Created
January 13, 2012 03:19
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Servlet 3.0's FileUpload Sample
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| @WebServlet("/upload") | |
| @MultipartConfig(location = "/tmp") | |
| public class FileUploadServlet extends HttpServlet { | |
| @Override | |
| protected void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException { | |
| getServletContext().getRequestDispatcher("/WEB-INF/views/fileUpload.jsp").forward(req, res); | |
| } | |
| @Override | |
| protected void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException { | |
| Collection<Part> parts = req.getParts(); | |
| for(Part part : parts) { | |
| System.out.println("Name:"); | |
| System.out.println(part.getName()); | |
| System.out.println("Header: "); | |
| for(String headerName : part.getHeaderNames()) { | |
| System.out.println(headerName); | |
| System.out.println(part.getHeader(headerName)); | |
| } | |
| System.out.println("Size: "); | |
| System.out.println(part.getSize()); | |
| part.write(part.getName() + "-down"); | |
| } | |
| res.sendRedirect("/upload"); | |
| } | |
| } |
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| <bean id="multipartResolver" | |
| class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> | |
| <!-- one of the properties available; the maximum file size in bytes --> | |
| <property name="maxUploadSize" value="100000"/> | |
| </bean> |
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| <bean id="multipartResolver" class="org.springframework.web.multipart.support.StandardServletMultipartResolver"> | |
| </bean> |
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| @Controller | |
| public class SpringFileUploadController{ | |
| @RequestMapping(value = "/s/upload", method = RequestMethod.GET) | |
| public String fileUploadForm(){ | |
| return "/supload"; | |
| } | |
| @RequestMapping(value = "/s/upload", method = RequestMethod.POST) | |
| public String fileUploadSubmit(@RequestParam("file") Part part){ | |
| System.out.println(part.getName()); | |
| System.out.println(part.getHeader("content-disposition")); | |
| System.out.println(part.getContentType()); | |
| System.out.println(part.getSize()); | |
| try { | |
| part.write("sample"); | |
| } catch (IOException e) { | |
| throw new RuntimeException(e); | |
| } | |
| return "redirect:/s/upload"; | |
| } | |
| } |
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| <!doctype html> | |
| <html> | |
| <head> | |
| <meta charset="UTF-8"/> | |
| <title>File Upload Sample</title> | |
| </head> | |
| <body> | |
| <form action="/upload" enctype="multipart/form-data" method="post"> | |
| <p> | |
| <label>Select a file: </label> | |
| <input type="file" name="file"/> | |
| </p> | |
| <input type="submit" value="Upload" /> | |
| </form> | |
| </body> | |
| </html> |
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| <servlet> | |
| <servlet-name>spring</servlet-name> | |
| <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> | |
| <init-param> | |
| <param-name>contextConfigLocation</param-name> | |
| <param-value>classpath*:/spring-servlet.xml</param-value> | |
| </init-param> | |
| <multipart-config> | |
| <max-file-size>52428800</max-file-size> | |
| <max-request-size>52428800</max-request-size> | |
| <file-size-threshold>0</file-size-threshold> | |
| </multipart-config> | |
| </servlet> |
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It doesnt use Servlet 3.0 mutlipart handling, since you are using CommonsMultipartResolver :)