Java之FreeMarker使用字符串作为模板

依赖：

            org.springframework.boot
            spring-boot-starter-freemarker
            2.3.2.RELEASE

            cn.hutool
            hutool-all
            5.7.22

public static void main(String[] args) throws IOException, TemplateException {
        //设置模板
        Configuration configuration = new Configuration(Configuration.VERSION_2_3_31);
        configuration.setTemplateLoader(new StringTemplateLoader());
        configuration.setDefaultEncoding("utf-8");

        //准备数据
        HashMap map = new HashMap<>();
        map.put("name", "张三丰");

        //准备模板
        String model = "你好，${name}";

        //构建
        Template template = new Template("You", model, configuration);

        //输出
        StringWriter writer = new StringWriter();
        template.process(map, writer);

        //打印
        System.out.println(writer.toString());

        //创建文件、如果多层路径不存在则创建
        File touch = FileUtil.touch("D:/aaa/a.txt");
        FileWriter w = new FileWriter(touch);
        //写入文件
        w.write(writer.toString());
    }