@Notnull and @min @max bean validation is not working?

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<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>  
<!DOCTYPE html>
<html>
<head>

<title>Customer Registration Form</title>

</head>
<style>
	.error {
		color:red;
	}
</style>
<body>
	Fill out the form.Asterisk(*) means required.
	<br><br>
	<form:form action="processForm" modelAttribute="customer">
		First name: <form:input path="firstName"/>
		<br><br>
	
		Last name(*):  <form:input path="lastName"/>
		<form:errors path="lastName" cssClass="error"/>
		
		<br><br>
		Free passes: <form:input path="freePasses" />
		<form:errors path="freePasses" cssClass="error" />
		<br><br>
		<input type="submit" value="Submit" />
	
	</form:form>
</body>
</html>

public class Customer {
	private String firstName;
	
	@NotNull(message="is required")
	@Size(min=1, message="is required")
	private String lastName;
	
	@Min(value=0,message="must be greater than or equal to zero")
	@Max(value=10,message="must be less than or equal to ten")
	private int freePasses;
	
	public String getFirstName() {
		return firstName;
	}

	public void setFirstName(String firstName) {
		this.firstName = firstName;
	}

	public String getLastName() {
		return lastName;
	}

	public void setLastName(String lastName) {
		this.lastName = lastName;
	}

	public int getFreePasses() {
		return freePasses;
	}

	public void setFreePasses(int freePasses) {
		this.freePasses = freePasses;
	}

	
}

What I have tried:

I have used this code only I have tried many ways but can't see the error messages what to do? I also imported the required libraries and called that and also passed getter and setter too but still cant see errors

Posted 26-Jun-21 7:12am

Aakash V

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