Wrong when use PrintWriter to write new HTML

Question

I used PrintWriter to do this code :

        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            /* TODO output your page here. You may use following sample code. */
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Update Page</title>");
            out.println("</head>");

            out.println("<body>");
            out.println("<center>");
            out.println("<h1>Please choose ID</h1>");
            out.println("</center>");
            out.println("<table width='359' border='1' align='center'>");
            out.println("<tr>");
            out.println("<td width='103'>ID:</td>");
            out.println("<th width='246'>");
            out.println("<select name='ID' id='ID' style='width:170px;' >");
            out.println("<option></option>");
            out.println("</select>");
            out.println("</th>");
            out.println("</tr>");
            out.println("<tr>");
            out.println("<td>Name:</td>");
            out.println("<th><input type='text' name='Name' id='Name' style='width:170px;' /></th>");
            out.println("</tr>");
            out.println("<tr>");
            out.println("<td>Address:</td>");
            out.println("<th><input type='text' name='Address' id='Address' style='width:170px;'/></th>");
            out.println("</tr>");
            out.println("<td>Email:</td>");
            out.println("<th><input type='text' name='Email' id='Email' style='width:170px;'/></th>");
            out.println("</tr>");
            out.println("<tr>");
            out.println("<td>Phone Number:</td>");
            out.println("<th><input type='text' name='Phone' id='Phone' style='width:170px;'/></th>");
            out.println("</tr>");
            out.println("<tr>");
            out.println("<td></td>");
            //=================
            out.println("<td>");
            out.println("<div>");        
            out.println("<input type='submit' name='FillValue' value='Fill ID' style='float:left'/>");

            out.println("<form action='UpdateServlet' method='post'>");
            out.println("<input type='submid' name='Submid' value='Submit'  style='float:right'/>");
            out.println("</form>");
            out.println("</div>");
            out.println("</td>");
            out.println("</tr>");
            //==============
            out.println("</table>");
            out.println("</body>");
            out.println("</html>");
        } finally {
            out.close();
        }

But something wrong when I click to Submid button, the result is :

HTTP Status 404 - /DungDV01852_Lab1_2_3/UpdateServlet

type Status report

message /DungDV01852_Lab1_2_3/UpdateServlet

description The requested resource (/DungDV01852_Lab1_2_3/UpdateServlet) is not available. Apache Tomcat/6.0.29

I Have class updateServlet. Another : I have the HTML :

            <td>
                <div>
                    <form action="FillServlet" method="post">
       <input type="submit" name="FillValue" value="Fill ID" style="float:left"/>
                    </form>
    <input type="submit" name="Submid" id="Submid" value="Submit"style="float:right"/>
                </div>
            </td>

It Run exactly, but the same when I use PrintWriter to write a new HTML is Wrong. Please help me. Thanks everyone

Don't do this. Use servlets for your Java code, and JSP/JSF/some other templating or HTML generation for that. http://stackoverflow.com/questions/3177733/how-to-avoid-java-code-in-jsp-files — Matt Ball, Oct 30 '12 at 03:07
In your first case, input type is "submid"...I believe its a typo. — Shashank Kadne, Oct 30 '12 at 03:10
I have to use PrintWriter to do this code . It is my homework :(. thank you but I can not use JSP/JSF/some other — famfamfam, Oct 30 '12 at 03:13
- provide web.xml so we can see why you are getting a 404 - - all of your s should be contained by a
element. — Nicholas Albion, Oct 30 '12 at 03:18
Check whether you have servlet mappings in place inside your web.xml — Shashank Kadne, Oct 30 '12 at 03:19
I just write out.println("
"); out.println(""); out.println("
"); to HTML, but it cause 404. I do not know why? :( — famfamfam, Oct 30 '12 at 03:23

score 1 · Accepted Answer · answered Oct 30 '12 at 04:43

1

The code in your question will not cause a 404 error. A 404 will happens either because your code explicitly sets a 404 response by calling response.sendError(...), or because the request never made it to your servlet in the first place. And the most likely cause of the latter is that your web.xml file is not configuring and mapping your servlet properly.

If you want more help, please add the entire web.xml file to the Question.

answered Oct 30 '12 at 04:43

Stephen C

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I solve problem, when I use Form in HTML to mean " Action = someServlet", It will be created in Web.xml, But when I use printWriter to write a new HTML use other form. So this Form and this action to other servlet is disable ( not create ). I config my Web.xml so my application run exactly :D. Thanks you very much – famfamfam Oct 30 '12 at 08:55

Wrong when use PrintWriter to write new HTML

1 Answers1