第一个SpringMVC

最新推荐文章于 2022-08-31 12:37:32 发布

原创最新推荐文章于 2022-08-31 12:37:32 发布 · 167 阅读

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1.项目结构

在这里插入图片描述
2.所需要的jar包

3.web.xml:配置DispatcherServlet

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<servlet>
	<servlet-name>action</servlet-name>
	<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
	
	<init-param>
		<!-- 把springmvc的配置文件放在类路径下，配置文件默认是放在/WEB-INF/下的 -->
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:spring-mvc.xml</param-value>
		
	</init-param>
	<load-on-startup>1</load-on-startup>
</servlet> 

<servlet-mapping>
	<servlet-name>action</servlet-name>
	<url-pattern>*.action</url-pattern>

</servlet-mapping>
  <display-name>springmvc</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
</web-app>

3.控制器类

package cn.itcast.springmvc.web.controller;

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

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;

public class HomeController extends AbstractController {

	@Override
	protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception {
		System.out.println("Hello,"+request.getContextPath()+request.getServletPath());
		return new ModelAndView("index");
	}

}

4.spring-mvc.xml:配置控制器转向页面的前缀和后缀

<?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"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
				http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd
				http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">

	<!-- 控制器 -->			
	<bean name="/hi.action" class="cn.itcast.springmvc.web.controller.HomeController"></bean>
	<!-- 内部资源视图解析器 prefix+logicName+suffix /WEB-INF/jsps+index+.jsp-->
	<bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<!-- 前缀 -->
		<property name="prefix" value="/WEB-INF/jsps/"/>
		<!-- 后缀 -->
		<property name="suffix" value=".jsp"/>
	</bean>
</beans>

5.view：WEB-INF/index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>SpringMVC</title>
</head>
<body>
	SpringMVC

</body>
</html>

6.在Webcontent目录下index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
	<jsp:forward page="/WEB-INF/jsps/index.jsp"></jsp:forward>
</body>
</html>

7.访问http://localhost:8080/springmvc/hi.action成功，则springmvc配置成功