springmvc 的web.xml
时间: 2024-01-06 13:21:58 浏览: 32
在SpringMVC中,web.xml文件是用来配置DispatcherServlet的。DispatcherServlet是整个SpringMVC的核心,它负责接收所有的请求并将请求分发给对应的Controller进行处理。
在web.xml中,我们需要配置DispatcherServlet的映射路径、上下文配置文件、字符编码等信息。以下是一个简单的web.xml配置示例:
```
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<display-name>SpringMVC</display-name>
<!-- 配置DispatcherServlet -->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 配置SpringMVC上下文配置文件 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring-mvc.xml</param-value>
</init-param>
<!-- 配置DispatcherServlet映射路径 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<!-- 配置DispatcherServlet映射路径 -->
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 配置字符编码过滤器 -->
<filter>
<filter-name>encodingFilter</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>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
```