org.springframework.web.servlet.view.AbstractView#org.apache.velocity.tools.generic.NumberTool源码实例Demo

private void mergeTemplate(String name, String encoding, Map<String, Object> model, StringWriter writer) 
		throws ResourceNotFoundException, ParseErrorException, Exception {
	
    VelocityContext velocityContext = new VelocityContext(model);
    velocityContext.put("dateSymbol", new DateTool());
    velocityContext.put("numberSymbol", new NumberTool());
    velocityContext.put("mathSymbol", new MathTool());

    Template template = engine().getTemplate(name, encoding);
    template.merge(velocityContext, writer);
}
 

/**
 * Velocity 模板发送邮件 html 格式
 *
 * @param to
 * @param subject
 * @throws javax.mail.MessagingException
 */
public void sendMailVelocity(String from ,String[] to, String subject) throws MessagingException {

    //如果不是 html 格式，修改为  SimpleMailMessage
    MimeMessage message = mailSender.createMimeMessage();
    MimeMessageHelper helper = new MimeMessageHelper(message, true, StandardCharsets.UTF_8.toString());

    /**
     *邮件内容
     */
    helper.setFrom(from);
    helper.setTo(to);
    helper.setSubject(subject);

    //模板内容
    Map<String, Object> model = new HashMap<String, Object>();
    model.put("firstName", "Yashwant");
    model.put("lastName", "Chavan");
    model.put("location", "china");
    //创建动态 bean
    DynaBean dynaBean = new LazyDynaBean();
    dynaBean.set("name", "It is name"); //simple
    dynaBean.set("gender", new Integer(1));  //simple
    //设置 bean 属性

    // Velocity 工具类，实例可以直接放入 map ,在模板文件中直接使用
    // 如日期格式化 $dateTool.format("yyyy-MM-dd",$info.issueTime)
    DateTool dateTool = new DateTool();//日期工具
    NumberTool numberTool = new NumberTool();//数字工具
    model.put("dateTool",dateTool);
    model.put("numberTool",numberTool);

    model.put("bean", dynaBean);
    String text = VelocityEngineUtils.mergeTemplateIntoString(velocityEngine, "./templates/velocity_template_email-newsletter.vm", StandardCharsets.UTF_8.toString(), model);
    helper.setText(text, true);

    mailSender.send(message);
}
 

/**
 * Initializes Velocity engine
 */
private void init() {
       velocityEngine.setProperty(VelocityEngine.RESOURCE_LOADER, "class");
       velocityEngine.setProperty("class.resource.loader.class", "org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader");
       setLogFile();

       DateTool dateTool = new DateTool();
       dateTool.configure(this.configMap);
       MathTool mathTool = new MathTool();
       NumberTool numberTool = new NumberTool();
       numberTool.configure(this.configMap);
       SortTool sortTool = new SortTool();
       
       defaultContext = new VelocityContext();
       defaultContext.put("dateTool", dateTool);
       defaultContext.put("dateComparisonTool", new ComparisonDateTool());
       defaultContext.put("mathTool", mathTool);
       defaultContext.put("numberTool", numberTool);
       defaultContext.put("sortTool", sortTool);
       // Following tools need VelocityTools version 2.0+
       //defaultContext.put("displayTool", new DisplayTool());
       //defaultContext.put("xmlTool", new XmlTool());
       
       try {
		velocityEngine.init();
	} catch (Exception e) {
		throw new VelocityException(e);
	}
}
 

protected FactoryConfiguration getBaseConfig()
{
    FactoryConfiguration base = new FactoryConfiguration();

    Data datum = new Data();
        datum.setKey("version");
        datum.setType("number");
        datum.setValue("2.0");
    base.addData(datum);

    ToolboxConfiguration toolbox = new ToolboxConfiguration();
    toolbox.setScope(Scope.REQUEST);
    toolbox.setProperty("locale", Locale.US);
        ToolConfiguration tool = new ToolConfiguration();
            tool.setClass(ResourceTool.class);
        toolbox.addTool(tool);
    base.addToolbox(toolbox);

    toolbox = new ToolboxConfiguration();
    toolbox.setScope(Scope.APPLICATION);
        tool = new ToolConfiguration();
            tool.setKey("calc");
            tool.setClass(MathTool.class);
        toolbox.addTool(tool);

        tool = new ToolConfiguration();
            tool.setClass(NumberTool.class);
            tool.setProperty("locale", Locale.FRENCH);
        toolbox.addTool(tool);
    base.addToolbox(toolbox);

    return base;
}
 

public @Test void testEasyConfig()
{
    EasyFactoryConfiguration easy = new EasyFactoryConfiguration();
    easy.number("version", 2.0);
    easy.toolbox("request")
            .property("locale", Locale.US)
            .tool(ResourceTool.class);
    easy.toolbox("application")
            .tool("calc", MathTool.class)
            .tool(NumberTool.class)
                .property("locale", Locale.FRENCH);

    assertValid(easy);
    assertConfigEquals(getBaseConfig(), easy);
}
 

public static FactoryConfiguration getConfiguration()
{
    EasyFactoryConfiguration easy = new EasyFactoryConfiguration();
    easy.number("version", 2.0);
    easy.toolbox("request")
            .property("locale", Locale.US)
            .tool(ResourceTool.class);
    easy.toolbox("application")
            .tool("calc", MathTool.class)
            .tool(NumberTool.class)
                .property("locale", Locale.FRENCH);
    return easy;
}
 

private void generateHtmlfile(Map<String, Object> input) {	   
 try{
 	VelocityEngine ve = new VelocityEngine();
 	ve.setProperty(RuntimeConstants.RESOURCE_LOADER, "classpath");
 	ve.setProperty("classpath.resource.loader.class",ClasspathResourceLoader.class.getName());
 	ve.init();
 	Template template = ve.getTemplate("templates/acmeair-report.vtl");
 	VelocityContext context = new VelocityContext();
 	 	    
 	 
 	for(Map.Entry<String, Object> entry: input.entrySet()){
 		context.put(entry.getKey(), entry.getValue());
 	}
 	context.put("math", new MathTool());
 	context.put("number", new NumberTool());
 	context.put("date", new ComparisonDateTool());
 	
 	Writer file = new FileWriter(new File(searchingLocation
	+ System.getProperty("file.separator") + RESULTS_FILE));	    
 	template.merge( context, file );
 	file.flush();
 	file.close();
   
 }catch(Exception e){
 	e.printStackTrace();
 }
}
 

@Test
public void testExposeHelpers() throws Exception {
	final String templateName = "test.vm";

	WebApplicationContext wac = mock(WebApplicationContext.class);
	given(wac.getServletContext()).willReturn(new MockServletContext());

	final Template expectedTemplate = new Template();
	VelocityConfig vc = new VelocityConfig() {
		@Override
		public VelocityEngine getVelocityEngine() {
			return new TestVelocityEngine(templateName, expectedTemplate);
		}
	};
	Map<String, VelocityConfig> configurers = new HashMap<String, VelocityConfig>();
	configurers.put("velocityConfigurer", vc);
	given(wac.getBeansOfType(VelocityConfig.class, true, false)).willReturn(configurers);


	// let it ask for locale
	HttpServletRequest req = mock(HttpServletRequest.class);
	given(req.getAttribute(View.PATH_VARIABLES)).willReturn(null);
	given(req.getAttribute(DispatcherServlet.LOCALE_RESOLVER_ATTRIBUTE)).willReturn(new AcceptHeaderLocaleResolver());
	given(req.getLocale()).willReturn(Locale.CANADA);

	final HttpServletResponse expectedResponse = new MockHttpServletResponse();

	VelocityView vv = new VelocityView() {
		@Override
		protected void mergeTemplate(Template template, Context context, HttpServletResponse response) throws Exception {
			assertTrue(template == expectedTemplate);
			assertTrue(response == expectedResponse);

			assertEquals("myValue", context.get("myHelper"));
			assertTrue(context.get("math") instanceof MathTool);

			assertTrue(context.get("dateTool") instanceof DateTool);
			DateTool dateTool = (DateTool) context.get("dateTool");
			assertTrue(dateTool.getLocale().equals(Locale.CANADA));

			assertTrue(context.get("numberTool") instanceof NumberTool);
			NumberTool numberTool = (NumberTool) context.get("numberTool");
			assertTrue(numberTool.getLocale().equals(Locale.CANADA));
		}

		@Override
		protected void exposeHelpers(Map<String, Object> model, HttpServletRequest request) throws Exception {
			model.put("myHelper", "myValue");
		}
	};

	vv.setUrl(templateName);
	vv.setApplicationContext(wac);
	Map<String, Class<?>> toolAttributes = new HashMap<String, Class<?>>();
	toolAttributes.put("math", MathTool.class);
	vv.setToolAttributes(toolAttributes);
	vv.setDateToolAttribute("dateTool");
	vv.setNumberToolAttribute("numberTool");
	vv.setExposeSpringMacroHelpers(false);

	vv.render(new HashMap<String, Object>(), req, expectedResponse);

	assertEquals(AbstractView.DEFAULT_CONTENT_TYPE, expectedResponse.getContentType());
}
 

public @Test void testNumberTool() {
        NumberTool numberTool = (NumberTool)toolbox.get("number");
        assertNotNull(numberTool);
//        assertEquals()
    }