在pom.xml中配置
<dependencies>
<!--mybatis-->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.1</version>
</dependency>
<!--mapper-->
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper-spring-boot-starter</artifactId>
<version>1.2.4</version>
</dependency>
<!--pagehelper-->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.2.3</version>
</dependency>
<!-- mapper生成依赖 -->
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.2</version>
<scope>compile</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.34</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.2</version>
<configuration>
<configurationFile>src/main/resources/generator/generatorConfig.xml</configurationFile>
<overwrite>true</overwrite>
<verbose>true</verbose>
</configuration>
<dependencies>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.34</version>
</dependency>
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper-generator</artifactId>
<version>1.0.0</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
以上配置包含以下内容,需要在相应的位置创建generatorConfig.xml
generatorConfig.xml内容:
<?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>
<!-- 引入配置文件 -->
<properties resource="generator/db.properties"/>
<!--classPathEntry:数据库的JDBC驱动,换成你自己的驱动位置 可选 -->
<!--<classPathEntry location="D:generator_mybatismysql-connector-java-5.1.24-bin.jar" /> -->
<context id="Mysql" targetRuntime="MyBatis3Simple" defaultModelType="flat"><!--defaultModelType="flat" 大数据字段,不分表 -->
<!-- 自动识别数据库关键字,默认false,如果设置为true,根据SqlReservedWords中定义的关键字列表;
一般保留默认值,遇到数据库关键字(Java关键字),使用columnOverride覆盖 -->
<property name="autoDelimitKeywords" value="true"/>
<!-- 生成的Java文件的编码 -->
<property name="javaFileEncoding" value="utf-8"/>
<!-- beginningDelimiter和endingDelimiter:指明数据库的用于标记数据库对象名的符号,比如ORACLE就是双引号,MYSQL默认是`反引号; -->
<property name="beginningDelimiter" value="`"/>
<property name="endingDelimiter" value="`"/>
<!-- 格式化java代码 -->
<property name="javaFormatter" value="org.mybatis.generator.api.dom.DefaultJavaFormatter"/>
<!-- 格式化XML代码 -->
<property name="xmlFormatter" value="org.mybatis.generator.api.dom.DefaultXmlFormatter"/>
<plugin type="org.mybatis.generator.plugins.SerializablePlugin"/>
<plugin type="org.mybatis.generator.plugins.ToStringPlugin"/>
<!--baseMap所在位置-->
<plugin type="tk.mybatis.mapper.generator.MapperPlugin">
<property name="mappers" value="com.pzg.code.commons.utils.MyMapper"/>
</plugin>
<!-- 注释 -->
<commentGenerator>
<property name="suppressAllComments" value="false"/><!-- 是否取消注释 -->
<property name="suppressDate" value="true"/> <!-- 是否生成注释代时间戳-->
</commentGenerator>
<!-- jdbc连接 -->
<jdbcConnection driverClass="${spring.datasource.driver-class-name}"
connectionURL="${spring.datasource.url}"
userId="${spring.datasource.username}"
password="${spring.datasource.password}">
</jdbcConnection>
<!-- 类型转换 -->
<javaTypeResolver>
<!-- 是否使用bigDecimal, false可自动转化以下类型(Long, Integer, Short, etc.) -->
<property name="forceBigDecimals" value="false"/>
</javaTypeResolver>
<!-- 生成实体 -->
<javaModelGenerator targetPackage="com.pzg.code.one.entity"
targetProject="src/main/java">
<property name="enableSubPackages" value="false"/>
<property name="trimStrings" value="true"/>
</javaModelGenerator>
<!-- 生成xml文件 -->
<sqlMapGenerator targetPackage="mapper"
targetProject="src/main/resources">
<property name="enableSubPackages" value="false"/>
</sqlMapGenerator>
<!-- 生成dao接口 -->
<javaClientGenerator targetPackage="com.pzg.code.one.mapper"
targetProject="src/main/java"
type="XMLMAPPER">
<property name="enableSubPackages" value="false"/>
</javaClientGenerator>
<!-- tableName表示要匹配的数据库表,domainObjectName表示实体类名称-->
<table tableName="user"
domainObjectName="User"
enableCountByExample="true"
enableUpdateByExample="true"
enableDeleteByExample="true"
enableSelectByExample="true"
selectByExampleQueryId="true">
<property name="useActualColumnNames" value="false"/>
<!-- 数据库表主键 -->
<generatedKey column="id" sqlStatement="Mysql" identity="true"/>
</table>
</context>
</generatorConfiguration>
generatorConfig.xml内容中的数据库连接是引用的配置文件
引用的db.properties文件内容如下
数据库连接也可以无需引用,直接配置,如下图
generatorConfig.xml中的baseMap
可在相应的位置创建MyMapper.java,如下
最后调出右侧maven,如下,双击蓝色阴影部分,自动生成相关代码
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