What is Tomcat WEB INF?
WEB-INF. This directory, which is contained within the Document Root, is invisible from the web container. It contains all resources needed to run the application, from Java classes, to JAR files and libraries, to other supporting files that the developer does not want a web user to access.
What is classpath in Tomcat?
Why classpaths cause trouble for Tomcat users A classpath is an argument that tells the JVM where to find the classes and packages necessary to run a program. The classpath is always set from a source outside the program itself.
Is WEB INF in classpath?
No, it’s not in the classpath. /WEB-INF/classes is on the classpath though, and so are the JAR files in /WEB-INF/lib .
What is ClassLoader in Tomcat?
Overview. Like many server applications, Tomcat installs a variety of class loaders (that is, classes that implement java. lang. ClassLoader ) to allow different portions of the container, and the web applications running on the container, to have access to different repositories of available classes and resources.
What is the difference between Web-INF and META INF?
The META-INF directory is private and can’t be accessed from the outside. On the other hand, it also contains the WEB-INF public directory with all the static web resources, including HTML pages, images, and JS files. Moreover, it contains the web. xml file, servlet classes, and libraries.
What does Web-INF mean?
The WEB_INF folder contains the web. xml (deployment descriptor) file, the classes, external libs etc and as web. xml file contains the information about the container urls, files etc, the folder is known as WEB-INF .
Where is Catalina SH Tomcat 9?
CATALINA_HOME: Represents the root of your Tomcat installation, for example /home/tomcat/apache-tomcat-9.0. 10 or C:\Program Files\apache-tomcat-9.0.
What is Lib folder in Tomcat?
Tomcat’s classpath home}/lib folders (which by default are equal to the lib folder of your Tomcat installation) are loaded by the common classloader. Classes in the WEB-INF/classes and jars in the WEB-INF/lib folder (or WAR archive) are loaded by the web application class loader.
Where do I put jar files in tomcat?
Tomcat JAR deployment options
- Package the JAR file in the WEB-INF\lib folder of the Java web application;
- Place the JAR file in the \lib subfolder of the Apache Tomcat installation;
- Configure a folder for shared JAR files by editing Tomcat’s common. loader property in the catalina. properties file.
What is bootstrap jar in Tomcat?
$CATALINA_HOME/bin/bootstrap. jar — Contains the main() method that is used to initialize the Tomcat server, and the class loader implementation classes it depends on.
What does WEB-INF mean?