Spring MVC3 基本配置

之前用过struts2,学习了spring mvc之后，发现还是比struts2方便一些。

首先，web.xml配置

<filter>
		<filter-name>springUtf8Encoding</filter-name>
		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>UTF-8</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>springUtf8Encoding</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	
	<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>*.do</url-pattern>
	</servlet-mapping>

	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>/WEB-INF/applicationContext.xml</param-value>
	</context-param>

也可以配置url-pattern为 / ，这需要在spring配置中添加<mvc:resources mapping="/resources/**" location="/resources/"/>，这个据说只在3.05版本之后支持。

然后是spring mvc配置文件：dispatcher-servlet.xml , 这个名称中的 dispatcher要和web.xml中DispatcherServlet的名称相同

<?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:p="http://www.springframework.org/schema/p"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

	<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver" 
 		p:prefix="/jsp/" p:suffix=".jsp">
	</bean>
	
</beans>

然后是spring主配置文件：

启用注解

<context:annotation-config />

	<context:component-scan base-package="com.sivalabs"></context:component-scan>
	
	<mvc:annotation-driven />

配置place holder，用来读取application configuration

<context:property-placeholder location="/WEB-INF/config.properties"/>

数据源、sessionfactory、事务管理器，其中的

<bean id="dataSource"
		class="org.springframework.jdbc.datasource.DriverManagerDataSource"
		p:driverClassName="${jdbc.driverClassName}" 
		p:url="${jdbc.url}"
		p:username="${jdbc.username}" 
		p:password="${jdbc.password}">
	</bean>
	
	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
		<property name="dataSource" ref="dataSource"></property>
		<property name="hibernateProperties">
			<props>
				<prop key="hibernate.dialect">${hibernate.dialect}</prop>
				<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
			</props>
		</property>
		<property name="packagesToScan" value="com.sivalabs"></property>
	</bean>
	<bean id="transactionManager"
		class="org.springframework.orm.hibernate3.HibernateTransactionManager"
		p:sessionFactory-ref="sessionFactory">
	</bean>
	<!-- annotate transactional method -->
	<tx:annotation-driven transaction-manager="transactionManager"></tx:annotation-driven>

配置message，默认放置在classpath

<!-- resource message -->
	<bean id="messageSource"
		class="org.springframework.context.support.ResourceBundleMessageSource"
		p:basename="Messages"></bean>

Cotroller的写法：

@Controller
public class ContactsControllers {
	
	private ContactsDAO contactsDAO;
	@Autowired
	public void setContactsDAO(ContactsDAO contactsDAO) {
		this.contactsDAO = contactsDAO;
	}

	@Autowired
	private ContactFormValidator validator;

	@InitBinder
	public void initBinder(WebDataBinder binder) {
		SimpleDateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy");
		dateFormat.setLenient(false);
		binder.registerCustomEditor(Date.class, new CustomDateEditor(
				dateFormat, true));
	}

	@RequestMapping("/viewAllContacts")
	public ModelAndView getAllContacts() {
		ModelAndView mav = new ModelAndView("showContacts");
		List contacts = contactsDAO.getAllContacts();
		mav.addObject("SEARCH_CONTACTS_RESULTS_KEY", contacts);
		return mav;
	}

	@RequestMapping(value = "/saveContact", method = RequestMethod.GET)
	public ModelAndView newuserForm() {
		ModelAndView mav = new ModelAndView("newContact");
		Contact contact = new Contact();
		mav.getModelMap().put("newContact", contact);
		return mav;
	}

	@RequestMapping(value = "/saveContact", method = RequestMethod.POST)
	public String create(@ModelAttribute("newContact") Contact contact,
			BindingResult result, SessionStatus status) {
		validator.validate(contact, result);
		if (result.hasErrors()) {
			return "newContact";
		}
		contactsDAO.save(contact);
		status.setComplete();
		return "redirect:viewAllContacts.do";
	}

	@RequestMapping(value = "/updateContact", method = RequestMethod.GET)
	public ModelAndView edit(@RequestParam("id") Integer id) {
		ModelAndView mav = new ModelAndView("editContact");
		Contact contact = contactsDAO.getById(id);
		mav.addObject("editContact", contact);
		return mav;
	}
}

<pre></pre>

view中使用spring mvc标签form

<form:form action="saveContact.do" method="post" commandName="newContact">
<!-- form goes here -->
</form>