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Tomcat / Spring Integration Returning 404

I have a similar problem with 404 HTTP status in Spring 3.1 MVC application

But I did not make the same mistakes as this poster, but I still get 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 can load index.jsp, but not the actual controller.

file dispatcher-servlet.xml:

 <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 can go to localhost: 8080 / Test / index.jsp, but localhost: 8080 / Test / bench returns 404.

I use eclipse if this helps.

EDIT 1:

This is logging.properties. I can not find any of the magazines except the magazine.

 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

Interestingly, I'm not sure where the catalina.base variable is 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 do not see log4j in the dependency tree, even if it is in my pom file.

EDIT 3:

This is how I created the project in eclipse:

  • New Maven project (m2 eclipse plugin)
  • I chose Simple Project
  • The completed group id / artificat and the selected war as my packaging.
  • I right-clicked on my project in the project folder window and selected Properties
  • I clicked on the project face and converted it when prompted
  • I selected Dynamic Web Module and clicked ok

As soon as I did all this, I started adding a dispatcher, updated pom using spring, etc.

EDIT 4:

Okay, I'm finally leaving. After commenting out these 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 get

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

It seems to be trying to find dispatcher-servlet.xml in the / WEB -INF folder. Having looked at the war file, I cannot find the file at all. Every time I put the servlet xml file in this folder, it seems to be deleted. I can put it in any other folder, but for some reason, when I do this, it still searches for the file under / WEB -INF even after updating web.xml to link to the new location.

EDIT 5:

Here is the update of 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 the servlet manager. 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 switching to localhost: 8080 / Test / bench - it still returns 404. I cannot use index.jsp when deploying via tomcat manager, but I can if I deploy through eclipse.

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

DECISION:

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

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1 answer

You mentioned that you want to learn how to make a Spring MVC web application from scratch - here is a list of steps to create a working application with your configuration:

1) create folder a

2) in this folder create the pom.xml file:

 <?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 the folder a create subfolders src/main/java/test and put the 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 place two web.xml files there:

 <?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 the log4j.properties file there:

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

6) at the command prompt from the folder a enter: mvn package

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

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

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

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Source: https://habr.com/ru/post/1397251/

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