eclipse+maven springMVC搭建

1.新建项目： 选择Maven Project

选择项目位置，这里我选择的是C:\Users\admin\workspace\practice

选择maven项目类型，这里选择webapp：

填写Group Id 和Artifact Id：

我这里不知道为什么，建立项目后，源代码文件夹有三个却只显示了一个，这里我把他们全部删除并重新创建四个源代码文件夹如下：

右键项目-properties-Deployment Assembly:

删除两个test文件夹以及target文件夹，使之成为下面的样子：

配置web.xml：

主要是filter以及servlet的配置

<?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">
  <display-name>practice2</display-name>

      <filter>
        <filter-name>CharacterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>utf-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <servlet>
        <servlet-name>practice2</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-servlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>practice2</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

</web-app>

在resources文件夹下创建spring-servlet.xml文件(此处文件名与web.xml中的配置相同即可，但后缀一定是 -servlet.xml)

配置spring-mvc.xml：

<?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:aop="http://www.springframework.org/schema/aop" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:p="http://www.springframework.org/schema/p"
    xsi:schemaLocation="
    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 
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop.xsd
    http://www.springframework.org/schema/mvc  
    http://www.springframework.org/schema/mvc/spring-mvc.xsd">
 
 
    <mvc:annotation-driven />
    <!-- 该配置为自动扫描配置的包下所有使用@Controller注解的类 -->
    <context:component-scan base-package="" />(base-packge暂且留白)
    <!-- 跳转页面使用，如果不配置的话，那么我们springmvc返回页面的时候，会被认为是请求url处理，所以就无法到达想要跳转的页面。这是因为web.xml里面配置的访问路径为'/'也就是所有访问路径都被认为是请求url -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/WEB-INF/view/" p:suffix=".jsp" p:order="5" />
    <mvc:resources mapping="/js/**" location="/WEB-INF/js/" />
    <mvc:resources mapping="/css/**" location="/WEB-INF/css/" />
    <mvc:resources mapping="/images/**" location="/WEB-INF/images/" />
    <mvc:resources mapping="/assets/js/**" location="/WEB-INF/assets/js/" />
    <mvc:resources mapping="/assets/css/**" location="/WEB-INF/assets/css/" />
    <mvc:resources mapping="/assets/fonts/**" location="/WEB-INF/assets/fonts/" />
    <mvc:resources mapping="/view/**" location="/WEB-INF/view/" />
</beans>

此时项目结构如下：

配置 pom.xml文件，引入依赖：

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>4.2.4.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>4.2.4.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>4.2.4.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.apache.geronimo.specs</groupId>
        <artifactId>geronimo-servlet_2.5_spec</artifactId>
        <version>1.2</version>
    </dependency>
  </dependencies>

在src/main/java文件夹下创建目录：com.practice.practice2.controller

顺便把之前留白的base-packge路径改成：com.practice.practice2.*

在目录下创建TestController：

package com.practice.practice2.controller;
 
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
 
@Controller
@RequestMapping(value = "practice/")
public class TestController {
 
    @RequestMapping(value = "index")
    public ModelAndView showIndex(HttpServletRequest request,HttpServletResponse response){
        ModelMap map = new ModelMap();
        String string = "Welcome to my page!";
        map.put("string", string);
        return new ModelAndView("/index",map);
    }
 
}

在WEB-INF目录下创建view文件夹

在该文件夹下创建index.jsp：

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!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=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
    ${string}
</body>
</html>

此时项目源文件目录如下：

把practice2项目放入tomcat：

启动，浏览器中输入：http://localhost:8080/practice2/practice/index

显示如下：

搭建成功！