How to set the value of an html input field in java?

Question

I have two files. An .html that contains a <input type="text"> and a .java that contains java methods. In a java method I need to set the value of that html input. What is the code to do that?

Here is the code I have.

View

<form action="personform" method="post" th:object="${personBind}">
<input type="text" name="name" th:field="*{name}">
<input type="text" name="year" th:field="*{year}">

Spring MVC Controller

ModelAndView modelAndView = new ModelAndView("Person.html");
modelAndView.addObject("personBind", person);
return modelAndView;

The value in the name field comes from the person object in the modelAndView. That works fine. But the value for the year field is not in the person object. I want to set the value in the year field coming from a different source. What code should I write to set the value in the year field?

Answer 1

I found the answer after some tests.

This is how the code I posted on the question needs to be updated.

View

<form action="personform" method="post" th:object="${personBind}">
<input type="text" name="name" th:field="*{name}">
<input type="text" name="year" th:value="${yearBind}">

Controller

ModelAndView modelAndView = new ModelAndView("Person.html");
modelAndView.addObject("personBind", person);
modelAndView.addObject("yearBind", "2020");
return modelAndView;

Note it's a th:value for the year instead of a th:field.