springboot整合mybatis-plus自动生成代码

要在项目下，新建一个module，把下面代码复制进去，配置好数据库连接字符串和账号密码，然后运行main，输入模块名，输入包路径，输入表名，就自动生产了。

1. pom.xml配置

org.springframework.boot
spring-boot-starter-parent
2.3.1.RELEASE




org.springframework.boot
spring-boot-starter-web


org.springframework.boot
spring-boot-starter-test
test



org.projectlombok
lombok
true



com.baomidou
mybatis-plus-boot-starter
3.3.2



com.baomidou
mybatis-plus-generator
3.3.2



org.freemarker
freemarker
2.3.30

<!—_swagger文档管理—>

io.swagger
swagger-annotations
1.5.22



mysql
mysql-connector-java
runtime

_

com.alibaba
druid
1.1.20

1. applicaiton.xml配置

   spring:
   datasource:
   name: mysql-connect
   username: root
   password: root
   driver-class-name: com.mysql.jdbc.Driver
   url: jdbc:mysql://localhost:3306/fxq-api?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=UTC
   mybatis:
   mapper-locations: classpath:mapping/*Mapper.xml
   type-aliases-package: org.convert.pdfconvert.model.entity

3. 自动生成代码

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.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
/**
 * @program: codeduck-auth
 * @description: mybatis-plus代码生成器
 * @author: wty
 * @create: 2020-09-27 15:27
 **/
public class CodeGenerateUtil {
    /**
     * 读取控制台内容
     */
    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.isNotEmpty(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();
        // 数据源配置
        DataSourceConfig dsc = new DataSourceConfig();
        dsc.setUrl("jdbc:mysql://localhost:3306/fxq-api?useUnicode=true&useSSL=false&characterEncoding=utf8&serverTimezone=UTC");
        // dsc.setSchemaName("public");
        dsc.setDriverName("com.mysql.cj.jdbc.Driver");
        dsc.setUsername("root");
        dsc.setPassword("root");
        mpg.setDataSource(dsc);
        String projectPath = System.getProperty("user.dir");
        String module_name = scanner("请输入要生成代码的模块名字：");
        File module_url = new File(projectPath + "/" + module_name);
        if(!module_url.exists()){
           System.out.println("输入的模块不存在！");
           return;
        }
        String page_name = scanner("请输入模块的包全路径，例如：org.wty.mybatis.codercreate,根据自己的包路径正确输入：");
        String[] page_name_array = page_name.split("\\.");
        System.out.println(page_name_array[0]+page_name_array[1]+page_name_array[2]);
        String str = "";
        int n = page_name_array.length;
        for(int i = 0; i < n; i++){
            str += page_name_array[i];
            if(i != n -1)  str = str + "/";
        }
        File page_url = new File(projectPath + "/" + module_name + "/src/main/java/" + str);
        if(!page_url.exists()){
            System.out.println("输入的包名路径不正确，请检查模块名对应的包路径！");
            return;
        }
        // 全局配置
        GlobalConfig gc = new GlobalConfig();
        gc.setOutputDir(projectPath + "/" + module_name +"/src/main/java");
        // gc.setOutputDir("D:\\test");
        gc.setAuthor("wty");
        gc.setOpen(false);
        gc.setSwagger2(true); // 实体属性 Swagger2 注解
        gc.setServiceName("%sService");
        mpg.setGlobalConfig(gc);
        // 包配置
        PackageConfig pc = new PackageConfig();
        pc.setModuleName(null);
        pc.setParent(page_name);
        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 + "/" + module_name + "/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("tb_"); // 设置表前缀
        mpg.setStrategy(strategy);
        mpg.setTemplateEngine(new FreemarkerTemplateEngine());
        mpg.execute();
    }
}