命令行的方式使用mybatis逆向工程

Posted 2020-10-06 烟尘

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:

 

和Hibernate逆向生成一样，这里也需要一个配置文件：

generatorConfig.xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <!DOCTYPE generatorConfiguration
 3   PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
 4   "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
 5 <generatorConfiguration>
 6     <!--数据库驱动-->
 7     <classPathEntry    location="mysql-connector-java-5.0.8-bin.jar"/>
 8     <context id="DB2Tables"    targetRuntime="MyBatis3">
 9         <commentGenerator>
10             <property name="suppressDate" value="true"/>
11             <property name="suppressAllComments" value="true"/>
12         </commentGenerator>
13         <!--数据库链接地址账号密码-->
14         <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost/mymessages" userId="root" password="root">
15         </jdbcConnection>
16         <javaTypeResolver>
17             <property name="forceBigDecimals" value="false"/>
18         </javaTypeResolver>
19         <!--生成Model类存放位置-->
20         <javaModelGenerator targetPackage="lcw.model" targetProject="src">
21             <property name="enableSubPackages" value="true"/>
22             <property name="trimStrings" value="true"/>
23         </javaModelGenerator>
24         <!--生成映射文件存放位置-->
25         <sqlMapGenerator targetPackage="lcw.mapping" targetProject="src">
26             <property name="enableSubPackages" value="true"/>
27         </sqlMapGenerator>
28         <!--生成Dao类存放位置-->
29         <javaClientGenerator type="XMLMAPPER" targetPackage="lcw.dao" targetProject="src">
30             <property name="enableSubPackages" value="true"/>
31         </javaClientGenerator>
32         <!--生成对应表及类名-->
33         <table tableName="message" domainObjectName="Messgae" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
34     </context>
35 </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）。

 

生成语句文件：

java -jar mybatis-generator-core-1.3.2.jar -configfile generatorConfig.xml -overwrite

 

 

2、使用方法

在该目录按住Shift键，右键鼠标选择"在此处打开命令窗口"，复制粘贴生成语句的文件代码即可。

 

看下效果图：

 

 

生成相关代码：

Message.java

 1 package lcw.model;
 2 
 3 public class Messgae {
 4     private Integer id;
 5 
 6     private String title;
 7 
 8     private String describe;
 9 
10     private String content;
11 
12     public Integer getId() {
13         return id;
14     }
15 
16     public void setId(Integer id) {
17         this.id = id;
18     }
19 
20     public String getTitle() {
21         return title;
22     }
23 
24     public void setTitle(String title) {
25         this.title = title == null ? null : title.trim();
26     }
27 
28     public String getDescribe() {
29         return describe;
30     }
31 
32     public void setDescribe(String describe) {
33         this.describe = describe == null ? null : describe.trim();
34     }
35 
36     public String getContent() {
37         return content;
38     }
39 
40     public void setContent(String content) {
41         this.content = content == null ? null : content.trim();
42     }
43 }

MessgaeMapper.xml

 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="lcw.dao.MessgaeMapper" >
 4   <resultMap id="BaseResultMap" type="lcw.model.Messgae" >
 5     <id column="id" property="id" jdbcType="INTEGER" />
 6     <result column="title" property="title" jdbcType="VARCHAR" />
 7     <result column="describe" property="describe" jdbcType="VARCHAR" />
 8     <result column="content" property="content" jdbcType="VARCHAR" />
 9   </resultMap>
10   <sql id="Base_Column_List" >
11     id, title, describe, content
12   </sql>
13   <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
14     select 
15     <include refid="Base_Column_List" />
16     from message
17     where id = #{id,jdbcType=INTEGER}
18   </select>
19   <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
20     delete from message
21     where id = #{id,jdbcType=INTEGER}
22   </delete>
23   <insert id="insert" parameterType="lcw.model.Messgae" >
24     insert into message (id, title, describe, 
25       content)
26     values (#{id,jdbcType=INTEGER}, #{title,jdbcType=VARCHAR}, #{describe,jdbcType=VARCHAR}, 
27       #{content,jdbcType=VARCHAR})
28   </insert>
29   <insert id="insertSelective" parameterType="lcw.model.Messgae" >
30     insert into message
31     <trim prefix="(" suffix=")" suffixOverrides="," >
32       <if test="id != null" >
33         id,
34       </if>
35       <if test="title != null" >
36         title,
37       </if>
38       <if test="describe != null" >
39         describe,
40       </if>
41       <if test="content != null" >
42         content,
43       </if>
44     </trim>
45     <trim prefix="values (" suffix=")" suffixOverrides="," >
46       <if test="id != null" >
47         #{id,jdbcType=INTEGER},
48       </if>
49       <if test="title != null" >
50         #{title,jdbcType=VARCHAR},
51       </if>
52       <if test="describe != null" >
53         #{describe,jdbcType=VARCHAR},
54       </if>
55       <if test="content != null" >
56         #{content,jdbcType=VARCHAR},
57       </if>
58     </trim>
59   </insert>
60   <update id="updateByPrimaryKeySelective" parameterType="lcw.model.Messgae" >
61     update message
62     <set >
63       <if test="title != null" >
64         title = #{title,jdbcType=VARCHAR},
65       </if>
66       <if test="describe != null" >
67         describe = #{describe,jdbcType=VARCHAR},
68       </if>
69       <if test="content != null" >
70         content = #{content,jdbcType=VARCHAR},
71       </if>
72     </set>
73     where id = #{id,jdbcType=INTEGER}
74   </update>
75   <update id="updateByPrimaryKey" parameterType="lcw.model.Messgae" >
76     update message
77     set title = #{title,jdbcType=VARCHAR},
78       describe = #{describe,jdbcType=VARCHAR},
79       content = #{content,jdbcType=VARCHAR}
80     where id = #{id,jdbcType=INTEGER}
81   </update>
82 </mapper>

MessgaeMapper.java

 1 package lcw.dao;
 2 
 3 import lcw.model.Messgae;
 4 
 5 public interface MessgaeMapper {
 6     int deleteByPrimaryKey(Integer id);
 7 
 8     int insert(Messgae record);
 9 
10     int insertSelective(Messgae record);
11 
12     Messgae selectByPrimaryKey(Integer id);
13 
14     int updateByPrimaryKeySelective(Messgae record);
15 
16     int updateByPrimaryKey(Messgae record);
17 }