Java Velocity.mergeTemplate方法代碼示例

import org.apache.velocity.app.Velocity; //導入方法依賴的package包/類
private void showTasks(HttpServletRequest request, HttpServletResponse response, Collection<TaskRecord> tasks, String title, boolean showDbStats)
        throws IOException {
    if ("json".equals(request.getParameter("format"))) {
        response.setContentType("text/plain");
    } else {
        response.setContentType("text/html");
    }
    int offset = getOffset(request);
    int length = getLength(request);
    // Create Velocity context
    VelocityContext context = new VelocityContext();
    context.put("tasks", tasks);
    context.put("title", title);
    context.put("reportStore", metadata);
    context.put("request", request);
    context.put("offset", offset);
    context.put("length", length);
    context.put("lastResultNum", offset + length - 1);
    context.put("prevOffset", Math.max(0, offset - length));
    context.put("nextOffset", offset + length);
    context.put("showStats", showDbStats);
    context.put("JSON_DATE_FORMAT", JSON_DATE_FORMAT);
    context.put("HTML_DATE_FORMAT", HTML_DATE_FORMAT);
    context.put("PAGE_LENGTH", PAGE_LENGTH);
    // Return Velocity results
    try {
        Velocity.mergeTemplate("tasks.vm", "UTF-8", context, response.getWriter());
        response.setStatus(HttpServletResponse.SC_OK);
    } catch (Exception e) {
        LOG.warn("Failed to display tasks.vm", e);
        response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Failed to display tasks.vm");
    }
}
 

import org.apache.velocity.app.Velocity; //導入方法依賴的package包/類
@Test
public void renderMatrixTemplateTest() throws Exception {
    //when:
    String result = templateService.renderTemplate(pof, "Title", "default", riskIssues);
    //then:
    verify(pof, times(1)).isFilter();
    verify(pof, times(1)).isProject();
    verify(pof, times(1)).getName();
    verify(webResourceUrlProvider, times(1)).getBaseUrl();

    StringWriter sw = new StringWriter();
    Writer writer = new BufferedWriter(sw);
    VelocityContext context = new VelocityContext();

    Velocity.mergeTemplate("src/main/resources/templates/matrixTemplate.vm", "UTF-8", context, writer);
    writer.close();
    sw.close();
    String expectedResults = sw.getBuffer().toString();

    assertEquals("Template service result is not what expected", expectedResults, result);
}
 

import org.apache.velocity.app.Velocity; //導入方法依賴的package包/類
public static void main(String args[])
throws Exception
{
    if ( args.length == 0 || ! args[0].endsWith(".vm") )
    {
        System.err.println(
            "Usage: java Driver x.vm");
        return;
    }
    
    Velocity.init();
    VelocityContext context = new VelocityContext();
    PrintWriter writer = new PrintWriter(System.out, true);
    Velocity.mergeTemplate(args[0], context, writer);
    writer.flush();
    writer.close();
}
 

import org.apache.velocity.app.Velocity; //導入方法依賴的package包/類
/**
 * 根據Velocity模板，生成相應的文件
 *
 * @param context VelocityHost
 * @param resultFilePath 生成的文件路徑
 * @param templateFile Velocity模板文件
 * @return
 */
public static boolean mergeVelocityContext(VelocityContext context, String resultFilePath, String templateFile)
        throws Exception {
    FileWriter daoWriter = null;
    try {
        daoWriter = new FileWriter(resultFilePath);
        Velocity.mergeTemplate(templateFile, "UTF-8", context, daoWriter);
    } catch (Throwable e) {
        throw e;
    } finally {
        JavaIOUtils.closeWriter(daoWriter);
    }

    return true;
}
 

import org.apache.velocity.app.Velocity; //導入方法依賴的package包/類
public String generateConfFile(String template, VelocityContext context) {
	StringWriter sw = new StringWriter();
	try {
		Velocity.mergeTemplate(template + ".vm", "UTF-8", context, sw);
	} catch (Exception ex) {
		log.error("Failed to load velocity template '{0}'", ex, template);
		return null;
	}

	return sw.toString();
}
 

import org.apache.velocity.app.Velocity; //導入方法依賴的package包/類
public String generateConfFile(String template, VelocityContext context) {
	StringWriter sw = new StringWriter();
	try {
		Velocity.mergeTemplate(template + ".vm", "UTF-8", context, sw);
	} catch (Exception ex) {
		log.error("Failed to load velocity template '{}'", template, ex);
		return null;
	}

	return sw.toString();
}
 

import org.apache.velocity.app.Velocity; //導入方法依賴的package包/類
/**
 * 渲染Velocity模板
 * @param path
 * @param map
 */
public static String mergeTemplate(String path, Map<String, Object> map) throws IOException {
	VelocityContext vc = new VelocityContext();
	if (null != map) {
		for (String key : map.keySet()) {
			vc.put(key, map.get(key));
		}
	}
	StringWriter w = new StringWriter();
	Velocity.mergeTemplate(path, "utf-8", vc, w);
	String content = w.toString();
	w.close();
	return content;
}
 

import org.apache.velocity.app.Velocity; //導入方法依賴的package包/類
/**
 * Generate the specified output file by merging the specified
 * Velocity template with the supplied context.
 */
protected void generateFile(File file,
                            String templateName,
                            VelocityContext context) throws IOException {
    try (Writer writer = new BufferedWriter(new FileWriter(file))) {
        Velocity.mergeTemplate(classpathPrefix + templateName,
                ENCODING,
                context,
                writer);
        writer.flush();
    }
}
 

import org.apache.velocity.app.Velocity; //導入方法依賴的package包/類
public static void main(String args[])
throws Exception
{
    Velocity.init();
    VelocityContext context = new VelocityContext();
    context.put("dictionary", dictionary);
    context.put("names", names);
    PrintWriter writer = new PrintWriter(System.out, true);
    Velocity.mergeTemplate("TermsTable.vm", context, writer);
    writer.flush();
    writer.close();
}
 

import org.apache.velocity.app.Velocity; //導入方法依賴的package包/類
public static void main(String args[])
throws Exception
{
    Calendar calendar = Calendar.getInstance();
    int hour = calendar.get(Calendar.HOUR_OF_DAY);
    
    Velocity.init();
    VelocityContext context = new VelocityContext();
    context.put("now", calendar.getTime());
    context.put("hour", new Integer(hour));
    PrintWriter writer = new PrintWriter(System.out, true);
    Velocity.mergeTemplate("TheTime.vm", context, writer);
    writer.flush();
    writer.close();
}
 

import org.apache.velocity.app.Velocity; //導入方法依賴的package包/類
public static void main(String args[])
throws Exception
{
    Velocity.init();
    VelocityContext context = new VelocityContext();
    context.put("dictionary", dictionary);
    context.put("names", names);
    PrintWriter writer = new PrintWriter(System.out, true);
    Velocity.mergeTemplate("TermsDictionary.vm", context, writer);
    writer.flush();
    writer.close();
}
 

import org.apache.velocity.app.Velocity; //導入方法依賴的package包/類
public String Write(Guide guide) {
	Velocity.setProperty(RuntimeConstants.RESOURCE_LOADER, "classpath"); 
	Velocity.setProperty("classpath.resource.loader.class", ClasspathResourceLoader.class.getName());
	Velocity.init();
	VelocityContext context = new VelocityContext();
	
	context.put("guide", guide);
	
	StringWriter writer = new StringWriter();
	Velocity.mergeTemplate("guide-html5.vm", "UTF-8", context, writer);
	
	return writer.toString();
}
 

import org.apache.velocity.app.Velocity; //導入方法依賴的package包/類
/**
 * 把Weather信息生成圖文消息
 * 
 * @param city
 * @param msg
 */
public NewsMessage generateWeatherReport(String city, NewsMessage msg) {
  WeatherInfo wi = weather.searchWeather(city);
  if (null == wi) return null;
  Date today = null;
  try {
    today = sdf.parse(wi.getDate_y());
  } catch (ParseException e) {
    e.printStackTrace();
  }
  if (null == today) return null;

  String[] days = getDaysArray(today, REPORT_DAYS);

  // 加載模板
  initVelocity();
  VelocityContext context = new VelocityContext();
  context.put("wi", wi);
  context.put("days", days);
  context.put("msg", msg);
  StringWriter writer = new StringWriter();

  Velocity.mergeTemplate("lemon/weixin/toolkit/weather.xml", MmtCharset.LOCAL_CHARSET, context,
      writer);
  // TODO 天氣消息直接轉NewsMessage
  return null;
}
 

import org.apache.velocity.app.Velocity; //導入方法依賴的package包/類
/**
 * This is the main method that generates the _Messages.java file.
 * The class is generated by extracting the list of messges from the
 * available LogMessages Resource.
 *
 * The extraction is done based on typeIdentifier which is a 3-digit prefix
 * on the messages e.g. BRK for Broker.
 *
 * @throws InvalidTypeException when an unknown parameter type is used in the properties file
 * @throws Exception            thrown by velocity if there is an error
 */
private void createMessageClass(String file)
        throws InvalidTypeException, Exception
{
    VelocityContext context = new VelocityContext();

    String bundle = file.replace(File.separator, ".");

    int packageStartIndex = bundle.indexOf(_packageSource) + _packageSource.length() + 2;

    bundle = bundle.substring(packageStartIndex, bundle.indexOf(".properties"));

    System.out.println("Creating Class for bundle:" + bundle);

    ResourceBundle fileBundle = ResourceBundle.getBundle(bundle, Locale.US);

    // Pull the bit from /os/path/<className>.logMessages from the bundle name
    String className = file.substring(file.lastIndexOf(File.separator) + 1, file.lastIndexOf("_"));
    debug("Creating ClassName form file:" + className);

    String packageString = bundle.substring(0, bundle.indexOf(className));
    String packagePath = packageString.replace(".", File.separator);

    debug("Package path:" + packagePath);

    File outputDirectory = new File(_outputDir + File.separator + packagePath);
    if (!outputDirectory.exists())
    {
        if (!outputDirectory.mkdirs())
        {
            throw new IllegalAccessException("Unable to create package structure:" + outputDirectory);
        }
    }

    // Get the Data for this class and typeIdentifier
    HashMap<String, Object> typeData = prepareType(className, fileBundle);

    context.put("package", packageString.substring(0, packageString.lastIndexOf('.')));
    //Store the resource Bundle name for the macro
    context.put("resource", bundle);

    // Store this data in the context for the macro to access
    context.put("type", typeData);

    // Create the file writer to put the finished file in
    String outputFile = _outputDir + File.separator + packagePath + className + "Messages.java";
    debug("Creating Java file:" + outputFile);
    FileWriter output = new FileWriter(outputFile);

    // Run Velocity to create the output file.
    // Fix the default file encoding to 'ISO-8859-1' rather than let
    // Velocity fix it. This is the encoding format for the macro.
    Velocity.mergeTemplate("LogMessages.vm", "ISO-8859-1", context, output);

    //Close our file.
    output.flush();
    output.close();
}