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简单的SpringMVC框架需要引用的jar包[Spring4]

有一次在做项目的时候,我把spring-framework-4.2.3.RELEASE下libs文件下的所有jar包都丢进去了,后来浩哥看了说这怎么行?

今天整理一下一个用springMVC写得helloworld需要依赖哪些包

我们配置一个springMVC的时候

首先是配置web.xml

将请求交给spring的DispatcherServlet处理

 1 <?xml version="1.0" encoding="UTF-8"?> 2 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 3     xmlns="http://java.sun.com/xml/ns/javaee" 4     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" 5     id="WebApp_ID" version="3.0"> 6     <display-name>springmvctest</display-name> 7     <!-- 统一编码 --> 8     <filter> 9         <filter-name>charsetEncoding</filter-name>10         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>11         <init-param>12             <param-name>encoding</param-name>13             <param-value>UTF-8</param-value>14         </init-param>15         <init-param>16             <param-name>forceEncoding</param-name>17             <param-value>true</param-value>18         </init-param>19     </filter>20     <filter-mapping>21         <filter-name>charsetEncoding</filter-name>22         <url-pattern>/*</url-pattern>23     </filter-mapping>24     <!-- 前端控制器 -->25     <servlet>26         <servlet-name>springmvc</servlet-name>27         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>28         <!-- 加载/WEB-INF/[servlet-name]-servlet.xml -->29         <load-on-startup>1</load-on-startup>30     </servlet>31     <servlet-mapping>32         <servlet-name>springmvc</servlet-name>33         <url-pattern>/</url-pattern>34     </servlet-mapping>35 </web-app>

其次配置springmvc-servlet.xml

 1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans"   3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4     xmlns:p="http://www.springframework.org/schema/p"  5     xmlns:context="http://www.springframework.org/schema/context"  6     xmlns:mvc="http://www.springframework.org/schema/mvc"  7     xmlns:task="http://www.springframework.org/schema/task" 8     xsi:schemaLocation=" 9         http://www.springframework.org/schema/beans 10         http://www.springframework.org/schema/beans/spring-beans-4.2.xsd 11         http://www.springframework.org/schema/context 12         http://www.springframework.org/schema/context/spring-context-4.2.xsd 13         http://www.springframework.org/schema/mvc 14         http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd 15         http://www.springframework.org/schema/task 16         http://www.springframework.org/schema/task/spring-task-4.2.xsd">17 18     <!-- 扫描路径 -->19     <context:component-scan base-package="com.test.controller" >20         <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>21     </context:component-scan>22 23     <!-- 配置根视图 -->24     <mvc:view-controller path="/" view-name="index"/>25 26     <!-- 激活基于注解的配置 @RequestMapping, @ExceptionHandler,数据绑定 ,@NumberFormat ,27     @DateTimeFormat ,@Controller ,@Valid ,@RequestBody ,@ResponseBody等  -->28     <mvc:annotation-driven />29 30     <!-- 静态资源配置 -->31     <mvc:resources location="/assets/" mapping="/assets/**"></mvc:resources>32 33     <!-- 视图层配置 -->34     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">35         <property name="prefix" value="/WEB-INF/pages/"/>36         <property name="suffix" value=".jsp"/>37     </bean>38 39 </beans>

根据DispatcherServlet的完整路径来看,我们需要加入

spring-web-4.x.x.RELEASE.jar

接着启动服务查看报错并加入相关的jar

错误如下:

java.lang.NoClassDefFoundError: org/springframework/beans/factory/BeanNameAware

根据错误加入

spring-beans-4.x.x.RELEASE.jar

接着报错

java.lang.NoClassDefFoundError: org/springframework/context/EnvironmentAware

继续加入

spring-context-4.x.x.RELEASE.jar

接着报错

java.lang.NoClassDefFoundError: org/springframework/core/env/Environment

继续加人

spring-core-4.x.x.RELEASE.jar

接着报错

org/apache/commons/logging/LogFactory

继续加入

commons-logging-1.1.3.jar

接着报错

java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet

嗯?这个错是说找不到DispatcherServlet吗,可是在刚开始都已经将

spring-web-4.x.x.RELEASE.jar

加入了吗? 
原来DispatcherServlet虽然前缀是org.springframework.web.servlet可是它并不在spring-web-4.x.x.RELEASE.jar中 
它在

spring-webmvc-4.x.x.RELEASE.jar

中,好,将其加入 
接着报错

java.lang.NoClassDefFoundError: org/springframework/aop/TargetSource

引入

spring-aop-4.x.x.RELEASE.jar

接着报错

java.lang.NoClassDefFoundError: org/springframework/expression/ParserContext

引入

spring-expression-4.x.x.RELEASE.jar

到这里已经不报错了

然后开发Controller

写一个helloworld

 1 package com.test.controller; 2  3 import org.springframework.stereotype.Controller; 4 import org.springframework.ui.Model; 5 import org.springframework.web.bind.annotation.RequestMapping; 6 import org.springframework.web.bind.annotation.RequestMethod; 7  8 @Controller 9 @RequestMapping(value="http://www.mamicode.com/hello")10 public class HelloController {11     @RequestMapping(value="http://www.mamicode.com/world",method=RequestMethod.GET)12     public String hello(Model model){13         model.addAttribute("msg", "你好spring mvc");14         return "index";15     }16 }

最后开发展示层

 1 <%@ page language="java" contentType="text/html; charset=UTF-8" 2     pageEncoding="UTF-8"%> 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 4 <html> 5 <head> 6 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 7 <title>hello</title> 8 </head> 9 <body>10 <h1>Hello Spring</h1>11 ${msg }12 </body>13 </html>

好了打开浏览器访问 
http://localhost:8080/springmvctest/hello/world.html

技术分享

一个简单的helloworld完成

最后的最后贴上项目结构和jar包的结构还有下载jar包的地址

我的Dynamic Web Module 是3.0的

项目结构

技术分享

推荐使用Maven中央仓库,当然这个项目也可以建成一个maven项目

Maven中央仓库地址

http://mvnrepository.com/

简单的SpringMVC框架需要引用的jar包[Spring4]