官方文档: http://ibeetl.com/guide/#beetl
多谢beetl的作者抽空指点!!!
根据远程文件服务器生成模板:
需要注意的是:
- StringTemplateResourceLoader：字符串模板加载器，用于加载字符串模板，如本例所示(根据url读取文件内容,然后根据这个对象生成Template对象)
- FileResourceLoader：文件模板加载器，需要一个根目录作为参数构造，传入getTemplate方法的String是模板文件相对于Root目录的相对路径
- ClasspathResourceLoader：文件模板加载器，模板文件位于Classpath里
- WebAppResourceLoader：用于webapp集成，假定模板根目录就是WebRoot目录，参考web集成章
- MapResourceLoader : 可以动态存入模板
- CompositeResourceLoader 混合使用多种加载方式
protected void generateFile(String template, String filePath) { ???????if(template.indexOf("http") != -1) { ???????????try { ???????????????//创建一个URL实例 ???????????????URL url = new URL("http://xxx/xxx/wKgUFFub3CmAer4pAAABjPGvkcI576.btl"); ???????????????//通过URL的openStrean方法获取URL对象所表示的自愿字节输入流 ???????????????InputStream is = url.openStream(); ???????????????InputStreamReader isr = new InputStreamReader(is,"utf-8"); ???????????????//为字符输入流添加缓冲 ???????????????BufferedReader br = new BufferedReader(isr); ???????????????String data = null;//读取数据 ???????????????StringBuffer sb = new StringBuffer(); ???????????????while ((data = br.readLine())!=null){//循环读取数据 ???????????????????data += "\r\n"; ???????????????????sb.append(data); ???????????????} ???????????????br.close(); ???????????????isr.close(); ???????????????is.close(); ???????????????StringTemplateResourceLoader resourceLoader = new StringTemplateResourceLoader(); ???????????????Configuration cfg = Configuration.defaultConfiguration(); ???????????????GroupTemplate gt = new GroupTemplate(resourceLoader,cfg); ???????????????Template pageTemplate = gt.getTemplate(sb.toString()); ???????????????templateToFile(filePath, pageTemplate); ???????????} catch (IOException e) { ???????????????e.printStackTrace(); ???????????} ???????}else { ???????????Template pageTemplate = groupTemplate.getTemplate(template); ???????????templateToFile(filePath, pageTemplate); ???????} ???} ???protected void templateToFile(String filePath, Template pageTemplate) { ???????configTemplate(pageTemplate); ???????if (PlatformUtil.isWindows()) { ???????????filePath = filePath.replaceAll("/+|\\\\+", "\\\\"); ???????} else { ???????????filePath = filePath.replaceAll("/+|\\\\+", "/"); ???????} ???????File file = new File(filePath); ???????File parentFile = file.getParentFile(); ???????if (!parentFile.exists()) { ???????????parentFile.mkdirs(); ???????} ???????FileOutputStream fileOutputStream = null; ???????try { ???????????fileOutputStream = new FileOutputStream(file); ???????????pageTemplate.renderTo(fileOutputStream); ???????} catch (FileNotFoundException e) { ???????????e.printStackTrace(); ???????} finally { ???????????try { ???????????????fileOutputStream.close(); ???????????} catch (IOException e) { ???????????????e.printStackTrace(); ???????????} ???????} ???}beetl学习根据URL生成模板
原文地址：https://www.cnblogs.com/yxgmagic/p/9650414.html