WARNING: No mapping found for HTTP request with URI in DispatcherServlet with name 'SpringRest' - spring

Question

I am trying to hit the url but I am 404 error & in console I am getting warning as WARNING: No mapping found for HTTP request with URI [/spring-mvc/hello] in DispatcherServlet with name 'SpringRest'
I am not sure about the web.xml settings. My code is like below.
Any help would be appreaciated. Thanks in Advance..
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>SpringRest</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>SpringRest</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
TestController.java
package controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import com.wocs.services.common.ServiceException;
import com.wocs.services.order.iface.OrderServiceIface;
import com.wocs.services.order.model.hiera.OrderHiera;
#RestController
public class TestController {
#RequestMapping("/hello")
public String hello() throws ServiceException
{
return "Hello............";
}
}
SpringRest-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" >
<mvc:annotation-driven/>
<context:annotation-config></context:annotation-config>
<context:component-scan base-package = "com.wocs" />
<import resource="classpath:/beanfactory/service-bean-config.xml" />
</beans>

Answer 1

It might be the #RequestMapping("/hello") as you're NOT defining what type of method is used to receive the request.
Try this
#GetMapping(value="/hello", produces = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<String> hello() throws ServiceException
{
return new ResponseEntity<>("Hello............", HttpStatus.OK);
}

Answer 2

You can modify your Controller class like this and tell me if it works
#Controller
public class TestController {
#GetMapping("/hello")
public String hello() throws ServiceException
{
return "Hello............";
}
}
if this doesn't work you can try
#Controller
public class TestController {
#RequestMapping(value = "/hello", method = RequestMethod.GET, produces = "application/json")
public String hello() throws ServiceException
{
return "Hello............";
}
}
web.xml
<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">
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>SpringRest</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>SpringRest</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
check that your web.xml file and SpringRest-servlet.xml file is in webapp/WEB-INF folder, also check that your controller java class is in src/main/java and not in src/main/test , most of the time improper directory structure causes the problem. Let me know if it still does not work.

Answer 3

Add this to your web.xml file:-
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/SpringRest-servlet.xml</param-value>
</context-param>
<listener>
<listener class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>