97 lines
4.6 KiB
HTML
97 lines
4.6 KiB
HTML
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
||
|
|
<html>
|
||
|
|
<head>
|
||
|
|
<META http-equiv="Content-Type" content="text/html; charset=utf-8">
|
||
|
|
<LINK rel="stylesheet" type="text/css" href="../../../rzahg/ic.css">
|
||
|
|
<title>Troubleshoot: Access Web resources</title>
|
||
|
|
</head>
|
||
|
|
<BODY>
|
||
|
|
<!-- Java sync-link -->
|
||
|
|
<SCRIPT LANGUAGE="Javascript" SRC="../../../rzahg/synch.js" TYPE="text/javascript"></SCRIPT>
|
||
|
|
<h3>Troubleshoot: Access Web resources</h3>
|
||
|
|
<p>Use the resources listed below to determine the cause of problems that occur
|
||
|
|
when you are unable to access Web resources:</p>
|
||
|
|
<p><strong>Unable to serve any Web resources</strong></p>
|
||
|
|
<ul>
|
||
|
|
<li>
|
||
|
|
<p>See the <a href="../install/install.htm">installation of WebSphere Application
|
||
|
|
Server - Express for iSeries</a> topic. The topic will guide you through
|
||
|
|
the system verification and serving of a Web resource. </p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>If you are using HTTP Server (powered by Apache), generate a trace on
|
||
|
|
your HTTP Server instance and look for errors. See <a href="trbappsrvtrace.htm">Use
|
||
|
|
the application server trace service </a>for more information.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>Web server plug-in trace.</p>
|
||
|
|
<p>The plug-in log records HTTP server-side processing and servlet request
|
||
|
|
routing between the HTTP Server and WebSphere Application Server - Express.
|
||
|
|
(The plug-in connects the HTTP Server and WebSphere Application Server
|
||
|
|
- Express together.)</p>
|
||
|
|
<p>Manage this log by editing the application server plugin-cfg.xml file.
|
||
|
|
The plugin-cfg.xml file contains a tag near the beginning named Log. Log
|
||
|
|
has two attributes: LogLevel and Name.</p>
|
||
|
|
<ul>
|
||
|
|
<li>
|
||
|
|
<p>LogLevel specifies the amount and type of information that is logged
|
||
|
|
to a file. Valid values are Trace, Warn, and Error.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>Name specifies the location and name of the file where logging information
|
||
|
|
is written.</p>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
|
</li>
|
||
|
|
<li>Read the release notes. See <a href="http://www-1.ibm.com/servers/eserver/iseries/software/websphere/wsappserver/express/docs/relnotesexp50.html" target="_new">WebSphere
|
||
|
|
Application Server - Express Release Notes</a> <img src="www.gif" width="18" height="15" alt="Link outside Information Center" border="0"> for
|
||
|
|
more information.</li>
|
||
|
|
</ul>
|
||
|
|
<p><strong>Unable to serve a particular Web resource</strong></p>
|
||
|
|
<ul>
|
||
|
|
<li>
|
||
|
|
<p>Check the application server standard output and standard error log files
|
||
|
|
for errors. For information on the application server log files and where
|
||
|
|
they are located, see <a href="trblogs.htm">WebSphere Application Server
|
||
|
|
- Express log files</a>. </p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>Read the release notes. See <a href="http://www-1.ibm.com/servers/eserver/iseries/software/websphere/wsappserver/express/docs/relnotesexp50.html" target="_new">WebSphere
|
||
|
|
Application Server - Express Release Notes</a> <img src="www.gif" width="18" height="15" alt="Link outside Information Center" border="0"> for
|
||
|
|
more information.</p>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
|
<p><strong>Servlet or JSP displays an error or Java exception instead of the
|
||
|
|
expected output</strong></p>
|
||
|
|
<ul>
|
||
|
|
<li>
|
||
|
|
<p>Check the application server standard output and standard error log files
|
||
|
|
for errors. For information on the application server log files and where
|
||
|
|
they are located, see <a href="trblogs.htm">WebSphere Application Server
|
||
|
|
- Express log files</a>. </p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>Add logging and tracing to your application with the JRas framework. See <a href="trbappsrvtrace.htm">Use
|
||
|
|
the application server trace service</a> for more information. </p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>Add output to your servlet, JSP, or Java code in the form of System.out.println()
|
||
|
|
statements to aid in debugging. The output from any System.out.println()
|
||
|
|
statements is written to the standard output log file for the application
|
||
|
|
server in which the code is running. For information on the application
|
||
|
|
server log files and where they are located, see <a href="trblogs.htm">WebSphere
|
||
|
|
Application Server - Express log files</a>. </p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>If the failure occurs within a JSP, use the keepgenerated attribute to
|
||
|
|
keep the generated servlet source file to inspect for errors.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>Read the release notes. See <a href="http://www-1.ibm.com/servers/eserver/iseries/software/websphere/wsappserver/express/docs/relnotesexp50.html" target="_new">WebSphere
|
||
|
|
Application Server - Express Release Notes</a> <img src="www.gif" width="18" height="15" alt="Link outside Information Center" border="0"> for
|
||
|
|
more information.</p>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
|
</body>
|
||
|
|
</html>
|