Invalid controller configuration at Spring MVC 4

Question

I am new to Spring framework. I would to develop a simple web-app that displays a hello.jsp content based on url "/greeting.html". But now, it gives me 404 error. What am I doing wrong?

Here is the github repo for my project (this project was created under Eclipse STS): https://github.com/terancet/EventTracker

Here is my HelloController class

@Controller
public class HelloController {
    @RequestMapping(value = "/greeting")
    public String sayHello(Model model) {
        model.addAttribute("greeting", "Hello World");

        return "hello.jsp";
    }

}

Here is web.xml

<servlet>
        <servlet-name>springDispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

        <init-param>
            <param-name>contextClass</param-name>
            <param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContext</param-value>
        </init-param>


        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>com.pluralsight.WebConfig</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <!-- Map all requests to the DispatcherServlet for handling -->
    <servlet-mapping>
        <servlet-name>springDispatcherServlet</servlet-name>
        <url-pattern>*.html</url-pattern>
    </servlet-mapping>

Here is a project structure:

project structure

Could you replace `@RequestMapping(value = "/greeting")` with `@RequestMapping(value = "/greeting.html")` and try? — barunsthakur, Jun 21 '15 at 11:19
My full url - http://localhost:8080/EvenTracker/greeting.html . I have replaced with the "/greeting.html" and still there is 404 error. — mr.M, Jun 21 '15 at 11:27
I have updated with the link to repo: https://github.com/terancet/EventTracker — mr.M, Jun 21 '15 at 15:27
Since you are using spring boot, it would ideally run under root. So trying hitting with `localhost:8080/greeting.html` — minion, Jun 24 '15 at 21:04

score 1 · Answer 1 · answered Jun 22 '15 at 06:07

1

In your WebConfig you have the following

@Bean
public InternalResourceViewResolver getInternalResourceViewResolver() {
    InternalResourceViewResolver resolver = new InternalResourceViewResolver();

    resolver.setPrefix("/WEB-INF/jsp/");
    resolver.setSuffix(".jsp");

    return resolver;
}

Your controller is returning hello.jp. This is passed on the to InternalResourceViewResolver to be resolved to a view. It will create an path of /WEB-INF/jsp/hello.jsp.jsp and next it forwards to this path.

First make your controller return hello instead of hello.jsp. Second create a jsp directory inside the WEB-INF directory and move your hello.jsp there. Third restart.

answered Jun 22 '15 at 06:07

M. Deinum

115,695
22
220
224

Thank you for your comment. Made the corrections as you have suggested, but still though, I am receiving a 404 error while accessing the following url path: http://localhost:8080/EventTracker/greeting.html – mr.M Jun 22 '15 at 09:10
1

How is your application deployed? As root i.e. `/` or `/EventTracker`. Also URLs are case sensitive... Also what you posted here doesn't match what you have in your repo, which is using spring boot... Next to that it is also using `forward:` instead of returning a view name. So not sure what you posted here but it doesn't match what you link to. (And preferably you should include everything in your question instead of letting people search through github for information). – M. Deinum Jun 22 '15 at 09:11

Selwyn · Accepted Answer · 2015-06-24T20:42:37.363

add a log4j.xml or log4j.properties into the

src/main/resources

folder (it will automatically be detected). Then when you start up the server it will tell you exactly where the url mapping is for your controller via info log. This is important not to only verify the mapping url but to make sure it is actually being mapped:

Also, in STS/Eclipse if you:

right click on the project -> click properties -> click select 'Web Project Settings'

enter image description here

by default that is where the url path is derived. So if the context-root value in there is: 'EventTracker' then your full url request will be (assuming a '.jsp' suffix is set as others have indicated in your resolver):

http://localhost/EventTracker/greetings

Sample log4j.xml from 1 of my projects:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration PUBLIC "-//APACHE//DTD LOG4J 1.2//EN" "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/"> 

    <!-- Appenders -->
    <appender name="console" class="org.apache.log4j.ConsoleAppender">
        <layout class="org.apache.log4j.PatternLayout">
           <param name="ConversionPattern" value="%-5p:%d{yyyyMMdd HH:mm:ss} %t %c - %m%n"/>
        </layout>
    </appender>

    <appender name="fileAppender" class="org.apache.log4j.FileAppender">
       <param name="File" value="c:/tmp/my-app.log"/>
       <param name="MaxFileSize" value="10MB"/>
       <param name="MaxBackupIndex" value="50"/>

       <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%-5p:%d{yyyyMMdd HH:mm:ss} %t %c - %m%n" />
        </layout>
    </appender>

    <!-- 3rdparty Loggers -->
    <logger name="org.springframework.core">
        <level value="info" />
    </logger>

    <logger name="org.springframework.beans">
        <level value="info" />
    </logger>

    <logger name="org.springframework.context">
        <level value="info" />
    </logger>

    <logger name="org.springframework.web">
        <level value="debug" />
    </logger>

    <logger name="org.springframework.webflow">
        <level value="debug" />
    </logger> 


    <!-- Root Logger -->
    <root>
        <priority value="info" />
        <appender-ref ref="console" />
        <appender-ref ref="fileAppender"/>
    </root>


</log4j:configuration>

log info:

INFO : org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Mapped "{[/userManagement/getUser],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.assessme.com.entity.User org.assessme.com.controller.UserManagementController.data(java.util.Locale,org.springframework.ui.Model)

Thank you for a hint (about log4j). I have made a simple output to a console and it complains me that there is no controller to request mapping at dispatcher. However, I have made an explicit mapping via @Request annotation. How to fix this problem? — mr.M, Jun 24 '15 at 20:28

Kyrylo Semenko · Answer 3 · 2015-06-21T11:56:08.053

0

It could be typo in application name. Please try localhost:8080/EventTracker/greeting - EventTracker with Event

And try to change url-pattern to /*

edited Jun 21 '15 at 11:56

answered Jun 21 '15 at 11:51

Kyrylo Semenko

866
9
11

But, if I change to /* all get requests will be mapped to hello.jsp. – mr.M Jun 21 '15 at 12:09
tried to do it and it didnt help. when I type the following url: http://localhost:8080/EventTracker/greeting.html the 404 error appears ... – mr.M Jun 21 '15 at 13:34

Invalid controller configuration at Spring MVC 4

3 Answers3