mybatis-plus代碼生成器搭建

首先，創建一個maven項目，直接maven創建，或者選擇Spring Initializr創建一個SpringBoot項目，再把多餘的文件夾及文件刪除。我選擇的是方式二，刪完預覽：

 

添加mybatis-plus-generator依賴，以及一些其他必要依賴：

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.wl</groupId>
    <artifactId>mybatis-plus-generator</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>mybatis-plus-generator</name>
    <description>mybatis-plus自動生成代碼模塊</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.3.2</version>
        </dependency>

        <dependency>
            <groupId>org.apache.velocity</groupId>
            <artifactId>velocity-engine-core</artifactId>
            <version>2.2</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

再接下來就是創建生成器

package com.wl;

import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.config.DataSourceConfig;
import com.baomidou.mybatisplus.generator.config.GlobalConfig;
import com.baomidou.mybatisplus.generator.config.PackageConfig;
import com.baomidou.mybatisplus.generator.config.StrategyConfig;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;

/**
 * MyBatis Plus代碼自動生成類
 *
 */
public class MybatisPlusGenerator {

    public static void main(String[] args) {

        AutoGenerator autoGenerator = new AutoGenerator();

        //全局配置
        GlobalConfig gc = new GlobalConfig();
        String oPath = System.getProperty("user.dir");//得到當前項目的路徑
        gc.setOutputDir(oPath + "/src/main/java");   //生成文件輸出根目錄
        gc.setOpen(false);//生成完成後不彈出文件框
        gc.setFileOverride(true);  //文件覆蓋
        gc.setActiveRecord(false);// 不需要ActiveRecord特性的請改爲false
        gc.setEnableCache(false);// XML 二級緩存
        gc.setBaseResultMap(true);// XML ResultMap
        gc.setBaseColumnList(false);// XML columList
        gc.setAuthor("wanlin");// 作者

        // 自定義文件命名，注意 %s 會自動填充表實體屬性！
        gc.setControllerName("%sController");
        gc.setServiceName("%sService");
        gc.setServiceImplName("%sServiceImpl");
        gc.setMapperName("%sMapper");
        gc.setXmlName("%sMapper");
        autoGenerator.setGlobalConfig(gc);

        // 數據源配置
        DataSourceConfig dsc = new DataSourceConfig();
        dsc.setDbType(DbType.MYSQL);   //設置數據庫類型
        dsc.setDriverName("com.mysql.cj.jdbc.Driver");
        dsc.setUsername("root");
        dsc.setPassword("root");
        dsc.setUrl("jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC");
        autoGenerator.setDataSource(dsc);

        // 策略配置
        StrategyConfig strategy = new StrategyConfig();
        strategy.setNaming(NamingStrategy.underline_to_camel);      // 表名生成策略
        strategy.setInclude(new String[] { "tb_student" });     // 需要生成的表
        strategy.setTablePrefix("tb_"); // 表名前綴
        //strategy.setSuperServiceClass(null);
        //strategy.setSuperServiceImplClass(null);
        strategy.setSuperMapperClass(null);
        autoGenerator.setStrategy(strategy);

        // 包配置
        PackageConfig pc = new PackageConfig();
        pc.setParent("com.foo");
        pc.setController("controller");
        pc.setService("service");
        pc.setServiceImpl("service.impl");
        pc.setMapper("mapper");
        pc.setEntity("entity");
        pc.setXml("xml");
        autoGenerator.setPackageInfo(pc);

        // 執行生成
        autoGenerator.execute();
    }

}

創建一張表試一下

CREATE TABLE `tb_student` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主鍵ID',
  `name` varchar(30) DEFAULT NULL COMMENT '姓名',
  `age` int(11) DEFAULT NULL COMMENT '年齡',
  `email` varchar(50) DEFAULT NULL COMMENT '郵箱',
  PRIMARY KEY (`id`)
)

結果：代碼生成成功