SpringMVC实现多文件（批量）上传

最新推荐文章于 2025-06-20 11:40:47 发布

weixin_33860737

最新推荐文章于 2025-06-20 11:40:47 发布

阅读量615

点赞数

CC 4.0 BY-SA版权

文章标签： java 测试前端 ViewUI

原文链接：http://www.cnblogs.com/lxcmyf/p/5472907.html

本文介绍如何使用SpringMVC实现多文件上传功能，包括必要的依赖包、控制器代码、前端表单设置及配置文件说明。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

1.springMVC实现多文件上传需要的包如图2.webroot下的结构如图所示

3.java代码：

 1 package cn.lxc.controller;
 2 
 3 import java.io.File;
 4 import java.io.FileOutputStream;
 5 import java.io.IOException;
 6 import java.io.InputStream;
 7 import java.io.OutputStream;
 8 
 9 import javax.servlet.http.HttpServletRequest;
10 
11 import org.springframework.stereotype.Controller;
12 import org.springframework.web.bind.annotation.RequestMapping;
13 import org.springframework.web.bind.annotation.RequestParam;
14 import org.springframework.web.multipart.commons.CommonsMultipartFile;
15 
16 @Controller
17 public class UploadController {
18     @RequestMapping("/upload.do")
19     public String upload(@RequestParam("file") CommonsMultipartFile file,HttpServletRequest req){
20         String path= req.getSession().getServletContext().getRealPath("/");
21         System.out.println(path);
22         String fileName=file.getOriginalFilename();
23         try {
24             InputStream is = file.getInputStream();
25             OutputStream os = new FileOutputStream(new File(path,fileName));
26             int len=0;
27             byte[] buffer = new byte[400];
28             while((len=is.read(buffer))!=-1){ //len为读取数据的字节长度
29                 os.write(buffer, 0, len); //三个参数分别为输出的字节数组、数据起始偏移量，输出字节长度
30             }
31             os.close();
32             is.close();
33         
34         } catch (IOException e) {
35             e.printStackTrace();
36         }
37         return "redirect:/index.jsp";
38     }
39 }

4.jsp代码

 1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
 2 <%
 3 String path = request.getContextPath();
 4 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 5 %>
 6 
 7 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 8 <html>
 9   <head>
10     <base href="<%=basePath%>">
11     <title>My JSP 'index.jsp' starting page</title>
12   </head>
13   <body>
14    <form action="upload.do" method="post" enctype="multipart/form-data">
15    file1:<input type="file" name="file"/>
16          <input type="submit" value="上传"/> 
17    </form>
18   </body>
19 </html>

5.springmvc-servlet.xml配置

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <beans xmlns="http://www.springframework.org/schema/beans"
 3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4     xmlns:p="http://www.springframework.org/schema/p"
 5     xmlns:context="http://www.springframework.org/schema/context"
 6     xsi:schemaLocation="
 7         http://www.springframework.org/schema/beans
 8         http://www.springframework.org/schema/beans/spring-beans.xsd
 9         http://www.springframework.org/schema/context
10         http://www.springframework.org/schema/context/spring-context.xsd">
11     <!-- 适配器 使用注解 -->
12     <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/> 
13     <!-- 渲染器 -->
14     <bean id="viewResolver"
15         class="org.springframework.web.servlet.view.UrlBasedViewResolver">
16         <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
17         <property name="prefix" value="/WEB-INF/jsp/"/>
18         <property name="suffix" value=".jsp"/>
19     </bean>
20     <!-- 文件上传配置 -->
21     <bean id="multipartResolver"  
22         class="org.springframework.web.multipart.commons.CommonsMultipartResolver">  
23         <property name="defaultEncoding" value="utf-8"></property>   
24         <property name="maxUploadSize" value="104857600"></property>  
25         <property name="maxInMemorySize" value="40960"></property>  
26     </bean>
27     <!-- 扫描注解包 -->
28     <context:component-scan base-package="cn.lxc.controller" />  
29 </beans>

6.web.xml配置

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
 3   <servlet>
 4     <servlet-name>springmvc</servlet-name>
 5     <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
 6     <load-on-startup>1</load-on-startup>
 7   </servlet>
 8   <servlet-mapping>
 9     <servlet-name>springmvc</servlet-name>
10     <url-pattern>*.do</url-pattern>
11   </servlet-mapping>
12 </web-app>

转载于:https://www.cnblogs.com/lxcmyf/p/5472907.html