使用eclipse搭建spring MVC 框架

時間 2019-11-15

標籤使用 eclipse 搭建 spring mvc 框架欄目 Eclipse 简体版

原文原文鏈接

本文爲博主原創文章，未經博主容許不得轉載。javascript

環境：

Eclipse Java EE IDE for Web Developershtml

Version: Neon Release (4.6.0)java

Dynamic Web Module 3.1web

Java 1.8spring

JavaScript 1.0spring-mvc

Apache Tomcat 9.0mvc

spring-framework-4.0.0.RELEASEapp

文件結構：eclipse

步驟

1、創建web項目jsp

運用eclipse創建Dynamic Web Project.具體過程略。

2、修改web.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    <display-name>spring_framework</display-name>
    
    <welcome-file-list>
		<welcome-file>index.jsp</welcome-file>
	</welcome-file-list>
	
    <servlet>
        <servlet-name>springMVC</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/springMVC-servlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springMVC</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

</web-app>

攔截全部請求中含有‘/’的url

3、創建springMVC-servlet.xml文件

<?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"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	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  
    http://www.springframework.org/schema/mvc  
    http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd  
    ">
	<!-- 默認掃描的包路徑 -->
	<context:component-scan base-package="com.cc.controller" />

	<!-- 添加註解驅動 -->
	<mvc:annotation-driven />

	<!-- 定義跳轉的文件的先後綴 -->
	<bean id="viewResolver"
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/" />
		<property name="suffix" value=".jsp" />
	</bean>
	
</beans>

將controller中返回的String字符串加上前綴與後綴，並去項目中找到相應的位置

4、創建controller

package com.cc.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class PageController {
	@RequestMapping("/login")
	public String login(Model model) {
		model.addAttribute("msg", "controller to test login");
		return "login";
	}

}

將鍵值放入model中

5、創建login.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<!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>login test</title>
</head>
<body>
	<h3>${msg}</h3>
</body>
</html>

6、驗證結果

註釋：

依賴的jar包須要複製到WebContent->WEB-INF->lib下。若是將依賴的包只是經過右擊項目，Build Path->Configure Build Path->Libraries->Add External JARs，則輸入url：http://localhost:8080/springmvc_test/login，結果爲HTTP Status 404

其中不添加commons-logging-1.2.jar包時，會報以下錯誤