Java Code Examples for freemarker.template.Configuration#setClassLoaderForTemplateLoading()

public String getEmailHtml(Map map, String templateName) {

        String htmlText = "";
        Configuration configuration = new Configuration(Configuration.VERSION_2_3_27);
        try {
            //加载模板路径，此处对应在resource目录下
            configuration.setClassLoaderForTemplateLoading(ClassLoader.getSystemClassLoader(), "ftl");
            //或者
//            configuration.setClassForTemplateLoading(this.getClass(), "/com/mail/ftl");
            //获取对应名称的模板
            Template template = configuration.getTemplate(templateName);
            //渲染模板为html
            htmlText = FreeMarkerTemplateUtils.processTemplateIntoString(template, map);
        } catch (Exception e) {
            e.printStackTrace();
        }

        return htmlText;
    }
 

private void init(String dbHost, Integer dbPort, String dbName, String dnaCollection, String pathwayCollection) throws IOException {
  cfg = new Configuration(Configuration.VERSION_2_3_23);

  cfg.setClassLoaderForTemplateLoading(
      this.getClass().getClassLoader(), "/act/installer/reachablesexplorer/templates");
  cfg.setDefaultEncoding("UTF-8");

  cfg.setTemplateExceptionHandler(TemplateExceptionHandler.RETHROW_HANDLER);
  cfg.setLogTemplateExceptions(true);

  reachableTemplate = cfg.getTemplate(reachableTemplateName);
  pathwayTemplate = cfg.getTemplate(pathwayTemplateName);

  // TODO: move this elsewhere.
  MongoClient client = new MongoClient(new ServerAddress(dbHost, dbPort));
  DB db = client.getDB(dbName);

  dnaDesignCollection = JacksonDBCollection.wrap(db.getCollection(dnaCollection), DNADesign.class, String.class);
  Cascade.setCollectionName(pathwayCollection);
}
 

private static Configuration templateConfiguration() {
  Configuration configuration = new Configuration(Configuration.VERSION_2_3_26);
  configuration.setDefaultEncoding("UTF-8");
  configuration.setLogTemplateExceptions(false);
  try {
    configuration.setSetting("object_wrapper",
        "DefaultObjectWrapper(2.3.26, forceLegacyNonListCollections=false, "
            + "iterableSupport=true, exposeFields=true)");
  } catch (TemplateException e) {
    e.printStackTrace();
  }
  configuration.setAPIBuiltinEnabled(true);
  configuration.setClassLoaderForTemplateLoading(ClassLoader.getSystemClassLoader(),
      "templates/notes");
  return configuration;
}
 

private static Configuration templateConfiguration() {
  Configuration configuration = new Configuration(Configuration.VERSION_2_3_26);
  configuration.setDefaultEncoding("UTF-8");
  configuration.setLogTemplateExceptions(false);
  try {
    configuration.setSetting("object_wrapper",
        "DefaultObjectWrapper(2.3.26, forceLegacyNonListCollections=false, "
            + "iterableSupport=true, exposeFields=true)");
  } catch (TemplateException e) {
    e.printStackTrace();
  }
  configuration.setAPIBuiltinEnabled(true);
  configuration.setClassLoaderForTemplateLoading(ClassLoader.getSystemClassLoader(),
      "templates/ccda");
  return configuration;
}
 

/**
 * 获取模板信息
 *
 * @param name 模板名
 * @return
 */
public Template getTemplate(String name) {
    //通过freemarkerd Configuration读取相应的ftl
    Configuration cfg = new Configuration(Configuration.VERSION_2_3_25);
    //设定去哪里读取相应的ftl模板文件，指定模板路径
    cfg.setClassLoaderForTemplateLoading(ClassLoader.getSystemClassLoader(), "ftl");
    try {
        //在模板文件目录中找到名称为name的文件
        Template template = cfg.getTemplate(name);
        return template;
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}
 

static String renderDocumentation(ConfigurationRegistry configurationRegistry) throws IOException, TemplateException {
    Configuration cfg = new Configuration(Configuration.VERSION_2_3_27);
    cfg.setClassLoaderForTemplateLoading(ConfigurationExporterTest.class.getClassLoader(), "/");
    cfg.setDefaultEncoding("UTF-8");
    cfg.setTemplateExceptionHandler(TemplateExceptionHandler.RETHROW_HANDLER);
    cfg.setLogTemplateExceptions(false);

    Template temp = cfg.getTemplate("configuration.asciidoc.ftl");
    StringWriter tempRenderedFile = new StringWriter();
    tempRenderedFile.write("////\n" +
        "This file is auto generated\n" +
        "\n" +
        "Please only make changes in configuration.asciidoc.ftl\n" +
        "////\n");
    final List<ConfigurationOption<?>> nonInternalOptions = configurationRegistry.getConfigurationOptionsByCategory()
        .values()
        .stream()
        .flatMap(List::stream)
        .filter(option -> !option.getTags().contains("internal"))
        .collect(Collectors.toList());
    final Map<String, List<ConfigurationOption<?>>> optionsByCategory = nonInternalOptions.stream()
        .collect(Collectors.groupingBy(ConfigurationOption::getConfigurationCategory, TreeMap::new, Collectors.toList()));
    temp.process(Map.of(
        "config", optionsByCategory,
        "keys", nonInternalOptions.stream().map(ConfigurationOption::getKey).sorted().collect(Collectors.toList())
    ), tempRenderedFile);

    // re-process the rendered template to resolve the ${allInstrumentationGroupNames} placeholder
    StringWriter out = new StringWriter();
    new Template("", tempRenderedFile.toString(), cfg)
        .process(Map.of("allInstrumentationGroupNames", getAllInstrumentationGroupNames()), out);

    return out.toString();
}
 

private void createConfiguration(String basePackagePath) {
  cfg = new Configuration(Configuration.VERSION_2_3_26);
  cfg.setClassLoaderForTemplateLoading(getClass().getClassLoader(), basePackagePath);
  cfg.setLogTemplateExceptions(false);
  setDefaultEncoding("UTF-8");
  setTemplateExceptionHandler(TemplateExceptionHandler.RETHROW_HANDLER);
}
 

@PostConstruct
public void init()
{
  Configuration cfg = new Configuration(Configuration.VERSION_2_3_22);
  
  cfg.setDefaultEncoding("UTF-8");
  
  String templatePath = _config.get("view.freemarker.templates",
                                   "classpath:/templates");
  
  ClassLoader loader = Thread.currentThread().getContextClassLoader();
  
  if (templatePath.startsWith("classpath:")) {
    String path = templatePath.substring(("classpath:").length());
    
    cfg.setClassLoaderForTemplateLoading(loader, path);
  }
  else {
    throw new UnsupportedOperationException();
  }
  
  cfg.setAutoFlush(false);
  
  cfg.setTemplateExceptionHandler(TemplateExceptionHandler.HTML_DEBUG_HANDLER);
  
  _cfg = cfg;
}
 

public OALRuntime(OALDefine define) {
    oalDefine = define;
    classPool = ClassPool.getDefault();
    configuration = new Configuration(new Version("2.3.28"));
    configuration.setEncoding(Locale.ENGLISH, CLASS_FILE_CHARSET);
    configuration.setClassLoaderForTemplateLoading(OALRuntime.class.getClassLoader(), "/code-templates");
    allDispatcherContext = new AllDispatcherContext();
    metricsClasses = new ArrayList<>();
    dispatcherClasses = new ArrayList<>();
    openEngineDebug = StringUtil.isNotEmpty(System.getenv("SW_OAL_ENGINE_DEBUG"));
}
 

protected AbstractRunningGenerator() {
    cfg = new Configuration(Configuration.VERSION_2_3_28);
    try {
        cfg.setClassLoaderForTemplateLoading(this.getClass().getClassLoader(), "/");
        cfg.setDefaultEncoding("UTF-8");
        cfg.setTemplateExceptionHandler(TemplateExceptionHandler.RETHROW_HANDLER);
        cfg.setLogTemplateExceptions(false);
        cfg.setWrapUncheckedExceptions(true);
    } catch (Exception e) {
        // never to do this
    }
}