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Posted to user@struts.apache.org by Rick Horowitz <ri...@yahoo.com> on 2001/06/14 08:47:35 UTC
HREF link question
Hi,
I'm trying to use href links with Struts templates, and can't figure out
how to make my href links work properly. [Templates seem to work just
fine, otherwise.]... my compliments.
1. I want to use Struts <html:link> tags so that to automatically do URL
session encoding.
2. I want to use absolute URLs to make coding of urls more robust. For
example, if I have a directory structure of JSPs:
jsp
jsp/prodinfo
jsp/faq
...I want to be able to code the url something like...
jsp/faq/faq1.jsp or jsp/prodinfo/info1.jsp, in case I change the directory
structure, rather than using relative links, e.g. ../faq/faq1.jsp.
3. For the portion of the website that I'm currently working on, I am
creating href links from one JSP to other JSPs. [For other portions of the
website, I will be using an MVC architecture, hence forwarding from a
servlet to a JSP and vice versa.]
4. I have tried various approaches to using the <html:base/> tag in the
HTML <HEAD> section of my Struts template file, not using a base tag, and
have tried using the following to set the html base:
<BASE HREF="<%= "http://"
+request.getServerName() +":"
+request.getServerPort()
+request.getContextPath() %>/" >
Although the latter works with regular <a href > tags, it does not
seem to work with <html:link> Struts tags.
I have tried a variety of combinations of these base tags with a variety of
combinations of url encodings, but cannot seem to get them to work --
except with regular <a href> tags using the
<BASE HREF="<%= "http://"
+request.getServerName() +":"
+request.getServerPort()
+request.getContextPath() %>/" >
base tag setting.
Thank you in advance to anyone who can help,
--------------------
Rick Horowitz
Re: HREF link question - oops!
Posted by Rick Horowitz <ri...@yahoo.com>.
Sorry about the last message. It didn't work due to a spelling mistake on
my part. The <html:link> tag seems to work as expected.
Thanks again,
Rick
At 02:18 PM 6/14/01 -0700, you wrote:
>Hi Craig,
>
>Thanks for your response. Unfortunately, it still doesn't work. I tried
>two different approaches: with the <html:base/> tag and without it, and I
>get the same result in both cases:
>
> I code the following link:
>
> <html:link
> page="/jsp/prodinfo/prodinfo.jsp">Introduction</html:link>
>
> The html source (in the browser, Netscape 4.6.1 or IE 4.72) shows:
>
> When I use the <html:base/> tag:
>
> <base
> href="http://localhost:8080/backup/jsp/prodinfo/prod-info.jsp"> in the
> HTML head section, and
>
> The link is generated as:
>
> <a
> href="/backup/jsp/prodinfo/prodinfo.jsp">Introduction</a> as the href link
>
> When I mouse over the link in the browser, the status line at the
> bottom of the browser window displays:
>
> http://localhost:8080/backup/jsp/prodinfo/prod-info.jsp
>
> When I click the link, I get the following in the browser window:
>
> Not Found (404)
> Original request: /backup/jsp/prodinfo/prodinfo.jsp
>
> Not found request: /backup/jsp/prodinfo/prodinfo.jsp
>
>Am I doing something wrong? Must be, since you use this approach all the
>time. Thanks again for your help. It is greatly appreciated.
>
>Rick Horowitz
>
>
>At 09:59 AM 6/14/01 -0700, you wrote:
>
>
>>On Wed, 13 Jun 2001, Rick Horowitz wrote:
>>
>> > Hi,
>> >
>> > I'm trying to use href links with Struts templates, and can't figure out
>> > how to make my href links work properly. [Templates seem to work just
>> > fine, otherwise.]... my compliments.
>> >
>> > 1. I want to use Struts <html:link> tags so that to automatically do URL
>> > session encoding.
>> >
>>
>>Struts does this automatically for you.
>>
>> > 2. I want to use absolute URLs to make coding of urls more robust. For
>> > example, if I have a directory structure of JSPs:
>> > jsp
>> > jsp/prodinfo
>> > jsp/faq
>> > ...I want to be able to code the url something like...
>> > jsp/faq/faq1.jsp or jsp/prodinfo/info1.jsp, in case I change the directory
>> > structure, rather than using relative links, e.g. ../faq/faq1.jsp.
>> >
>>
>>I have found it best to use context-relative URLs starting with a
>>"/" character throughout my applications, rather than trying to use
>>relative links -- for the reasons that you are probably familiar with. To
>>do that for links, use the "page" attribute to specify the destination --
>>Struts will prepend the context path of the current application for you,
>>so that the browser always goes the right place. For example, you might
>>code:
>>
>> <html:link page="/jsp/faq/faq1.jsp">To the FAQ</html:link>
>>
>> > 3. For the portion of the website that I'm currently working on, I am
>> > creating href links from one JSP to other JSPs. [For other portions
>> of the
>> > website, I will be using an MVC architecture, hence forwarding from a
>> > servlet to a JSP and vice versa.]
>> >
>>
>>It works either way, but remember that links directly from one page to
>>another bypasses the controller -- and therefore bypasses the stuff that
>>the controller servlet does for you.
>>
>>
>> > 4. I have tried various approaches to using the <html:base/> tag in the
>> > HTML <HEAD> section of my Struts template file, not using a base tag, and
>> > have tried using the following to set the html base:
>> > <BASE HREF="<%= "http://"
>> > +request.getServerName() +":"
>> > +request.getServerPort()
>> > +request.getContextPath() %>/" >
>> > Although the latter works with regular <a href > tags, it does not
>> > seem to work with <html:link> Struts tags.
>> >
>>
>>See the <html:base/> tag for a way to do this automatically.
>>
>>However, whether you create it yourself or not, the <base> element affects
>>only relative hyperlinks. If you follow my suggestion above (always use
>>context-relative links), you won't need it.
>>
>> > I have tried a variety of combinations of these base tags with a
>> variety of
>> > combinations of url encodings, but cannot seem to get them to work --
>> > except with regular <a href> tags using the
>> > <BASE HREF="<%= "http://"
>> > +request.getServerName() +":"
>> > +request.getServerPort()
>> > +request.getContextPath() %>/" >
>> > base tag setting.
>> >
>> > Thank you in advance to anyone who can help,
>> >
>> > --------------------
>> > Rick Horowitz
>> >
>> >
>>
>>Craig
>
>--------------------
>Rick Horowitz
--------------------
Rick Horowitz
Re: HREF link question
Posted by Rick Horowitz <ri...@yahoo.com>.
Hi Craig,
Thanks for your response. Unfortunately, it still doesn't work. I tried
two different approaches: with the <html:base/> tag and without it, and I
get the same result in both cases:
I code the following link:
<html:link
page="/jsp/prodinfo/prodinfo.jsp">Introduction</html:link>
The html source (in the browser, Netscape 4.6.1 or IE 4.72) shows:
When I use the <html:base/> tag:
<base
href="http://localhost:8080/backup/jsp/prodinfo/prod-info.jsp"> in the
HTML head section, and
The link is generated as:
<a
href="/backup/jsp/prodinfo/prodinfo.jsp">Introduction</a> as the href link
When I mouse over the link in the browser, the status line at the
bottom of the browser window displays:
http://localhost:8080/backup/jsp/prodinfo/prod-info.jsp
When I click the link, I get the following in the browser window:
Not Found (404)
Original request: /backup/jsp/prodinfo/prodinfo.jsp
Not found request: /backup/jsp/prodinfo/prodinfo.jsp
Am I doing something wrong? Must be, since you use this approach all the
time. Thanks again for your help. It is greatly appreciated.
Rick Horowitz
At 09:59 AM 6/14/01 -0700, you wrote:
>On Wed, 13 Jun 2001, Rick Horowitz wrote:
>
> > Hi,
> >
> > I'm trying to use href links with Struts templates, and can't figure out
> > how to make my href links work properly. [Templates seem to work just
> > fine, otherwise.]... my compliments.
> >
> > 1. I want to use Struts <html:link> tags so that to automatically do URL
> > session encoding.
> >
>
>Struts does this automatically for you.
>
> > 2. I want to use absolute URLs to make coding of urls more robust. For
> > example, if I have a directory structure of JSPs:
> > jsp
> > jsp/prodinfo
> > jsp/faq
> > ...I want to be able to code the url something like...
> > jsp/faq/faq1.jsp or jsp/prodinfo/info1.jsp, in case I change the directory
> > structure, rather than using relative links, e.g. ../faq/faq1.jsp.
> >
>
>I have found it best to use context-relative URLs starting with a
>"/" character throughout my applications, rather than trying to use
>relative links -- for the reasons that you are probably familiar with. To
>do that for links, use the "page" attribute to specify the destination --
>Struts will prepend the context path of the current application for you,
>so that the browser always goes the right place. For example, you might
>code:
>
> <html:link page="/jsp/faq/faq1.jsp">To the FAQ</html:link>
>
> > 3. For the portion of the website that I'm currently working on, I am
> > creating href links from one JSP to other JSPs. [For other portions of
> the
> > website, I will be using an MVC architecture, hence forwarding from a
> > servlet to a JSP and vice versa.]
> >
>
>It works either way, but remember that links directly from one page to
>another bypasses the controller -- and therefore bypasses the stuff that
>the controller servlet does for you.
>
>
> > 4. I have tried various approaches to using the <html:base/> tag in the
> > HTML <HEAD> section of my Struts template file, not using a base tag, and
> > have tried using the following to set the html base:
> > <BASE HREF="<%= "http://"
> > +request.getServerName() +":"
> > +request.getServerPort()
> > +request.getContextPath() %>/" >
> > Although the latter works with regular <a href > tags, it does not
> > seem to work with <html:link> Struts tags.
> >
>
>See the <html:base/> tag for a way to do this automatically.
>
>However, whether you create it yourself or not, the <base> element affects
>only relative hyperlinks. If you follow my suggestion above (always use
>context-relative links), you won't need it.
>
> > I have tried a variety of combinations of these base tags with a
> variety of
> > combinations of url encodings, but cannot seem to get them to work --
> > except with regular <a href> tags using the
> > <BASE HREF="<%= "http://"
> > +request.getServerName() +":"
> > +request.getServerPort()
> > +request.getContextPath() %>/" >
> > base tag setting.
> >
> > Thank you in advance to anyone who can help,
> >
> > --------------------
> > Rick Horowitz
> >
> >
>
>Craig
--------------------
Rick Horowitz
Re: HREF link question
Posted by "Craig R. McClanahan" <cr...@apache.org>.
On Wed, 13 Jun 2001, Rick Horowitz wrote:
> Hi,
>
> I'm trying to use href links with Struts templates, and can't figure out
> how to make my href links work properly. [Templates seem to work just
> fine, otherwise.]... my compliments.
>
> 1. I want to use Struts <html:link> tags so that to automatically do URL
> session encoding.
>
Struts does this automatically for you.
> 2. I want to use absolute URLs to make coding of urls more robust. For
> example, if I have a directory structure of JSPs:
> jsp
> jsp/prodinfo
> jsp/faq
> ...I want to be able to code the url something like...
> jsp/faq/faq1.jsp or jsp/prodinfo/info1.jsp, in case I change the directory
> structure, rather than using relative links, e.g. ../faq/faq1.jsp.
>
I have found it best to use context-relative URLs starting with a
"/" character throughout my applications, rather than trying to use
relative links -- for the reasons that you are probably familiar with. To
do that for links, use the "page" attribute to specify the destination --
Struts will prepend the context path of the current application for you,
so that the browser always goes the right place. For example, you might
code:
<html:link page="/jsp/faq/faq1.jsp">To the FAQ</html:link>
> 3. For the portion of the website that I'm currently working on, I am
> creating href links from one JSP to other JSPs. [For other portions of the
> website, I will be using an MVC architecture, hence forwarding from a
> servlet to a JSP and vice versa.]
>
It works either way, but remember that links directly from one page to
another bypasses the controller -- and therefore bypasses the stuff that
the controller servlet does for you.
> 4. I have tried various approaches to using the <html:base/> tag in the
> HTML <HEAD> section of my Struts template file, not using a base tag, and
> have tried using the following to set the html base:
> <BASE HREF="<%= "http://"
> +request.getServerName() +":"
> +request.getServerPort()
> +request.getContextPath() %>/" >
> Although the latter works with regular <a href > tags, it does not
> seem to work with <html:link> Struts tags.
>
See the <html:base/> tag for a way to do this automatically.
However, whether you create it yourself or not, the <base> element affects
only relative hyperlinks. If you follow my suggestion above (always use
context-relative links), you won't need it.
> I have tried a variety of combinations of these base tags with a variety of
> combinations of url encodings, but cannot seem to get them to work --
> except with regular <a href> tags using the
> <BASE HREF="<%= "http://"
> +request.getServerName() +":"
> +request.getServerPort()
> +request.getContextPath() %>/" >
> base tag setting.
>
> Thank you in advance to anyone who can help,
>
> --------------------
> Rick Horowitz
>
>
Craig