IDEA中SpringMVC配置文件详解

原创

Charles-LZ

修改于 2021-01-18 06:38:37

5970

<?xml version="1.0" encoding="UTF-8" ?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                xsi="http://java.sun.com/xml/ns/javaee">
  <display-name>Archetype Created Web Application</display-name>

  <!--配置编码过滤器，解决jsp中出现的乱码问题-->
  <filter>
    <filter-name>CharacterEncodingFilter</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>
  </filter>
  <filter-mapping>
    <filter-name>CharacterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  <!--会根据几个条件对post请求做出转换，用在jsp中使用REST-->
  <filter>
    <filter-name>hiddenHttpMethodFilter</filter-name>
    <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>hiddenHttpMethodFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  <!--配置核心控制器，有两种方式，详情见下方-->
  <servlet>
    ....
  </servlet>
  <servlet-mapping>
   ...
  </servlet-mapping>
</web-app>

在web.xml中，SpringDispatcherServlet（核心控制器）的配置文件可以有两种方式：

第一种，文件默认放在WEB-INF下，名称为<servlet-name>.xml，下例就是springDispatcherServlet.xml。

<servlet>
  <servlet-name>springDispatcherServlet</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
  <servlet-name>springDispatcherServlet</servlet-name>
  <url-pattern>/</url-pattern>
</servlet-mapping>

第二种

 <servlet>
    <servlet-name>springDispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!--可以设置springMVC配置文件及名称-->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springMVC.xml</param-value>
    </init-param>
  </servlet>
  <servlet-mapping>
    <servlet-name>springDispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>