Spring MVC request mapping not found 404 page not found - java

I am developing sample Spring MVC application i want to return JSON string by requesting to spring mvc controller but when i make request via url it shows me 404 error i am following tutorial from very famous website ,My URL to which i make request IS localhost:8080/SpringAngularProject/rest/kfc/brands/kfc1 here is my code below :
0-- Console Picture :
Aug 12, 2014 7:31:19 PM org.springframework.web.servlet.DispatcherServlet noHandlerFound
WARNING: No mapping found for HTTP request with URI [/SpringAngularProject/rest/kfc/brands/sdsd] in DispatcherServlet with name 'mvc-dispatcher'
1- Its my Controller Class
package com.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
#Controller
#RequestMapping("/kfc/brands")
public class HelloWorldController {
#RequestMapping(value = "{name}", method = RequestMethod.GET)
public #ResponseBody Shop getShopInJSON(#PathVariable String name) {
Shop shop = new Shop();
shop.setName(name);
shop.setStaffName(new String[] { "staff1", "staff2" });
return shop;
}
}
2-- My 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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
<display-name>AngularSpring</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>mvc-dispatcher</servlet-name>
<servlet-class> org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>/rest</url-pattern>
</servlet-mapping>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/mvc-dispatcher-servlet.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener </listener-class>
</listener>
</web-app>
3-- My Spring cfg file :
<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" xmlns:mvc="http://www.springframework.org/schema/mvc"
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
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<context:component-scan base-package="com.controller.HelloWorldController" />
<mvc:annotation-driven />
</beans>
4-- My pom.xml file for maven
<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>SpringAngularProject</groupId>
<artifactId>SpringAngularProject</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<build>
<sourceDirectory>src</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.3</version>
<configuration>
<warSourceDirectory>WebContent</warSourceDirectory>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<spring.version>3.2.2.RELEASE</spring.version>
<jackson.version>1.9.10</jackson.version>
<jdk.version>1.7</jdk.version>
</properties>
<dependencies>
<!-- Spring 3 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>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.12</version>
</dependency>
</dependencies>
</project>


Finaly i got my answer myself it was just instead of <context:component-scan base-package="com.controller.HelloWorldController" /> i changed to <context:component-scan base-package="com.controller" /> we just have to give path till Base package as name suggest

Related

Why am I getting a 404 error when accessing my Spring MVC app URL?

I'm following a tutorial at Udemy for my first Spring-MVC web app. I've configured it using XML for the servlet specification exactly as controlled with a Controller class to return a String.
Navigating to the URL http://localhost:8080/spring-mvc/login I get a 404.
My code:
web.xml:
<web-app 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_3_0.xsd"
version="3.0">
<display-name>Spring To do List</display-name>
<!--
<welcome-file-list>
<welcome-file>login.do</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/todo-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/spring-mvc/*</url-pattern>
</servlet-mapping>
</web-app>
todo-servlet.xml :
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<context:component-scan base-package="com.wds" />
<mvc:annotation-driven/>
</beans>
'''
LoginController.java
'''
package com.wds.springmvc;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
#Controller
public class LoginController {
#RequestMapping(value = "/login")
#ResponseBody
public String sayHello() {
System.out.println("performing hello");
return "hello world";
}
}
pom.xml:
4.0.0
com.in28minutes
in28Minutes-first-webapp
0.0.1-SNAPSHOT
war
<dependencies>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>6.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.2.2.RELEASE</version>
</dependency>
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<verbose>true</verbose>
<source>1.8</source>
<target>1.8</target>
<showWarnings>true</showWarnings>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<path>/</path>
<contextReloadable>true</contextReloadable>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
My understanding is that if the controller method executes the Dispatcher Servlet should return the view as specified in the servlet config. As no is specified in there it should just return the String from the controller method i.e. "hello world".
Instead I get the 404.
What I'm confused about is in the console, I can see the servlet config has been registered and the "say Hello" controller method mapped to "/login". I've put a System out in the controller method but it's not being output.
Any idea why I get the 404?
Many Thanks

I would suggest to use request mapping on top of the controller
#Controller
#RequestMapping("/spring-mvc")
public class TestController {
#RequestMapping("/login")
#ResponseBody
public String test(){
System.out.println("test is running");
return "test is working";
}
}
and in web.xml
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
Advantages: Good to read the code as well as easy to scale the application

Error in Spring MVC Program using netbeans

This is my first Spring Security project and I'm new to spring security. But I'm in a trouble with exceptions. Please help me to solve this
My POM.xml file
<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.sarath01</groupId>
<artifactId>WindowAuth</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>WindowAuth</name>
<properties>
<endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.0.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
<version>3.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
<version>3.0.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.0.2.RELEASE</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>5.0.2.RELEASE</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.0.2.RELEASE</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>6.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<compilerArguments>
<endorseddirs>${endorsed.dir}</endorseddirs>
</compilerArguments>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.1.1</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.1</version>
<executions>
<execution>
<phase>validate</phase>
<goals>
<goal>copy</goal>
</goals>
<configuration>
<outputDirectory>${endorsed.dir}</outputDirectory>
<silent>true</silent>
<artifactItems>
<artifactItem>
<groupId>javax</groupId>
<artifactId>javaee-endorsed-api</artifactId>
<version>6.0</version>
<type>jar</type>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
LoginController.java
package com.sarath01.controller;
import java.security.Principal;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
#Controller
public class LoginController {
#RequestMapping(value="/welcome", method=RequestMethod.GET)
public String printWelcome(ModelMap model,Principal principal)
{
String name=principal.getName();
model.addAttribute("username", name);
model.addAttribute("message", "My first own mvc");
return "hello";
}
#RequestMapping(value="/logout",method=RequestMethod.GET)
public String login(ModelMap model)
{
return "login";
}
#RequestMapping(value="/*",method=RequestMethod.GET)
public String home(ModelMap model)
{
return "home";
}
}
Spring-security.xml file
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/security"
xmlns:beans="http://www.springframework.org/schema/beans"
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-3.2.xsd
http://www.springframework.org/schema/security
http://www.springframework.org/schema/security/spring-security-3.2.xsd">
<http auto-config='true'>
<intercept-url pattern="/welcome*" access="ROLE_USER"/>
<http-basic/>
</http>
<authentication-manager>
<authentication-provider>
<user-service>
<user name="sarath" password="123" authorities="ROLE_USER"/>
</user-service>
</authentication-provider>
</authentication-manager>
</beans:beans>
auth-servlet.xm(Where auth is the servlet name)l
<?xml version="1.0" encoding="UTF-8"?>
<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-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd">
<context:component-scan base-package = "com.sarath01" />
<bean class = "org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name = "prefix" value = "/WEB-INF/jsp/" />
<property name = "suffix" value = ".jsp" />
</bean>
<bean id="messageSource" class="org.springframework.context.support.ResouceBundleMessageSource">
<property name="basenames" value="mymessages"/>
</bean>
</beans>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<!--
To change this license header, choose License Headers in Project Properties.
To change this template file, choose Tools | Templates
and open the template in the editor.
-->
<web-app id = "WebApp_ID" version = "2.4"
xmlns = "http://java.sun.com/xml/ns/j2ee"
xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation = "http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>MVC Auth Application</display-name>
<servlet>
<servlet-name>auth</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>auth</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/auth-servlet.xml
/WEB-INF/spring-security.xml
</param-value>
</context-param>
<filter>
<filter-name>springSecurityFilterChain</filter-name>
<filter- class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
<filter-name>springSecurityFilterChain</filter-name>
<url-pattern>/</url-pattern>
</filter-mapping>
</web-app>
Exception (I cannit solve this exception)
17-Jul-2018 16:36:36.358 INFO [http-nio-8084-exec-8] org.apache.catalina.util.LifecycleBase.stop The stop() method was called on component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/WindowAuth] ] after stop() had already been called. The second call will be ignored.
17-Jul-2018 16:36:36.858 INFO [http-nio-8084-exec-8] org.apache.catalina.startup.HostConfig.undeploy Undeploying context [/WindowAuth]
17-Jul-2018 16:36:36.901 INFO [http-nio-8084-exec-2] org.apache.catalina.startup.HostConfig.deployDescriptor Deploying configuration descriptor /home/zeroone/.netbeans/8.2/apache-tomcat- 8.0.27.0_base/conf/Catalina/localhost/WindowAuth.xml
17-Jul-2018 16:36:37.269 INFO [http-nio-8084-exec-2] org.springframework.web.context.ContextLoader.initWebApplicationContext Root WebApplicationContext: initialization started
17-Jul-2018 16:36:37.303 INFO [http-nio-8084-exec-2] org.springframework.context.support.AbstractApplicationContext.prepareRefresh Refreshing Root WebApplicationContext: startup date [Tue Jul 17 16:36:37 IST 2018]; root of context hierarchy
17-Jul-2018 16:36:37.333 INFO [http-nio-8084-exec-2] org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefiniti ons Loading XML bean definitions from ServletContext resource [/WEB-INF/auth- servlet.xml]
17-Jul-2018 16:36:37.408 INFO [http-nio-8084-exec-2] org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefiniti ons Loading XML bean definitions from ServletContext resource [/WEB- INF/spring-security.xml]
17-Jul-2018 16:36:37.417 INFO [http-nio-8084-exec-2] org.springframework.security.core.SpringSecurityCoreVersion.performVersionChecks You are running with Spring Security Core 3.2.5.RELEASE
17-Jul-2018 16:36:37.420 INFO [http-nio-8084-exec-2] org.springframework.security.config.SecurityNamespaceHandler.<init> Spring Security 'config' module version is 3.2.5.RELEASE
17-Jul-2018 16:36:37.438 SEVERE [http-nio-8084-exec-2] org.springframework.web.context.ContextLoader.initWebApplicationContext Context initialization failed
org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from ServletContext resource [/WEB- INF/spring-security.xml]; nested exception is java.lang.NoClassDefFoundError: org/springframework/security/web/util/matcher/AntPathRequestMatcher
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:413)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefiniti ons(XmlBeanDefinitionReader.java:335)
Can any one please help me to find the answer or the error of this question? I'm a beginner to spring security

AntPathRequestMatcher was introduced in version 3.1 of spring-security-web.
Please update POM.xml to a newer version of spring-security-web.

Java 1.8, tomcat 8.5, Jersey 2 - Can't make it work

I went over everything, even made some changes, fixed some problems but still the server sends back 404 even though tomcat itself is up and running. Following is what I did:
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.resty</groupId>
<artifactId>resty</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<repositories>
<repository>
<id>maven2-repository.java.net</id>
<name>Java.net Repository for Maven</name>
<url>http://download.java.net/maven/2/</url>
<layout>default</layout>
</repository>
</repositories>
<dependencies>
<!-- JAX-RS -->
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>javax.ws.rs-api</artifactId>
<version>2.0.1</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet</artifactId>
<version>2.25.1</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-server</artifactId>
<version>2.25.1</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-client</artifactId>
<version>2.25.1</version>
</dependency>
</dependencies>
<build>
<finalName>resty</finalName>
<plugins>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.0.0</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
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_3_0.xsd"
version="3.0">
<display-name>resty</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>jersey-serlvet</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>jersey.config.server.provider.packages</param-name>
<param-value>com.resty</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>jersey-serlvet</servlet-name>
<url-pattern>/resty/*</url-pattern>
</servlet-mapping>
</web-app>
Resty.java
package com.resty;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
#Path("/resty")
public class Resty {
#GET
#Produces(MediaType.APPLICATION_JSON)
#Path("/example")
public String getExample() {
return "{\"result\":\"blah\"}";
}
}
I'm sure I'm missing something but I just can't figure out what it is. When run as - running on server, eclipse opens this url: http://localhost:9090/Resty/ but I see 404. I tried adding more resty/ to the url and also /example (see code above) but all gives 404.
What am I missing?

you are using <url-pattern>/resty/*</url-pattern> in web.xml and using #Path("/resty") in class for class mapping, and use url http://localhost:9090/Resty/ that is wrong. you need to use <url-pattern>/*</url-pattern>. and url will be http://localhost:9090/resty/
you can also use anything into <url-pattern>/*</url-pattern> which you want but you need to use this pattern before controller path in url.

SpringMVC not working in Netbeans 8.2 (maven build)

I'm new to J2EE and Spring framework.
I just want to start to employ this framework in Netbeans v.8.2 using Maven, but when I add Spring to the mix, it doesn't even deploy on GlassFish 4.
I made:
File > new Project > Maven project > Web Application
because I wanted to add Spring in a second moment.
Then I added a spring-conf.xml file to configurate Spring, in /WEB-INF:
<?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:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">
<context:component-scan base-package="alex.mawashi" />
<mvc:annotation-driven />
</beans>
This is my deployment descriptor:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<!-- declaration of dispatcher servlet (Single servlet of Spring MVC) -->
<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/spring-conf.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- servlet-mapping of dispatcher servlet (Single servlet of Spring MVC) -->
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/spring-mvc/*</url-pattern>
</servlet-mapping>
<!-- end of servlet-mapping of dispatcher servlet (Single servlet of Spring MVC -->
</web-app>
This is my pom.xml file where all the dependencies have been downloaded correctly:
<?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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>alex.mawashi</groupId>
<artifactId>MySpringMVCExample</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>MySpringMVCExample</name>
<properties>
<endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>7.0</version>
<scope>provided</scope>
</dependency>
<!-- spring MVC dependencies-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.6.RELEASE</version>
<exclusions>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- end of spring MVC dependencies-->
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<compilerArguments>
<endorseddirs>${endorsed.dir}</endorseddirs>
</compilerArguments>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.3</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.6</version>
<executions>
<execution>
<phase>validate</phase>
<goals>
<goal>copy</goal>
</goals>
<configuration>
<outputDirectory>${endorsed.dir}</outputDirectory>
<silent>true</silent>
<artifactItems>
<artifactItem>
<groupId>javax</groupId>
<artifactId>javaee-endorsed-api</artifactId>
<version>7.0</version>
<type>jar</type>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
This is my Controller:
package alex.mawashi.myspringmvcexample;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
#Controller
public class SpringFirstController {
#RequestMapping(value = "/gimmeResponseBody")
#ResponseBody
public String sayHello() {
return "<p> Ciao! Questa risposta รจ direttamente ottenuta con il #ResponseBody! </p>";
}
#RequestMapping(value = "/")
#ResponseBody
public String kimoNO() {
return "jspPage";
}
}
I attach the screenshot of my project tree also.
It doesn't even deploy and this is the error:
Grave: Exception while loading the app
Grave: Undeployment failed for context /MySpringMVCExample
Grave: Exception while loading the app : java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: org.apache.catalina.LifecycleException: org.xml.sax.SAXParseException; lineNumber: 11; columnNumber: 60; The prefix "context" for the element "context:component-scan" is not associated.
This is the link to the little project on GitHub: https://github.com/alessandroargentieri/MySpringMCVExample
So then, what am I missing? Thanks!

Adjust your spring-conf.xml as follows:
<?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"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<context:component-scan base-package="alex.mawashi" />
<mvc:annotation-driven />
</beans>
Also, it is recommended to remove the following from the pom file:
<exclusions>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
</exclusion>
</exclusions>
And modify your request mapping in the web.xml like this:
<url-pattern>/*</url-pattern>

SpringMVC JSP: Method not called on initial page load

I want SpringMVC to call a method when my-site.com loads that adds some attributes to the model just like my other working methods do. I originally used this annotation:
#RequestMapping(value = "/", method = RequestMethod.GET)
The problem is, Spring ignores the method for some reason, yet allows everything else to work. As a work-around I have to declare it like this:
#RequestMapping(value = "/unnecessary-page", method = RequestMethod.GET)
and put a link to my-site.com/unnecessary-page on the main page. This is very strange. How would I get this to work the way I originally intended?
edit: this is the web.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<!--Dispatcher Config-->
<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/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>
<!--Application Config-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<!-- Creates the Spring Container shared by all Servlets and Filters -->
<listener>
<listener-class>com.web.search.context.ContextFinalizer</listener-class>
</listener>
</web-app>

#RequestMapping(value = "/*")
Try to remove this line. I think this is your problem, hope so.
index.jsp
<html>
<body>
<h2>${mgs}</h2>
</body>
</html>
HomepageController.java
#Controller
public class HomePageController {
#RequestMapping(value = "/", method = RequestMethod.GET)
public String getHomePage(ModelMap map) {
map.addAttribute("mgs", "Hello, Have a nice day");
return "index";
}
}
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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
">
<!-- Use #Component annotations for bean definitions -->
<context:component-scan base-package="ltvnc.java.lichking.*" />
<!-- Use #Controller annotations for MVC controller definitions -->
<mvc:annotation-driven />
<!-- View resolver -->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/views/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
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>
</web-app>
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>ltvnc.java.lichking</groupId>
<artifactId>example</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>example Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<spring.version>4.1.1.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
</dependencies>
<build>
<finalName>example</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
it will display "Hello, have a nice day" when you start your app with url http://localhost:7080/example/

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