> > The basic functionality works since this is how the Tomcat Manager > application does file uploads (although it is configured in web.xml > rather than with annotations). > > I'd check web.xml. Does it have the correct schema definition for a > servlet 3.0 webapp? If not, Tomcat won't scan for annotations. > >
Mark, below is the application web.xml. Below that is revised servlet code that checks if getPart() returns null rather than throwing the error. I have not touched the default tomcat 7.0.6 /conf/web.xml <?xml version="1.0" encoding="UTF-8"?> <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd";> <context-param> <param-name>javax.faces.PROJECT_STAGE</param-name> <param-value>Development</param-value> </context-param> <servlet> <servlet-name>Faces Servlet</servlet-name> <servlet-class>javax.faces.webapp.FacesServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>Faces Servlet</servlet-name> <url-pattern>/faces/*</url-pattern> </servlet-mapping> <session-config> <session-timeout> 30 </session-timeout> </session-config> <welcome-file-list> <welcome-file>faces/index.xhtml</welcome-file> </welcome-file-list> </web-app> import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.annotation.MultipartConfig; import javax.servlet.annotation.WebServlet; @WebServlet(name = "FileUpload", urlPatterns = { "/fileUpload.up"} ) @MultipartConfig public class FileUpload extends HttpServlet { protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); try { out.println("<html>"); out.println("<head>"); out.println("<title>Servlet UploadFile</title>"); out.println("</head>"); out.println("<body>"); out.println("<form action='fileUpload.up' method='POST' enctype='multipart/form-data' >"); out.println("<input type='file' name='fileData' />"); out.println("<br /><br />"); out.println("<input type='submit' value='Continue'/>"); out.println("</form></body>"); out.println("</html>"); } finally { out.close(); } } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { javax.servlet.http.Part part = request.getPart("fileData"); if (part == null) { PrintWriter out = response.getWriter(); try { out.println("<html>"); out.println("<head>"); out.println("<title>Servlet UploadFile</title>"); out.println("</head>"); out.println("<body>"); out.println("<p>Part is null</p?"); out.println("</body></html>"); } catch (Exception e) { } finally { out.close(); } } } @Override public String getServletInfo() { return "Short description"; } }
