servlet 注解

"@WebServlet"

@WebServlet(urlPatterns = "/hello")

"@MultipartConfig"

该注解只能用于servlet，不能用来标注Controller

@MultipartConfig(location = "c:/temp",maxFileSize=1024000000, maxRequestSize=1024000000,fileSizeThreshold=0)

但是在web.xml中配置multipart-config则都会生效

<servlet>
    <servlet-name>app</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>
    <load-on-startup>1</load-on-startup>
    <multipart-config>
      <!--单个文件最大，默认值为1MB, 100MB-->
      <max-file-size>102400000</max-file-size>
      <!--表单所有文件上传最大，1000M-->
      <max-request-size>1024000000</max-request-size>
      <!--最小文件上传大小-->
      <file-size-threshold>0</file-size-threshold>
    </multipart-config>
  </servlet>
  <servlet-mapping>
    <servlet-name>app</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>