How to upload files to server using JSP Servlet

Question

How can I upload files to server using JSP Servlet  I tried this    lt form action  upload  method  post  gt       lt input type  text  name  description    gt       lt input type  file  name  file    gt       lt input type  submit    gt   lt  form gt    However  I only get the file name  not the file content  When I add  enctype  multipart form-data  to the  lt form gt   then request getParameter   returns null    During research I stumbled upon Apache Common FileUpload  I tried this   FileItemFactory factory   new DiskFileItemFactory    ServletFileUpload upload   new ServletFileUpload factory   List items   upload parseRequest request      This line is where it died    Unfortunately  the servlet threw an exception without a clear message and cause  Here is the stacktrace   SEVERE  Servlet service   for servlet UploadServlet threw exception javax servlet ServletException  Servlet execution threw an exception     at org apache catalina core ApplicationFilterChain internalDoFilter ApplicationFilterChain java 313      at org apache catalina core ApplicationFilterChain doFilter ApplicationFilterChain java 206      at org apache catalina core StandardWrapperValve invoke StandardWrapperValve java 233      at org apache catalina core StandardContextValve invoke StandardContextValve java 191      at org apache catalina core StandardHostValve invoke StandardHostValve java 127      at org apache catalina valves ErrorReportValve invoke ErrorReportValve java 102      at org apache catalina core StandardEngineValve invoke StandardEngineValve java 109      at org apache catalina connector CoyoteAdapter service CoyoteAdapter java 298      at org apache coyote http11 Http11Processor process Http11Processor java 852      at org apache coyote http11 Http11Protocol Http11ConnectionHandler process Http11Protocol java 588      at org apache tomcat util net JIoEndpoint Worker run JIoEndpoint java 489      at java lang Thread run Thread java 637

User · Answer

Sending multiple file for file we have to use enctype="multipart/form-data"
and to send multiple file use multiple="multiple" in input tag

<form action="upload" method="post" enctype="multipart/form-data">
 <input type="file" name="fileattachments"  multiple="multiple"/>
 <input type="submit" />
</form>

User · Answer

Introduction  To browse and select a file for upload you need a HTML  lt input type  file  gt  field in the form  As stated in the HTML specification you have to use the POST method and the enctype attribute of the form has to be set to  multipart form-data     lt form action  upload  method  post  enctype  multipart form-data  gt       lt input type  text  name  description    gt       lt input type  file  name  file    gt       lt input type  submit    gt   lt  form gt    After submitting such a form  the binary multipart form data is available in the request body in a different format than when the enctype isn t set   Before Servlet 3 0  the Servlet API didn t natively support multipart form-data  It supports only the default form enctype of application x-www-form-urlencoded  The request getParameter   and consorts would all return null when using multipart form data  This is where the well known Apache Commons FileUpload came into the picture   Don t manually parse it   You can in theory parse the request body yourself based on ServletRequest getInputStream    However  this is a precise and tedious work which requires precise knowledge of RFC2388  You shouldn t try to do this on your own or copypaste some homegrown library-less code found elsewhere on the Internet  Many online sources have failed hard in this  such as roseindia net  See also uploading of pdf file  You should rather use a real library which is used  and implicitly tested   by millions of users for years  Such a library has proven its robustness   When you re already on Servlet 3 0 or newer  use native API  If you re using at least Servlet 3 0  Tomcat 7  Jetty 9  JBoss AS 6  GlassFish 3  etc   then you can just use standard API provided HttpServletRequest getPart   to collect the individual multipart form data items  most Servlet 3 0 implementations actually use Apache Commons FileUpload under the covers for this    Also  normal form fields are available by getParameter   the usual way   First annotate your servlet with  MultipartConfig in order to let it recognize and support multipart form-data requests and thus get getPart   to work    WebServlet   upload    MultipartConfig public class UploadServlet extends HttpServlet                  Then  implement its doPost   as follows   protected void doPost HttpServletRequest request  HttpServletResponse response  throws ServletException  IOException       String description   request getParameter  description       Retrieves  lt input type  text  name  description  gt      Part filePart   request getPart  file       Retrieves  lt input type  file  name  file  gt      String fileName   Paths get filePart getSubmittedFileName    getFileName   toString       MSIE fix      InputStream fileContent   filePart getInputStream                do your job here      Note the Path getFileName    This is a MSIE fix as to obtaining the file name  This browser incorrectly sends the full file path along the name instead of only the file name   In case you have a  lt input type  file  name  file  multiple  true    gt  for multi-file upload  collect them as below  unfortunately there is no such method as request getParts  file      protected void doPost HttpServletRequest request  HttpServletResponse response  throws ServletException  IOException                  List lt Part gt  fileParts   request getParts   stream   filter part - gt   file  equals part getName     amp  amp  part getSize    gt  0  collect Collectors toList        Retrieves  lt input type  file  name  file  multiple  true  gt       for  Part filePart   fileParts            String fileName   Paths get filePart getSubmittedFileName    getFileName   toString       MSIE fix          InputStream fileContent   filePart getInputStream                    do your job here            When you re not on Servlet 3 1 yet  manually get submitted file name  Note that Part getSubmittedFileName   was introduced in Servlet 3 1  Tomcat 8  Jetty 9  WildFly 8  GlassFish 4  etc   If you re not on Servlet 3 1 yet  then you need an additional utility method to obtain the submitted file name   private static String getSubmittedFileName Part part        for  String cd   part getHeader  content-disposition   split                 if  cd trim   startsWith  filename                  String fileName   cd substring cd indexOf        1  trim   replace                        return fileName substring fileName lastIndexOf        1  substring fileName lastIndexOf         1      MSIE fix                      return null        String fileName   getSubmittedFileName filePart     Note the MSIE fix as to obtaining the file name  This browser incorrectly sends the full file path along the name instead of only the file name   When you re not on Servlet 3 0 yet  use Apache Commons FileUpload  If you re not on Servlet 3 0 yet  isn t it about time to upgrade    the common practice is to make use of Apache Commons FileUpload to parse the multpart form data requests  It has an excellent User Guide and FAQ  carefully go through both   There s also the O Reilly   cos   MultipartRequest  but it has some  minor  bugs and isn t actively maintained anymore for years  I wouldn t recommend using it  Apache Commons FileUpload is still actively maintained and currently very mature   In order to use Apache Commons FileUpload  you need to have at least the following files in your webapp s  WEB-INF lib     commons-fileupload jar  commons-io jar    Your initial attempt failed most likely because you forgot the commons IO    Here s a kickoff example how the doPost   of your UploadServlet may look like when using Apache Commons FileUpload   protected void doPost HttpServletRequest request  HttpServletResponse response  throws ServletException  IOException       try           List lt FileItem gt  items   new ServletFileUpload new DiskFileItemFactory    parseRequest request           for  FileItem item   items                if  item isFormField                         Process regular form field  input type  text radio checkbox etc   select  etc                   String fieldName   item getFieldName                    String fieldValue   item getString                            do your job here                else                      Process form file field  input type  file                    String fieldName   item getFieldName                    String fileName   FilenameUtils getName item getName                     InputStream fileContent   item getInputStream                            do your job here                                catch  FileUploadException e            throw new ServletException  Cannot parse multipart request    e                         It s very important that you don t call getParameter    getParameterMap    getParameterValues    getInputStream    getReader    etc on the same request beforehand  Otherwise the servlet container will read and parse the request body and thus Apache Commons FileUpload will get an empty request body  See also a o  ServletFileUpload parseRequest request  returns an empty list   Note the FilenameUtils getName    This is a MSIE fix as to obtaining the file name  This browser incorrectly sends the full file path along the name instead of only the file name   Alternatively you can also wrap this all in a Filter which parses it all automagically and put the stuff back in the parametermap of the request so that you can continue using request getParameter   the usual way and retrieve the uploaded file by request getAttribute    You can find an example in this blog article   Workaround for GlassFish3 bug of getParameter   still returning null  Note that Glassfish versions older than 3 1 2 had a bug wherein the getParameter   still returns null  If you are targeting such a container and can t upgrade it  then you need to extract the value from getPart   with help of this utility method   private static String getValue Part part  throws IOException       BufferedReader reader   new BufferedReader new InputStreamReader part getInputStream     UTF-8         StringBuilder value   new StringBuilder        char   buffer   new char 1024       for  int length   0   length   reader read buffer    gt  0             value append buffer  0  length             return value toString          String description   getValue request getPart  description        Retrieves  lt input type  text  name  description  gt    Saving uploaded file  don t use getRealPath   nor part write      Head to the following answers for detail on properly saving the obtained InputStream  the fileContent variable as shown in the above code snippets  to disk or database    Recommended way to save uploaded files in a servlet application How to upload an image and save it in database  How to convert Part to Blob  so I can store it in MySQL    Serving uploaded file  Head to the following answers for detail on properly serving the saved file from disk or database back to the client    Load images from outside of webapps   webcontext   deploy folder using  lt h graphicImage gt  or  lt img gt  tag How to retrieve and display images from a database in a JSP page  Simplest way to serve static data from outside the application server in a Java web application Abstract template for static resource servlet supporting HTTP caching   Ajaxifying the form  Head to the following answers how to upload using Ajax  and jQuery   Do note that the servlet code to collect the form data does not need to be changed for this  Only the way how you respond may be changed  but this is rather trivial  i e  instead of forwarding to JSP  just print some JSON or XML or even plain text depending on whatever the script responsible for the Ajax call is expecting     How to upload files to server using JSP Servlet and Ajax  Send a file as multipart through xmlHttpRequest HTML5 File Upload to Java Servlet     Hope this all helps

User · Answer

I am Using common Servlet for every Html Form whether it has attachments or not  This Servlet returns a TreeMap where the keys are jsp name Parameters and values are User Inputs and saves all attachments in fixed directory and later you rename the directory of your choice Here Connections is our custom interface having connection object  I think this will help you  public class ServletCommonfunctions extends HttpServlet implements         Connections        private static final long serialVersionUID   1L       public ServletCommonfunctions           protected void doPost HttpServletRequest request              HttpServletResponse response  throws ServletException              IOException         public SortedMap lt String  String gt  savefilesindirectory              HttpServletRequest request  HttpServletResponse response              throws IOException              Map lt String  String gt  key values   Collections synchronizedMap  new            TreeMap lt String  String gt              SortedMap lt String  String gt  key values   new TreeMap lt String  String gt             String dist   null  fact   null          PrintWriter out   response getWriter            File file          String filePath    E   FSPATH1  2KL06CS048             System out println  Directory Created                               new File filePath  mkdir             int maxFileSize   5000   1024          int maxMemSize   5000   1024             Verify the content type         String contentType   request getContentType            if   contentType indexOf  multipart form-data    gt   0                 DiskFileItemFactory factory   new DiskFileItemFactory                   maximum size that will be stored in memory             factory setSizeThreshold maxMemSize                  Location to save data that is larger than maxMemSize              factory setRepository new File filePath                   Create a new file upload handler             ServletFileUpload upload   new ServletFileUpload factory                  maximum file size to be uploaded              upload setSizeMax maxFileSize               try                      Parse the request to get file items                   SuppressWarnings  unchecked                   List lt FileItem gt  fileItems   upload parseRequest request                      Process the uploaded file items                 Iterator lt FileItem gt  i   fileItems iterator                    while  i hasNext                          FileItem fi    FileItem  i next                        if   fi isFormField                                 Get the uploaded file parameters                         String fileName   fi getName                               Write the file                         if  fileName lastIndexOf        gt   0                                file   new File filePath                                   fileName substring fileName                                          lastIndexOf                                    else                               file   new File filePath                                   fileName substring fileName                                          lastIndexOf         1                                                      fi write file                         else                           key values put fi getFieldName    fi getString                                                           catch  Exception ex                    System out println ex                                   return key values

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You need the common-io 1 4 jar file to be included in your lib directory  or if you re working in any editor  like NetBeans  then you need to go to project properties and just add the JAR file and you will be done    To get the common io jar file just google it or just go to the Apache Tomcat website where you get the option for a free download of this file  But remember one thing  download the binary ZIP file if you re a Windows user

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Another source of this problem occurs if you are using Geronimo with its embedded Tomcat  In this case  after many iterations of testing commons-io and commons-fileupload  the problem arises from a parent classloader handling the commons-xxx jars  This has to be prevented  The crash always occurred at    fileItems   uploader parseRequest request     Note that the List type of fileItems has changed with the current version of commons-fileupload to be specifically List lt FileItem gt  as opposed to prior versions where it was generic List    I added the source code for commons-fileupload and commons-io into my Eclipse project to trace the actual error and finally got some insight  First  the exception thrown is of type Throwable not the stated FileIOException nor even Exception  these will not be trapped   Second  the error message is obfuscatory in that it stated class not found because axis2 could not find commons-io   Axis2 is not used in my project at all but exists as a folder in the Geronimo repository subdirectory as part of standard installation   Finally  I found 1 place that posed a working solution which successfully solved my problem  You must hide the jars from parent loader in the deployment plan  This was put into geronimo-web xml with my full file shown below   Pasted from  lt http   osdir com ml user-geronimo-apache 2011-03 msg00026 html gt       lt  xml version  1 0  encoding  UTF-8  standalone  no   gt   lt web web-app xmlns app  http   geronimo apache org xml ns j2ee application-2 0  xmlns client  http   geronimo apache org xml ns j2ee application-client-2 0  xmlns conn  http   geronimo apache org xml ns j2ee connector-1 2  xmlns dep  http   geronimo apache org xml ns deployment-1 2  xmlns ejb  http   openejb apache org xml ns openejb-jar-2 2  xmlns log  http   geronimo apache org xml ns loginconfig-2 0  xmlns name  http   geronimo apache org xml ns naming-1 2  xmlns pers  http   java sun com xml ns persistence  xmlns pkgen  http   openejb apache org xml ns pkgen-2 1  xmlns sec  http   geronimo apache org xml ns security-2 0  xmlns web  http   geronimo apache org xml ns j2ee web-2 0 1  gt       lt dep environment gt           lt dep moduleId gt               lt dep groupId gt DataStar lt  dep groupId gt               lt dep artifactId gt DataStar lt  dep artifactId gt               lt dep version gt 1 0 lt  dep version gt               lt dep type gt car lt  dep type gt           lt  dep moduleId gt    lt  --Don t load commons-io or fileupload from parent classloaders-- gt           lt dep hidden-classes gt               lt dep filter gt org apache commons io lt  dep filter gt               lt dep filter gt org apache commons fileupload lt  dep filter gt           lt  dep hidden-classes gt           lt dep inverse-classloading  gt                 lt  dep environment gt       lt web context-root gt  DataStar lt  web context-root gt   lt  web web-app gt

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HTML PAGE   lt html gt   lt head gt   lt title gt File Uploading Form lt  title gt   lt  head gt   lt body gt   lt h3 gt File Upload  lt  h3 gt  Select a file to upload   lt br   gt   lt form action  UploadServlet  method  post                          enctype  multipart form-data  gt   lt input type  file  name  file  size  50    gt   lt br   gt   lt input type  submit  value  Upload File    gt   lt  form gt   lt  body gt   lt  html gt     SERVLET FILE     Import required java libraries import java io    import java util     import javax servlet ServletConfig  import javax servlet ServletException  import javax servlet http HttpServlet  import javax servlet http HttpServletRequest  import javax servlet http HttpServletResponse   import org apache commons fileupload FileItem  import org apache commons fileupload FileUploadException  import org apache commons fileupload disk DiskFileItemFactory  import org apache commons fileupload servlet ServletFileUpload  import org apache commons io output     public class UploadServlet extends HttpServlet       private boolean isMultipart     private String filePath     private int maxFileSize   50   1024     private int maxMemSize   4   1024     private File file       public void init              Get the file location where it would be stored        filePath                 getServletContext   getInitParameter  file-upload             public void doPost HttpServletRequest request                  HttpServletResponse response                throws ServletException  java io IOException            Check that we have a file upload request       isMultipart   ServletFileUpload isMultipartContent request         response setContentType  text html          java io PrintWriter out   response getWriter           if   isMultipart             out println   lt html gt              out println   lt head gt              out println   lt title gt Servlet upload lt  title gt                out println   lt  head gt              out println   lt body gt              out println   lt p gt No file uploaded lt  p gt               out println   lt  body gt              out println   lt  html gt              return                DiskFileItemFactory factory   new DiskFileItemFactory             maximum size that will be stored in memory       factory setSizeThreshold maxMemSize            Location to save data that is larger than maxMemSize        factory setRepository new File  c   temp               Create a new file upload handler       ServletFileUpload upload   new ServletFileUpload factory            maximum file size to be uploaded        upload setSizeMax  maxFileSize           try            Parse the request to get file items        List fileItems   upload parseRequest request             Process the uploaded file items       Iterator i   fileItems iterator           out println   lt html gt           out println   lt head gt           out println   lt title gt Servlet upload lt  title gt             out println   lt  head gt           out println   lt body gt           while   i hasNext                        FileItem fi    FileItem i next             if    fi isFormField                                  Get the uploaded file parameters             String fieldName   fi getFieldName                String fileName   fi getName                String contentType   fi getContentType                boolean isInMemory   fi isInMemory                long sizeInBytes   fi getSize                   Write the file             if  fileName lastIndexOf        gt   0                   file   new File  filePath                   fileName substring  fileName lastIndexOf                        else                 file   new File  filePath                   fileName substring fileName lastIndexOf       1                               fi write  file                 out println  Uploaded Filename      fileName     lt br gt                              out println   lt  body gt           out println   lt  html gt         catch Exception ex           System out println ex                public void doGet HttpServletRequest request                          HttpServletResponse response          throws ServletException  java io IOException            throw new ServletException  GET method used with                     getClass    getName       POST method required               web xml  Compile above servlet UploadServlet and create required entry in web xml file as follows    lt servlet gt      lt servlet-name gt UploadServlet lt  servlet-name gt      lt servlet-class gt UploadServlet lt  servlet-class gt   lt  servlet gt    lt servlet-mapping gt      lt servlet-name gt UploadServlet lt  servlet-name gt      lt url-pattern gt  UploadServlet lt  url-pattern gt   lt  servlet-mapping gt

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you can upload file using jsp  servlet    lt form action  UploadFileServlet  method  post  gt     lt input type  text  name  description    gt     lt input type  file  name  file    gt     lt input type  submit    gt   lt  form gt    on the other hand server side  use following code        package com abc  servlet   import java io File  --------- --------          Servlet implementation class UploadFileServlet     public class UploadFileServlet extends HttpServlet       private static final long serialVersionUID   1L       public UploadFileServlet             super               TODO Auto-generated constructor stub           protected void doGet HttpServletRequest request  HttpServletResponse response  throws ServletException  IOException              TODO Auto-generated method stub         response sendRedirect     jsp ErrorPage jsp               protected void doPost HttpServletRequest request  HttpServletResponse response  throws ServletException  IOException              TODO Auto-generated method stub              PrintWriter out   response getWriter                HttpSession httpSession   request getSession                String filePathUpload    String  httpSession getAttribute  path    null   httpSession getAttribute  path   toString                       String path1    filePathUpload              String filename   null              File path   null              FileItem item null                boolean isMultipart   ServletFileUpload isMultipartContent request                if  isMultipart                    FileItemFactory factory   new DiskFileItemFactory                    ServletFileUpload upload   new ServletFileUpload factory                   String FieldName                       try                       List items   upload parseRequest request                       Iterator iterator   items iterator                        while  iterator hasNext                               item    FileItem  iterator next                                 if  fieldname equals  description                                      description   item getString                                                                                    if   item isFormField                                  filename   item getName                                path   new File path1   File separator                               if   path exists                                      boolean status   path mkdirs                                                                 START OF CODE FRO PRIVILEDGE                                File uploadedFile   new File path   Filename       for copy file                             item write uploadedFile                                                           else                               f1   item getName                                                        END OF WHILE                      response sendRedirect  welcome jsp                      catch  FileUploadException e                        e printStackTrace                      catch  Exception e                        e printStackTrace

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You first have to set the enctype attribute of the form to  quot multipart form-data quot  This is shown below   lt form action  quot Controller quot  method  quot post quot  enctype  quot multipart form-data quot  gt        lt label class  quot file-upload quot  gt  Click here to upload an Image  lt  label gt        lt input type  quot file quot  name  quot file quot  id  quot file quot  required gt    lt  form gt   And then  in the Servlet  quot Controller quot  add the Annotation for a Multi-part to indicate multipart data is processed in the servlet  After doing this  retrieve the part sent through the form and then retrieve the file name  with path of the submitted file  Use this to create a new file in the desired path and write the parts of the file to the newly created file to recreate the file  As shown below   MultipartConfig  public class Controller extends HttpServlet        protected void doPost HttpServletRequest request  HttpServletResponse response              throws ServletException  IOException           insertImage request  response              private void addProduct HttpServletRequest request  HttpServletResponse response            Part filePart   request getPart  quot file quot            String imageName   Paths get filePart getSubmittedFileName    getFileName   toString             String imageSavePath    quot specify image path to save image quot     path to save image         FileOutputStream outputStream   null          InputStream fileContent   null           try               outputStream   new FileOutputStream new File imageSavePath   File separator   imageName                  creating a new file with file path and the file name             fileContent   filePart getInputStream                  getting the input stream             int readBytes   0              byte   readArray   new byte 1024                 initializing a byte array with size 1024              while   readBytes   fileContent read readArray      -1                    outputStream write readArray  0  readBytes                  this loop will write the contents of the byte array unitl the end to the output stream           catch  Exception ex                System out println  quot Error Writing File   quot    ex             finally               if  outputStream    null                    outputStream close                      closing the output stream                           if  fileContent    null                    fileContent close                      clocsing the input stream

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Simplest way could come up with for files and input controls  w out a billion  libraries      lt     if  request getContentType    null  return       for input type text controls   String v Text       new BufferedReader new InputStreamReader request getPart  Text1   getInputStream      readLine              for input type file controls   InputStream inStr   request getPart  File1   getInputStream      char charArray     new char inStr available       new InputStreamReader inStr  read charArray     String contents   new String charArray       gt

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DiskFileUpload upload new DiskFileUpload      From this object you have to get file items and fields then yo can store into server like followed   String loc    webapps prjct name server folder   contentid extension  File uploadFile new File loc   item write uploadFile

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For Spring MVC I have been trying for hours to do this and managed to have a simpler version that worked for taking form input both data and image    lt form action   handleform  method  post  enctype  multipart form-data  gt     lt input type  text  name  name    gt     lt input type  text  name  age    gt     lt input type  file  name  file    gt     lt input type  submit    gt   lt  form gt    Controller to handle    Controller public class FormController        RequestMapping value   handleform  method  RequestMethod POST      ModelAndView register  RequestParam String name   RequestParam int age   RequestParam MultipartFile file              throws ServletException  IOException            System out println name           System out println age           if  file isEmpty                 byte   bytes   file getBytes                String filename   file getOriginalFilename                BufferedOutputStream stream  new BufferedOutputStream new FileOutputStream new File  D      filename                 stream write bytes               stream flush                stream close                      return new ModelAndView  index              Hope it helps

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Here s an example using apache commons-fileupload      apache commons-fileupload to handle file upload DiskFileItemFactory factory   new DiskFileItemFactory    factory setRepository new File DataSources TORRENTS DIR      ServletFileUpload fileUpload   new ServletFileUpload factory    List lt FileItem gt  items   fileUpload parseRequest req raw     FileItem item   items stream      filter e - gt     the upload name  equals e getFieldName        findFirst   get    String fileName   item getName     item write new File dir  fileName    log info fileName

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If you happen to use Spring MVC  this is how to    I m leaving this here in case someone find it useful    Use a form with enctype attribute set to  multipart form-data   Same as BalusC s Answer    lt form action  upload  method  post  enctype  multipart form-data  gt       lt input type  file  name  file    gt       lt input type  submit  value  Upload   gt   lt  form gt    In your controller  map the request parameter file to MultipartFile type as follows    RequestMapping value     upload   method   RequestMethod POST  public void handleUpload  RequestParam  file   MultipartFile file  throws IOException       if   file isEmpty                  byte   bytes   file getBytes       alternatively  file getInputStream                   application logic           You can get the filename and size using MultipartFile s getOriginalFilename   and getSize     I ve tested this with Spring version 4 1 1 RELEASE

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Without component or external Library in Tomcat 6 o 7  Enabling Upload in the web xml file   http   joseluisbz wordpress com 2014 01 17 manually-installing-php-tomcat-and-httpd-lounge  Enabling 20File 20Uploads    lt servlet gt       lt servlet-name gt jsp lt  servlet-name gt       lt servlet-class gt org apache jasper servlet JspServlet lt  servlet-class gt       lt multipart-config gt         lt max-file-size gt 3145728 lt  max-file-size gt         lt max-request-size gt 5242880 lt  max-request-size gt       lt  multipart-config gt       lt init-param gt           lt param-name gt fork lt  param-name gt           lt param-value gt false lt  param-value gt       lt  init-param gt       lt init-param gt           lt param-name gt xpoweredBy lt  param-name gt           lt param-value gt false lt  param-value gt       lt  init-param gt       lt load-on-startup gt 3 lt  load-on-startup gt   lt  servlet gt    AS YOU CAN SEE        lt multipart-config gt         lt max-file-size gt 3145728 lt  max-file-size gt         lt max-request-size gt 5242880 lt  max-request-size gt       lt  multipart-config gt    Uploading Files using JSP  Files   In the html file   lt form method  post  enctype  multipart form-data  name  Form   gt      lt input type  file  name  fFoto  id  fFoto  value      gt  lt  td gt     lt input type  file  name  fResumen  id  fResumen  value     gt    In the JSP File or Servlet      InputStream isFoto   request getPart  fFoto   getInputStream        InputStream isResu   request getPart  fResumen   getInputStream        ByteArrayOutputStream baos   new ByteArrayOutputStream        byte buf     new byte 8192       int qt   0      while   qt   isResu read buf      -1          baos write buf  0  qt             String sResumen   baos toString      Edit your code to servlet requirements  like max-file-size  max-request-size  and other options that you can to set

[java] How to upload files to server using JSP/Servlet?

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