Java超级实用的Freemarker工具类

public class FreemarkerUtil {
    
    public static void execute(String ftlNameWithPath, Map<String, Object> data, String aimFileName) throws ioException, TemplateException {
        Configuration cfg = new Configuration(Configuration.VERSION_2_3_25);//创建Freemarker配置实例

        int i = ftlNameWithPath.lastIndexOf("/") == -1 ? ftlNameWithPath.lastIndexOf("\\") : ftlNameWithPath.lastIndexOf("/");

        cfg.setDirectoryForTemplateLoading(new File(ftlNameWithPath.substring(0, i + 1)));

        cfg.setDefaultEncoding("UTF-8");

        Template t1 = cfg.getTemplate(ftlNameWithPath.substring(i + 1));//加载模板文件
        Writer out = new FileWriter(new File(aimFileName));
        t1.process(data, out);
        out.flush();
        out.close();
    }

}

package com.resume.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.resume.domain.${className};

import java.util.List;


public interface ${className}Service extends IService<${className}> {

    
    List<${className}> listAllUsable${className}();

    
    boolean modify${className}Status(Integer id, Integer status);

    
    boolean modify(${className} ${objName});

}

public class GenApplication {
    private static String className = "Project";
    private static String objName = "project";
    private static String comment = "期日经验";

    private static String basePath = "src/main/java/com/resume/";

    public static void main(String[] args) throws IOException, TemplateException {
        // 生成Service接口
        genService(className, objName, comment);
    }

    
    private static void genService(String className, String objName, String comment) throws IOException, TemplateException {
        String ftlNameWithPath = basePath + "utils/gen/ftl/service.ftl";
        String aimFileName = basePath + "service/" + className + "Service.java";
        Map<String, Object> map = new HashMap<>();
        map.put("objName", objName);
        map.put("className", className);
        map.put("comment", comment);
        FreemarkerUtil.execute(ftlNameWithPath, map, aimFileName);
    }

}