java - Servlet doesn't execute response.sendRedirect(addressPath); , but does execute response.sendRedirect() without path -


consider following hierarchy :

enter image description here

when send redirect : 

    response.sendredirect("error404.jsp");    // no path here !!!

i reach page error404.jsp .

but when use path : 

    string addresspath = "/web-inf/results/admin/adminpage.jsp";     response.sendredirect(addresspath);   // path !!!

i 404 : 

http status 404 -  type status report  message  description requested resource not available.  apache tomcat/7.0.50

what doing wrong here ?

much appreciated !

see javadoc

this method can accept relative urls;the servlet container must convert relative url absolute url before sending response client. if location relative without leading '/' container interprets relative current request uri. if location relative leading '/' container interprets relative servlet container root. if location relative 2 leading '/' container interprets network-path reference (see rfc 3986: uniform resource identifier (uri): generic syntax, section 4.2 "relative reference").

note argument not path within servlet context requestdispatcher use, url used in location header of 302 response.

so this

string addresspath = "/web-inf/results/admin/adminpage.jsp"; response.sendredirect(addresspath);   // path !!!

will transformed 302 response header

location: http://whateverhost.com/web-inf/results/admin/adminpage.jsp

which don't have handler for, 404.

on other hand, this

response.sendredirect("error404.jsp");    // no path here !!!

becomes

location: http://whateverhost.com/context-path/error404.jsp

since error404.jsp outside web-inf, accessible , therefore rendered jsp servlet , returned response.


Comments

Post a Comment

Popular posts from this blog

apache - Remove .php and add trailing slash in url using htaccess not loading css -

i have add following code htaccess file removing .php extension , add trailing slash urls. worked fine reduced page loading speed , css code not loading @ all. pages ugly. please help rewriteengine on rewritebase / ## hide .php extension snippet # externally redirect /dir/foo.php /dir/foo rewritecond %{the_request} ^[a-z]{3,}\s([^.]+)\.php [nc] rewriterule ^ %1/ [r,l] # add trailing slash rewritecond %{request_filename} !-f rewritecond %{request_uri} !/$ rewriterule . %{request_uri}/ [l,r=301] # internally forward /dir/foo /dir/foo.php rewritecond %{request_filename} !-d rewritecond %{request_filename}.php -f rewriterule ^(.*?)/?$ $1.php [l] we can rewrite urls using .htaccess files. before writing in .htaccess files need verify kind of server using. can check server adding a <?php phpinfo(); ?> in php page. ensure mod_rewrite module enabled in apache server. can identified checking phpinfo included page. common methods used url rewriting follows ...
Read more

inno setup - TLabel or TNewStaticText - change .Font.Style on Focus like Cursor changes with .Cursor -

is possible change .font.style on focus tlabel or tnewstatictext happens cursor when use .cursor ? there no built-in support track mouse hovering in inno setup @ time. however, intercepting window procedure of controls can track yourself. following example need innocallback library: [setup] appname=my program appversion=1.5 defaultdirname={pf}\my program outputdir=userdocs:inno setup examples output [files] source: "innocallback.dll"; destdir: "{tmp}"; flags: dontcopy [code] #ifdef unicode #define aw "w" #else #define aw "a" #endif const gwl_wndproc = -4; wm_mousemove = $0200; type wparam = uint_ptr; lparam = longint; lresult = longint; twindowproc = function(hwnd: hwnd; umsg: uint; wparam: wparam; lparam: lparam): lresult; function setcapture(hwnd: hwnd): hwnd; external 'setcapture@user32.dll stdcall'; function releasecapture: bool; external 'releasecapture@user32.dll stdcall'; func...
Read more