licwwqy 2020-02-18
在本地的数据库建立表,然后利用 Mybatis 使用 maven 命令生成逆向工程。
maven 建立项目,pom.xml 文件配置如下:
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>top.chenbin113.crowd.funding</groupId> <artifactId>crowdfunding-reverse</artifactId> <version>1.0-SNAPSHOT</version> <packaging>jar</packaging> <!-- 依赖MyBatis核心包 --> <dependencies> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.2.8</version> </dependency> </dependencies> <!-- 控制Maven在构建过程中相关配置 --> <build> <!-- 构建过程中用到的插件 --> <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> <!-- 逆向工程的核心依赖 --> <dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-core</artifactId> <version>1.3.2</version> </dependency> <!-- 数据库连接池 --> <dependency> <groupId>com.mchange</groupId> <artifactId>c3p0</artifactId> <version>0.9.2</version> </dependency> <!-- MySQL驱动 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.8</version> </dependency> </dependencies> </plugin> </plugins> </build> </project>
resources 目录下建立 generatorConfig.xml 文件
<?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"> <!--执行maven逆向工程的命令:mybatis-generator:generate--> <generatorConfiguration> <context id="chenbin113Tables" 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/crowdfunding" userId="root" password="123qaz"> </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="top.chenbin113.crowd.funding.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="top.chenbin113.crowd.funding.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="top.chenbin113.crowd.funding.mapper"> <!-- 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>
点击 IDEA 的菜单栏 Run -> Edit Configurations,点击添加按钮如下图:
按照 maven 命令 mybatis-generator:generate
如下填写:
按照下图执行即可生成逆向工程