Maven Spring WebApp HTTP Status 404 - spring

Question

Try to run student_list.jsp and after running a I got HTTP Status 404.
Here I send photo of my maven project which is set up in Netbeans and the codes. Please for check if everything is set up right. I am the beginner in Spring.
Thanks
Code:
student_list.jsp
<%#page import="java.util.List"%>
<%#page import="cz.webapp.student.entity.Student"%>
<%#taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%#taglib prefix="s" uri="http://www.springframework.org/tags"%>
<div>
<h2>List of Persons</h2>
<table title="List Of Persons" border="1">
<tr>
<th>Name</th>
<th>Age</th>
</tr>
<%
List<Student> studentList = (List)request.getAttribute("students");
for(Student student: studentList){
out.println("<tr>");
out.println("<td>" + student.getId() + "</td>");
out.println("<td>" + student.getName() + "</td>");
out.println("<td>" + student.getAge() + "</td>");
out.println("</tr>");
}
%>
</table>
</div>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<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 MVC Application</display-name>
<servlet>
<servlet-name>StudentWebApp</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>StudentWebApp</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
StudentWebApp-servlet.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"
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="cz.webapp.student" />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
StudentController
/*
* 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.
*/
package cz.webapp.student.controllers;
import cz.webapp.student.entity.Student;
import cz.webapp.student.service.StudentService;
import java.util.List;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import static org.springframework.web.bind.annotation.RequestMethod.GET;
import org.springframework.web.bind.annotation.RequestParam;
/**
*
* #author Jenda
*/
#Controller
public class StudentController {
#Autowired
StudentService studentServiceImpl;
#RequestMapping(value="/students", method=GET)
public String showAllStudent(Map<String, Object> model){
List<Student> studentList = studentServiceImpl.findAll();
model.put("students", studentList);
return "student_list";
}
}

Answer 1

I THINK I may have found a problem. In your servlet.xml file, your base package seems wrong. Try this: <context:component-scan base-package="cz.webapp.student.*" />
Because I think Spring is looking for a package called cz.webapp.student when you have your package set to cz.webapp.student.controllers
There are a lot of causes for a 404 error and having a wrong base package is one of them, so I'm not exactly certain if this will fix it, but it's a good start.