Spring MVC初体验之出师不利

对struts2感觉日渐不满，主要是比较复杂的界面，Action里的field会很多，相应的getter和setter也是密密麻麻，十分不好看。并且OGNL的性能确实也比较差。所以就学习一下听说很不错的Spring MVC

本以为学个框架应该是轻而易举的事情，谁知helloworld就不顺利

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://java.sun.com/xml/ns/javaee"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
	id="springmvc" version="3.0">

	<display-name>springmvc</display-name>

	<servlet>
		<servlet-name>example</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<load-on-startup>1</load-on-startup>
	</servlet>

	<servlet-mapping>
		<servlet-name>example</servlet-name>
		<url-pattern>/*</url-pattern>
	</servlet-mapping>

</web-app>

<?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"
	xmlns:context="http://www.springframework.org/schema/context"
	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="net.kyfxbl.springmvc" />

	<bean
		class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />

	<bean
		class="org.springframework.web.servlet.view.InternalResourceViewResolver"
		p:prefix="/WEB-INF/view/" p:suffix=".jsp"
		p:viewClass="org.springframework.web.servlet.view.JstlView" />

</beans>

@Controller
public class HelloWorldController {

	@RequestMapping("/hello")
	public ModelAndView helloWorld() {

		String message = "hello world Spring MVC";
		return new ModelAndView("result", "message", message);

	}

	@RequestMapping("/bye")
	public ModelAndView goodbye() {

		String message = "bye Spring MVC";
		return new ModelAndView("result", "message", message);

	}

}

然后在浏览器输入http://localhost:8080/springmvc/hello，居然失败了，报了No mapping found for HTTP request with URI错误

上网查了一下，原来是web.xml里配错了，<url-pattern>里应该是"/"，不能是"/*"

评论

1 楼 rox 2012-02-12  

坚持下去，你会发现Spring MVC更多的优点。