搭建spring mvc项目

在之前搭建maven项目这篇的基础上继续集成，引入spring mvc支持

一、添加jar包引用

修改pom.xml文件，加入：（其他关联的jar包maven会自动引用）

<!-- 项目属性 -->
<properties>
    <spring.version>3.2.9.RELEASE</spring.version>
</properties>
 
<!-- 依赖项定义 -->
<dependencies>
 
    <!-- spring -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
    <version>${spring.version}</version>
    </dependency>
    <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-core</artifactId>
    <version>${spring.version}</version>
    </dependency>
    <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webmvc</artifactId>
    <version>${spring.version}</version>
    </dependency>
</dependencies>

如图：

二、添加spring mvc支持

1、修改web.xml文件，加入spring mvc核心代码：

<!-- spring核心 -->
<servlet>
    <servlet-name>springMvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <!-- spring mvc配置文件(classpath*:不仅包含class路径,还包括jar文件中(class路径)) -->
        <param-value>classpath*:/spring-mvc.xml</param-value>
    </init-param>
    <!-- 在容器启动时以最高的优先级加载当前servlet -->
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>springMvc</servlet-name>
    <!-- 拦截所有url(也可以写*.do,只拦截.do结尾的url) -->
    <url-pattern>/</url-pattern>
</servlet-mapping>

2、加入其他配置文件路径(以后扩展功能的时候需要)和监听器

<!-- 配置文件 -->
<context-param>
    <param-name>contextConfigLocation</param-name>
    <!-- 配置文件命名统一用spring-context开头 -->
    <param-value>classpath*:/spring-context*.xml</param-value>
</context-param>  
 
<!-- spring监听器(在容器启动时自动装配配置文件) -->
<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

3、加入字符集过滤器，防止jsp和java交互时的乱码问题(一定要加的)

<!-- 字符集过滤器 -->
<filter>
    <filter-name>encodingFilter</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>
    <init-param>
    <param-name>forceEncoding</param-name>
    <param-value>true</param-value>
    </init-param>
</filter>
<filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

web.xml最后如图：

三、添加spring mvc配置文件

在"src/main/resources"代码文件夹中新建文件"spring-mvc.xml"，内容为：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    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:tx="http://www.springframework.org/schema/tx" 
    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
    http://www.springframework.org/schema/tx
    http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
     
    <description>Spring MVC Configuration</description>
     
    <!-- 使用Annotation自动注册Bean -->
    <context:component-scan base-package="org.xs.demo1" use-default-filters="false">
        <!-- 子上下文中只注册Controller等与web层相关的bean -->
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
    </context:component-scan>
     
    <!-- 注册两种注解映射 -->
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter" />
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping" />
     
    <!-- 定义视图文件解析 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:order="3">
    <property name="contentType" value="text/html" />
    <!-- jsp页面的位置 -->
    <property name="prefix" value="/WEB-INF/views/" />
    <property name="suffix" value=".jsp" />
    </bean>
</beans>