh_tx = #{yhTx,jdbcType=VARCHAR},
      </if>
      <if test="createTime != null">
        create_time = #{createTime,jdbcType=TIMESTAMP},
      </if>
      <if test="updateTime != null">
        update_time = #{updateTime,jdbcType=TIMESTAMP},
      </if>
    </set>
    where userid = #{userid,jdbcType=VARCHAR}
  </update>
  <update id="updateByPrimaryKey" parameterType="com.chw.controller.sysUser">
    update sys_user
    set username = #{username,jdbcType=VARCHAR},
      password = #{password,jdbcType=VARCHAR},
      organizationid = #{organizationid,jdbcType=VARCHAR},
      roleids = #{roleids,jdbcType=VARCHAR},
      status = #{status,jdbcType=INTEGER},
      description = #{description,jdbcType=VARCHAR},
      MC = #{mc,jdbcType=VARCHAR},
      CJSJ = #{cjsj,jdbcType=TIMESTAMP},
      XGSJ = #{xgsj,jdbcType=TIMESTAMP},
      YHLX = #{yhlx,jdbcType=VARCHAR},
      UPDATE_VER = #{updateVer,jdbcType=VARCHAR},
      YHEMAIL = #{yhemail,jdbcType=VARCHAR},
      phone = #{phone,jdbcType=VARCHAR},
      mailbox = #{mailbox,jdbcType=VARCHAR},
      if_retailer = #{ifRetailer,jdbcType=VARCHAR},
      if_wholesaler = #{ifWholesaler,jdbcType=VARCHAR},
      if_agent = #{ifAgent,jdbcType=VARCHAR},
      if_management = #{ifManagement,jdbcType=VARCHAR},
      tg_orgid = #{tgOrgid,jdbcType=VARCHAR},
      lbs = #{lbs,jdbcType=DOUBLE},
      yh_tx = #{yhTx,jdbcType=VARCHAR},
      create_time = #{createTime,jdbcType=TIMESTAMP},
      update_time = #{updateTime,jdbcType=TIMESTAMP}
    where userid = #{userid,jdbcType=VARCHAR}
  </update>
</mapper>

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