Spring mvc的文件上传
使用spring MVC框架进行文件上传,步骤如下:
首先向dispatcher-servlet.xml添加下面代码:
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="maxUploadSize" value="1024000000"/> <property name="resolveLazily" value="true"/> <property name="maxInMemorySize" value="4096"/> </bean>
控制类controller的代码如下:
@RequestMapping(value = "upload", method = RequestMethod.POST) public String upload(HttpServletRequest request, HttpServletResponse response) { FileOutputStream fileOutputStream = null; try { MultipartHttpServletRequest multipartHttpservletRequest = (MultipartHttpServletRequest) request; MultipartFile multipartFile = multipartHttpservletRequest.getFile("uploadFile"); String originalFileName = multipartFile.getOriginalFilename(); File file = new File("../webapps/upload"); if (!file.exists()) { file.mkdir(); } System.out.println(file.getAbsolutePath() + "\t" + originalFileName); fileOutputStream = new FileOutputStream(file + "/" + originalFileName); fileOutputStream.write(multipartFile.getBytes()); fileOutputStream.flush(); } catch (IOException ex) { Logger.getLogger(ExcelController.class.getName()).log(Level.SEVERE, null, ex); } finally { try { fileOutputStream.close(); } catch (IOException ex) { Logger.getLogger(ExcelController.class.getName()).log(Level.SEVERE, null, ex); } } return "success"; }
上传页面index.jsp如下:
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>上传</title> </head> <body> <div> <form enctype="multipart/form-data" method="post" action="upload"> <input type="file" name="uploadFile" /> <button onclick="this.form.submit();">上传</button> </form> </div> </body> </html>