SpringBoot整合MyBatis Plus代码生成器之代码分析

SpringBoot整合MyBatis Plus代码生成器之代码分析

代码生成类详解（每行都有注释）

package com.sxgxo.auto;

import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.annotation.IdType;
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.DateType;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;

/**
 * @author 颂梓枫
 * @since JDK 1.8
 * ClassName: TestAuto
 * date: 2020/12/15 12:39
 * Description:
 *     //1.全局配置
 *     //2.数据源配置
 *     //3.数据库表策略配置
 *     //4.包名策略配置
 *     //5.整合配置
 */
public class TestAuto {
    public static void main(String[] args) {
        //1.全局配置
        GlobalConfig gc = new GlobalConfig();
        String propertyPath = System.getProperty("user.dir");
        gc//.setActiveRecord(true) //开启AR模式。生成model
          .setAuthor("颂梓枫")  // 作者
          .setOutputDir(propertyPath+"/src/main/java") //生成文件所在的目录，user.dir表示当前目录
          .setFileOverride(true) //文件覆盖,true表示第二次生成的文件会把第一次的覆盖掉
          .setIdType(IdType.AUTO) //主键策略,自增
          .setDateType(DateType.ONLY_DATE)//日期类型
          .setServiceName("%sService") //IEmpService 意思是把I去掉
          .setOpen(false)      //生成的文件不打开资源管理器。(默认设置是打开的)
          .setBaseResultMap(true) //生成mapper.xml文件中的BaseResultMap
          .setBaseColumnList(true);//生成SQL片段 基本查询列
        //2.数据源配置
        DataSourceConfig dsc = new DataSourceConfig();
        dsc.setDbType(DbType.MYSQL)//数据库类型
           .setDriverName("com.mysql.cj.jdbc.Driver")
           .setUrl("jdbc:mysql://localhost:3306/test?serverTimezone=UTC")
           .setUsername("root")
           .setPassword("root");
        //3.数据库表策略配置
        StrategyConfig sc = new StrategyConfig();
        sc.setCapitalMode(true)//全局大写命名
          .setNaming(NamingStrategy.underline_to_camel)//数据库表映射到实体类的命名策略,开启驼峰命名
          .setTablePrefix("tb_")//不生成表名前缀
          .setInclude("tb"+"_\\w*")//想生成的那张表     "tb"+"_\\w*"可以生成数据库的所有表
          //.setEntityLombokModel(true)
          .setEntityTableFieldAnnotationEnable(true)
          .setLogicDeleteFieldName("is_deleted") //逻辑删除字段名
          .setEntityBooleanColumnRemoveIsPrefix(true)//去除逻辑删除字段名的前缀 _is
          .setEnableSqlFilter(false);  //mp3.4.1版本,需要设置这个条件,才可以使用生成所有表的功能

        //4.包名策略配置
        PackageConfig pc= new PackageConfig();
        pc.setParent("com.sxgxo.auto")
          .setMapper("dao")
          .setController("controller")
          .setEntity("model")
          .setService("service")
          .setXml("mapper");
        //5.整合配置
        AutoGenerator ag = new AutoGenerator();
        ag.setGlobalConfig(gc)
          .setDataSource(dsc)
          .setStrategy(sc)
          .setPackageInfo(pc);
        //6.执行
        ag.execute();
    }
}

pom文件

<?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>2.4.1</version>
        <relativePath/>
        <!-- lookup parent from repository -->
    </parent>
    <groupId>com.sxgxo</groupId>
    <artifactId>auto</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>auto</name>
    <description>Demo project for Spring Boot</description>

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

    <dependencies>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.10</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.4.1</version>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.4.1</version>
        </dependency>
        <dependency>
            <groupId>org.apache.velocity</groupId>
            <artifactId>velocity-engine-core</artifactId>
            <version>2.2</version>
        </dependency>
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>2.3.30</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.7</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.7</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>