无法打开“Tomcat Web应用程序管理器”

Question

I am new to java web programming and eclipse-apache Tomcat. I have small login web-application which includes (one jsp page , one servlet class).

I want to configure/deploy this application on apache web application manager. I mean I don't want to run this application in eclipse. I hope you understand my point.

Whenever I run my server in eclipse it run successfully. But when I want to open apache default page by typing http://localhost:8080 or http://localhost:8080 to configure my app It wouldn't open.

Please advice me.

Answer 1

To deploy a web application on Tomcat, you need to first compile your web application into a WAR file. Then, take that WAR file (let's assume it's called "MyApp.WAR") and put that into the tomcat/webapps directory. Restart the tomcat service. Tomcat will extract that WAR to a folder in the webapps directory. After that, any request to localhost:8080/MyApp will go to your webapp.

Answer 2

Make sure you have java installed, and add JAVA_HOME to your environment variable. (it is the path to java installation directory for eg C:\\Program Files\\java\\jdk-1.6) ie JAVA_HOME=C:\\Program Files\\java\\jdk-1.6

install TOMCAT from here " http://tomcat.apache.org/download-70.cgi " make sure you do not install it in you "c:\\program files" due to some permission issues.

Lets say you installed tomcat at "c:\\webserver\\apache-tomcat\\" this is your CATALINA_HOME, add it to your environment variable ie CATALINA_HOME=c:\\webserver\\apache-tomcat\\

to acess tomcat webapp manager you need to configure user in %CATALINA_HOME%\\conf\\tomcat-users.xml Add a role and a user :

Have your WAR file ready with you (this is how you create WAR " How to make war file in Eclipse ")

move your WAR file to "%CATALINA_HOME%\\webapp" directory. lets say "TestWeb.WAR" is your application with index.jsp page in it.

Now go to your %CALALINA_HOME%\\bin and launch the startup.bat file (you would be using startup.bat to start and shutdown.bat to stop tomcat)

once tomcat is up and running check http://localhost:8080 is working fine. PS If port 80 is already in use then try configuring your tomcat to some other unused PORT here " http://www.mkyong.com/tomcat/how-to-change-tomcat-default-port/ "

go to your browser type http://localhost:8080/TestWeb/index.jsp

now you can to lot of configuration to your web app like having a default page and all Hope this help you !

Answer 3

Normally eclipse uses Tomcat as an eclipse project, hence it uses metadata.

Server > Double click on the tomcat server instance > Server Location > Select "Use Tomcat installation"

Update: Tested just now. Set Deploy path to webapps folder. Works fine :)