Tomcat / Spring integration returning 404

4
votes

I'm having a similar issue to HTTP Status 404 on Spring 3.1 MVC app

But I have not made the same mistakes as that poster did, yet I'm still getting a 404.

web.xml file:

<?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"
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee     http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">

<display-name>Test</display-name>

<welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
</welcome-file-list>

<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>

<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>

I am able to load index.jsp but not an actual controller.

dispatcher-servlet.xml file:

<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" 
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd">

<!-- enable Spring’s component scanning -->
<context:component-scan base-package="com.test" />

<!-- process the @RequestMapping annotations at the class level -->
<bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />

<!-- process the @RequestMapping annotations at the method level -->
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />

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

Controller

package com.test.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.ui.Model;

@Controller
public class BenchController {

@RequestMapping(value = "/bench", method = RequestMethod.GET)
@ResponseBody
public String welcome(Model model) {
  return "yo";
}

}

I am able to go to localhost:8080/Test/index.jsp but localhost:8080/Test/bench returns a 404.

I am using eclipse, if that helps.

EDIT 1:

This is the logging.properties. I can't find any of the logs apart from out log.

handlers = 1catalina.org.apache.juli.FileHandler, 2localhost.org.apache.juli.FileHandler, java.util.logging.ConsoleHandler

.handlers = 1catalina.org.apache.juli.FileHandler, java.util.logging.ConsoleHandler

############################################################
# Handler specific properties.
# Describes specific configuration info for Handlers.
############################################################

1catalina.org.apache.juli.FileHandler.level = FINE
1catalina.org.apache.juli.FileHandler.directory = ${catalina.base}/logs
1catalina.org.apache.juli.FileHandler.prefix = catalina.

2localhost.org.apache.juli.FileHandler.level = FINE
2localhost.org.apache.juli.FileHandler.directory = ${catalina.base}/logs
2localhost.org.apache.juli.FileHandler.prefix = localhost.

java.util.logging.ConsoleHandler.level = FINE
java.util.logging.ConsoleHandler.formatter = java.util.logging.SimpleFormatter

############################################################
# Facility specific properties.
# Provides extra control for each logger.
############################################################

org.apache.catalina.core.ContainerBase.[Catalina].[localhost].level = INFO
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].handlers = 2localhost.org.apache.juli.FileHandler

# For example, set the com.xyz.foo logger to only log SEVERE
# messages:
#org.apache.catalina.startup.ContextConfig.level = FINE
#org.apache.catalina.startup.HostConfig.level = FINE
#org.apache.catalina.session.ManagerBase.level = FINE
#org.apache.catalina.core.AprLifecycleListener.level=FINE

Interesting enough, I'm not sure where catalina.base variable is being defined.

EDIT 2:

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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.test</groupId>
  <artifactId>Test</artifactId>
  <version>0.1</version>
  <packaging>war</packaging>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <spring.version>3.1.0.RELEASE</spring.version>
  </properties>
  <build>
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>2.3.2</version>
        <configuration>
      <source>1.6</source>
          <target>1.6</target>
        </configuration>
      </plugin>
      <plugin>            
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-war-plugin</artifactId>
        <configuration>
          <webXml>/WebContent/WEB-INF/web.xml</webXml>
        </configuration>
      </plugin>
    </plugins>
  </build>

  <dependencies>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context-support</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>1.2.16</version>
    </dependency>
  </dependencies>
</project>

I don't see log4j in my dependency tree even though it's in my pom file.

EDIT 3:

Here's how I created my project in eclipse:

  1. New Maven Project (m2 eclipse plugin)
  2. I selected Simple Project
  3. Filled out group/artificat id and selected war as my packaging
  4. I right clicked on my project in the project folder window and selected Properties
  5. I clicked on Project Facets and converted it when prompted
  6. I selected "Dynamic Web Module" and clicked ok

Once I had all that done , I started adding the dispatcher, updated the pom with spring, etc.

EDIT 4:

Alright, I'm finally getting somewhere. After commenting out this lines in web.xml:

<listener>
  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

I was able to directly deploy the application through tomcat manager. Now I'm getting 

java.io.FileNotFoundException: Could not open ServletContext resource [/WEB-INF/dispatcher-servlet.xml]

It seems it's trying to find the dispatcher-servlet.xml under /WEB-INF folder. After looking inside the war file, I cannot locate the file at all. Every time I place the servlet xml in that folder, it seems to be removed. I can put it under any other folder, but for some reason when I do, it still seems to search for the file under /WEB-INF even after updating the web.xml to reference the new location.

EDIT 5:

Here's an update on my 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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">

  <display-name>Test</display-name>

  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>

  <servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>WEB-INF/classes/dispatcher-servlet.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>WEB-INF/classes/applicationContext.xml</param-value>
  </context-param>

  <context-param>
    <param-name>log4jConfigLocation</param-name>
    <param-value>WEB-INF/classes/log4j.properties</param-value>
  </context-param>

  <listener>
    <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
  </listener>

</web-app>

After explicitly adding the location of applicationContext and dispatcher-servlet. catalina.out says:

Mapped URL path [/bench] onto handler 'benchController'
Mapped URL path [/bench.*] onto handler 'benchController'
Mapped URL path [/bench/] onto handler 'benchController'
Mapped URL path [/bench] onto handler 'benchController'
Mapped URL path [/bench/*] onto handler 'benchController'
FrameworkServlet 'dispatcher': initialization completed in 245 ms

But when going to localhost:8080/Test/bench - it still returns a 404. I cannot acess index.jsp when I deploy through tomcat manager, but I can if I deploy through eclipse. No other output by catalina.out.

Log:

127.0.0.1 - - [20/Feb/2012:14:41:13 -0800] "GET /Test/ HTTP/1.1" 200 182
127.0.0.1 - - [20/Feb/2012:14:41:19 -0800] "GET /Test/ HTTP/1.1" 200 182
127.0.0.1 - - [20/Feb/2012:14:41:24 -0800] "GET /Test/bench HTTP/1.1" 404 1012

SOLUTION:

I followed the instructions provided below and inside the project folder, from the command line I ran mvn eclipse:eclipse -Dwtpversion=2.0 so that eclipse can import the project correctly. I'm working on figuring out how to do this all through eclipse to avoid having to manually do this every time.

1
javaeclipsespringtomcatspring-mvc
The only logs I've been able to find is /var/log/tomcat6/localhost.2012-02-18.log but that doesn't contain any data. – user1218776
Ok I'm sorry my error log was produced not by tomcat but by log4j. So in catalina.out do you see any messages from Spring? Do you see this: INFO : org.springframework.web.servlet.DispatcherServlet - FrameworkServlet 'Spring MVC Dispatcher Servlet': initialization started ? – Oleg Mikheev
do you have log4j-1.2.xx.jar, slf4j-api-1.6.x.jar and slf4j-log4j12-1.6.x.jar in WEB-INF/lib ? – Oleg Mikheev
catalina.out doesn't have that. It only shows start up / stop messages. I have yo.jsp under/WebContent/WEB-INF/jsp. (/Webcontent is creatd by eclipse). – user1218776
/WebContent/WEB-INF/lib is empty. But I have all my dependencies declared in my pom file. I'll update above. Also, I did have some issues with eclipse and googling around told me to run mvn eclipse:eclipse -Dwtpversion=2.0 – user1218776

1 Answers

6
votes

You mentioned you wanted to learn how to make Spring MVC web app from scratch - here's the list of steps to produce a working app with your configuration:

1) create a folder a

2) in that folder create a file pom.xml:

<?xml version="1.0" encoding="UTF-8"?>
<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>test</groupId>
<artifactId>test</artifactId>
<name>test</name>
<packaging>war</packaging>
<version>1.0.0-SNAPSHOT</version>
<properties>
    <org.springframework.version>3.0.5.RELEASE</org.springframework.version>
</properties>
<dependencies>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.16</version>
        <scope>runtime</scope>
    </dependency>
</dependencies>
<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-war-plugin</artifactId>
            <configuration>
                <warName>test</warName>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>2.3.2</version>
            <configuration>
                <source>1.6</source>
                <target>1.6</target>
            </configuration>
        </plugin>
    </plugins>
</build>
</project>

3) in folder a create sub folders src/main/java/test and put file YoController.java there:

package test;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;

@Controller
public class YoController {

    @RequestMapping(value = "/bench", method = RequestMethod.GET)
    @ResponseBody
    public String welcome(Model model) {
        return "yo";
    }
}

4) create subfolders src/main/webapp/WEB-INF and put two files there, web.xml:

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

    <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>

</web-app>

and dispatcher-servlet.xml:

<?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"
    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="test" />

</beans>

5) create subfolders src/main/resources and put log4j.properties file there:

log4j.rootLogger=INFO, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

6) in command prompt from folder a type: mvn package

7) copy target/test.war to Tomcat's webapps folder

8) start Tomcat and go to URL localhost:8080/test/bench

I've just completed all the steps and it worked. Logging shows Spring messages that will tell you if something is wrong.