基于Maven项目SpringMVC的基本配置

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基于Maven项目SpringMVC的基本配置

项目结构图如下：

1. Web.xml基本配置

    <listener>        <!-- 表示工程要以Spring的方式启动 -->        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>    </listener>    <servlet>        <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>        <url-pattern>*.do</url-pattern>    </servlet-mapping>    <welcome-file-list>        <welcome-file>index.jsp</welcome-file>    </welcome-file-list>

在web.xml中配置listener，表示工程已Spring方式启动，项目启动时，会到WEB-INF下寻找applicationContext.xml

配置DispatcherServlet，项目会以SpringMVC的方式启动，会到WEB-INF下寻找*-servlet.xml文件，*代表配置的servlet-name
2. springmvc-servlet.xml基本配置

<?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:aop="http://www.springframework.org/schema/aop"    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/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd    http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd  ">     <!-- 注解 -->     <!-- 启用默认配置 -->    <mvc:annotation-driven>        <mvc:message-converters register-defaults="true">            <!-- 配置Fastjson支持 -->            <bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">              <!-- 避免IE执行AJAX时,返回JSON出现下载文件 -->                <property name="supportedMediaTypes">                    <list>                      <!-- 这里顺序不能反，一定先写text/html,不然ie下出现下载提示 -->                        <value>text/html;charset=UTF-8</value>                        <value>application/json</value>                    </list>                </property>            </bean>        </mvc:message-converters>    </mvc:annotation-driven>    <!-- 对包中的类进行自动扫描 以完成bean的自动创建以及依赖注入 -->    <context:component-scan base-package="com.javacl.springmvc" />    <!-- HandlerAdapter -->    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />    <!-- ViewResolver -->    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <property name="prefix" value="/WEB-INF/jsp/" />        <property name="suffix" value=".jsp" />    </bean></beans>

3.pom.xml基本配置

        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-core</artifactId>            <version>4.2.4.RELEASE</version>        </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>com.alibaba</groupId>            <artifactId>fastjson</artifactId>            <version>1.2.8</version>        </dependency>

controller类基本写法

@Controllerpublic class Hello {    @RequestMapping("/hello")    public String hello() {        return "hello";    }    @RequestMapping("/save")    @ResponseBody    public List<String> save() {        List<String> json = new ArrayList<>();        json.add("1");        json.add("2");        return json;    }}

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