SpringMVC中controller的配置方式（2）

这一篇采取注解的方式来配置controller，这样就不用在springmvc-servlet.xml中写配置代码。

新建一个controller类，专门用来测试注解方式。

使用注解的方式，则不需要使该类实现Controller接口。

在类前面加上@Controller表示该类是个控制器

package controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class TestAnnotationController {
	@RequestMapping("/testAnnotation")
	public ModelAndView handleRequest(HttpServletRequest request,HttpServletResponse response) throws Exception{
		ModelAndView mav = new ModelAndView("testAnnotation");
		mav.addObject("message","Hello Spring MVC By Annotation");
		return mav;
	}
}

springmvc-servlet.xml配置

增加<context:component-scan base-package="controller" /> 表示从包controller下扫描有@Controller注解的类

<?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"
    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="controller"/>
     <bean id="irViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
     		<property name="prefix" value="/WEB-INF/page/"/>
     		<property name="suffix" value=".jsp"/>
     </bean>

	
</beans>

再在WEB-INF/page下面添加一个testAnnotation.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" isELIgnored="false"%>
<!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>测试2</title>
</head>
<body>

<h1>${message}</h1>

</body>
</html>

访问http://localhost:8080/springmvc/testAnnotation即可成功

SpringMVC中controller的配置方式（2）

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