SpringMVC文件上传

添加文件上传相关依赖

<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.3</version>
</dependency>

配置文件上传解析器(CommonsMultipartResolver)

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- 必须和用户JSP 的pageEncoding属性一致，以便正确解析表单的内容 -->
<property name="defaultEncoding" value="UTF-8"></property>
<!-- 文件最大大小(字节) 1024*1024*50=50M-->
<property name="maxUploadSize" value="52428800"></property>
<!--resolveLazily属性启用是为了推迟文件解析，以便捕获文件大小异常-->
<property name="resolveLazily" value="true"/>
</bean>

　　表单提交方式为method="post"

<form action="/book/upload" method="post" enctype="multipart/form-data">
    请选择文件：<input type="file" name="axc"/>
    <input type="submit" value="确认">
</form>

文件项用spring提供的MultipartFile进行接收

 @RequestMapping("/upload")
    public String upload(HttpServletRequest req, MultipartFile axc) {
        String fileName=axc.getOriginalFilename();
        String ContentType=axc.getContentType();
        try {
            FileUtils.copyInputStreamToFile(axc.getInputStream(),new File("E:/mabatis/"+fileName));
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "redirect:/book/list";
    }