Databases
StackOverflow2013
Postsdbo
POServlet/JSP: Property 'id' not found on type mobile
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POServlet/JSP: Property 'id' not found on type mobile
    primarykey
    data
    text
    <p>1) I have a link in an HTML page which simulates an HTTP <code>GET</code> request.(by manually supplying the query string. This page basically calls a Servlet where a database access is done in its <code>doGet()</code> method. The SQL query is sent as part of the query string. </p> <p><code>http://localhost:8080/prelim_db_test_19_3_2013/md?q=select * from test.mobile</code> (<code>test</code> is the MySQL DB and <code>mobile</code> is the table).</p> <p>2) Then, the results are stored in an ArrayList.</p> <pre><code>ArrayList &lt;mobile&gt; mylist=new ArrayList&lt;mobile&gt; (); mylist.add(new mobile(rs.getInt("id"),rs.getString("name"))); </code></pre> <p>where <code>mobile</code> is simply a class with <code>id</code> and <code>name</code> as class variables (and a constructor as well)</p> <p>3) The <code>ArrayList</code> is then forwarded to another JSP as:</p> <pre><code>request.setAttribute("answer", mylist); request.getRequestDispatcher("info.jsp").forward(request, response); </code></pre> <p>4) Now in the second JSP, I simple use <code>&lt;c:forEach&gt;</code> to iterate and print the table contents:</p> <pre><code>&lt;c:forEach items="${answer}" var="i"&gt; &lt;tr&gt; &lt;td&gt;${i.id}&lt;/td&gt; &lt;td&gt;${i.name}&lt;/td&gt; &lt;/tr&gt; &lt;/c:forEach&gt; </code></pre> <p>Yet, when I run the project, an exception is thrown:</p> <p><code>javax.el.PropertyNotFoundException: Property 'id' not found on type mobile</code></p> <p>at this line:</p> <p><code>request.getRequestDispatcher("info.jsp").forward(request, response);</code></p> <p>Note that the DB access itself works fine when the results are printed to console(so the Servlet gets called too with my query string). Here's my project setup in Eclipse(if there's any problem with the way it's set up):</p> <p><img src="https://i.stack.imgur.com/JYumC.png" alt="enter image description here"></p> <p>What am I doing wrong here?</p> <p><strong>EDIT</strong> <code>mobile.java</code>:</p> <pre><code>public class mobile { int id; String name; public mobile(int i,String n) { id=i; name=n; } } </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USKedar Paranjape
    1. USKedar Paranjape
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POServlet/JSP: Property 'id' not found on type mobile
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POServlet/JSP: Property 'id' not found on type mobile
      1. This table or related slice is empty.
      1. VTDownMod
    3. VO
      singulars
      1. POServlet/JSP: Property 'id' not found on type mobile
      1. USKedar Paranjape
      1. VTFavorite
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload