mybatis-plus自动生成代码

CodeGenerator.java

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.VelocityTemplateEngine;
import org.springframework.stereotype.Component;
import org.yaml.snakeyaml.Yaml;

import java.io.IOException;
import java.util.*;

@Component
public class CodeGenerator {

    private static String url = Config.get("spring.datasource.url");

    private static String driverName = Config.get("spring.datasource.driver-class-name");

    private static String username = Config.get("spring.datasource.username");

    private static String password = Config.get("spring.datasource.password");

    private static String projectPath = System.getProperty("user.dir");

    private static String moduleName = "";

    public static void generator(){
        // 代码生成器
        AutoGenerator mpg = new AutoGenerator();

        mpg.setGlobalConfig(getGlobalConfig());
        mpg.setDataSource(getDataSourceConfig());
        mpg.setPackageInfo(getPackageConfig());
        mpg.setCfg(getInjectionConfig());
        mpg.setTemplate(getTemplateConfig());
        mpg.setStrategy(getStrategyConfig());
        mpg.setTemplateEngine(new VelocityTemplateEngine());
        mpg.execute();
    }

    /**
     * 获取全局配置
     * @return
     */
    private static GlobalConfig getGlobalConfig(){
        // 全局配置
        GlobalConfig gc = new GlobalConfig();
        gc.setOutputDir(projectPath + "/src/main/java");
        gc.setAuthor(scanner("作者名"));
        gc.setOpen(false);
        gc.setBaseResultMap(true);
        gc.setBaseColumnList(true);

        return gc;
    }

    /**
     * 数据源配置
     * @return
     */
    private static DataSourceConfig getDataSourceConfig(){
        // 数据源配置
        DataSourceConfig dsc = new DataSourceConfig();
        dsc.setUrl(url);
        dsc.setDriverName(driverName);
        dsc.setUsername(username);
        dsc.setPassword(password);
        return dsc;
    }

    /**
     * 包配置
     * @return
     */
    private static PackageConfig getPackageConfig(){
        PackageConfig pc = new PackageConfig();
        pc.setParent(scanner("parent package(example:com.xxx.xxx)"));
        pc.setModuleName(moduleName);
        return pc;
    }

    /**
     * 自定义配置
     * @return
     */
    private static InjectionConfig getInjectionConfig(){
        // 自定义配置
        InjectionConfig cfg = new InjectionConfig() {
            @Override
            public void initMap() {
                // to do nothing
            }
        };
        // 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("/templates/mapper.xml.vm") {
            @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/" + moduleName
                        + "/" + tableInfo.getEntityName() + "Mapper" + StringPool.DOT_XML;
            }
        });
        cfg.setFileOutConfigList(focList);
        return cfg;
    }

    /**
     * 配置模板
     * @return
     */
    private static TemplateConfig getTemplateConfig(){
        // 配置模板
        TemplateConfig templateConfig = new TemplateConfig();

        // 配置自定义输出模板
        //指定自定义模板路径，注意不要带上.ftl/.vm, 会根据使用的模板引擎自动识别
        templateConfig.setXml(null);
        return templateConfig;
    }

    /**
     * 策略配置
     * @return
     */
    private static StrategyConfig getStrategyConfig(){
        // 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);
        return strategy;
    }

    /**
     * <p>
     * 读取控制台内容
     * </p>
     */
    private 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) throws IOException {
        generator();
    }
}

class Config {
    private static final Map config = new Yaml().load(CodeGenerator.class.getClassLoader().getResourceAsStream("application.yml"));

    public static String get(String key){
        if (StringUtils.isNotEmpty(key)){
            Queue<String> queue = new LinkedList(Arrays.asList(key.split("\\.")));
            return get(queue,config);
        }
        return null;
    }

    private static String get(Queue<String> strs, Map map){
        if(strs.size() > 1){
            Object o = map.get( strs.poll());
            if(o instanceof Map){
                return get(strs,(Map)o);
            }
            else{
                System.out.println("参数错误,该值不存在");
                return null;
            }
        }
        Object ret = map.get(strs.poll());
        if(ret instanceof String) return (String) ret;
        System.out.println("无法读取一个Object");
        return null;
    }
}