第一个SpringMVC

ゝ一纸荒年。 2022-03-09 10:41 341阅读 0赞

1.项目结构

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3JqMjAxNzIxMTgxMQ_size_16_color_FFFFFF_t_70]  
2.所需要的jar包  
![在这里插入图片描述][20190314081356368.png]  
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>
    		
    		<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">
    
    				
    	<bean name="/hi.action" class="cn.itcast.springmvc.web.controller.HomeController"></bean>
    	
    	<bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    		
    		<property name="prefix" value="/WEB-INF/jsps/"/>
    		
    		<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

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3JqMjAxNzIxMTgxMQ_size_16_color_FFFFFF_t_70]: /images/20220309/e066c2fdabbf4af583c63732481b8133.png
[20190314081356368.png]: /images/20220309/9e387933449c4d70ac438e4bc25c4857.png