1.新建个Maven工程
2.pom.xml中添加插件(注意修改注释处)
<build>
<plugins>
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.7</version>
<configuration>
<!--配置文件的位置-->
<configurationFile>src/main/resources/mybatis-generator.xml</configurationFile>
<verbose>true</verbose>
<overwrite>true</overwrite>
</configuration>
<executions>
<execution>
<id>Generate MyBatis Artifacts</id>
<goals>
<goal>generate</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.7</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
(注意修改注释处)
<?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>
<!--mysql 连接数据库jar 这里选择自己本地位置-->
<classPathEntry location="C:\Users\Administrator\.m2\repository\mysql\mysql-connector-java\5.1.44\mysql-connector-java-5.1.44.jar" />
<context id="testTables" targetRuntime="MyBatis3">
<commentGenerator>
<property name="suppressAllComments" value="true" />
</commentGenerator>
<!--数据库连接的信息:驱动类、连接地址、用户名、密码 -->
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/db1?serverTimezone=UTC" userId="root" password="root">
</jdbcConnection>
<javaTypeResolver>
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>
<!-- targetProject:生成PO类的位置 -->
<javaModelGenerator targetPackage="com.pojo" targetProject="src/main/java">
<property name="enableSubPackages" value="false" />
<property name="trimStrings" value="true" />
</javaModelGenerator>
<!-- targetProject:生成Mapper.xml的位置 -->
<sqlMapGenerator targetPackage="com.mapper" targetProject="src/main/java">
<property name="enableSubPackages" value="false" />
</sqlMapGenerator>
<!-- targetPackage:mapper接口生成的位置 -->
<javaClientGenerator type="XMLMAPPER" targetPackage="com.mapper" targetProject="src/main/java">
<property name="enableSubPackages" value="false" />
</javaClientGenerator>
<!-- 指定数据库表 如果多个表指定多个table-->
<table schema="" tableName="users"></table>
</context>
</generatorConfiguration>
还有些可能需要更改的配置:
suppressAllComments:是否去除自动生成的注释true:是;false:否
forceBigDecimals:默认false,把DECIMAL和NUMERIC类型解析为Integer;为true时,把DECIMAL和NUMERIC类型解析为BigDecimal
trimStrings:去除值的前后空格
4.右键项目选择Run As–>Maven install
可能会出现BUILD FAILURE,但没有关系因为文件已经生成出来了。