Passing value from controller to html in spring

Question

Hello I have a simple web page where I have a button and a text near to button. I need to change text when button clicked and get the new text from code.

This is con

Answer 1

Change

?????

To

${stream}
 OR 
 

How it is working?

You can access variables value by ${key}.

Example

model.addAttribute("key", value);   

Get value by ${key} in HTML

In Thymeleaf, these model attributes (or context variables in Thymeleaf jargon) can be accessed with the following syntax: ${attributeName}, where attributeName in our case is stream. This is a Spring EL expression. In short, Spring EL (Spring Expression Language) is a language that supports querying and manipulating an object graph at runtime.

UPDATE

The th:field attribute can be used on input, select, or, textarea.

Replace

?????

with

OR

`

OR

Also try

[[${stream}]]

;

/>

Thymeleaf Document Thymeleaf Document Inputs

---

UPDATE 2

Get value from Thymeleaf to Spring Boot

   
   Send


    @GetMapping("/send")
    public String send(@RequestParam(name="doc", required = false) String doc) {
        //change required = false as per requirement
        System.out.println("Doc: "+doc);
        return "textarea-input";
    }

Note: use "th:field" for Entity/Model