搭建springmvc

对于SpringMvc来说，搭建这框架，首先引入相应的包。如下：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.abc</groupId>
  <artifactId>testSpringMvc</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>

  
   <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <spring.version>4.2.0.RELEASE</spring.version>
    <jackson.version>2.6.7</jackson.version>
  </properties>
  
  <dependencies>
  <!-- 文件上传的依赖 -->
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.3.1</version>
        </dependency>
  <!-- Jackson Json处理工具包 -->
   <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.9.3</version>
    </dependency>
    <dependency>  
        <groupId>org.springframework</groupId>  
        <artifactId>spring-core</artifactId>  
        <version>${spring.version}</version>  
    </dependency> 
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${spring.version}</version>
    </dependency> 
    <dependency>  
        <groupId>org.springframework</groupId>  
        <artifactId>spring-webmvc</artifactId>  
        <version>${spring.version}</version>  
    </dependency>  
    <dependency>  
        <groupId>org.springframework</groupId>  
        <artifactId>spring-beans</artifactId>  
        <version>${spring.version}</version>  
    </dependency>  
    <dependency>  
        <groupId>org.springframework</groupId>  
        <artifactId>spring-context</artifactId>  
        <version>${spring.version}</version>  
    </dependency>  
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-expression</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-tx</artifactId>
    <version>${spring.version}</version>
    </dependency>
    <dependency>  
        <groupId>jstl</groupId>  
        <artifactId>jstl</artifactId>  
        <version>1.2</version>  
    </dependency>  
    <dependency>  
        <groupId>taglibs</groupId>  
        <artifactId>standard</artifactId>  
        <version>1.1.2</version>  
    </dependency>
    <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
    </dependency>  

    <dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.4</version>
    </dependency>

        <!-- log4j end -->
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.6.1</version>
                <configuration>
                    <skipTests>true</skipTests>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
        </plugins>
        <finalName>testSpringMvc</finalName>  <!-- 这里是项目名 -->
    </build>
  
</project>

以上包有点多，这里不做仔细介绍了。有兴趣的可以看看具体代表含义。

由于是web端项目，所以web.xml文件中也应该有相应的内容。具体如下：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>testSpringMvc</display-name>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  
   <display-name>springMVC</display-name>
<!-- 编码过滤器，以UTF8编码，解决POST乱码问题 -->
    <filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
   <servlet>
<!--在web.xml（web程序的入口） 配置了DispatcherServlet,并且指定所有以.do结尾的请求全部交给DispatcherServlet来处理-->
         <servlet-name>springmvc</servlet-name>
         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
         <load-on-startup>1</load-on-startup>
    </servlet>
   
   <servlet-mapping>
            <servlet-name>springmvc</servlet-name>
<!--配置/*会拦截所有请求，包括静态页面 -->
            <url-pattern>*.do</url-pattern>
    </servlet-mapping>
  
</web-app>

 接下来就是比较重要的配置文件，就是SpringMvc中的配置文件，命名规则按照{name}-servlet.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: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.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">


    <!-- 配置注解驱动，会默认的加载SpringMVC推荐使用 RequestMappingHandlerMapping, RequestMappingHandlerAdapter -->
    <mvc:annotation-driven />
    <!-- 开启注解扫描 扫描控制器包，扫描包下面类头部的@Controller @RequestMapping-->
        <context:component-scan base-package="cn.cool.controller"/>
    
    <!-- 视图解析器 -->
    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!-- 视图前缀 -->
        <property name="prefix" value="/WEB-INF/views/"></property>
        <!-- 视图后缀 -->
        <property name="suffix" value=".jsp"></property>
    </bean>
<!--     <mvc:interceptors> -->
<!--         <mvc:interceptor> -->
<!--             <mvc:mapping path="拦截的请求地址定义"/> -->
<!--             <bean class="拦截器类，该类必须实现HandlerInterceptor接口"></bean> -->
<!--         </mvc:interceptor> -->
<!--     </mvc:interceptors> -->

    <!-- 定义文件上传解析器 -->
<!--     <bean id="multipartResolver" -->
<!--         class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> -->
        <!-- 设定默认编码 -->
<!--         <property name="defaultEncoding" value="UTF-8"></property> -->
        <!-- 设定文件上传的最大值5MB，5*1024*1024 -->
<!--         <property name="maxUploadSize" value="5242880"></property> -->
<!--     </bean> -->
    
    <!-- 解决静态资源被拦截的问题 -->
    <mvc:default-servlet-handler/>
</beans>

这些都是一些比较重要的配置文件，剩下的就是类，和页面。这里不做过多的解释。