What&#39;s the best way to do a simple `if`-`else` in Thymeleaf?

I want to achieve in Thymeleaf the same effect as

    &lt;c:choose&gt;
      &lt;c:when test=&quot;${potentially_complex_expression}&quot;&gt;
         &lt;h2&gt;Hello!&lt;/h2&gt;
      &lt;/c:when&gt;
      &lt;c:otherwise&gt;
         &lt;span class=&quot;xxx&quot;&gt;Something else&lt;/span&gt;
      &lt;/c:otherwise&gt;
    &lt;/c:choose&gt;

in JSTL.

What I&#39;ve figured so far:

&lt;!-- language: lang-html --&gt;

    &lt;div th:with=&quot;condition=${potentially_complex_expression}&quot; th:remove=&quot;tag&quot;&gt;
        &lt;h2 th:if=&quot;${condition}&quot;&gt;Hello!&lt;/h2&gt;
        &lt;span th:unless=&quot;${condition}&quot; class=&quot;xxx&quot;&gt;Something else&lt;/span&gt;
    &lt;/div&gt;

I don&#39;t want to evaluate `potentially_complex_expression` twice. That&#39;s why I introduced local variable `condition`. Still I don&#39;t like using both `th:if=&quot;${condition}` and `th:unless=&quot;${condition}&quot;`.

An important thing is that I use two different HTML tags: let&#39;s say `h2` and `span`.

Can you suggest a better way to achieve it?


How to do if-else in Thymeleaf?

I am using Thymeleaf as template engine. How I pass a variable from Spring model to JavaScript variable?


Spring-side:

    @RequestMapping(value = &quot;message&quot;, method = RequestMethod.GET)
    public String messages(Model model) {
        model.addAttribute(&quot;message&quot;, &quot;hello&quot;);
        return &quot;index&quot;;
    }

Client-side:

    &lt;script&gt;
        ....
        var m = ${message}; // not working
        alert(m);
        ...
    &lt;/script&gt;


Setting up a JavaScript variable from Spring model by using Thymeleaf

I have the following code in one of my controllers:

    @Controller
    @RequestMapping(&quot;/preference&quot;)
    public class PreferenceController {

        @RequestMapping(method = RequestMethod.GET, produces = &quot;text/html&quot;)
        public String preference() {
            return &quot;preference&quot;;
        }
    }

I am simply trying to test it using **Spring MVC test** as follows:

    @ContextConfiguration
    @WebAppConfiguration
    @RunWith(SpringJUnit4ClassRunner.class)
    public class PreferenceControllerTest {
    
    	@Autowired
    	private WebApplicationContext ctx;
    
    	private MockMvc mockMvc;
        @Before
    	public void setup() {
            mockMvc = webAppContextSetup(ctx).build();
        }
    
        @Test
    	public void circularViewPathIssue() throws Exception {
            mockMvc.perform(get(&quot;/preference&quot;))
                   .andDo(print());
    	}
    }

I am getting the following exception:

&gt; Circular view path [preference]: would dispatch back to the current
&gt; handler URL [/preference] again. Check your ViewResolver setup! (Hint:
&gt; This may be the result of an unspecified view, due to default view
&gt; name generation.)

What I find strange is that **it works fine when I load the &quot;full&quot; context configuration** that includes the template and view resolvers as shown below:

    &lt;bean class=&quot;org.thymeleaf.templateresolver.ServletContextTemplateResolver&quot; id=&quot;webTemplateResolver&quot;&gt;
        &lt;property name=&quot;prefix&quot; value=&quot;WEB-INF/web-templates/&quot; /&gt;
        &lt;property name=&quot;suffix&quot; value=&quot;.html&quot; /&gt;
        &lt;property name=&quot;templateMode&quot; value=&quot;HTML5&quot; /&gt;
        &lt;property name=&quot;characterEncoding&quot; value=&quot;UTF-8&quot; /&gt;
        &lt;property name=&quot;order&quot; value=&quot;2&quot; /&gt;
        &lt;property name=&quot;cacheable&quot; value=&quot;false&quot; /&gt;
    &lt;/bean&gt;

I am well aware that the prefix added by the template resolver ensures that there is not &quot;circular view path&quot; when the app uses this template resolver. 

But then how I am supposed to test my app using Spring MVC test?

How to avoid the &quot;Circular view path&quot; exception with Spring MVC test

Can I set data-* attribute with thymeleaf?

As I understood from thymeleaf documentation I tried:

    
    &lt;div th:data-el_id=&quot;${element.getId()}&quot;&gt; &lt;!-- doesn&#39;t work --&gt;

    &lt;div data-th-el_id=&quot;${element.getId()}&quot;&gt; &lt;!-- doesn&#39;t work --&gt;


using data-* attribute with thymeleaf

By using [**Thymeleaf**][1] as template engine, is it possible to add/remove dynamically a CSS class to/from a simple `div` with the `th:if` clause?

Normally, I could use the conditional clause as follows:

    &lt;a href=&quot;lorem-ipsum.html&quot; th:if=&quot;${condition}&quot;&gt;Lorem Ipsum&lt;/a&gt; 

&gt; We will be creating a link to the *lorem ipsum* page, but only if condition clause is true.

I&#39;m looking for something different: I&#39;d like the block to always visible, but with changeable classes according to the situation.


  [1]: https://www.google.it/url?sa=t&amp;rct=j&amp;q=&amp;esrc=s&amp;source=web&amp;cd=1&amp;cad=rja&amp;uact=8&amp;ved=0CCMQFjAA&amp;url=http%3A%2F%2Fwww.thymeleaf.org%2F&amp;ei=MI7gU6nJDcqp0QWQ5IDACA&amp;usg=AFQjCNEO8zpPJdx9vZOpb_nC-Zdd8gu03Q&amp;sig2=YpHXOZrgN-CgTai_imJrUA&amp;bvm=bv.72197243,d.bGE

Thymeleaf: how to use conditionals to dynamically add/remove a CSS class

I have some values in my database which can be null if they have not already been entered.

But when I use Thymeleaf in my html, it gives an error when parsing null values.

Is there any way to handle this?

Using Thymeleaf when the value is null

I&#39;m having an issue when trying to concat multiple values in my template.
According to Thymeleaf [here][1] I should simply be able to + them together...

&gt; **4.6 CONCATENATING TEXTS**
&gt;
Texts, no matter whether they are literals or the result of evaluating variable or message
expressions, can be easily concatenated using the + operator:

    th:text=&quot;&#39;The name of the user is &#39; + ${user.name}&quot;


  [1]: http://www.thymeleaf.org/doc/Tutorial%20-%20Using%20Thymeleaf%2020130224.pdf

Here is an example of what I found works:

    &lt;p th:text=&quot;${bean.field} + &#39;!&#39;&quot;&gt;Static content&lt;/p&gt;
This however doesn&#39;t:

    &lt;p th:text=&quot;${bean.field} + &#39;!&#39; + ${bean.field}&quot;&gt;Static content&lt;/p&gt;

Logically, this should work but its not, what am I doing wrong?


----------
Maven:
&lt;!-- language: xml --&gt;

    &lt;dependency&gt;
        &lt;groupId&gt;org.thymeleaf&lt;/groupId&gt;
        &lt;artifactId&gt;thymeleaf-spring3&lt;/artifactId&gt;
        &lt;version&gt;2.0.16&lt;/version&gt;
        &lt;scope&gt;compile&lt;/scope&gt;
    &lt;/dependency&gt;

----------
Here is how I&#39;ve set my TemplateEngine and TemplateResolver up:
&lt;!-- language: xml --&gt;

    &lt;!-- Spring config --&gt;
    &lt;bean id=&quot;templateResolver&quot; class=&quot;org.thymeleaf.templateresolver.ClassLoaderTemplateResolver&quot;&gt;
	    &lt;property name=&quot;suffix&quot; value=&quot;.html&quot;/&gt;
	    &lt;property name=&quot;templateMode&quot; value=&quot;HTML5&quot;/&gt;
	    &lt;property name=&quot;characterEncoding&quot; value=&quot;UTF-8&quot;/&gt;
	    &lt;property name=&quot;order&quot; value=&quot;1&quot;/&gt;
	&lt;/bean&gt;
	&lt;bean id=&quot;templateEngine&quot; class=&quot;org.thymeleaf.spring3.SpringTemplateEngine&quot;&gt;
	 	&lt;property name=&quot;templateResolver&quot; ref=&quot;fileTemplateResolver&quot;/&gt;
	 	&lt;property name=&quot;templateResolvers&quot;&gt;
	 		&lt;list&gt;
	 			&lt;ref bean=&quot;templateResolver&quot;/&gt;
	 		&lt;/list&gt;
	 	&lt;/property&gt;
	&lt;/bean&gt;
----------
ThymeleafTemplatingService:
&lt;!-- language: lang-java --&gt;

	@Autowired private TemplateEngine templateEngine;
	.....
	String responseText = this.templateEngine.process(templateBean.getTemplateName(), templateBean.getContext());

AbstractTemplate.java:
&lt;!-- language: lang-java --&gt;

	public abstract class AbstractTemplate {
	  private final String templateName;
	  public AbstractTemplate(String templateName){
	    this.templateName=templateName;
	  }
	  public String getTemplateName() {
	    return templateName;
	  }
	  protected abstract HashMap&lt;String, ?&gt; getVariables();
	  public Context getContext(){
	    Context context = new Context();
	    for(Entry&lt;String, ?&gt; entry : getVariables().entrySet()){
	      context.setVariable(entry.getKey(), entry.getValue());
	    }
	    return context;
	  }
	}


Thymeleaf: Concatenation - Could not parse as expression

I&#39;m using Thymeleaf to process html templates, I understood how to append inline strings from my controller, but now I want to append a fragment of html code into the page.

For example, lets stay that I have this in my java application:

    String n=&quot;&lt;span&gt;&lt;i class=\&quot;icon-leaf\&quot;&gt;&lt;/i&gt;&quot;+str+&quot;&lt;/span&gt; &lt;a href=\&quot;\&quot;&gt;&lt;/a&gt;\n&quot;;

    final WebContext ctx = new WebContext(request, response, 
                                          servletContext, request.getLocale());
    ctx.setVariable(&quot;n&quot;,n);

What do I need to write in the html page so that it would be replaced by the &quot;n&quot; variable and be processed as html code instead of it being encoded as text?


     

Process thymeleaf variable as html code and not text

    &lt;div th:if=&quot;${tblUserList != null}&quot;&gt;
     --content--
    &lt;/div&gt;

The above thymeleaf code is not working, where tblUserList is a list. So I want to check whether the list is empty instead of checking its null. How to do that?



How to check if list is empty using thymeleaf?

I&#39;m new in thymeleaf  and I try to create a template. My problem is this code:

**CODE**

    &lt;h1 th:text=&quot;${header.title}&quot; &gt;
       title
       &lt;small th:text=&quot;${header.subtitle}&quot; &gt;Subtitle&lt;/small&gt;
    &lt;/h1&gt;

I want to get this output:

    &lt;h1&gt; TITLE &lt;small&gt; SUBTITLE&lt;/small&gt; &lt;/h1&gt;

But this is the real output:

    &lt;h1&gt; TITLE &lt;/h1&gt;

How can I do so it doesn&#39;t remove what is inside of &quot;small&quot;?

Thymeleaf th:text - Put a text without removing HTML structures

I am trying to understand how to loop through all entries in a Map in Thymeleaf.  I have a domain object being processed by Thymeleaf that contains a Map&lt;Date,Object&gt;.

How do I loop through the keys and fetch the values ?

Thanks.

How to loop through Map in Thymeleaf

I have the following code setting a variable in my controller:

    model.set(&quot;type&quot;, type);

In the thymeleaf view I want to construct a form with action url:

    /mycontroller/{type}

Any ideas how to achieve this? I&#39;ve read thymeleaf documentation with no luck.

Thymeleaf construct URL with variable

I&#39;m using Spring 3 and Thymeleaf to make some webpages and I am lost as for how to show messages like this:

welcome.message=Hello {0}, welcome!

and then replace {0} with the user name inside thymeleaf tags:

    &lt;h1 th:text=&quot;#{welcome.message}&quot;&gt;Welcome Placeholder&lt;/h1&gt;

I&#39;m not even sure if {0} is the right syntax for the bundle message.

How to show localization messages with parameters in Spring 3 / Thymeleaf

I am having a lot of difficulty with POSTing back a form to the controller, which should contain simply an arraylist of objects that the user may edit. 

The form loads up correctly, but when it&#39;s posted, it never seems to actually post anything. 

Here is my form: 

    &lt;form action=&quot;#&quot; th:action=&quot;@{/query/submitQuery}&quot; th:object=&quot;${clientList}&quot; method=&quot;post&quot;&gt;

    &lt;table class=&quot;table table-bordered table-hover table-striped&quot;&gt;
    &lt;thead&gt;
        &lt;tr&gt;
            &lt;th&gt;Select&lt;/th&gt;
            &lt;th&gt;Client ID&lt;/th&gt;
            &lt;th&gt;IP Addresss&lt;/th&gt;
            &lt;th&gt;Description&lt;/th&gt;            
       &lt;/tr&gt;
     &lt;/thead&gt;
     &lt;tbody&gt;     
         &lt;tr th:each=&quot;currentClient, stat : ${clientList}&quot;&gt;         
             &lt;td&gt;&lt;input type=&quot;checkbox&quot; th:checked=&quot;${currentClient.selected}&quot; /&gt;&lt;/td&gt;
             &lt;td th:text=&quot;${currentClient.getClientID()}&quot; &gt;&lt;/td&gt;
             &lt;td th:text=&quot;${currentClient.getIpAddress()}&quot;&gt;&lt;/td&gt;
             &lt;td th:text=&quot;${currentClient.getDescription()}&quot; &gt;&lt;/td&gt;
          &lt;/tr&gt;
      &lt;/tbody&gt;
      &lt;/table&gt;
      &lt;button type=&quot;submit&quot; value=&quot;submit&quot; class=&quot;btn btn-success&quot;&gt;Submit&lt;/button&gt;
      &lt;/form&gt;

Above works fine, it loads up the list correctly. However, when I POST, it returns a empty object (of size 0). I believe this is due to the lack of `th:field`, but anyway here is controller POST method: 

    ...
    private List&lt;ClientWithSelection&gt; allClientsWithSelection = new ArrayList&lt;ClientWithSelection&gt;();
    //GET method
    ...
    model.addAttribute(&quot;clientList&quot;, allClientsWithSelection)
    ....
    //POST method
    @RequestMapping(value=&quot;/submitQuery&quot;, method = RequestMethod.POST)
    public String processQuery(@ModelAttribute(value=&quot;clientList&quot;) ArrayList clientList, Model model){
        //clientList== 0 in size
        ...
    }

I have tried adding a `th:field` but regardless of what I do, it causes an exception. 

I&#39;ve tried: 

    ...
    &lt;tr th:each=&quot;currentClient, stat : ${clientList}&quot;&gt;   
         &lt;td&gt;&lt;input type=&quot;checkbox&quot; th:checked=&quot;${currentClient.selected}&quot;  th:field=&quot;*{}&quot; /&gt;&lt;/td&gt;
 
        &lt;td th th:field=&quot;*{currentClient.selected}&quot; &gt;&lt;/td&gt;
    ...

I cannot access currentClient (compile error), I can&#39;t even select clientList, it gives me options like `get()`, `add()`, `clearAll()` etc, so it things it should have an array, however, I cannot pass in an array. 

I&#39;ve also tried using something like `th:field=${}`, this causes runtime exception

I&#39;ve tried 

    th:field = &quot;*{clientList[__currentClient.clientID__]}&quot; 

but also compile error. 

Any ideas?

----------------------------------------------------------------------

**UPDATE 1:**
-------------

Tobias suggested that I need to wrap my list in a wraapper. So that&#39;s what I did: 

**ClientWithSelectionWrapper:**

    public class ClientWithSelectionListWrapper {

    private ArrayList&lt;ClientWithSelection&gt; clientList;

    public List&lt;ClientWithSelection&gt; getClientList(){
        return clientList;
    }

    public void setClientList(ArrayList&lt;ClientWithSelection&gt; clients){
        this.clientList = clients;
    }
    }

**My page:** 

    &lt;form action=&quot;#&quot; th:action=&quot;@{/query/submitQuery}&quot; th:object=&quot;${wrapper}&quot; method=&quot;post&quot;&gt;
    ....
     &lt;tr th:each=&quot;currentClient, stat : ${wrapper.clientList}&quot;&gt;
         &lt;td th:text=&quot;${stat}&quot;&gt;&lt;/td&gt;
         &lt;td&gt;
             &lt;input type=&quot;checkbox&quot;
                    th:name=&quot;|clientList[${stat.index}]|&quot;
                    th:value=&quot;${currentClient.getClientID()}&quot;
                    th:checked=&quot;${currentClient.selected}&quot; /&gt;
         &lt;/td&gt;
         &lt;td th:text=&quot;${currentClient.getClientID()}&quot; &gt;&lt;/td&gt;
         &lt;td th:text=&quot;${currentClient.getIpAddress()}&quot;&gt;&lt;/td&gt;
         &lt;td th:text=&quot;${currentClient.getDescription()}&quot; &gt;&lt;/td&gt;
     &lt;/tr&gt;

Above loads fine: 
[![enter image description here][1]][1]

Then my controller: 

    @RequestMapping(value=&quot;/submitQuery&quot;, method = RequestMethod.POST)
    public String processQuery(@ModelAttribute ClientWithSelectionListWrapper wrapper, Model model){
    ... 
    }

The page loads correctly, the data is displayed as expected. If I post the form without any selection I get this: 

    org.springframework.expression.spel.SpelEvaluationException: EL1007E:(pos 0): Property or field &#39;clientList&#39; cannot be found on null

Not sure why it&#39;s complaining

(In the GET Method it has: ` model.addAttribute(&quot;wrapper&quot;, wrapper);`)

[![enter image description here][2]][2]

If I then make a selection, i.e. tick the first entry: 

    There was an unexpected error (type=Bad Request, status=400).
    Validation failed for object=&#39;clientWithSelectionListWrapper&#39;. Error count: 1

I&#39;m guessing my POST controller is not getting the clientWithSelectionListWrapper. Not sure why, since I have set the wrapper object to be posted back via the `th:object=&quot;wrapper&quot;` in the FORM header. 

----------------------------------------------------------------------

**UPDATE 2:**
-------------

I&#39;ve made some progress! Finally the submitted form is being picked up by the POST method in controller. However, all the properties appear to be null, except for whether the item has been ticked or not. I&#39;ve made various changes, this is how it is looking: 

    &lt;form action=&quot;#&quot; th:action=&quot;@{/query/submitQuery}&quot; th:object=&quot;${wrapper}&quot; method=&quot;post&quot;&gt;
    ....
     &lt;tr th:each=&quot;currentClient, stat : ${clientList}&quot;&gt;
         &lt;td th:text=&quot;${stat}&quot;&gt;&lt;/td&gt;
         &lt;td&gt;
             &lt;input type=&quot;checkbox&quot;
                    th:name=&quot;|clientList[${stat.index}]|&quot;
                    th:value=&quot;${currentClient.getClientID()}&quot;
                    th:checked=&quot;${currentClient.selected}&quot;
                    th:field=&quot;*{clientList[__${stat.index}__].selected}&quot;&gt;
         &lt;/td&gt;
         &lt;td th:text=&quot;${currentClient.getClientID()}&quot;
             th:field=&quot;*{clientList[__${stat.index}__].clientID}&quot;
             th:value=&quot;${currentClient.getClientID()}&quot;
         &gt;&lt;/td&gt;
         &lt;td th:text=&quot;${currentClient.getIpAddress()}&quot;
             th:field=&quot;*{clientList[__${stat.index}__].ipAddress}&quot;
             th:value=&quot;${currentClient.getIpAddress()}&quot;
         &gt;&lt;/td&gt;
         &lt;td th:text=&quot;${currentClient.getDescription()}&quot;
             th:field=&quot;*{clientList[__${stat.index}__].description}&quot;
             th:value=&quot;${currentClient.getDescription()}&quot;
         &gt;&lt;/td&gt;
         &lt;/tr&gt;

I also added a default param-less constructor to my wrapper class and added a `bindingResult` param to POST method (not sure if needed). 

    public String processQuery(@ModelAttribute ClientWithSelectionListWrapper wrapper, BindingResult bindingResult, Model model)

So when an object is being posted, this is how it is looking: 
[![enter image description here][3]][3]

Of course, the systemInfo is supposed to be null (at this stage), but the clientID is always 0, and ipAddress/Description always null. The selected boolean is correct though for all properties. I&#39;m sure I&#39;ve made a mistake on one of the properties somewhere. Back to investigation. 


----------------------------------------------------------------------

**UPDATE 3:**
-------------

Ok I&#39;ve managed to fill up all the values correctly! But I had to change my `td` to include an `&lt;input /&gt;` which is not what I wanted... Nonetheless, the values are populating correctly, suggesting spring looks for an input tag perhaps for data mapping?

Here is an example of how I changed the clientID table data: 

    &lt;td&gt;
     &lt;input type=&quot;text&quot; readonly=&quot;readonly&quot;                                                          
         th:name=&quot;|clientList[${stat.index}]|&quot;
         th:value=&quot;${currentClient.getClientID()}&quot;
         th:field=&quot;*{clientList[__${stat.index}__].clientID}&quot;
      /&gt;
    &lt;/td&gt;

Now I need to figure out how to display it as plain data, ideally without any presence of an input box...


  [1]: http://i.stack.imgur.com/LtWJm.jpg
  [2]: http://i.stack.imgur.com/V5FMr.jpg
  [3]: http://i.stack.imgur.com/ZR9Gz.png

How to bind an object list with thymeleaf?

I&#39;m building application with Spring MVC 3.2 and Thymeleaf templating engine. I&#39;m a beginner in Thymeleaf.

I have everything working, including Thymeleaf but I was wondering if anyone knows of a simple and clear toturial on how to do simple Ajax request to controller and in result rendering only a part of a template (fragment).

My app has everything configured (Spring 3.2, spring-security, thymeleaf, ...) and works as expected. Now I would like to do Ajax request (pretty simple with jQuery but I don&#39;t wan&#39;t to use is since Thymeleaf in its tutorial, chapter 11: Rendering Template Fragments ([link][1]) mentiones it can be done with fragments.

Currently I have in my Controller

    @RequestMapping(&quot;/dimensionMenuList&quot;)
    public String showDimensionMenuList(Model model) {
    		
        Collection&lt;ArticleDimensionVO&gt; articleDimensions;
        try {
            articleDimensions = articleService.getArticleDimension(ArticleTypeVO.ARTICLE_TYPE);
        } catch (DataAccessException e) {
            // TODO: return ERROR
            throw new RuntimeException();
        }

        model.addAttribute(&quot;dimensions&quot;, articleDimensions);

        return &quot;/admin/index :: dimensionMenuList&quot;;
    }

the part of the view where I would like to replace `&lt;ul&gt;&lt;/ul&gt;` menu items:

    &lt;ul th:fragment=&quot;dimensionMenuList&quot; class=&quot;dropdown-menu&quot;&gt;
        &lt;li th:unless=&quot;${#lists.isEmpty(dimensions)}&quot; th:each=&quot;dimension : ${dimensions}&quot;&gt;
            &lt;a href=&quot;#&quot; th:text=&quot;${dimension.dimension}&quot;&gt;&lt;/a&gt;
        &lt;/li&gt;
    &lt;/ul&gt;

Any clue is greatly appreciated. Especially if I don&#39;t have to include any more frameworks. It&#39;s already too much for java web app as it is. 

  [1]: http://www.thymeleaf.org/doc/html/Thymeleaf-Spring3.html

Spring MVC 3.2 Thymeleaf Ajax Fragments

I am new to Thymeleaf and converting my Web page from JSP to Thymeleaf. I have a strut tag like this:
 
    &lt;c:set var=&quot;someVariable&quot; value=&quot;${someValue}&quot;/&gt;

That variable can be used anywhere in JSP. Is there any such alternatives for this in Thymeleaf?

setting up a value for a variable name in thymeleaf

I have a text to render in three different possible colors using **thymeleaf**.

So the code I&#39;ve made so far to test the value is:

    th:if=&quot;${evaluation} &amp;gt; 50&quot;
    th:if=&quot;${evaluation} &amp;lt; 30&quot;

And that works well.

But the third test is for values between those two.
So I tried:

    th:if=&quot;(${evaluation} &amp;lt; 49) &amp;and; (${evaluation} &amp;gt; 29)&quot;

but it&#39;s not working, I&#39;ve got this error while parsing:

    org.thymeleaf.exceptions.TemplateProcessingException: Could not parse as expression: &quot;(${evaluation} &lt; 49) &amp;and; (${evaluation} &gt; 29)&quot; (/property.html:41)

Of course, these lines are between tags since the first two are working properly.

Maybe the and operand is not correct, but the documentation of thymeleaf is not really explicit on those operands.

All ideas are welcome!


**Update:** I got the answer from the thymeleaf forum. The way to do it is:

    th:if=&quot;${evaluation &amp;lt; 49 and evaluation &amp;gt; 29}&quot;

Problem solved!

How to have multiple condition in an th:if tag using thymeleaf

I&#39;m brand new to Java/Spring/Thymeleaf so please bear with my current level of understanding. I did review [this similar question][1], but wasn&#39;t able to solve my problem.

I&#39;m trying to get a simplified date instead of the long date format.

    // DateTimeFormat annotation on the method that&#39;s calling the DB to get date.
    @DateTimeFormat(pattern=&quot;dd-MMM-YYYY&quot;)
    public Date getReleaseDate() {
        return releaseDate;
    }
​
html:
&lt;!-- language: lang-html --&gt;

    &lt;table&gt;
        &lt;tr th:each=&quot;sprint : ${sprints}&quot;&gt;
            &lt;td th:text=&quot;${sprint.name}&quot;&gt;&lt;/td&gt;
            &lt;td th:text=&quot;${sprint.releaseDate}&quot;&gt;&lt;/td&gt;
        &lt;/tr&gt;
    &lt;/table&gt;

Current output

    sprint1	2016-10-04 14:10:42.183

  [1]: https://stackoverflow.com/questions/20361691/formatting-thfield-in-thymeleaf


Formatting date in Thymeleaf

I am using full stack Thymeleaf (spring mvc, security, layout dialect, webflow) in a mid-size web application. 
 
Ok..now that we put so much of code in the html templates it would be nice to include source code comments that don&#39;t get included in the generated HTML file.

How do we achieve that?

How to add source code comments in Thymeleaf templates that don&#39;t get included in generated HTML?

I&#39;m facing a problem when using Spring Security &amp;&amp; Thymeleaf, specifically when trying to use the [hasRole](http://docs.spring.io/spring-security/site/docs/4.0.1.RELEASE/reference/htmlsingle/#el-common-built-in) expression. The &#39;admin&#39; user has a role &#39;ADMIN&#39; but `hasRole(&#39;ADMIN&#39;)` resolves to false anyway I try it

My html:

    1.&lt;div sec:authentication=&quot;name&quot;&gt;&lt;/div&gt; &lt;!-- works fine --&gt;
    2.&lt;div sec:authentication=&quot;principal.authorities&quot;&gt;&lt;/div&gt; &lt;!-- works fine --&gt;

    3.&lt;div  sec:authorize=&quot;isAuthenticated()&quot; &gt;true&lt;/div&gt; &lt;!-- works fine --&gt;
    4.&lt;span th:text=&quot;${#authorization.expression(&#39;isAuthenticated()&#39;)}&quot;&gt;&lt;/span&gt; &lt;!-- works fine --&gt;

    5.&lt;div th:text=&quot;${#vars.role_admin}&quot;&gt;&lt;/div&gt; &lt;!--Works fine --&gt;
    6.&lt;div  sec:authorize=&quot;${hasRole(&#39;ADMIN&#39;)}&quot; &gt; IS ADMIN &lt;/div&gt; &lt;!-- Doesnt work --&gt;
    7.&lt;div  sec:authorize=&quot;${hasRole(#vars.role_admin)}&quot; &gt; IS ADMIN &lt;/div&gt; &lt;!-- Doesnt work --&gt;
    8.&lt;div th:text=&quot;${#authorization.expression(&#39;hasRole(&#39;&#39;ADMIN&#39;&#39;)&#39;)} &quot;&gt;&lt;/div&gt; &lt;!-- Doesnt work --&gt;
    9.&lt;div th:text=&quot;${#authorization.expression(&#39;hasRole(#vars.role_admin)&#39;)}&quot;&gt;&lt;/div&gt; &lt;!-- Doesnt work --&gt;

results in:

    1.admin
    2.[ADMIN]
    3.true
    4.true
    5.ADMIN
    6.&quot;prints nothing because hasRole(&#39;ADMIN&#39;) resolves to false&quot;
    7.&quot;prints nothing because hasRole(#vars.role_admin) resolves to false&quot;
    8.false
    9.false

I have enabled _use-expressions_ in my security.xml file

    &lt;security:http auto-config=&quot;true&quot; use-expressions=&quot;true&quot;&gt;

And also included the SpringSecurityDialect in my config

    &lt;bean id=&quot;templateEngine&quot;
          class=&quot;org.thymeleaf.spring4.SpringTemplateEngine&quot;&gt;
        &lt;property name=&quot;templateResolver&quot; ref=&quot;templateResolver&quot; /&gt;  
        &lt;property name=&quot;additionalDialects&quot;&gt;
            &lt;set&gt;
                &lt;bean class=&quot;org.thymeleaf.extras.springsecurity4.dialect.SpringSecurityDialect&quot; /&gt;
            &lt;/set&gt;
        &lt;/property&gt;      
    &lt;/bean&gt;

All the necessary dependencies in my pom.xml file

    

    &lt;!--Spring security--&gt; 
        &lt;dependency&gt;
            &lt;groupId&gt;org.springframework.security&lt;/groupId&gt;
            &lt;artifactId&gt;spring-security-core&lt;/artifactId&gt;
            &lt;version&gt;4.0.1.RELEASE&lt;/version&gt;
        &lt;/dependency&gt;
        &lt;dependency&gt;
            &lt;groupId&gt;org.springframework.security&lt;/groupId&gt;
            &lt;artifactId&gt;spring-security-web&lt;/artifactId&gt;
            &lt;version&gt;4.0.1.RELEASE&lt;/version&gt;
        &lt;/dependency&gt;
        &lt;dependency&gt;
            &lt;groupId&gt;org.springframework.security&lt;/groupId&gt;
            &lt;artifactId&gt;spring-security-config&lt;/artifactId&gt;
            &lt;version&gt;4.0.1.RELEASE&lt;/version&gt;
        &lt;/dependency&gt;        
        
        &lt;!--Thymeleaf Spring Security--&gt;
        &lt;dependency&gt;
            &lt;groupId&gt;org.thymeleaf.extras&lt;/groupId&gt;
            &lt;artifactId&gt;thymeleaf-extras-springsecurity4&lt;/artifactId&gt;
            &lt;version&gt;2.1.2.RELEASE&lt;/version&gt;
            &lt;scope&gt;compile&lt;/scope&gt;
        &lt;/dependency&gt;

Role.java

    @Entity
    @Table(name = &quot;roles&quot;)
    
        public class Role implements Serializable {
        
            @Id
            @Enumerated(EnumType.STRING)
            private RoleType name;
            //... getters, setters
        }

RoleType

    public enum RoleType {
    
        ADMIN 
    }

And `User`has a Set of `Role`s 

Why is `hasRole()` not working? 

I appreciate your help, thank you


**Workaround**
--------------

  `th:if=&quot;${#strings.contains(#authentication.principal.authorities,&#39;ADMIN&#39;)}&quot;`

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