Add Spring MVC form and binding example

This commit is contained in:
Alex Theedom 2016-11-26 17:43:54 +00:00
parent b846bcc35e
commit 5b738313e8
8 changed files with 339 additions and 0 deletions

99
spring-mvc-forms/pom.xml Normal file
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<?xml version="1.0"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<version>0.1-SNAPSHOT</version>
<artifactId>spring-mvc-forms</artifactId>
<name>spring-mvc-forms</name>
<packaging>war</packaging>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>${javax.servlet-api.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>${javax.servlet.jsp-api.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>${hibernate-validator.version}</version>
</dependency>
</dependencies>
<profiles>
<!-- Local -->
<profile>
<id>spring-mvc-forms</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<source>${maven-compiler-plugin.source}</source>
<target>${maven-compiler-plugin.source}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>${maven-war-plugin.version}</version>
<configuration>
<warSourceDirectory>src/main/webapp</warSourceDirectory>
<warName>spring-mvc-forms</warName>
<failOnMissingWebXml>false</failOnMissingWebXml>
<outputDirectory>${deploy-path}</outputDirectory>
</configuration>
</plugin>
</plugins>
</pluginManagement>
<finalName>spring-mvc-forms</finalName>
</build>
</profile>
</profiles>
<properties>
<springframework.version>4.0.6.RELEASE</springframework.version>
<maven-war-plugin.version>2.4</maven-war-plugin.version>
<jstl.version>1.2</jstl.version>
<javax.servlet.jsp-api.version>2.3.1</javax.servlet.jsp-api.version>
<javax.servlet-api.version>3.1.0</javax.servlet-api.version>
<maven-compiler-plugin.version>3.5.1</maven-compiler-plugin.version>
<maven-compiler-plugin.source>1.8</maven-compiler-plugin.source>
<hibernate-validator.version>5.1.1.Final</hibernate-validator.version>
<deploy-path>enter-location-of-server</deploy-path>
</properties>
</project>

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package com.baeldung.springmvcforms.configuration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
@Configuration
@EnableWebMvc
@ComponentScan(basePackages = "com.baeldung.springmvcforms")
class ApplicationConfiguration extends WebMvcConfigurerAdapter {
@Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
@Bean
public InternalResourceViewResolver jspViewResolver() {
InternalResourceViewResolver bean = new InternalResourceViewResolver();
bean.setPrefix("/WEB-INF/views/");
bean.setSuffix(".jsp");
return bean;
}
}

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package com.baeldung.springmvcforms.configuration;
import org.springframework.web.WebApplicationInitializer;
import org.springframework.web.context.ContextLoaderListener;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.servlet.DispatcherServlet;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRegistration;
public class WebInitializer implements WebApplicationInitializer {
public void onStartup(ServletContext container) throws ServletException {
AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext();
ctx.register(ApplicationConfiguration.class);
ctx.setServletContext(container);
// Manage the lifecycle of the root application context
container.addListener(new ContextLoaderListener(ctx));
ServletRegistration.Dynamic servlet = container.addServlet("dispatcher", new DispatcherServlet(ctx));
servlet.setLoadOnStartup(1);
servlet.addMapping("/");
}
// @Override
// public void onStartup(ServletContext container) {
// // Create the 'root' Spring application context
// AnnotationConfigWebApplicationContext rootContext = new AnnotationConfigWebApplicationContext();
// rootContext.register(ServiceConfig.class, JPAConfig.class, SecurityConfig.class);
//
// // Manage the lifecycle of the root application context
// container.addListener(new ContextLoaderListener(rootContext));
//
// // Create the dispatcher servlet's Spring application context
// AnnotationConfigWebApplicationContext dispatcherServlet = new AnnotationConfigWebApplicationContext();
// dispatcherServlet.register(MvcConfig.class);
//
// // Register and map the dispatcher servlet
// ServletRegistration.Dynamic dispatcher = container.addServlet("dispatcher", new DispatcherServlet(dispatcherServlet));
// dispatcher.setLoadOnStartup(1);
// dispatcher.addMapping("/");
//
// }
}

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package com.baeldung.springmvcforms.controller;
import com.baeldung.springmvcforms.domain.Employee;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.servlet.ModelAndView;
import javax.validation.Valid;
import java.util.HashMap;
import java.util.Map;
@Controller
public class EmployeeController {
Map<Long, Employee> employeeMap = new HashMap<>();
@RequestMapping(value = "/employee", method = RequestMethod.GET)
public ModelAndView showForm() {
return new ModelAndView("employeeHome", "employee", new Employee());
}
@RequestMapping(value = "/employee/{Id}", produces = { "application/json", "application/xml" }, method = RequestMethod.GET)
public @ResponseBody Employee getEmployeeById(@PathVariable final long Id) {
return employeeMap.get(Id);
}
@RequestMapping(value = "/addEmployee", method = RequestMethod.POST)
public String submit(@Valid @ModelAttribute("employee") final Employee employee, final BindingResult result, final ModelMap model) {
if (result.hasErrors()) {
return "error";
}
model.addAttribute("name", employee.getName());
model.addAttribute("contactNumber", employee.getContactNumber());
model.addAttribute("id", employee.getId());
employeeMap.put(employee.getId(), employee);
return "employeeView";
}
}

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package com.baeldung.springmvcforms.domain;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
public class Employee {
private long id;
@NotNull
@Size(min = 5)
private String name;
@NotNull
@Size(min = 7)
private String contactNumber;
public Employee() {
super();
}
public String getName() {
return name;
}
public void setName(final String name) {
this.name = name;
}
public long getId() {
return id;
}
public void setId(final long id) {
this.id = id;
}
public String getContactNumber() {
return contactNumber;
}
public void setContactNumber(final String contactNumber) {
this.contactNumber = contactNumber;
}
}

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<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Form Example - Register an Employee</title>
</head>
<body>
<h3>Welcome, Enter The Employee Details</h3>
<form:form method="POST" action="${pageContext.request.contextPath}/addEmployee" modelAttribute="employee">
<table>
<tr>
<td><form:label path="name">Name</form:label></td>
<td><form:input path="name" /></td>
</tr>
<tr>
<td><form:label path="id">Id</form:label></td>
<td><form:input path="id" /></td>
</tr>
<tr>
<td><form:label path="contactNumber">Contact Number</form:label></td>
<td><form:input path="contactNumber" /></td>
</tr>
<tr>
<td><input type="submit" value="Submit" /></td>
</tr>
</table>
</form:form>
</body>
</html>

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<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<html>
<head>
<title>Spring MVC Form Handling</title>
</head>
<body>
<h2>Submitted Employee Information</h2>
<table>
<tr>
<td>Name :</td>
<td>${name}</td>
</tr>
<tr>
<td>ID :</td>
<td>${id}</td>
</tr>
<tr>
<td>Contact Number :</td>
<td>${contactNumber}</td>
</tr>
</table>
</body>
</html>

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<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>SpringMVCExample</title>
</head>
<body>
<h3>Pleas enter the correct details</h3>
<table>
<tr>
<td><a href="employee">Retry</a></td>
</tr>
</table>
</body>
</html>