使用mybatis-plus-gennretor代码生成器生成代码

1导入需要的jar包

 <dependencies>
        <!-- mp依赖   mybaits-plus 会自动维护mybaits  jar包 所以不用加入了 防止版本冲突 -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus</artifactId>
            <version>2.3</version>
        </dependency>
        <!-- junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
        <!-- log4j -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <!-- c3p0 -->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.2</version>
        </dependency>
        <!-- mysql -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.37</version>
        </dependency>
        <!-- spring -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>4.3.10.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>4.3.10.RELEASE</version>
        </dependency>

        <!-- Apache velocity -->
        <dependency>
            <groupId>org.apache.velocity</groupId>
            <artifactId>velocity-engine-core</artifactId>
            <version>2.0</version>
        </dependency>

        <!-- sfl4j -->
        <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>
    </dependencies>

2 配置applicationContext.xml 

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">
    <!-- 数据源 -->
    <context:property-placeholder location="classpath:db.properties"/>
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}"></property>
        <property name="jdbcUrl" value="${jdbc.url}"></property>
        <property name="user" value="${jdbc.username}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>

    <!-- 事务管理器 事务管理器 -->
    <bean id="dataSourceTransactionManager"
          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!-- 基于注解的事务管理 基于注解的事务管理 基于注解的事务管理 基于注解的事务管理 -->
    <tx:annotation-driven transaction-manager="dataSourceTransactionManager"/>
    <!-- 配置 SqlSessionFactoryBean -->
    <!--
        mybatis提供的：org.mybatis.spring.SqlSessionFactoryBean
        改成mybatis-plus提供的 ：com.baomidou.mybatisplus.spring.MybatisSqlSessionFactoryBean
    -->
    <bean id="sqlSessionFactoryBean" class="com.baomidou.mybatisplus.spring.MybatisSqlSessionFactoryBean">
        <!-- 数据源 -->
        <property name="dataSource" ref="dataSource"></property>
        <property name="configLocation" value="classpath:mybatis-config.xml"></property>
        <!-- 别名处理 别名处理 -->
        <property name="typeAliasesPackage" value="com.shi.entity"></property>

        <!--注入mybaits的全局策略配置-->
        <property name="globalConfig" ref="globalConfiguration"></property>
    </bean>
    <!-- 配置 mybatis 扫描 mapper接口的路径 接口的路径 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.shi.dao"></property>
    </bean>

    <!--定义全局的mybatisPlus的全局策略配置-->
    <bean id="globalConfiguration" class="com.baomidou.mybatisplus.entity.GlobalConfiguration">
        <!--驼峰命名法：在2.3版本之后 dbColumnUnderline 默认就是true-->
        <property name="dbColumnUnderline" value="true"></property>
        <!--全局主键策略  0：表示自增主键 -->
        <property name="idType" value="0"></property>

    </bean>
</beans>

3 数据库的配置

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://192.168.69.11:3306/shihaifeng
jdbc.username=用户名
jdbc.password=密码

4 生成代码

package com.shi.test;

import com.baomidou.mybatisplus.enums.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.DbType;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
import org.junit.Test;

/**
 * @author shfeng
 * @create 2019-07-18 16:59
 * 我的代码自动生成器
 */

public class MyGeneratorTest {

    @Test
    public void myGenerator(){
        //1 全局配置
        GlobalConfig globalConfig = new GlobalConfig();
        globalConfig.setActiveRecord(false) //是否支持AR模式
                    .setAuthor("shiye")    //作者
                    .setOutputDir("D:\\project\\shiTest\\shi_Mybatis_Plus\\src\\main\\java")    //设置生成路径
                    .setFileOverride(true)  //文件覆盖
                    .setIdType(IdType.AUTO) //主键策略 自增
                    .setServiceName("%sService")    //设置生成的servic接口的名字首字目去除I
                    .setBaseResultMap(true)     //生成sql mapper映射文件
                    .setBaseColumnList(true);

        //2 数据库配置
        DataSourceConfig dataSourceConfig = new DataSourceConfig();
        dataSourceConfig.setDbType(DbType.MYSQL)    //设置数据库类型
                        .setDriverName("com.mysql.jdbc.Driver")      //设置数据驱动
                        .setUrl("jdbc:mysql://192.168.69.11:3306/shihaifeng")         //设置数据库url
                        .setUsername("")    //设置用户名
                        .setPassword("");    //设置密码

        //3 策略配置
        StrategyConfig strategyConfig = new StrategyConfig();
        strategyConfig.setCapitalMode(true) //全局大写命名
                    .setDbColumnUnderline(true) //指定表名字段名是否使用下划线
                    .setNaming(NamingStrategy.underline_to_camel)   //数据库表映射到实体的命名方法：驼峰命名法
                    .setTablePrefix("") //表的前缀
                    .setInclude("machine_item");    //需要生成的表

        //4 包名策略配置
        PackageConfig packageConfig = new PackageConfig();
        packageConfig.setParent("com.shi")      //全局父包
                    .setController("controller")
                    .setService("service")
                    .setServiceImpl("service.impl")
                    .setMapper("dao")    //dao接口
                    .setXml("dao")       //mapper映射文件
                    .setEntity("entity");

        //5 整合配置
        AutoGenerator autoGenerator = new AutoGenerator();
        autoGenerator.setGlobalConfig(globalConfig)
                    .setDataSource(dataSourceConfig)
                    .setStrategy(strategyConfig)
                    .setPackageInfo(packageConfig);

        //6 执行
        autoGenerator.execute();

    }

}