springboot框架使用mybatis-plus3.5.1以下版本的代码生成器工具类

news2024/11/23 15:38:19

我们在使用springboot 框架和mybatis-plus 开发web项目的时候，像控制器这类的文件有了这个基于mybatis-plus 的代码生成器我们就不必自己创建了，直接执行后自动帮我们生成好控制器、服务处、实现层等等非常的方便。

废话不多说，还是直接分享代码生成器的工具类~

package com.jsonl.base.db;


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.config.*;
import com.baomidou.mybatisplus.generator.config.po.TableInfo;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
import com.jsonl.base.entities.BaseEntity;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Scanner;
/**
 * 老代码生成器适用于 3.5.1 以下版本
 * 提醒：
 * 在使用之前 需要把 文件里的 xxx  替换成 自己的com.xxx 的包前缀
 * mysqlIp  改为 自己的数据库 ip 包括账户密码
 * 把 java.vm  模板放到 resources 文件夹下
 * **/
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 Cg() {
        // 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);
        gc.setOutputDir(projectPath + "/src/main/java");
        gc.setOpen(false);
        gc.setSwagger2(true); //实体属性 Swagger2 注解
        mpg.setGlobalConfig(gc);

        String moduleName = scanner("模块名");
        String packageName = scanner("包名");
        String Author = scanner("创建人");
        gc.setAuthor(Author);
        // 数据源配置
        DataSourceConfig dsc = new DataSourceConfig();
        String db = scanner("数据库名");
        dsc.setUrl("jdbc:mysql://mysqlIp:3306/" + db + "?useUnicode=true&useSSL=false&characterEncoding=utf8");
        // dsc.setSchemaName("public");
        dsc.setDriverName("com.mysql.cj.jdbc.Driver");
        dsc.setUsername("root");
        dsc.setPassword("root");
        mpg.setDataSource(dsc);

        // 包配置
        PackageConfig pc = new PackageConfig();
//        pc.setModuleName(moduleName);
        pc.setParent("");
        pc.setEntity("com.xxx." + packageName + ".entities");
        pc.setService("com.xxx." + packageName + ".service.inteface");
        pc.setServiceImpl("com.xxx." + packageName + ".service.impl");
        pc.setController("com.xxx." + packageName + ".controller");
        pc.setMapper("com.xxx." + packageName + ".mapper");
        HashMap<String, String> pathMap = new HashMap<>();
        pathMap.put(ConstVal.ENTITY, projectPath + "/" + "service/" + moduleName + "/src/main/java/com/xxx/" + packageName + "/entities");
        pathMap.put(ConstVal.SERVICE, projectPath + "/" + "service/" + moduleName + "/src/main/java/com/xxx/" + packageName + "/service/inteface");
        pathMap.put(ConstVal.MAPPER, projectPath + "/" + "service/" + moduleName + "/src/main/java/com/xxx/" + packageName + "/mapper");
        pathMap.put(ConstVal.SERVICE_IMPL, projectPath + "/" + "service/" + moduleName + "/src/main/java/com/xxx/" + packageName + "/service/impl");
        pathMap.put(ConstVal.CONTROLLER, projectPath + "/" + "service/" + moduleName + "/src/main/java/com/xxx/" + packageName + "/controller");
        pc.setPathInfo(pathMap);
        mpg.setPackageInfo(pc);

        // 自定义配置
        InjectionConfig cfg = new InjectionConfig() {
            @Override
            public void initMap() {
                // to do nothing
            }
        };

        String mapperJavaPath = "/templates/mapper.java.vm";
        String entityPath = "/templates/entity.java.vm";
        String servicePath = "/templates/service.java.vm";
        String serviceImplPath = "/templates/serviceImpl.java.vm";
        String controllxxxath = "/templates/controller.java.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(entityPath) {
            @Override
            public String outputFile(TableInfo tableInfo) {
                return projectPath + "/service/" + moduleName + "/src/main/java/com/xxx/" + packageName + "/entities/" + tableInfo.getEntityName() + StringPool.DOT_JAVA;
            }
        });
        focList.add(new FileOutConfig(mapperJavaPath) {
            @Override
            public String outputFile(TableInfo tableInfo) {
                return projectPath + "/service/" + moduleName + "/src/main/java/com/xxx/" + packageName + "/mapper/" + tableInfo.getMapperName() + StringPool.DOT_JAVA;
            }
        });
        focList.add(new FileOutConfig(servicePath) {
            @Override
            public String outputFile(TableInfo tableInfo) {
                return projectPath + "/service/" + moduleName + "/src/main/java/com/xxx/" + packageName + "/service/inteface/" + tableInfo.getServiceName() + StringPool.DOT_JAVA;
            }
        });
        focList.add(new FileOutConfig(serviceImplPath) {
            @Override
            public String outputFile(TableInfo tableInfo) {
                return projectPath + "/service/" + moduleName + "/src/main/java/com/xxx/" + packageName + "/service/impl/" + tableInfo.getServiceImplName() + StringPool.DOT_JAVA;
            }
        });
        focList.add(new FileOutConfig(controllxxxath) {
            @Override
            public String outputFile(TableInfo tableInfo) {
                return projectPath + "/service/" + moduleName + "/src/main/java/com/xxx/" + packageName + "/controller/" + tableInfo.getControllerName() + StringPool.DOT_JAVA;
            }
        });
        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.setSuperEntityClass(BaseEntity.class);
        strategy.setEntityLombokModel(true);
        strategy.setRestControllerStyle(true);
        strategy.setChainModel(true);

        // 公共父类
        strategy.setSuperControllerClass("com.xxx." + packageName + ".BaseController");
        // 写于父类中的公共字段
        strategy.setSuperEntityColumns("id","created_at","updated_at","is_deleted");
        String[] tables = scanner("表名，多个英文逗号分割").split(",");
        strategy.setInclude(tables);
        strategy.setControllerMappingHyphenStyle(true);
//        String[] prefix = tables[0].split("_");
//        if (prefix.length > 1)
//            strategy.setTablePrefix(prefix[0]);
        strategy.setTablePrefix(moduleName);
        strategy.setEntityTableFieldAnnotationEnable(true);
        mpg.setStrategy(strategy);
//        mpg.setTemplateEngine(new FreemarkerTemplateEngine());
        mpg.execute();

    }

    public static void main(String[] args) {
        Cg();
    }

//    private static Map<String, String> path = new HashMap() {{
//        put("skeleton", "/service/aaa");
//    }};


}