<!-- SpringMVC上传文件时，需要配置MultipartResolver处理器 -->    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">        <property name="defaultEncoding" value="UTF-8"/>        <!-- 指定所上传文件的总大小不能超过200KB。注意maxUploadSize属性的限制不是针对单个文件，而是所有文件的容量之和 -->        <property name="maxUploadSize" value="200000"/>    </bean>    <!-- SpringMVC在超出上传文件限制时，会抛出org.springframework.web.multipart.MaxUploadSizeExceededException -->    <!-- 该异常是SpringMVC在检查上传的文件信息时抛出来的，而且此时还没有进入到Controller方法中 -->    <bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">        <property name="exceptionMappings">            <props>                <!-- 遇到MaxUploadSizeExceededException异常时，自动跳转到/WEB-INF/ftl/common/error_fileupload.ftl页面 -->                <prop key="org.springframework.web.multipart.MaxUploadSizeExceededException">/common/error_fileupload</prop>            </props>        </property>    </bean>

package com.zyz.action;import org.springframework.stereotype.Controller;import org.springframework.ui.ModelMap;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.multipart.MultipartFile;import javax.servlet.http.HttpServletRequest;import java.io.File;import java.util.Date;/** * Created by zyz on 2016-8-26. */@Controllerpublic class UploadAction {    @RequestMapping(value = "/uploadform",method = RequestMethod.GET)    public String uploadForm(){        return "uploadForm";    }    @RequestMapping(value = "/upload",method = RequestMethod.POST)    public String upload(@RequestParam(value = "http://www.mamicode.com/file", required = false) MultipartFile file, HttpServletRequest request, ModelMap model) {        System.out.println("开始");        String path = request.getSession().getServletContext().getRealPath("upload");//        String fileName = file.getOriginalFilename();        String fileName = new Date().getTime()+".jpg";        System.out.println(path);        File targetFile = new File(path, fileName);        if(!targetFile.exists()){            targetFile.mkdirs();        }        //保存        try {            file.transferTo(targetFile);        } catch (Exception e) {            e.printStackTrace();        }        model.addAttribute("fileUrl", request.getContextPath()+"/upload/"+fileName);        return "uploadResult";    }}