简单的SpringMVC框架需要引用的jar包[Spring4]

时间：2017-02-02 13:56:08 阅读：294 评论：0 收藏：0 [点我收藏+]

标签：class drive csdn html 相关 ack 前端控制器 inf htm

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="/hello")
10 public class HelloController {
11     @RequestMapping(value="/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>