Spring - No mapping found for HTTP request with URI

0

Witam bardzo serdecznie. Piszę ponieważ mam problem z poprawną konfiguracją Springa. Kod, który znajduje się w kontrolerze wykonuje się, natomiast zamiast zwrócić podaną stronę wyświetla się błąd HTTP Status 404 - Not Found. W konsoli Glassfish pojawia się - No mapping found for HTTP request with URI [/Student-System-1.0/index] in DispatcherServlet with name 'mvc-dispatcher'

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"
        id="Student_System" version="3.0">
    <servlet>
        <servlet-name>mvc-dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/applicationContext.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>mvc-dispatcher</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/applicationContext.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <welcome-file-list>
        <welcome-file>/WEB-INF/jsp/index.jsp</welcome-file>
    </welcome-file-list>
</web-app>
 

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:mvc="http://www.springframework.org/schema/mvc"
       xmlns:context="http://www.springframework.org/schema/context"

       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-4.0.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">

    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>

    <mvc:resources mapping="/resources/**" location="/resources/" />
    <!--<mvc:default-servlet-handler />-->
    <mvc:annotation-driven />

    <context:component-scan base-package="edu.uz.project" use-default-filters="false">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
    </context:component-scan>
</beans>

applicationContext.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:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql://localhost:3306/student_system"/>
        <property name="username" value="root"/>
        <property name="password" value=""/>
    </bean>

    <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="packagesToScan" value="edu.uz.project.hibernate.pojo"/>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                <prop key="show_sql">true</prop>
            </props>
        </property>
    </bean>

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

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

    <context:component-scan base-package="edu.uz.project" use-default-filters="false">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
    </context:component-scan>

    <bean id="userDAO" class="edu.uz.project.hibernate.dao.UserDAOImpl"/>
</beans>
 

Controller

@Controller
public class HelloController {

    @Autowired
    private UserDAO userDAO;

    @RequestMapping(value = "/test", method = RequestMethod.GET)
    public String getAllUsers() {
        userDAO.getAllUsers();
        return "index";
    }
}
 
1

A jak myślisz do czego ta linijka służy?

@RequestMapping(value = "/test", method = RequestMethod.GET)
1

Problem dotyczy resolvera widoków, który jest, ale nigdzie nie masz wskazane by z niego korzystać. Masz natomiast wskazane, by korzystać z resolvera mvc-dispatcher, który prawdopodobnie wcale nie istnieje.

Spróbuj podmienić kod w deskryptorze wdrażania na ten:

<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>
 
0
Corriel napisał(a):

A jak myślisz do czego ta linijka służy?

@RequestMapping(value = "/test", method = RequestMethod.GET)

Błąd No mapping found for HTTP request with URI [/Student-System-1.0/index] in DispatcherServlet with name 'mvc-dispatcher'
pojawia się, gdy chce przejść na stronę
http://localhost:8080/Student-System-1.0/test
Metoda z requesta jest wykonywana, natomiast strona się nie wyświetla.

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