一、同步上传文件

导入common-fileupload这个jar包。
配置 springmvc-servlet.xml

<?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-4.1.xsd

        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">

 <!-- 激活@Required @Autowired @Resource等标注-->

    <context:annotation-config></context:annotation-config>  

      <!-- DispatcherServlet上下文，扫描base-package包中的类，并自动加载到spring容器中 -->

    <context:component-scan base-package="com.shyroke.controller">

    </context:component-scan>  

  <!--   启用@Component，@Controller，@Service，@Repository注解驱动 -->

      <mvc:annotation-driven/>    

     <mvc:default-servlet-handler />

     <!-- 文件处理 -->

   <bean id="multipartResolver"

        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">

        <property name="defaultEncoding" value="UTF-8"></property>

        <property name="maxUploadSize" value="10485760000"></property>

        <property name="maxInMemorySize" value="40960"></property>

    </bean>

    <!-- 配置视图解析器 -->

        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

        <property name="prefix" value="/views/"/>

        <property name="suffix" value=".jsp"/>

    </bean>

</beans>

index.jsp

<body>

    <form method="post" id="file_form1" action="<%=request.getContextPath()%>/uploadController/uploadForm"

          enctype="multipart/form-data">

        <input type="text" name="dogid" id="dogid"     value="用户名"/>

        <input type="text" name="dogname" id="dogname" value="复选框1"/>

        <input type="file" name="faceimage" id="faceimage" size="40"/>

        <input type="submit" value="上传文件"/>

    </form>

</body>

controller

package com.shyroke.controller;

import java.io.File;

import java.io.InputStream;

import javax.servlet.ServletContext;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestParam;

import org.springframework.web.multipart.MultipartFile;

import com.shyroke.bean.DogBean;

@Controller

@RequestMapping(value="/uploadController")

public class UploadController {

    @Autowired

    private ServletContext context;

    @RequestMapping(value = "/uploadForm")

    public String uploadFile(

            DogBean dogBean,

            @RequestParam(name = "faceimage", required = false) MultipartFile faceimage)

            throws Exception {

        System.out.println(dogBean);

        System.out.println(faceimage);

        String dogid = dogBean.getDogid();

        String dogname = dogBean.getDogname();

        String name = faceimage.getName();

        String filename = faceimage.getOriginalFilename();

        InputStream inputStream = faceimage.getInputStream();

        /**

         * 输出控件的名称,faceimage

         */

        System.out.println("name = " + name);

        /**

         * 文件的名称

         */

        System.out.println("filename = " + filename);

        /**

         * 获取文件流

         */

        System.out.println("inputStream = " + inputStream);

        String uploadDir = context.getRealPath("/uploadfiles");

        System.out.println(uploadDir);

        filename = System.currentTimeMillis() + "_" + filename;

        File destFile = new File(uploadDir + "/" + filename);

        faceimage.transferTo(destFile);

        return null;

    }

}

二、异步上传文件

导入common-fileupload这个jar包、配置 springmvc-servlet.xml 如上
index.jsp

    2：ajax来提交。

    <form method="post" id="file_form2" action=""

          enctype="multipart/form-data">

        <input type="text" name="dogid" id="dogid"     value="用户名"/>

        <input type="text" name="dogname" id="dogname" value="复选框1"/>

        <input type="file" name="faceimage" id="faceimage" size="40"/>

        <input type="button" value="上传文件" onclick="uploadFile();"/>

    </form>

controller

package com.shyroke.controller;

import java.io.File;

import java.io.InputStream;

import java.util.HashMap;

import java.util.Map;

import javax.servlet.ServletContext;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestParam;

import org.springframework.web.bind.annotation.ResponseBody;

import org.springframework.web.multipart.MultipartFile;

import com.shyroke.bean.DogBean;

@Controller

@RequestMapping(value = "/uploadController")

public class UploadController {

    @Autowired

    private ServletContext context;

    @RequestMapping(value = "/uploadAjax")

    @ResponseBody

    public Map<String, Object> uploadAjax(DogBean dogBean,

            @RequestParam(name = "faceimage", required = false) MultipartFile faceimage) throws Exception {

        System.out.println(dogBean);

        System.out.println(faceimage);

        String dogid = dogBean.getDogid();

        String dogname = dogBean.getDogname();

        String name = faceimage.getName();

        String filename = faceimage.getOriginalFilename();

        InputStream inputStream = faceimage.getInputStream();

        /**

         * 输出控件的名称,faceimage

         */

        System.out.println("name = " + name);

        /**

         * 文件的名称

         */

        System.out.println("filename = " + filename);

        /**

         * 获取文件流

         */

        System.out.println("inputStream = " + inputStream);

        String uploadDir = context.getRealPath("/uploadfiles");

        System.out.println(uploadDir);

        Map<String, Object> jsonMap = new HashMap<String, Object>();

        try {

            filename = System.currentTimeMillis() + "_" + filename;

            File destFile = new File(uploadDir + "/" + filename);

            faceimage.transferTo(destFile);

            jsonMap.put("flag", true);

        } catch (Exception e) {

            jsonMap.put("flag", false);

            jsonMap.put("errorMsg", "错误");

        }

        return jsonMap;

    }

}

巴特西

（十）springmvc之文件的处理

一、同步上传文件

导入common-fileupload这个jar包。

二、异步上传文件

导入common-fileupload这个jar包、配置 springmvc-servlet.xml 如上

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