一篇超详细的SpringBoot整合MybatisPlus的文章

<?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>2.4.4</version>
        <relativepath/> <!-- lookup parent from repository -->
    </parent>
    <groupid>com.keafmd</groupid>
    <artifactid>springboot-mybatisplus</artifactid>
    <version>0.0.1-snapshot</version>
    <name>springboot-mybatisplus</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-jdbc</artifactid>
        </dependency>
        <dependency>
            <groupid>org.springframework.boot</groupid>
            <artifactid>spring-boot-starter-web</artifactid>
        </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.projectlombok</groupid>
            <artifactid>lombok</artifactid>
            <optional>true</optional>
        </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>

server:
  port: 80
spring:
  datasource:
    url: jdbc:mysql://127.0.0.1:3306/ssm-java1?usessl=false&&characterencoding=utf-8
    driver-class-name: com.mysql.cj.jdbc.driver
    username: root
    password: 18044229

package com.keafmd.controller;
import org.springframework.web.bind.annotation.requestmapping;
import org.springframework.web.bind.annotation.restcontroller;
/**
 * keafmd
 *
 * @classname: hellocontroller
 * @description:
 * @author: 牛哄哄的柯南
 * @date: 2021-04-09 11:11
 * @blog: https://keafmd.blog.csdn.net/
 */
@restcontroller
public class hellocontroller {
    @requestmapping("/hello")
    public string hello(){
        return "keafmd";
    }
}

<dependency>
   <groupid>com.baomidou</groupid>
    <artifactid>mybatis-plus-generator</artifactid>
    <scope>test</scope>
    <version>3.4.0</version>
</dependency>
<dependency>
    <groupid>org.freemarker</groupid>
    <artifactid>freemarker</artifactid>
    <scope>test</scope>
    <version>2.3.31</version>
</dependency>

package com.keafmd.mp;
import com.baomidou.mybatisplus.core.exceptions.mybatisplusexception;
import com.baomidou.mybatisplus.core.toolkit.stringpool;
import com.baomidou.mybatisplus.core.toolkit.stringutils;
import com.baomidou.mybatisplus.generator.autogenerator;
import com.baomidou.mybatisplus.generator.injectionconfig;
import com.baomidou.mybatisplus.generator.config.*;
import com.baomidou.mybatisplus.generator.config.po.tableinfo;
import com.baomidou.mybatisplus.generator.config.rules.namingstrategy;
import com.baomidou.mybatisplus.generator.engine.freemarkertemplateengine;
import java.util.arraylist;
import java.util.list;
import java.util.scanner;
/**
 * keafmd
 *
 * @classname: codegenerator
 * @description:
 * @author: 牛哄哄的柯南
 * @date: 2021-03-23 21:47
 */
// 演示例子，执行 main 方法控制台输入模块表名回车自动生成对应项目目录中
public class codegenerator {
    /**
     * <p>
     * 读取控制台内容
     * </p>
     */
    public static string scanner(string tip) {
        scanner scanner = new scanner(system.in);
        stringbuilder help = new stringbuilder();
        help.append("请输入" + tip + "：");
        system.out.println(help.tostring());
        if (scanner.hasnext()) {
            string ipt = scanner.next();
            if (stringutils.isnotblank(ipt)) {
                return ipt;
            }
        }
        throw new mybatisplusexception("请输入正确的" + tip + "！");
    }
    public static void main(string[] args) {
        // 代码生成器
        autogenerator mpg = new autogenerator();
        // 全局配置
        globalconfig gc = new globalconfig();
        string projectpath = system.getproperty("user.dir");
//        system.out.println("projectpath = " + projectpath);
        gc.setoutputdir(projectpath + "/src/main/java");
//        gc.setoutputdir("d:\\test");
        gc.setauthor("关注公众号：牛哄哄的柯南");
        gc.setopen(false);
        // gc.setswagger2(true); 实体属性 swagger2 注解
        gc.setservicename("%sservice");
        mpg.setglobalconfig(gc);
        // 数据源配置
        datasourceconfig dsc = new datasourceconfig();
        dsc.seturl("jdbc:mysql://localhost:3306/ssm-java1?useunicode=true&usessl=false&characterencoding=utf8&servertimezone=utc");
        // dsc.setschemaname("public");
        dsc.setdrivername("com.mysql.cj.jdbc.driver");
        dsc.setusername("root");
        dsc.setpassword("18044229");
        mpg.setdatasource(dsc);
        // 包配置
        packageconfig pc = new packageconfig();
        pc.setmodulename(null);
        pc.setparent("com.keafmd");
        mpg.setpackageinfo(pc);
        // 自定义配置
        injectionconfig cfg = new injectionconfig() {
            @override
            public void initmap() {
                // to do nothing
            }
        };
        // 如果模板引擎是 freemarker
        string templatepath = "/templates/mapper.xml.ftl";
        // 如果模板引擎是 velocity
        // string templatepath = "/templates/mapper.xml.vm";
        // 自定义输出配置
        list<fileoutconfig> foclist = new arraylist<>();
        // 自定义配置会被优先输出
        foclist.add(new fileoutconfig(templatepath) {
            @override
            public string outputfile(tableinfo tableinfo) {
                // 自定义输出文件名 ， 如果你 entity 设置了前后缀、此处注意 xml 的名称会跟着发生变化！！
                return projectpath + "/src/main/resources/mapper/"
                        + "/" + tableinfo.getentityname() + "mapper" + stringpool.dot_xml;
            }
        });
        cfg.setfileoutconfiglist(foclist);
        mpg.setcfg(cfg);
        // 配置模板
        templateconfig templateconfig = new templateconfig();
        templateconfig.setxml(null);
        mpg.settemplate(templateconfig);
        // 策略配置
        strategyconfig strategy = new strategyconfig();
        strategy.setnaming(namingstrategy.underline_to_camel);
        strategy.setcolumnnaming(namingstrategy.underline_to_camel);
        strategy.setentitylombokmodel(true);
        strategy.setrestcontrollerstyle(true);
        strategy.setinclude(scanner("表名，多个英文逗号分割").split(","));
        strategy.setcontrollermappinghyphenstyle(true);
        strategy.settableprefix("m_");
        mpg.setstrategy(strategy);
        mpg.settemplateengine(new freemarkertemplateengine());
        mpg.execute();
    }
}