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://HdhCmsTestw3.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();

     }

}