No mapping found error in dispatcher servlet

Question

I am a beginner in Spring MVC and while trying to create a Spring MVC application I am getting the below error :

no mapping found for http request with uri [/SpringMVCHibernateCRUD] in dispatcherservlet 'appServlet'

Following are the files:

Web.xml

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/spring/root-context.xml</param-value>
</context-param>


<!-- Processes application requests -->
<servlet>
    <servlet-name>appServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

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

servlet-context.xml

      <context:component-scan base-package="com.jwt" />

<!-- Getting Database properties -->
<context:property-placeholder location="classpath:application.properties" />

<mvc:annotation-driven />

<!-- Specifying the Resource location to load JS, CSS, Images etc -->
<mvc:resources mapping="/resources/**" location="/resources/" />

<!-- View Resolver -->
<bean
    class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix" value="/WEB-INF/pages/" />
    <property name="suffix" value=".jsp" />
</bean>

<!-- Transaction -->
<bean id="transactionManager"

 class="org.springframework.orm.hibernate4.HibernateTransactionManager">
    <property name="sessionFactory" ref="sessionFactory" />
</bean>

<tx:annotation-driven transaction-manager="transactionManager" />
 </beans>

EDIT:

Controller

 @Controller
 public class EmployeeController {

 private static final Logger logger = Logger
        .getLogger(EmployeeController.class);

 public EmployeeController() {
    System.out.println("EmployeeController()");
 }

 @Autowired
 private EmployeeService employeeService;

 @RequestMapping(value = "/")
 public ModelAndView listEmployee(ModelAndView model) throws IOException {
    List<Employee> listEmployee = employeeService.getAllEmployees();
    model.addObject("listEmployee", listEmployee);
    model.setViewName("home");
    return model;
 }

Changing from / to /* did not solve the and I already have the @controller annotation on the controllers. Can someone please help me with the issue.

Answer 1

change your servlet mapping with this and try ;

<servlet-mapping>
    <servlet-name>appServlet</servlet-name>
    <url-pattern>/*</url-pattern>
</servlet-mapping>

In your web.xml , your url-pattern is only / . Change with /* to send request to any url.

Answer 2

try below:

<servlet-mapping>
    <servlet-name>appServlet</servlet-name>
    <url-pattern>/app/*</url-pattern>
</servlet-mapping>

Answer 3

感谢您的回答，显然一个简单的清理和构建解决了我的问题。