Tomcat 7 User Guide Pdf

Tomcat 7 user guide pdf

This document provides some basic information about Tomcat. Some of the topics covered here are:. Hopefully this should be enough for any new user to get started with Tomcat.

If something is missing then try in this order :. If you have any comments or suggestions about this document don't hesitate to send them to the Tomcat mailing lists.

Tomcat is a servlet container with a JSP environment. A servlet container is a runtime shell that manages and invokes servlets on behalf of users.

Apache tomcat 7 user guide pdf

Tomcat can be used as either a stand-alone container mainly for development and debugging or as an add-on to an existing web server currently Apache, IIS and Netscape servers are supported. This means that whenever you are deploying Tomcat you will have to decide how to use it and, if you select options 2 or 3, you will also need to install a web server adapter.

This is a common misunderstanding. Jserv is a Servlet API 2.

Apache Tomcat 7 User Guide - The Apache Software Foundation - Google книги

Tomcat is a complete re-write and is a Servlet API 2. Tomcat uses some of the code written for Jserv, especially Jserv's Apache server adapter, but this is where the similarities end.

That's it! You can now execute Tomcat and it will run as a stand-alone type 1 servlet container. Tomcat is a Java program, and therefore it is possible to execute it from the command line, after setting several environment variables. However, setting each environment variable and following the command line parameters used by Tomcat is error prone and tedious.

Instead, the Tomcat development team provides a few scripts to ease starting and stopping Tomcat. What are these scripts?

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The following table presents the scripts that are most important for the common user:. The script which has the most significance for users is tomcat tomcat. The other Tomcat related scripts serve as a simplified single-task oriented entry point to the tomcat script set different command line parameters etc.

A closer look at tomcat. For example, if server. As you can see, the Win32 version of tomcat. Tomcat's configuration is based on two files: server. This section will deal with how to use these files. We are not going to cover the internals of web. Instead we will cover the content of server. It serves two goals: Providing initial configuration for the Tomcat components.

Documentation Index

Specifying structure for Tomcat, meaning, letting Tomcat boot and build itself by instantiating components as specified in server. The important elements in server.

Tomcat 7 user guide pdf

Server defines a single Tomcat server. Generally you should not bother with it too much. A Server element can contain elements of type Logger and ContextManager.

Product details

Logger This element defines a logger object. Each logger has a name to identify it, as well as a path to the log file to contain the logger output and a verbosityLevel that specifies the log level. Currently there are loggers for the servlets where the ServletContext. The ContextManager has a few attributes that provides it with: Debug level used for logging debug messages.

The name of the working directory. A flag to control whether stack traces and other debug information is included in the default responses.

For example, the ContextInterceptor listens for startup and shutdown events of Tomcat, and the RequestInterceptor watches the various phases that user requests need to pass during it's service. Tomcat's administrator doesn't need to know much about the interceptors; a developer on the other hand should know that this is how "global" type of operations can be implemented in Tomcat for example, security and per request logging. Connector The Connector represents a connection to the user, either through a web server or directly to the user's browser in a stand-alone configuration.

The configuration of the connectors includes information such as: The handler class.

Install and Configure Apache Tomcat Web Server in Eclipse IDE

We will describe how to use this Connector configuration later in the document. Context Each Context represents a path in the Tomcat hierarchy where you place a web application.

Tomcat 7 user guide pdf

A Tomcat Context has the following configuration: The path where the context is located. This can be a full path or relative to the ContextManager's home.

Debug level used for logging debug messages. A reloadable flag. When developing a servlet it is very convenient to have Tomcat reload it upon change, this lets you fix bugs and have Tomcat test the new code without the need to shutdown and restart.

To turn on servlet reloading set the reloadable flag to true. Detecting changes however is time consuming; moreover, since the new servlets are getting loaded in a new class-loader object there are cases where this class-reloading trigger casts errors. To avoid these problems you can set the reloadable flag to false; this will disable the autoreload feature.

Additional information may be found within the server. You need to set up the required files inside the home:.

Tomcat - A Minimalistic User's Guide

If the ContextManager. A detailed description of web.

Tomcat 7 user guide pdf

There is however a small Tomcat related "feature" that is related to web. Tomcat lets the user define default web.

Tomcat 7 user guide pdf

When constructing a new Context, Tomcat uses the default web. Up until now we have not discussed Tomcat as a server add on, instead we have considered it as a stand-alone container and discussed how it can be used.

There are however a few problems with this picture: Tomcat is not as fast as Apache when it comes to static pages. Tomcat is not as configurable as Apache.

Tomcat 7 user guide pdf

Tomcat is not as robust as Apache. We cannot assume that all of them will want to ditch this legacy. We are not going to cover the different configuration in depth, instead we will: Cover the fundamental behavior of the web server.

Explain what configuration is needed. Demonstrate this on Apache.

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When these requests arrive the server does whatever is needed to serve the requests by providing the necessary content. Adding a servlet container may somewhat change this behavior.

Now the web server needs also to perform the following:. The adapter on the other hand needs to know what requests it is going to serve, usually based on some pattern in the request URL, and to where to direct these requests. Things are even more complex when the user wants to set a configuration that uses virtual hosts, or when they want multiple developers to work on the same web server but on different servlet container JVMs.

Tutorial 2 - Howto install Apache Tomcat 7 on Ubuntu

We will cover these two cases in the advanced sections. The most obvious configuration that one can think of is the identity of the servlet URLs that are under the responsibility of the servlet container. This is clear; someone must know what requests to transmit to the servlet container All this information must appear either in the web server configuration, or in a private configuration files used by the adapter.

The next section will demonstrate how configuration can be implemented on Apache. This section shows you how to configure Apache to work with Tomcat; it tries to provide explanations as well as insight for the configuration directives that you should use. You can find additional information in the jserv install page. If you have special needs, for example an AJP port other the , you can use this file as a base for your customized configuration and save the results in another file.

If you manage the Apache configuration yourself you'll need to update it whenever you add a new context. Tomcat: you must restart tomcat and apache after adding a new context; Apache doesn't support configuration changes without a restart. The Apache-Tomcat configuration uses Apache core configuration directives as well as Jserv unique directives so it may confuse you at first, there are however two things simplifying it:. As you can see the configuration process was split into 4 steps that will now be explained:.

Now that you understand the different configuration instructions in the sample file, how can you add it to the Apache configuration? One "simple" method is to write its content in the httpd. Instead you should use the Apache include directive. At the end of the Apache configuration file httpd. It should now be able to connect to Tomcat.

Tomcat 7 user guide pdf

As previously stated, we need a web server adapter to sit in Apache and redirect requests to Tomcat. Uncompress it into some directory.

Unzip it into some directory. See the Apache documentation for building ApacheCore. Execute the build command nmake -f Makefile. Do we really want that? There are many static files that may be a part of our servlet context for example images and static HTML , why should Tomcat serve these files?