SpringMvc后端往往前端

最新推荐文章于 2024-05-09 09:39:52 发布

原创最新推荐文章于 2024-05-09 09:39:52 发布 · 962 阅读

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本文介绍了Spring MVC框架的基本配置步骤，包括web.xml的设置、spring-mvc.xml的配置细节，以及如何通过DispatcherServlet作为前端控制器进行请求分发。

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Spring的处理流程图

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1.先配置web.xml

<?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">

<!-启动时靠servlet来启动配置文件-->

 <servlet>

           <!-前端控制器-->

    <servlet-name>springMVCServletDispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

     <!-默认找/web-inf/[servlet的名称]-servlet.xml->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath*:spring-mvc.xml</param-value>    <!-配置web.xml就配置spring-mvc.xml->

    </init-param>
    <load-on-startup>1</load-on-startup>    <!-servlet一启动就加载->

  </servlet>
  <servlet-mapping>
    <servlet-name>springMVCServletDispatcher</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

        <!-- 添加springMVC注解支持 -->
	<mvc:annotation-driven></mvc:annotation-driven>

         
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
</web-app>

2.配置前端控制器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:aop="http://www.springframework.org/schema/aop" 
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
	http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
		http://www.springframework.org/schema/context 
		http://www.springframework.org/schema/context/spring-context-4.3.xsd
		http://www.springframework.org/schema/aop 
		http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
		http://www.springframework.org/schema/tx 
		http://www.springframework.org/schema/tx/spring-tx-4.3.xsd
		http://www.springframework.org/schema/mvc
		http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd">
	
	<!-- 在spring MVC中，只用管理控制器  -->

  
	<context:component-scan base-package="com.rsy">        <!-- 管理控制器com.rsy下的所有子包-->

		<!-- 只管理控制器, -->
		<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
		<context:include-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice"/>
	</context:component-scan>

</beans>

3.配置Heardcliqi