Tomcat starts but home page cannot open with url http localhost 8080

Question

I am a newbie in Java  and I am trying to develop a web application   I have Windows 7 32 bit  I have installed Java 7 and set the path and classpath as well  After that I installed Tomcat 7    When I try to open tomcat home page using URL localhost 8080  it does not open and Tomcat stops automatically    Please help me

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For  windows user  type netstat -anin command prompt to see ports that are listening  this may come handy

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In my case  the port that tomcat was running on was defined in an application properties file for 8000  not 8080  In my case  it looked like the same problem described here  Just leaving this here in case anyone has a similar setup and issue

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I had the same issue  My tomcat was started but I was getting HTTP 404 page not found However  in my situation  I installed tree instances of tomcat  Each instance contains conf  temp  work  webapps and logs folders  Unless I forgot  to copy the global web xml under conf folder of each tomcat       e g   opt tomcat mytomcatInstance conf web xml    The web xml Deployment Descriptor file describes how to deploy a web application in a servlet container   So even if my tomcat was up  my web apps could not be deployed properly

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I am using Eclipse Java EE IDE for Web Developers  Version  Oxygen 1a Release  4 7 1a  in Windows 8 1 x64 with Apache Tomcat 8 5 24  for testing purpose    Port Name  amp  Numbers for my Tomcat Server are   Tomcat admin port       8005 HTTP 1 1                8081  my Tomcat Listening Port Number  AJP 1 3                 8009  Peoples  for those the Tomcat were running good earlier  and sometimes sudden after stopping tomcat server explicitly by pressing the below shown image button or may be other reasons      Either they continuously failed to start restart the tomcat with below said error      Server Tomcat vX Y Server at localhost failed to start    or sometimes the Tomcat Server is started but instead of showing Tomcat Homepage in web browser  it is throwing client exception HTTP Status 404     Not Found  in preferred web browser   possibly  there are many reasons i e  wrong Host name defined  Wrong Tomcat Server Locations defined in eclipse  project JDK JRE version mismatch with Tomcat JRE dependent version  maven project version mismatch due to maven compiler source and maven compiler target version not defined under properties tag  mismatch version of project facet Dynamic Web Module to 2 5 3 0  Sometimes Tomcat Server is running on Windows Services level  previous stopped Tomcat port number were still listening and the processing pid were not killed in Tomcat defined timespan Timeouts Stop  in seconds   15 by default  in eclipse and pid still running  failed to start in defined Start  in seconds   XX  etc   Here I will give the resolution on  how to check and kill the running existing Tomcat port number s processing pid beware  you must be aware with after effects    In Windows  open you command prompt  and follow steps my tomcat HTTP port is 8081    netstat -ano   findstr  8081 TCP    0 0 0 0 8081           0 0 0 0 0              LISTENING       2284 TCP         8081                   0                 LISTENING       2284  if any listening is being there  above command will list details of port listening along with processing pid at last of the line here pid is 2284    now kill the running pid like   taskkill  PID 2284  F SUCCESS  The process with PID 2284 has been terminated   also illustrated the above two steps like following     Now  after resolving above illustrated reason  start the Tomcat Server

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If you have your tomcat started  in linux check with ps -ef   grep java  and you see it opened the port 8080 or the one you configured in server xml  check with netstat --tcp -na   grep  lt port number gt   but you still cannot access it in your browser check the following    It may start but with a delay of 3-5 minutes  Check the logs catalina out  You should see something like this when the server started completely  INFO  main  org apache catalina startup Catalina start Server startup in 38442 msIf you don t have this INFO line your server startup is not complete yet  The problem may occur due to the SecureRandom class responsible to provide random Session IDs and which can cause big delays during startup  Check more details and the solution here  Check your firewall  on linux iptables -L -n   You can try to reset your firewall completely iptables -F if you are not into an exposed environment  However  pay attention  that leaves you without protection therefore it can be dangerous  Check your selinux  if you are on linux     These are some of the most forgotten and not obvious issues in having your Apache Tomcat up and running

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If you started tomcat through eclipse  It can be solved in different ways too   Method 1    Right click on server --  Properties click on Switch location and apply       Method2    Double click in the server in eclipse  Change Server location to Use tomcat installation takes control of tomcat installation

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For mac users  First Try   go to activity monitor -  search for java and kill the instance then restart the server and try   Second Try  Check log file for any errors under tomcat logs folder   Use below command to check tomcat logs in terminal  tail -f  tomcatpath  logs catalina out   Third Try  Check if node or other apps using the same port  Use below command to check which app listening to a specific port  You will see list of apps with pid in second column   lsof -i  8080   grep LISTEN   Kill the process using below command  sudo kill -9 pid

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1  Using Terminal  On Linux   go to the apache-tomcat-directory bin folder    2  Type   catalina sh start  3  To stop Tomcat  type   catalina sh stop from the bin folder  For some reason   startup sh doesn t work sometimes

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The problems may happen because of memory issue  java lang OutOfMemoryError  Java heap space  please verify the logfile  any issues related to hardware memory

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Make sure no other application using port 8080 before starting tomcat  If that s not the problem please paste tomcat log   If you want to change tomcat s default port  go to tomcat folder and open conf folder  in which  you can see server xml  In that file you can see something like  lt Connector port    Change the port value and start tomcat

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If you are using eclipse to start the server then check for the server location being used and the deployment path     In my case changing this to Tomcat installation instead of workspace metadata worked for me

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For  Unix based systems  you can check the ports used by a particular application by issueing the following command in the terminal         netstat -tuplen   You will get the list of all the ports that are being currently held and used by their respective process ID s

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Look in TomcatDirectory logs catalina out for the logs  If the logs are too long  delete the catalina out file and rerun the app

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My issue has solved I was getting log as below   SEVERE  StandardServer await  create localhost 8005   java net BindException  Cannot assign requested address  JVM Bind  My tomcat server was automatically stopping when I tried to open tomcat homepage with URL   So I just made some changes in windows- System32- drivers- etc- host file  keep only 127 0 0 1 localhost and remove all other  your problem will be solved  Thank you guys for your help  D

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Your issue is not with port 8080  but with port 8005  Port 8005 is the shutdown port for Tomcat   Rather than trying to figure out what is using port 8005  it may just be easier to edit TOMCAT DIR conf server xml and change the shutdown port to 8006   lt Server port  8006  shutdown  SHUTDOWN  gt

[java] Tomcat starts but home page cannot open with url http://localhost:8080

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