【发布时间】：2026-01-07 17:40:01
【问题描述】：
在几乎一整天都试图了解自己做错了什么之后，我放弃了。 似乎我在*上找到的所有东西都试过了，但我不能让它全部工作。 我有一个简单的 SpringMVC+Maven+Hibernate 教程在 Eclipse 中设置并准备就绪，唯一剩下的就是实际运行它并查看结果:(无论我尝试什么链接，我都会收到 HTTP 404 错误。
这是我的设置：
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 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_2_5.xsd">
<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/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>
</web-app>
servlet-context.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:beans="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd">
<!-- Enable @Controller annotation support -->
<mvc:annotation-driven />
<!-- Map simple view name such as "test" into /WEB-INF/test.jsp -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/" />
<property name="suffix" value=".jsp" />
</bean>
<!-- Scan classpath for annotations (eg: @Service, @Repository etc) -->
<context:component-scan base-package="com.tutorial.pizzashop"/>
<!-- JDBC Data Source. It is assumed you have MySQL running on localhost port 3306 with
username root and blank password. Change below if it's not the case -->
<bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/pizzashop"/>
<property name="username" value="root"/>
<property name="password" value="discover"/>
<property name="validationQuery" value="SELECT 1"/>
</bean>
<!-- Hibernate Session Factory -->
<bean id="mySessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="myDataSource"/>
<property name="packagesToScan">
<array>
<value>com.tutorial.pizzashop</value>
</array>
</property>
<property name="hibernateProperties">
<value>
hibernate.dialect=org.hibernate.dialect.MySQLDialect
</value>
</property>
</bean>
<!-- Hibernate Transaction Manager -->
<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="mySessionFactory"/>
</bean>
<!-- Activates annotation based transaction management -->
<tx:annotation-driven transaction-manager="transactionManager"/>
</beans>
index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Pizzashop</title>
</head>
<body>
<h1>List of all Pizzas</h1>
<ul>
<c:forEach var="p" items="${pizzas}">
<li>${p.id} - ${p.name} : ${p.price}</li>
</c:forEach>
</ul>
</body>
</html>
PizzaController.java
package com.tutorial.pizzashop;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@Controller
@RequestMapping("/")
public class PizzaController {
@Autowired
private PizzaDAO pizzaDAO;
/**
* This handler method is invoked when http://localhost:8080/pizzashop is
* requested. The method returns view name "index" which will be resolved
* into /WEB-INF/index.jsp. See src/main/webapp/WEB-INF/servlet-context.xml
*/
@RequestMapping(method = RequestMethod.GET)
public String list(Model model) {
List<Pizza> pizzas = pizzaDAO.findAll();
model.addAttribute("pizzas", pizzas);
return "index";
}
}
PizzaDAO.java
package com.tutorial.pizzashop;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;
@Repository
@SuppressWarnings({ "unchecked", "rawtypes" })
public class PizzaDAO {
@Autowired
private SessionFactory sessionFactory;
/**
* @Transactional annotation below will trigger Spring Hibernate transaction
* manager to automatically create a hibernate session. See
* src/main/webapp/WEB-INF/servlet-context.xml
*/
@Transactional
public List<Pizza> findAll() {
Session session = sessionFactory.getCurrentSession();
List pizzas = session.createQuery("from Pizza").list();
return pizzas;
}
}
Pizza.java
package com.tutorial.pizzashop;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name = "PIZZAS")
public class Pizza {
@Id
@GeneratedValue
private long id;
private String name;
private double price;
//getters and setters...
}
我遵循的教程：http://gerrydevstory.com/2013/06/29/spring-mvc-hibernate-mysql-quick-start-from-scratch/
【问题讨论】：
标签： java mysql hibernate spring-mvc