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  • spring环境搭建和入门示例

    1、环境搭建

    1、创建mavenweb工程,导入jar包

    • spring-context
    • spring-web
    • spring-webmvc
    • commons-logging
    • log4j
    • javax.servlet-api
    • jsp-api

    2、在web.xml中配置DispatcherServlet

    要配置springmvc.xml的url和DispatcherServlet 所要拦截的url

        <?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">
        
        	<!-- The front controller of this Spring Web application, responsible for 
        		handling all application requests -->
        	<servlet>
        		<servlet-name>springDispatcherServlet</servlet-name>
        		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        		<init-param>
        			<param-name>contextConfigLocation</param-name>
        			<!-- 此为之后要创建的springmvc.xml的位置 -->
        			<param-value>classpath:springmvc.xml</param-value>
        		</init-param>
        		<load-on-startup>1</load-on-startup>
        	</servlet>
        
        	<!-- Map all requests to the DispatcherServlet for handling -->
        	<servlet-mapping>
        		<servlet-name>springDispatcherServlet</servlet-name>
        		<!-- 
        			DispatcherServlet所要拦截的url,“/”表示拦截“/index”这样的路径
        			 不会拦截“.jsp”这种带后缀的路径,“/*”会拦截所有路径
        		 -->
        		<url-pattern>/</url-pattern>
        	</servlet-mapping>
        </web-app>
    

    3、配置springmvc.xml

    配置注解扫描和视图解析器

        <?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"
        	xmlns:mvc="http://www.springframework.org/schema/mvc"
        	xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
        		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
        		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
        
        	<!-- 基本包扫描 -->
        	<context:component-scan
        		base-package="priv.wfq.spring" />
        	<!-- 视图解析器 -->
        	<bean id="internalResourceViewResolver"
        		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        		<!-- prefix:是指访问页面的前缀,指定页面存放的文件夹 -->
        		<property name="prefix" value="/WEB-INF/view/"></property>
        		<!-- suffix:是指文件的后缀名,常见的后缀名有html,jsp,php,txt,mp3 -->
        		<property name="suffix" value=".jsp"></property>
        	</bean>
        
        </beans>
    

    4、编写Controller类

        @Controller
        public class IndexController {
    
    	    //该注解表示用户访问url根目录后的路径,如“http://localhost:8080/spring/index”中的“/index”
    	    @RequestMapping("/index")
    	    public String index() {
    		    //返回存放页面的文件夹下的“index.jsp”页面
    		    return "index";
    	    }
        }
    

    5、编写index.jsp页面

    <%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="ISO-8859-1">
    <title>Insert title here</title>
    </head>
    <body>
    	<h1>这是index.jsp页面</h1>
    </body>
    </html>
    

    6、工程结构,仅供参考

    2、测试

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  • 原文地址:https://www.cnblogs.com/hamawep789/p/10846518.html
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