flydoging 2020-05-05
1.核心配置文件: 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> <!-- mybatis-generator:generate --> <context id="atguiguTables" targetRuntime="MyBatis3"> <commentGenerator> <!-- 是否去除自动生成的注释 true:是;false:否 --> <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/ssm" userId="root" password="123456"> </jdbcConnection> <!-- 默认false,把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer,为 true时把JDBC DECIMAL 和 NUMERIC 类型解析为java.math.BigDecimal --> <javaTypeResolver> <property name="forceBigDecimals" value="false" /> </javaTypeResolver> <!-- targetProject:生成Entity类的路径 --> <javaModelGenerator targetProject=".\src\main\java" targetPackage="cn.dkp.entity"> <!-- enableSubPackages:是否让schema作为包的后缀 --> <property name="enableSubPackages" value="false" /> <!-- 从数据库返回的值被清理前后的空格 --> <property name="trimStrings" value="true" /> </javaModelGenerator> <!-- targetProject:XxxMapper.xml映射文件生成的路径 --> <sqlMapGenerator targetProject=".\src\main\java" targetPackage="cn.dkp.mapper"> <!-- enableSubPackages:是否让schema作为包的后缀 --> <property name="enableSubPackages" value="false" /> </sqlMapGenerator> <!-- targetPackage:Mapper接口生成的位置 --> <javaClientGenerator type="XMLMAPPER" targetProject=".\src\main\java" targetPackage="cn.dkp.dao"> <!-- enableSubPackages:是否让schema作为包的后缀 --> <property name="enableSubPackages" value="false" /> </javaClientGenerator> <!-- 数据库表名字和我们的entity类对应的映射指定 --> <table tableName="t_admin" domainObjectName="Admin" /> </context> </generatorConfiguration>
2. 使用maven 所需要导入的pom坐标。=======重点来了 “总共三个坐标”
1.依赖MyBatis核心包
2.逆向工程的核心依赖
<!-- 1.依赖MyBatis核心包 --> <dependencies> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.2.8</version> </dependency> <!-- 2.逆向工程的核心依赖 --> <dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-core</artifactId> <version>1.3.0</version> </dependency> </dependencies>
3. 数据库连接 (放的位置在插件之内中)
<build> <plugins> <!-- 具体插件,逆向工程的操作是以构建过程中插件形式出现的 --> <plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.0</version> <!-- 插件的依赖 --> <dependencies> <!--3.数据库连接--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.42</version> </dependency> </dependencies> </plugin> </plugins> </build>
4.执行命令生成代码 双击即可