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SpringBoot+Vue微人事实战---Mybatis Generator插件一键生成数据库驱动层(2)

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今天完成微人事的数据库驱动,主要使用Mybatis-generator。这个工具能根据数据库一键生成domain、dao、mapper层的代码,非常方便高效。奥力给,造它就完了。
如果还没看前文的,点此传送SpringBoot+Vue微人事实战—项目搭建(1)

1.1、添加依赖
首先在pom.xml文件中添加mabatis-generator插件,如下所示:

<plugins>
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.7</version>
                <configuration>
                    <configurationFile>
                        src/main/resources/generatorConfig.xml
                    </configurationFile>
                    <overwrite>true</overwrite>
                    <verbose>true</verbose>
                </configuration>
                <dependencies>
                    <dependency>
                        <groupId>mysql</groupId>
                        <artifactId>mysql-connector-java</artifactId>
                        <version>5.1.46</version>
                    </dependency>
                    <dependency>
                        <groupId>com.itfsw</groupId>
                        <artifactId>mybatis-generator-plugin</artifactId>
                        <version>1.3.2</version>
                    </dependency>
                    <dependency>
                        <groupId>tk.mybatis</groupId>
                        <artifactId>mapper</artifactId>
                        <version>4.1.5</version>
                    </dependency>
                </dependencies>
            </plugin>
        </plugins>

OK,接着添加Mybatis和Mysql的其他依赖:

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.20</version>
        </dependency>
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.2.13</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

耐心等待Jar包下载完成。
1.2、完成数据库配置
OK我们已经添加好了依赖,接下来去application.yml完成数据库连接的配置。

spring:
  datasource:
    druid:
      url: jdbc:mysql://localhost:3306/vhr?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC&allowPublicKeyRetrieval=true&verifyServerCertificate=false&useSSL=false
      driver-class-name: com.mysql.jdbc.Driver
      username: root
      password: root

1.3、编写generatorConfig.xml配置文件
首先引入mybatis的一些依赖

<?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">

然后使用标签开始进行配置,首先设置dao层需要的功能:

<context id="mysqlgenerator" targetRuntime="MyBatis3">
        <property name="autoDelimitKeywords" value="true"/>
        <!--可以使用``包括字段名,避免字段名与sql保留字冲突报错-->
        <property name="beginningDelimiter" value="`"/>
        <property name="endingDelimiter" value="`"/>

        <!-- 自动生成toString方法 -->
        <plugin type="org.mybatis.generator.plugins.ToStringPlugin"/>
        <!-- 自动生成equals方法和hashcode方法 -->
        <plugin type="org.mybatis.generator.plugins.EqualsHashCodePlugin"/>

        <!-- 非官方插件 https://github.com/itfsw/mybatis-generator-plugin -->
        <!-- 查询单条数据插件 -->
        <plugin type="com.itfsw.mybatis.generator.plugins.SelectOneByExamplePlugin"/>
        <!-- 查询结果选择性返回插件 -->
        <plugin type="com.itfsw.mybatis.generator.plugins.SelectSelectivePlugin"/>
        <!-- Example Criteria 增强插件 -->
        <plugin type="com.itfsw.mybatis.generator.plugins.ExampleEnhancedPlugin"/>
        <!-- 数据Model属性对应Column获取插件 -->
        <plugin type="com.itfsw.mybatis.generator.plugins.ModelColumnPlugin"/>
        <!-- 逻辑删除插件 -->
        <plugin type="com.itfsw.mybatis.generator.plugins.LogicalDeletePlugin">
            <!-- 这里配置的是全局逻辑删除列和逻辑删除值,当然在table中配置的值会覆盖该全局配置 -->
            <!-- 逻辑删除列类型只能为数字、字符串或者布尔类型 -->
            <property name="logicalDeleteColumn" value="deleted"/>
            <!-- 逻辑删除-已删除值 -->
            <property name="logicalDeleteValue" value="1"/>
            <!-- 逻辑删除-未删除值 -->
            <property name="logicalUnDeleteValue" value="0"/>
        </plugin>
        <commentGenerator>
            <property name="suppressDate" value="true"/>
            <!--<property name="suppressAllComments" value="true"/>-->
        </commentGenerator>

然后配置数据库连接信息

        <!--数据库连接信息-->
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://127.0.0.1:3306/vhr?useUnicode=true&amp;characterEncoding=UTF-8&amp;serverTimezone=UTC&amp;verifyServerCertificate=false&amp;useSSL=false"
                        userId="root"
                        password="root"/>

配置生成的文件目录

        <javaTypeResolver>
            <property name="useJSR310Types" value="true"/>
        </javaTypeResolver>
        <javaModelGenerator targetPackage="zxf.demo.domain" targetProject="src/main/java"/>
        <sqlMapGenerator targetPackage="zxf.demo.dao" targetProject="src/main/resources"/>
        <javaClientGenerator type="XMLMAPPER" targetPackage="zxf.demo.dao"
                             targetProject="src/main/java"/>

最后一步,设置数据库的表名,将数据库的每个实体表配置主键信息,特殊数据类型等,比如:

<!--表名-->
        <table tableName="adjustsalary">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>

完整的如下:

<!--表名-->
        <table tableName="adjustsalary">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>
        <table tableName="appraise">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>
        <table tableName="department">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>
        <table tableName="employee">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>
        <table tableName="employeec">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>
        <table tableName="employeetrain">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>
        <table tableName="hr">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>
        <table tableName="hr_role">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>
        <table tableName="joblevel">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>
        <table tableName="menu">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>
        <table tableName="menu_role">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>
        <table tableName="msgcontent">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>
        <table tableName="nation">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>
        <table tableName="oplog">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>
        <table tableName="politicsstatus">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>
        <table tableName="position">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>
        <table tableName="role">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>
        <table tableName="salary">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>
        <table tableName="sysmsg">
            <generatedKey column="id" sqlStatement="MySql" identity="true"/>
        </table>

1.3、最后一步
在IDEA右侧的Maven标签中找到Mybatis Generator插件:

双击生成,于是可以看到成功生成了实体类和dao方法

今天已经学了很多了,到此为止啦,下篇文章见!!
(因为疫情停更了很久,抱歉,祝大家身体健康)


转载:https://blog.csdn.net/x1825048925/article/details/104263098
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