MyBatis Plus 2.3 个人笔记-01-代码生成器

• sb_mybatis_puls2.3

<?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>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.3.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.huarui</groupId>
    <artifactId>sb_mybatis_puls2.3</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>sb_mybatis_puls2.3</name>
    <description>Demo project for Spring Boot</description>

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

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

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

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

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

        <!--mybatis plus 2.3 start-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>2.3</version>
        </dependency>
        <!--mybatis plus 2.3 end-->

        <!-- freemarker 代码生成器模板 start-->
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
        </dependency>
        <!-- freemarker 代码生成器模板 end-->

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </dependency>

    </dependencies>

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

</project>

pom.xml

server:
  port: 8080

#mysql
spring:
  datasource:
    url: jdbc:mysql://39.108.85.204:3306/mybatis_plus?useUnicode=true&characterEncoding=utf8
    username: youxiu326
    password: zz123456.ZZ
    driver-class-name: com.mysql.cj.jdbc.Driver

mybatis-plus:
  # 如果是放在src/main/java目录下 classpath:/com/yourpackage/*/mapper/*Mapper.xml
  # 如果是放在resource目录 classpath:/mapper/*Mapper.xml
  mapper-locations: classpath:/com/huarui/mybatisplus/mapper/*Mapper.xml
  #实体扫描，多个package用逗号或者分号分隔
  typeAliasesPackage: com.huarui.mybatisplus.entity
  global-config:
    #主键类型  0:"数据库ID自增", 1:"用户输入ID",2:"全局唯一ID (数字类型唯一ID)", 3:"全局唯一ID UUID";
    id-type: 2
    #字段策略 0:"忽略判断",1:"非 NULL 判断"),2:"非空判断"
    field-strategy: 2
    #驼峰下划线转换
    db-column-underline: true
    #mp2.3+ 全局表前缀 mp_
    table-prefix: tal_
    #刷新mapper 调试神器
    #refresh-mapper: true
    #数据库大写下划线转换
    capital-mode: true
    # Sequence序列接口实现类配置
    key-generator: com.baomidou.mybatisplus.incrementer.OracleKeyGenerator
    #逻辑删除配置（下面3个配置）
    logic-delete-value: -1
    logic-not-delete-value: 1
    #注入自定义SQL
    sql-injector: com.huarui.mybatisplus.configuration.MySqlInjector
    #自定义填充策略接口实现
    meta-object-handler: com.huarui.mybatisplus.configuration.MyMetaObjectHandler
  configuration:
    #配置返回数据库(column下划线命名&&返回java实体是驼峰命名)，自动匹配无需as（没开启这个，SQL需要写as： select user_id as userId）
    map-underscore-to-camel-case: true
    cache-enabled: false
    #配置JdbcTypeForNull, oracle数据库必须配置
    jdbc-type-for-null: 'null'
    # 配置slq打印日志
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl

application.yml

/*
Navicat MySQL Data Transfer

Source Server         : 阿里云
Source Server Version : 50724
Source Host           : youxiu326.xin:3306
Source Database       : mybatis_plus

Target Server Type    : MYSQL
Target Server Version : 50724
File Encoding         : 65001

Date: 2019-02-17 15:59:52
*/

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for tbl_employee
-- ----------------------------
DROP TABLE IF EXISTS `tbl_employee`;
CREATE TABLE `tbl_employee` (
  `id` varchar(20) NOT NULL,
  `last_name` varchar(50) DEFAULT NULL,
  `email` varchar(50) DEFAULT NULL,
  `gender` char(1) DEFAULT NULL,
  `age` int(11) DEFAULT NULL,
  `version` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of tbl_employee
-- ----------------------------
INSERT INTO `tbl_employee` VALUES ('1', '李老师', 'youxiu326@163.com', '1', '35', '1');
INSERT INTO `tbl_employee` VALUES ('1096995791036706818', 'MP', 'mp@atguigu.com', null, null, '1');
INSERT INTO `tbl_employee` VALUES ('1096998099921383425', '宋老师', 'sls@atguigu.com', '1', '35', '1');
INSERT INTO `tbl_employee` VALUES ('1096999885201649665', '玛利亚老师', 'mly@sina.com', '0', '22', null);
INSERT INTO `tbl_employee` VALUES ('1097000111899598849', '玛利亚老师', 'mly@sina.com', '0', '22', null);
INSERT INTO `tbl_employee` VALUES ('2', 'Jerry', 'jerry@atguigu.com', '0', '25', '1');
INSERT INTO `tbl_employee` VALUES ('3', 'TomAA', 'tomAA@sina.com', '1', '22', '3');
INSERT INTO `tbl_employee` VALUES ('4', '苍老师', 'cls@sina.com', '0', '35', '1');

-- ----------------------------
-- Table structure for tbl_user
-- ----------------------------
DROP TABLE IF EXISTS `tbl_user`;
CREATE TABLE `tbl_user` (
  `id` varchar(20) NOT NULL,
  `name` varchar(50) DEFAULT NULL,
  `email` varchar(50) DEFAULT NULL,
  `age` int(11) DEFAULT NULL,
  `deleteFlag` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of tbl_user
-- ----------------------------
INSERT INTO `tbl_user` VALUES ('1', '小日', 'aaaaaa@.qq.com', '28', '1');
INSERT INTO `tbl_user` VALUES ('2', '小日2', 'aaaaaa@.qq.com', '22', '1');
INSERT INTO `tbl_user` VALUES ('3', '小日3', 'abbbaa@.qq.com', '22', '-1');
INSERT INTO `tbl_user` VALUES ('4', 'youxiu326', 'niubi@.qq.com', '22', null);

mybatis_plus.sql

/**
 *
 * 代码生成器 2.3版
 *
 * Created by youxiu326 on 2019/2/17.
 */
public class MpGenerator {

    public static void main(String[] args) {
        //1. 全局配置
        GlobalConfig config = new GlobalConfig();
        config.setActiveRecord(true) // 是否支持AR模式
                .setAuthor("youxiu326@163.com") // 作者
                .setOutputDir("D:\\sortware\\IDEA\\package\\sb_mybatis_puls2.3\\src\\main\\java") // 生成路径
                .setFileOverride(true)  // 文件覆盖
                .setEnableCache(false)// XML 二级缓存
                .setActiveRecord(true)// 不需要ActiveRecord特性的请改为false
                .setIdType(IdType.ID_WORKER) // 主键策略 内容为空自动填充（默认配置）
                .setServiceName("%sService")  // 设置生成的service接口的名字的首字母是否为I  (%s 会自动填充表实体属性)
                // IEmployeeService
                .setBaseResultMap(true) //是否生成mapper result
                .setBaseColumnList(true); //是否生成mapper  查询列

        //2. 数据源配置
        DataSourceConfig dsConfig  = new DataSourceConfig();
        dsConfig.setDbType(DbType.MYSQL)  // 设置数据库类型
                .setDriverName("com.mysql.jdbc.Driver")
                .setUrl("jdbc:mysql://39.108.85.204:3306/mybatis_plus?useUnicode=true&characterEncoding=utf8")
                .setUsername("youxiu326")
                .setPassword("zz123456.ZZ");

        //3. 策略配置
        StrategyConfig stConfig = new StrategyConfig();
        stConfig.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策略
                .setTablePrefix("tbl_")
                .setInclude(new String[] { "tbl_user"});  // 生成的表

        //4. 包名策略配置
        PackageConfig pkConfig = new PackageConfig();
        pkConfig.setParent("com.huarui.mybatisplus")
                .setMapper("mapper")
                .setService("service")
                .setController("controller")
                .setEntity("entity")
                .setXml("mapper");

        //5. 整合配置
        AutoGenerator ag = new AutoGenerator();

        ag.setTemplateEngine(new FreemarkerTemplateEngine())
                .setGlobalConfig(config)
                .setDataSource(dsConfig)
                .setStrategy(stConfig)
                .setPackageInfo(pkConfig);

        //6. 执行
        ag.execute();
    }

}

执行成功后，自动生成 entity mapper service controller