• spring mvc环境配置


    spring mvc将所有的请求都经过一个servlet控制器-DispatcherServlet,这个servlet的工作就是将一个客户端的request请求分发给不同的springmvc控制器,既然是一个控制器Servlet就需要在web.xml中配置。

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

    配置完以后,所有的请求都会被拦截到,根据上边的配置,DispatchServlet会载入springmvc-servlet.xml,在springmvc-servlet.xml中,我们需要配置springmvc的controller默认使用的是哪个视图,需要声明一个视图解析器bean:

        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
                <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
                <property name="prefix" value="/WEB-INF/views/"/>
                <property name="suffix" value=".jsp"/>
        </bean>

    为了成功在代码中使用注解代码,需要在此xml中指定注解功能开启

    <mvc:annotation-driven />

    指定控制器所在的包

    <context:component-scan base-package="com.springmvc.controller"/>

    加上标签的声明,springmvc-servlet.xml的形式为:

    <?xml version="1.0" encoding="UTF-8"?>
    
    <beans
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns="http://www.springframework.org/schema/beans"
        xmlns:mvc="http://www.springframework.org/schema/mvc" 
        xmlns:context="http://www.springframework.org/schema/context"
        xsi:schemaLocation="
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc.xsd
        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">
        <mvc:annotation-driven />
        <context:component-scan base-package="com.springmvc.controller"/>
        
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
                <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
                <property name="prefix" value="/WEB-INF/views/"/>
                <property name="suffix" value=".jsp"/>
        </bean>
    
    </beans>
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  • 原文地址:https://www.cnblogs.com/hpustudent/p/4312202.html
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