HTTP GET Request returns spaces

Question

I have a GET request to a jsp page. The contents of the JSP page is below:

<%@page language="java" import="java.sql.*,java.util.*" %>
<%@page import="javax.servlet.*, java.util.*,java.util.Date, java.text.*"%>
<jsp:useBean id="workM" class="test.concept" scope="page" />
<jsp:useBean id="userM" class="test.learning" scope="page" />
<jsp:useBean id="checkM" class="test.check" scope="session" />
<%
if (checkM.checkUser()) //For auto loading user's most used search engine. Note: Only if the difference between top two is very big
{
    String user_id = checkM.getUser();
    ResultSet RS6=workM.executeQuery("select top 1 searchEngineUsed,count(*) as number from UserSearchEngineSearch where user_id='"+user_id+"' group by searchEngineUsed order by number desc;");
    while (RS6.next())
    {

        String name = RS6.getString("searchEngineUsed");
        if (name.equals("google"))
        {
            out.print("1");
        }
        else if (name.equals("yahoo"))
        {
            out.print("2");
        }
        else if (name.equals("bing"))
        {

            out.print("3");
        }
        else if (name.equals("baidu"))
        {

            out.print("4");
        }
        else if (name.equals("yandex"))
        {
            out.print("5");
        }
        else if (name.equals("askcom"))
        {
            out.print("6");
        }
        else //by default just display google
        {
            out.print("1");
        }
    }
}
else //user not login
{ 
    out.print("1");
}
%>

However, the content of the GET webpage is contains 5 lines of new line followed by a 4 (which means "baidu" was selected). How do I remove the 5 lines of new line spacing?

score 1 · Answer 1 · answered Oct 17 '12 at 14:04

1

If you are using Tomcat you could use

<%@ page trimDirectiveWhitespaces="true" %>

on your page, or define a global setting in your web.xml

<jsp-config>
  <jsp-property-group>
    <url-pattern>*.jsp</url-pattern>
    <trim-directive-whitespaces>true</trim-directive-whitespaces>
  </jsp-property-group>
</jsp-config>

answered Oct 17 '12 at 14:04

Jasper de Vries

19,370
6
64
102

I'm using Tomcat yes. Will try out this method. – Ferrino Oct 18 '12 at 14:17

score 0 · Answer 2 · answered Oct 17 '12 at 13:52

0

The <%@page> and <jsp:useBean> directives at the top of your JSP are each separated by a newline. If you actually want to remove them, you need to write these in one line. Yet the extra newlines do not harm, they are not rendered by browsers.

answered Oct 17 '12 at 13:52

f_puras

2,521
4
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Ahh this is where I went wrong..Thanks man..No wonder there are 6 newlines. – Ferrino Oct 18 '12 at 14:17

score 0 · Answer 3 · answered Oct 17 '12 at 16:21

0

Also you can rewrite it on to something like this :

<%@page language="java" import="java.sql.*,java.util.*"
%><%@page import="javax.servlet.*, java.util.*,java.util.Date, java.text.*"
%><jsp:useBean id="workM" class="test.concept" scope="page" 
/><jsp:useBean id="userM" class="test.learning" scope="page" 
/><jsp:useBean id="checkM" class="test.check" scope="session"
/><%
......
%>

It will not add any extra new lines.

answered Oct 17 '12 at 16:21

richardtz

4,993
2
27
38

Ahh this is where I went wrong..Thanks man! – Ferrino Oct 18 '12 at 14:16

HTTP GET Request returns spaces

3 Answers3