CODEWITHSUNDEEP
jspfile-upload
Liron Navon
Liron Navon

Reputation: 1097

How to activate @MultipartConfig annotation on a JSP file?

so in my class i was ordered to upload images to database and get them out and show them on a website, pretty simple when using servlet or php, but i was asked to do it using only JSP files. to do so i had to get an image from the user and pass it as a parameter and get a part of the parameter, not a problem.

the problem started when i tried to run it and the server asked for @multipartconfig annotation. i cant find a way to add it to the jsp code.

this is the jsp:

    <%@page import="javax.servlet.annotation.MultipartConfig"%>
<%@page import="java.sql.*"%>
<%@page import="java.io.InputStream"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>


<%
    request.setCharacterEncoding("UTF-8");
    Part p = request.getPart("image");
    InputStream inputStream = null;
    if (p != null) {
        inputStream = p.getInputStream();
    }

    String driver = "com.mysql.jdbc.Driver";
    String url = "jdbc:mysql://localhost:3306/test42";
    Class.forName(driver);
    Connection con = DriverManager.getConnection(url, "root", "1234");

    String sqlString = "INSERT INTO test42.images items(idimages) values(" + inputStream + ");";

    String msg = p.toString();

%>

this is the upload form:

  <form method="post" action="mainPage.jsp" enctype="multipart/form-data">
                choose file :
                <input type="file" name="image" />

                <input type="submit" value="submit">
            </form>

and this is the messege from the server: 

java.lang.IllegalStateException: Request.getPart is called without multipart configuration. Either add a @MultipartConfig to the servlet, or a multipart-config element to web.xml

i tried adding it to the web.xml but it didnt work.... the app just crash with a build error; i got this solution from here: http://docs.oracle.com/javaee/6/tutorial/doc/gmhal.html

like so:

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd">

    <session-config>
        <session-timeout>
            30
        </session-timeout>
   </session-config>

   <multipart-config>
    <location>/tmp</location>
    <max-file-size>20848820</max-file-size>
    <max-request-size>418018841</max-request-size>
    <file-size-threshold>1048576</file-size-threshold>
</multipart-config>

</web-app>

Upvotes: 1

Views: 9325

Answers (2)

rickz
rickz

Reputation: 4474

The <multipart-config> tag needs to go inside the <servlet> tag and you need to have a <servlet-mapping> along the <servlet> tag.

<servlet>   
    <servlet-name>uploadfile</servlet-name>
    <jsp-file>/mainPage.jsp</jsp-file>
    <multipart-config>
        <location>/temp</location>
        <max-file-size>20848820</max-file-size>
        <max-request-size>418018841</max-request-size>
        <file-size-threshold>1048576</file-size-threshold>
    </multipart-config>
</servlet>
<servlet-mapping>
    <servlet-name>uploadfile</servlet-name>
    <url-pattern>/mainPage.jsp</url-pattern>
</servlet-mapping>

Upvotes: 6

Kuthuru Karthik
Kuthuru Karthik

Reputation: 1

Actually every jsp file will be converted to servlet because tomcat can only address servlet and so every jsp file is indirectly a servlet and has all the features of it

Upvotes: 0

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