controller:
@Controller
@RequestMapping("/mvc")
public class MvcController {
@RequestMapping("/hello")
public String hello(){
return "hello";
}
@RequestMapping(value="/upload",method=RequestMethod.POST)
public String upload(HttpServletRequest req) throws Exception{
MultipartHttpServletRequest mreq=(MultipartHttpServletRequest)req;
MultipartFile file = mreq.getFile("file");
String fileName = file.getOriginalFilename();
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
FileOutputStream fos = new FileOutputStream(req.getSession().getServletContext().getRealPath("/")+
"upload/"+sdf.format(new Date())+fileName.substring(fileName.lastIndexOf(".")));
fos.write(file.getBytes());
fos.flush();
fos.close();
return "helloworld";
}
}
springmvc-servlet.xml(在src目录下)
<?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: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/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd">
<context:component-scan base-package="test.SpringMVC"></context:component-scan>
<mvc:default-servlet-handler/>
<mvc:annotation-driven></mvc:annotation-driven>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"
id="internalResourceViewResolver">
<!-- 前缀 -->
<property name="prefix" value="/WEB-INF/jsp/"></property>
<!-- 后缀 -->
<property name="suffix" value=".jsp"></property>
</bean>
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxUploadSize" value="102400000"></property>
</bean>
</beans>
html表单页面:
<form action="mvc/upload" method="post" enctype="multipart/form-data">
<input type="file" name="file"><br>
<input type="submit" value="submit">
</form>
spring在web中的配置
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc-servlet.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
最后别忘了那些包。