Java developers often rely on examples to learn Spring framework. Simple examples are often a key learning resource. There are many Spring MVC HelloWorld applications. However, most of them are outdated (do not integrate Maven, use old version of Spring, etc) or not complete (missing key steps or file hierarchy view). Therefore can not lead to a perfectly working Hello World. In this article, I will show steps for creating a Spring MVC HelloWorld application using Maven in Eclipse. All files’s content and locations are illustrated.
Prerequisite
- Windows 7, Java 7, Eclipse Kepler Java EE
- Tomcat 7 (How to install Tomcat 7 on Eclipse)
Step 1: Create a Maven Project
Create a Maven project by following the following steps:
Select “webapp”.
GroupId identifies the project uniquely across all projects, so we need to enforce a naming schema. ArtifactId is the name of the jar without version. For more information about each field, check out the official page about maven naming convention. (You can do this later. It makes more sense, when you complete the project first.)
After the Maven project is created, the project in the Navigator view should look like the following:
As shown above, there is an error marked with red. If you open index.jsp file, you can see the error message:
The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path
To fix the problem, right click on project -> Properties -> Java Build Path -> Add Library…-> Server Runtime -> Apache Tomcat -> Finish.
Step 2: Configure Spring
To make a Spring web application, we need to configure several xml files. First of all, we need to add Spring dependencies. Edit the automatically generated pom.xml file to be the following:
pom.xml
<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>com.programcreek</groupId> <artifactId>HelloWorld</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>HelloWorld Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <spring.version>4.0.1.RELEASE</spring.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <!-- Spring dependencies --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> </dependencies> <build> <finalName>HelloWorld</finalName> </build> </project> |
Edit the default web.xml.
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>Archetype Created Web Application</display-name> <servlet> <servlet-name>dispatcher</servlet-name> <servlet-class> org.springframework.web.servlet.DispatcherServlet </servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcher</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/dispatcher-servlet.xml</param-value> </context-param> <listener> <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class> </listener> </web-app> |
Create an xml file “dispatcher-servlet.xml” under the same directory of web.xml.
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <context:component-scan base-package="com.programcreek.helloworld.controller" /> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix"> <value>/WEB-INF/views/</value> </property> <property name="suffix"> <value>.jsp</value> </property> </bean> </beans> |
In the above xml file, base-package
specifies the package of the controllers. prefix
specifies the directory of views, and it is set to be /WEB-INF/views/
, which means views
directory should be created under WEB-INF
. suffix
specifies the file extension of views. For example, given a view “helloworld”, the view will be located as /WEB-INF/views/helloworld.jsp. You can figure this out later in Step 3.
Step 3: Create Spring Controller and View
Create the HelloWorldController
under src/main/java/ directory.
HelloWorldController.java
package com.programcreek.helloworld.controller; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.servlet.ModelAndView; @Controller public class HelloWorldController { String message = "Welcome to Spring MVC!"; @RequestMapping("/hello") public ModelAndView showMessage( @RequestParam(value = "name", required = false, defaultValue = "World") String name) { System.out.println("in controller"); ModelAndView mv = new ModelAndView("helloworld"); mv.addObject("message", message); mv.addObject("name", name); return mv; } } |
In the code above, @RequestMapping
annotation maps web requests onto specific handler classes and/or handler methods, in this case, showMessage()
. It provides a consistent style between Servlet and Portlet environments, with the semantics adapting to the concrete environment.
RequestParam
indicates that a method parameter should be bound to a web request parameter. In this case, we also make it not required and give it a default value.
new ModelAndView("helloworld")
determines that helloworld
is the target view.
index.jsp
<%@ 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>Spring 4 MVC - HelloWorld Index Page</title> </head> <body> <center> <h2>Hello World</h2> <h3> <a href="hello?name=Eric">Click Here</a> </h3> </center> </body> </html> |
Create the helloworld.jsp file under /WEB-INF/views/ directory.
helloworld.jsp
<%@ 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>Spring 4 MVC -HelloWorld</title> </head> <body> <center> <h2>Hello World</h2> <h2> ${message} ${name} </h2> </center> </body> </html> |
${variable}
will be converted to the value of the variable.
Final Navigator view of the project:
Step 4: Run on Server
Right click the project and select Run As –> Run on Server.
I had same issue, I added to the head of jsp file then it worked.
(Sorry, some “important codes” lost after post, so try again)
I’m beginner to SpringMVC and meet following two questions and resolved:
——–(questions)———-
1. See the console “in controller” in Eclipse, but got HTTP Status 404 in my browser
2. Still show ${message} and ${name} (jsp Expression Language notwork)
——–(solutions)———-
1. Wrong folder name:
In my “dispatcher-servlet.xml”
/WEB-INF/views/
but I named my folder under WEB-INF “view”,
so just resolved by changing the “views” in tag to “view”.
2. Add to helloword.jsp
In the first line of “helloword.jsp”, add
You can see more information here:
http://www.codejava.net/java-ee/jsp/activating-and-deactivating-el-evaluation-in-jsp
—————————–
Hope it helps
I’m beginner to SpringMVC and meet following two questions and resolved:
——–(questions)———-
1. HTTP Status 404
2. still show ${message} and ${name} (jsp Expression Language notwork)
——–(solutions)———-
1. Wrong folder name:
In my “dispatcher-servlet.xml”
/WEB-INF/views/
but I named my folder under WEB-INF “view”,
so just resolved by changing the “views” in tag to “view”.
2. Add to helloword.jsp
In the first line of “helloword.jsp”, add
You can see more information here:
http://www.codejava.net/java-ee/jsp/activating-and-deactivating-el-evaluation-in-jsp
—————————–
Hope it helps
When the model values passed in the controller are not visible on the generated page, thus you get
${message} ${name} instead of “Welcome to Spring MVC! Ericâ€,
it might be that your web.xml is not of the proper version. In my case it was version 2.3 (the web.xml was created automatically by eclipse) and had to upgrade it to version 3.
(note, I am using Spring MVC version 4.3.11 and Tomcat version 8.5.20).
My web.xml now begins with:
Excellent Article! Author explains the steps so well. Keep up the good work. I look forward to more such articles from you. It worked first time, I tried and taught me the basics.
Regards
Kalyan
Very useful tutorial for beginners.Thanks! 🙂
Thank you for your tutorial , this is my first maven project with success 🙂
check pom.xml
https://uploads.disquscdn.com/images/d5a57053f42dcee6e1120de23b49a6a32b8b8c812278b8200e699468b40f1f3a.png
Can you help me, I got errror
Thanks for posting this useful content, Let me share this, . CCNA training in pune
Thanks for posting this useful content, Good to know about new things here, Let me share this, . CCNA training in pune
/WEB-INF/views/
.jsp
Change this dispatcher-servlet.xml to this
Thanks for the post. A quickstarter to understand basic examples :-).
Thanks again !!
Thank you very much. It worked well
It’s very useful,thanks.
thanks
-1:-1 31:3 The declaration for the entity “HTML.Version” must end with ‘>’. does anyone knows how to solve this ?
Thank you very much. Very informative
nice tutorial!
Getting This error
Tomcat 8
quick response would be appriciated
Jan 27, 2016 4:48:47 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [dispatcher] in context with path [/SPRINGMVC1] threw exception [Servlet execution threw an exception] with root cause
java.lang.NoSuchMethodError: org.springframework.http.HttpMethod.matches(Ljava/lang/String;)Z
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:841)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:521)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1096)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:674)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
Getting this error.. any help is appreciated.
HTTP Status 404 – /HelloSpring/
type Status report
message /HelloSpring/
description The requested resource is not available.
Apache Tomcat/8.0.28
i know this is a little old one but i am getting error on ${message} ${name}. could someone help out please.
thanks
well explain and must visit Spring MVC Example
when i build tomcat,the tomcat localhost log:Error configuring application listener of class org.springframework.web.context.ContextLoaderListener
${variable} is not converted to the value of the variable in my case. Am I missing something? I followed all steps carefully.. Can you please help?
When I create the Maven project in Eclipse, the .classpath xml file and .project xml files are not generated. Also I this error. Which spring version did you write in pom.xml?
Pls help
When I create the Maven project in Eclipse, the .classpath xml file and .project xml files are not generated. Also I this error. Pls help.
I have performed all the steps as suggested but, I am getting page not found error when I click on the link which goes to helloworld.jsp. Actually, it gets navigated to the helloworld.jsp page, but, shows the following error on console:
Servlet /HelloWorldSpring threw load() exception
java.lang.NoSuchMethodError: org.springframework.core.convert.converter.ConverterRegistry.addConverter(Ljava/lang/Class;Ljava/lang/Class;Lorg/springframework/core/convert/converter/Converter;)V
Kindly help.
Awesome work dude…but u skipped first time server setup part which took a lot of time of mine…anyways great work !!!
Thanks.
When I am trying to work this initially I met some problems. But once made correct entries in pom.xml file, this example is working perfectly.
Important point. : you are missing to add spring context enteries in the pom.xml file. Please add that.
Final pom file I have used is,
4.0.0
com.madrone.lmsapp
lmsapp
war
0.0.1-SNAPSHOT
lmsapp Maven Webapp
http://maven.apache.org
junit
junit
3.8.1
test
org.springframework
spring-core
4.1.4.RELEASE
org.springframework
spring-web
4.1.4.RELEASE
org.springframework
spring-webmvc
4.1.4.RELEASE
org.springframework
spring-context
4.1.4.RELEASE
lmsapp
Thanks a lot for the help..ya web.xml that josh mentioned is needed to rectify.
I solved. My tomcat setting was wrong, I attach resources that I used.
http://stackoverflow.com/questions/2280064/tomcat-started-in-eclipse-but-unable-to-connect-to-http-localhost8085
http://stackoverflow.com/questions/4919846/why-tomcat-server-location-property-is-greyed-in-eclipse
HTTP Status 404 – /HelloWorld/
type Status report
message /HelloWorld/
description The requested resource is not available.
Pivotal tc Runtime 3.0.2.SR2/8.0.15.B.RELEASE
Please help me to resolve this problem.
Superb article to get started with Spring and Maven.
Thank You… Help full for me….
It’s really useful to me thanks …
I think you should configue server about tomcat….
Excellent tutorial moving from Netbeans to Eclipse. Very good starting point. Great work.
Hello Sebastian
you might be using an old version of JSP 1.2 , please use JSP 2.0 ( check declaration in web.xml )
or
use following directive in jsp
Hi I run it on server and i get : ${message} ${name} instead of “Welcome to Spring MVC! Eric” what could be the problem here ?
HTTP Status 404 – /HelloWorld/
type Status report
message /HelloWorld/
description The requested resource is not available.
Pivotal tc Runtime 3.0.2.SR2/8.0.15.B.RELEASE
Please help me to resolve this problem.
this post is still a nice tutorial for me, thanks
src/main/java is not available in my project how to deal with this problem?
Hi Chris,
I guess you didn’t set dispatcher-servlet.xml correctly. If you make a project with your own name, please modify the with your package to link the HellowWorldController.java.
Best regards.
Hello, I get error
No mapping found for HTTP request with URI [/WebDemo/hello] in DispatcherServlet with name ‘dispatcher’
whats wrong?
pls check –
http://stackoverflow.com/questions/4166882/run-on-server-option-not-appearing-in-eclipse
Nice Tutorial. Really helpful.Thanks
When I right click on project run on server is not enabled. PLease help
Thanks for a useful post.
But in my case, I had to remove id=”WebApp_ID” from web.xml so that my Geronimo server run with name HelloWorld, not WebApp_ID. 😉
Nice tutorial but you shouldn’t have to worry about these types of
things anymore… it’s time consuming. Use the Jigy Generator to create
your project with Spring completely configured for you. Jigy
Generator reverse engineers your database to create all your DAO’s,
domain objects and validators… Plus you have certain things that
just work out of the box like login, authentication, file upload etc.
Jigy Generator can be downloaded at http://www.getjigy.com
Thanks for your help.
Thanks a lot! This was really usefull!
Please note that your tags are out of order in the web.xml file you specify, which causes Eclipse to complain. To get it to work, I had to re-order them according to the DTD (http://svn.apache.org/repos/asf/beehive/trunk/netui/external/struts/web-app_2_3.dtd) to look like this:
Archetype Created Web Application
contextConfigLocation
/WEB-INF/dispatcher-servlet.xml
org.springframework.web.context.ContextLoaderListener
dispatcher
org.springframework.web.servlet.DispatcherServlet
1
dispatcher
/