У меня есть простой проект Spring MVC, и, как я вижу, контроллер не работает. После запуска страницы http://localhost:8080/story/list показывает HTTP-статус 404 - Но когда я запускаю TestDbServlet, все работает нормально (отображается http://localhost:8080/TestDbServlet)
Снимок экрана структуры проекта
файл web.xml
<?xml version="1.0" encoding="UTF-8"?>
<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_4_0.xsd"
version="4.0">
<display-name>jeremy</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
<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/applicationContext.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>
applicationContext.xml file
<?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:tx="http://www.springframework.org/schema/tx"
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
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<!--component scanning-->
<context:component-scan base-package="com.aalegz.jeremy" />
<!-- Add support for conversion, formatting and validation support -->
<mvc:annotation-driven/>
<!--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>
<!--Step 1: Define database / DataSource connection pool-->
<bean id="myDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="com.mysql.jdbc.Driver" />
<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/stories_manager?useSSL=false" />
<property name="user" value="manager" />
<property name="password" value="manager" />
<!-- these are connection pool properties for C3P0 -->
<property name="minPoolSize" value="5" />
<property name="maxPoolSize" value="20" />
<property name="maxIdleTime" value="30000" />
</bean>
<!--Step 2: Setup Hibernate Session Factory-->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
<property name="dataSource" ref="myDataSource" />
<property name="packagesToScan" value="com.aalegz.jeremy.entity" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<!--Step 3: Setup Hibernate transaction manager-->
<bean id="myTransactionManager"
class="org.springframework.orm.hibernate5.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
<!--Step 4: Enable configuration of transactional behavior based on annotations-->
<tx:annotation-driven transaction-manager="myTransactionManager"/>
</beans>
StoryController.java @Controller class
package com.aalegz.jeremy.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
@RequestMapping("/story")
public class StoryController {
@RequestMapping("/list")
public String listStories(Model theModel) {
System.out.println("Showing page..");
return "list-stories";
}
}
TestDbServlet
package com.aalegz.testdb;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
@WebServlet("/TestDbServlet")
public class TestDbServlet extends javax.servlet.http.HttpServlet {
protected void doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException, IOException {
//setuo connection variables
String user = "manager";
String password = "manager";
String jdbcUrl = "jdbc:mysql://localhost:3306/stories_manager?useSSL=false";
// ?serverTimezone=UTC
String driver = "com.mysql.jdbc.Driver";
//get connection to database
try {
PrintWriter out = response.getWriter();
out.println("Connecting to DB: " + jdbcUrl);
Class.forName(driver);
Connection myConn = DriverManager.getConnection(jdbcUrl, user, password);
out.println("Connection successful!");
myConn.close();
} catch (Exception e) {
e.printStackTrace();
throw new ServletException(e);
}
}
}