<dependency>    <groupId>javax.validation</groupId>    <artifactId>validation-api</artifactId>    <version>1.1.0.Final</version></dependency><dependency>    <groupId>org.hibernate</groupId>    <artifactId>hibernate-validator</artifactId>    <version>5.0.1.Final</version></dependency>

<mvc:annotation-driven />

public class Subscriber {     @Size(min=2, max=30)     private String name;         @NotEmpty @Email    private String email;         @NotNull @Min(13) @Max(110)    private Integer age;         @Size(min=10)    private String phone;         @NotNull    private Gender gender;         @DateTimeFormat(pattern="MM/dd/yyyy")    @NotNull @Past    private Date birthday;     ...}

@Controllerpublic class FormController {         ...         @RequestMapping(value="form", method=RequestMethod.POST)    public String submitForm(@Valid Subscriber subscriber, BindingResult result, Model m) {        if(result.hasErrors()) {            return "formPage";        }                 m.addAttribute("message", "Successfully saved person: " + subscriber.toString());        return "formPage";    }}

<form:form action="/form" modelattribute="subscriber">    <label for="nameInput">Name: </label>    <form:input path="name" id="nameInput"></form:input>    <form:errors path="name" cssclass="error"></form:errors>    <br />         <label for="ageInput">Age: </label>    <form:input path="age" id="ageInput"></form:input>    <form:errors path="age" cssclass="error"></form:errors>    <br />         <label for="phoneInput">Phone: </label>    <form:input path="phone" id="phoneInput"></form:input>    <form:errors path="phone" cssclass="error"></form:errors>    <br />         <label for="emailInput">Email: </label>    <form:input path="email" id="emailInput"></form:input>    <form:errors path="email" cssclass="error"></form:errors>    <br />         <label for="birthdayInput">Birthday: </label>    <form:input path="birthday" id="birthdayInput" placeholder="MM/DD/YYYY">    <form:errors path="birthday" cssclass="error"></form:errors>    <br />         <label for="genderOptions">Gender: </label>    <form:select path="gender" id="genderOptions">        <form:option value="">Select Gender</form:option>        <form:option value="MALE">Male</form:option>        <form:option value="FEMALE">Female</form:option>    </form:select>    <form:errors path="gender" cssclass="error"></form:errors>    <br />         <label for="newsletterCheckbox">Newsletter? </label>    <form:checkbox path="receiveNewsletter" id="newsletterCheckbox"></form:checkbox>    <form:errors path="receiveNewsletter" cssclass="error"></form:errors>    <br /><br />    <input type="submit" value="Submit" /></form:input></form:form>

@Size(min=10, message="Phone number must be at least 10 characters")

<bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">    <property name="basename" value="messages"/></bean>

{ValidationClass}.{modelObjectName}.{field}

Size=the {0} field must be between {2} and {1} characters longSize.subscriber.name=Name must be between {2} and {1} charactersSize.subscriber.phone=Phone must be at least {2} characters Min.subscriber.age=You must be older than {1}Max.subscriber.age= Sorry, you have to be younger than {1} Email=Email address not validPast=Date must be in the past NotEmpty=Field cannot be left blankNotNull=Field cannot be left blank typeMismatch=Invalid formatmethodInvocation.myRequest.amount=Invalid format

For example, if the age field of our “subscriber” model object fails the “NotNull” validation, the “NotNull.subscriber.age” message would be looked up. If the message isn’t found, “NotNull.subscriber” would be looked for. Finally, if not found, “NotNull” message would be looked for. If that also isn’t found, the default message (what we saw above) would be rendered.