I am new to spring mvc framework and followed this site for hello world tutorial
error: the requested resource is not available
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"
id="WebApp_ID" version="2.5">
<display-name>HelloWorldExampleWithSpring3MVCInEclipse</display-name>
<servlet>
<servlet-name>Spring MVC Dispatcher Servlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/app-config.xml
</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Spring MVC Dispatcher Servlet</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
app-config.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"
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">
<!-- Scans the classpath of this application for #Components to deploy as beans -->
<context:component-scan base-package="com.raistudies" />
<!-- Configures the #Controller programming model -->
<mvc:annotation-driven />
<!-- Resolves view names to protected .jsp resources within the /WEB-INF/views directory -->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
HelloWorldAction.java
package com.raistudies.actions;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
#Controller
public class HelloWorldAction {
#RequestMapping(value="/hello",method=RequestMethod.GET)
public ModelAndView sayHello(Model model){
ModelAndView mv = new ModelAndView();
mv.setViewName("hello");
model.addAttribute("HelloMessage", "Hello World from My First Spring 3 mvc application");
return mv;
}
}
hello.jsp
<!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%# page session="true" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Hello World with Spring 3 MVC</title>
</head>
<body>
<h1>Welcome! Spring MVC is working well.</h1><br />
${HelloMessage}
</body>
</html>
In web.xml when we replace "*htm" with "/", then the error of resource not available was solved.
The original issue is because you're sending all requests ending *.htm to Spring:
<servlet-mapping>
<servlet-name>Spring MVC Dispatcher Servlet</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
But your controller is mapped to /hello without an extension.
Change the #RequestMapping in your controller to:
#RequestMapping(value="/hello.htm",method=RequestMethod.GET)
If you are accessing http://localhost:8080/HelloWorldExampleWithSpring3MVCInEclipse/, you need to create a WebContent/index.jsp in your project to make this URL work.
index.jsp:
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<jsp:forward page="/hello.htm"></jsp:forward>
See the sample code here.
Related
Attempting to create a Spring MVC hello world web app. It is currently returning HTTP Status 404. 404 means it can't find the file, but I'm not sure why. I think my servlet.xml is pointing to the appropriate folder (component-scan). I think all the files are named correctly(no typos). See the picture for the error.
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"
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="helloworld" />
<mvc:annotation-driven/>
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/view/" />
<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://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"
id="WebApp_ID" version="3.1">
<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/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>
</web-app>
HelloWorldController.java
package helloworld;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
#Controller
public class HelloWorldController {
#RequestMapping("/")
public String showPage() {
return "hello-world";
}
}
hello-world.jsp
<!DOCTYPE html>
<html><body>Hello World!</body></html>
The servlet.xml and the web.xml were not under WEB-INF.
The RequestMapping is pointed to "/" in the controller. try making a call to http://localhost:8080/
I am learning Spring MVC and I build the first "hello world" example. But I can not reach the page. It says "The origin server did not find a current representation for the target resource or is not willing to disclose that one exists." I am using Tocat 9.0 (I also tried Tomcat 8 still not working). So here is my code below
Controller:
package com.emin.springdemo.mvc;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
#Controller
public class HomeController {
#RequestMapping("/")
public String showPage() {
return "main-menu";
}
}
jsp file:
<%# 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>Insert title here</title>
</head>
<body>
<h2>Spring MVC Demo</h2>
</body>
</html>
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"
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">
<!-- Step 3: Add support for component scanning -->
<context:component-scan base-package="com.emin.springdemo.mvc" />
<!-- Step 4: Add support for conversion, formatting and validation support -->
<mvc:annotation-driven/>
<!-- Step 5: Define Spring MVC view resolver -->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/view/" />
<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://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"
id="WebApp_ID" version="3.1">
<display-name>spring-mvc-demo</display-name>
<!-- Spring MVC Configs -->
<!-- Step 1: Configure Spring MVC Dispatcher Servlet -->
<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-mvc-demo-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- Step 2: Set up URL mapping for Spring MVC Dispatcher Servlet -->
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
I know there is a duplicate subjects in the site. I tried them also didn't reach the solution.
The problem might be the dash since it's not a valid a Java identifier Try renaming jsp and return fileName.
The page you're requesting from browser is not found, so you need to add URL in below pattern:
localhost:(Port number) /project name/(request mapping at controller) /(request mapping at method)
Try mapping URL and restart server.
I've seen this post with no solutions. I'm trying to run a Spring MVC tutorial but for some reason I'm not able to get the mapping in my servlet to call my home.jsp found in /WEB-INF/jsps directory. My context root is set to spring in Eclipse Web Project Settings. The error I'm getting is:
INFO 2016-11-06 11:18:59,613 [http-bio-8080-exec-3]
org.springframework.web.servlet.DispatcherServlet -
FrameworkServlet 'offers': initialization completed in 486 ms
WARN 2016-11-06 11:18:59,623 [http-bio-8080-exec-3]
org.springframework.web.servlet.PageNotFound
- No mapping found for HTTP request with URI [/spring/]
in DispatcherServlet with name 'offers'
My code is as follows:
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"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID"
version="2.5">
<display-name>spring-tutorial-50</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>
<description></description>
<display-name>offers</display-name>
<servlet-name>offers</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<web:load-on-startup>1</web:load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>offers</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
offers-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"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
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-
3.2.xsd">
<context:component-scan base-package="com.mypackage.spring.web.controllers">
</context:component-scan>
<mvc:annotation-driven />
<bean id="jspViewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsps/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
Controller:
#Controller
public class OffersController {
private Logger log = Logger.getLogger(OffersController.class);
#RequestMapping("/")
public String showHome(){
log.info("showHome() called");
return "home";
}
}
home.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>Inside jsps</title>
</head>
<body>
Hi Mom!
</body>
</html>
You did NOT map /spring URI to the controller RequestMapping, look at the below code for the correct mapping:
#Controller
public class OffersController {
private Logger log = Logger.getLogger(OffersController.class);
//Map RequestMapping to /spring
#RequestMapping("/spring", method=RequestMethod.GET)
public String showHome(){
log.info("showHome() called");
return "home";
}
}
I just upgraded to Spring 3.2.17 for all of my Maven library references. When I cleaned and redeployed It worked! #RequestMethod("/") by itself will work if the server is configured properly. It is also possible to get more explicit on what a RequestMethod can handle with things like the following: #RequestMethod(value="/spring", method = RequestMethod.GET) as #javaguy lists. value = "/" etc. also works.
Im new to Spring MVC creating basic hello world example for Spring MVC but getting the message:
HNo Mapping found for HTTP request with URI [/SampleSpringMaven/hello.html] in DispatcherServlet with name dispatcher
index.jsp
<html>
<body>
<h2>Hello World!</h2>
Call Controller
</body>
</html>
Then I Created web.xml
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
After this Dispatcher-servelet.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" xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-2.5.xsd
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.mvc.controller" />
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/" />
<property name="suffix" value=".jsp" />
</bean>
<mvc:annotation-driven/>
<context:annotation-config/>
</beans>
Then I created the HelloWorldController.java
package com.mvc.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
#Controller
public class HelloController {
#RequestMapping("SampleSpringMaven/hello")
public ModelAndView printMessage()
{
String message = "Hello World, Spring 3.0!";
System.out.println("reached here");
return new ModelAndView("hello", "message", message);
}
}
But not able to get the response and requested resource not avialble comes on page in Tomcat logs I see the error : No Mapping found for HTTP request with URI [/SampleSpringMaven/hello.html] in DispatcherServlet with name dispatcher
I am trying to build up a simple spring mvc application,
but i am not able to run this application. After running project,
at the time, when tomcat server starts, it throws java.lang.ClassNotFoundException. Although index.jsp runs, but the execution terminates with 404 error after clicking on any hyperlink on this jsp page.
I have added all the required jar files, and eclipse gives autosuggestion for this class ie "DispatcherServlet". Any suggestion?
For reference, i am giving code too,
java.lang.ClassNotFoundException: com.springframework.web.servlet.DispatcherServlet
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1713)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1558)
at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:527)
at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:509)
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:137)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1144)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1088)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5033)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5317)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
================================================================================
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 App HomePage</title>
</head>
<body>
Say Hello
</body>
</html>
=======================================================================
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>SpringMVC</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>com.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
==================================================================================
bean configuration file, spring-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"
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="kumar.saroj.mvc" />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
===========================================================================
Controller Class
package kumar.saroj.mvc;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
#Controller
public class HelloWorldController
{
public HelloWorldController()
{
}
#RequestMapping("/hello")
public ModelAndView helloWorld()
{
String message = "Hello World, Spring 3.2!";
return new ModelAndView("hello","message",message);
}
}
The DispatcherServlet class name is incorrect.
Try org.springframework.web.servlet.DispatcherServlet instead of com.springframework.web.servlet.DispatcherServlet in your web.xml.