[Java知识库]6. MyBatisPlus--代码生成器 （3.5.1）

一、创建项目

大概长这个样子！

1. 配置文件pom.xml

1. guli_test的pom.xml

<?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>
    <packaging>pom</packaging>
    <modules>
        <module>service</module>
        <module>service/service_edu</module>
    </modules>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.6.7</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <groupId>com.znb</groupId>
    <artifactId>guli_test</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>guli_test</name>
    <description>guli_test</description>

    <properties>
        <java.version>11</java.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <!--spring cloud-->
<!--            <dependency>-->
<!--                <groupId>org.springframework.cloud</groupId>-->
<!--                <artifactId>spring-cloud-dependencies</artifactId>-->
<!--                <version>Hoxton.RELEASE</version>-->
<!--                <type>pom</type>-->
<!--                <scope>import</scope>-->
<!--            </dependency>-->
<!--            <dependency>-->
<!--                <groupId>org.springframework.cloud</groupId>-->
<!--                <artifactId>spring-cloud-alibaba-dependencies</artifactId>-->
<!--                <version></version>-->
<!--                <type>pom</type>-->
<!--                <scope>import</scope>-->
<!--            </dependency>-->

            <!--  mybatis-plus 持久层  -->
            <dependency>
                <groupId>com.baomidou</groupId>
                <artifactId>mybatis-plus-boot-starter</artifactId>
                <version>3.5.1</version>
            </dependency>
            <!--   velocity 模板引擎, Mybatis Plus 代码生成器需要   -->
            <dependency>
                <groupId>org.apache.velocity</groupId>
                <artifactId>velocity-engine-core</artifactId>
                <version>2.3</version>
            </dependency>

            <!-- swagger -->
            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-swagger2</artifactId>
                <version>3.0.0</version>
            </dependency>
            <!-- swagger ui -->
            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-swagger-ui</artifactId>
                <version>3.0.0</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

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

</project>

2. service的pom.xml

<?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">
    <parent>
        <artifactId>guli_test</artifactId>
        <groupId>com.znb</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>service</artifactId>

    <packaging>pom</packaging>
    <modules>
        <module>service_edu</module>
    </modules>

    <dependencies>
        <dependency>
            <groupId>com.znb</groupId>
            <artifactId>service</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- mybatis-plus -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
        </dependency>
        <!-- mysql -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.22</version>
        </dependency>

        <!--  velocity 模板引擎, Mybatis Plus 代码生成器需要  -->
        <dependency>
            <groupId>org.apache.velocity</groupId>
            <artifactId>velocity-engine-core</artifactId>
        </dependency>
        <!-- swagger -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
        </dependency>
        <!-- lombok用来简化实体类：需要安装lombok插件 -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
    </dependencies>
</project>

3. service_edu的pom.xml

<?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">
    <parent>
        <artifactId>service</artifactId>
        <groupId>com.znb</groupId>
        <version>0.0.1-SNAPSHOT</version>
        <relativePath>../../pom.xml</relativePath>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>service_edu</artifactId>

    <dependencies>
        <!--逆向工程-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.5.1</version>
        </dependency>
        <!--逆向工程需要模板引擎-->
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>2.3.28</version>
        </dependency>
    </dependencies>

    <properties>
        <maven.compiler.source>15</maven.compiler.source>
        <maven.compiler.target>15</maven.compiler.target>
    </properties>

</project>

二、实体类

CodeGenerator.java

package com.znb.demo;

import com.baomidou.mybatisplus.generator.FastAutoGenerator;
import com.baomidou.mybatisplus.generator.config.OutputFile;
import com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine;

import java.util.Collections;

public class CodeGenerator {
    public static void main(String[] args) {
        FastAutoGenerator.create("jdbc:mysql://localhost:3306/guli?serverTimezone=GMT%2B8", "root", "2550")
                .globalConfig(builder -> {
                    builder.author("znb") // 设置作者
                            .enableSwagger() // 开启 swagger 模式
                            .fileOverride() // 覆盖已生成文件
                            .outputDir("E:\\大三\\项目\\guli_test\\service\\service_edu\\src\\main\\java"); // 指定输出目录
                })
                .packageConfig(builder -> {
                    builder.parent("com.znb") // 设置父包名
                            .moduleName("eduservice") // 设置父包模块名
                            .controller("controller")
                            .entity("entity")
                            .service("service")
                            .mapper("mapper")
                            .pathInfo(Collections.singletonMap(OutputFile.mapperXml, "E:\\大三\\项目\\guli_test\\service\\service_edu\\src\\main\\resources"));// 设置mapperXml生成路径
                })
                .strategyConfig(builder -> {
                    builder.addInclude("edu_teacher"); // 设置需要生成的表名

                })
                .templateEngine(new FreemarkerTemplateEngine()) // 使用Freemarker引擎模板，默认的是Velocity引擎模板
                .execute();
    }
}

三、成功截图

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