Kiểm tra tính hợp lệ của dữ liệu đầu vào form Spring Web MVC bởi Hibernate Validator

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

<modelVersion>4.0.0</modelVersion>
<groupId>vn.smartJob.demoSpring</groupId>
<artifactId>beanvalidation</artifactId>
<packaging>war</packaging>
<version>1.0.0-SNAPSHOT</version>

<name>Spring Web MVC - Hibernate Validator SmartJob.vn</name>
<url>https://smartjob.vn/</url>

<dependencies>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.2.6.RELEASE</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.2.6.RELEASE</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.2.6.RELEASE</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.2.6.RELEASE</version>
</dependency>

<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>5.2.4.Final</version>
</dependency>

</dependencies>

<build>
<finalName>beanvalidation</finalName>
</build>

</project>

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">

<context:component-scan base-package="vn.smartjob.demospring"/>
<context:annotation-config/>
<mvc:annotation-driven validator="validator" />

<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/" />
<property name="suffix" value=".jsp" />
</bean>

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

<bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean">
<property name="validationMessageSource" ref="messageSource"/>
</bean>


</beans>

package vn.smartjob.demospring.domain;

import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import java.math.BigDecimal;
import java.util.Date;

public class Job {

@Size(min = 32, max = 256)
@NotNull
String title;

@NotNull
@Size(max = 256)
String company;

@NotNull
String companyAddress;

@NotNull
@Size(min = 128)
String content;

@NotNull
Date startDate;

@NotNull
Date endDate;

@NotNull
BigDecimal salary;

@NotNull
Date createDate;


public String getTitle() {
return title;
}

public void setTitle(String title) {
this.title = title;
}

public String getCompany() {
return company;
}

public void setCompany(String company) {
this.company = company;
}

public String getCompanyAddress() {
return companyAddress;
}

public void setCompanyAddress(String companyAddress) {
this.companyAddress = companyAddress;
}

public String getContent() {
return content;
}

public void setContent(String content) {
this.content = content;
}

public Date getStartDate() {
return startDate;
}

public void setStartDate(Date startDate) {
this.startDate = startDate;
}

public Date getEndDate() {
return endDate;
}

public void setEndDate(Date endDate) {
this.endDate = endDate;
}

public BigDecimal getSalary() {
return salary;
}

public void setSalary(BigDecimal salary) {
this.salary = salary;
}

public Date getCreateDate() {
return createDate;
}

public void setCreateDate(Date createDate) {
this.createDate = createDate;
}

}

package vn.smartjob.demospring.controller;

import vn.smartjob.demospring.domain.Job;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class JobController {

@RequestMapping(value = "/form")
public ModelAndView job() {
return new ModelAndView("addJob", "job", new Job());
}

@RequestMapping(value = "/result", method = RequestMethod.POST)
public ModelAndView processJob(Job job, BindingResult result) {
ModelAndView modelAndView = new ModelAndView();
modelAndView.addObject("j", job);
if (result.hasErrors()) {
modelAndView.setViewName("addJob");
} else {
modelAndView.setViewName("resultJob");
}
return modelAndView;
}

}

<%@ page contentType="text/html;charset=UTF-8" %>
<%@taglib prefix="mvc" uri="http://www.springframework.org/tags/form" %>


<html>
<head>
<title>Thêm công việc mới</title>
<style type="text/css">
.error {
background-color: #f00;
}
table{
width: 600px;
background-color: lightblue;
}
td{
width: 300px;
}
</style>


</head>
<body>

<h2>Thêm công việc mới</h2>

<mvc:form modelAttribute="job" action="result.mvc">
<table>
<tr>
<td><mvc:label path="title">Tiêu đề công việc</mvc:label></td>
<td><mvc:input path="title" cssErrorClass="error"/></td>
<td><mvc:errors path="title"/></td>
</tr>
<tr>
<td><mvc:label path="company">Công ty</mvc:label></td>
<td><mvc:input path="company" cssErrorClass="error"/></td>
<td><mvc:errors path="company"/></td>
</tr>
<tr>
<td><mvc:label path="companyAddress">Địa chỉ làm việc</mvc:label></td>
<td><mvc:input path="companyAddress" cssErrorClass="error"/></td>
<td><mvc:errors path="companyAddress"/></td>
<td></td>
</tr>
<tr>
<td><mvc:label path="content">Nội dung tuyển dụng</mvc:label></td>
<td><mvc:textarea path="content" cssErrorClass="error"/></td>
<td><mvc:errors path="content"/></td>
</tr>
<tr>
<td><mvc:label path="salary">Mức lương</mvc:label></td>
<td><mvc:input path="salary" cssErrorClass="error"/></td>
<td><mvc:errors path="salary"/></td>
</tr>

<tr>
<td><mvc:label path="startDate">Ngày bắt đầu đăng tin (mm/dd/yyyy)</mvc:label></td>
<td><mvc:input path="startDate" cssErrorClass="error"/></td>
<td><mvc:errors path="startDate"/></td>
</tr>

<tr>
<td><mvc:label path="endDate">Ngày gỡ bỏ tin (mm/dd/yyyy)</mvc:label></td>
<td><mvc:input path="endDate" cssErrorClass="error"/></td>
<td><mvc:errors path="endDate"/></td>
</tr>
<tr>
<td colspan="3">
<input type="submit" value="Gửi">
</td>
</tr>
</table>
</mvc:form>

</body>
</html>

<%@ page contentType="text/html;charset=UTF-8" %>
<%@taglib prefix="mvc" uri="http://www.springframework.org/tags/form" %>

<html>
<head>
<title>Kết quả</title>
<style type="text/css">
.error {
background-color: #f00;
}
table{
width: 600px;
background-color: lightblue;
}
td{
width: 300px;
}
</style>
</head>
<body>

<h2>Nội dung công việc đã gửi</h2>
<table>
<tr>
<td>Tiêu đề công việc</td>
<td>${j.title}</td>
</tr>
<tr>
<td>Công ty</td>
<td>${j.company}</td>
</tr>
<tr>
<td>Địa chỉ làm việc</td>
<td>${j.companyAddress}</td>
</tr>
<tr>
<td>Nội dung</td>
<td>${j.content}</td>
</tr>
<tr>
<td>Mức lương</td>
<td>${j.salary}</td>
</tr>
<tr>
<td>Ngày bắt đầu đăng tin</td>
<td>${j.startDate}</td>
</tr>
<tr>
<td>Ngày gỡ bỏ tin</td>
<td>${j.endDate}</td>
</tr>
</table>
</body>
</html>