具体代码请访问springmvc的具体操作步骤

1.导入坐标

<dependency>
      <groupId>commons-fileupload</groupId>
      <artifactId>commons-fileupload</artifactId>
      <version>1.4</version>
    </dependency>
    <dependency>
      <groupId>commons-io</groupId>
      <artifactId>commons-io</artifactId>
      <version>2.5</version>
    </dependency>

2.编写upload.jsp文件

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
    <form action="${pageContext.request.contextPath}/user/report22" method="post" enctype="multipart/form-data">
        名称：<input type="text" name="username"><br>
        文件：<input type="file" name="upload"><br>
        <input type="submit" value="提交">
    </form>
</body>
</html>

3.配置spring-mvc配置文件

<!--    配置文件上传解析器-->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="defaultEncoding" value="UTF-8"/>
        <property name="maxUploadSize" value="50000"/>

    </bean>

4.编写Controller层

@RequestMapping("/report22")
    @ResponseBody
    public void save22(String username, MultipartFile upload) throws IOException {
        System.out.println(username);
        //获得上传文件名称
        String originalFilename = upload.getOriginalFilename();
        //上传到哪个磁盘路径下
        upload.transferTo(new File("G:\\upload\\"+originalFilename));
    }

5.启动tomcat访问http://localhost:8080/upload.jsp

然后填写张三，选择emp.txt文件点击提交

6.结果

SpringMVC-文件上传_上传

SpringMVC-文件上传_上传_02

//多文件上传可以采用数组形式