HTTP Error 404 when running Tomcat from Eclipse

Question

I have installed Eclipse and Tomcat 7  The error is that when I run Tomcat from Eclipse it starts  but after that  when I open localhost 8080 in Google Chrome I get HTTP Error 404    How can I solve this  please

User · Answer

If you changed the location  using option  Use custom location  does not modify Tomcat installation   and the deployed directory is  wtpwebapps  then you ll have to                Swtich Location from  workspace metadata  to  Servers Tomcat v      click Apply  OK           Retart server and if you find 404 error message than the server is working  it just doesn t have the startup file at the web-server location you have chosen  If you traverse to that location  you ll find a bunch of directories that was created  One of which is wtpwebapps  under which there is ROOT  This is your web-server s directory  You will need to go back to installed Tomcat directory and copy the content of  lt tomcat s installed dir gt  web-apps ROOT to your wtpwebapps  Restart the webserver and you should see the tomcat default page            For Server Status  Manager Apps and Host Manager to work  you ll have to copy other subdirectories from  lt tomcat s installed dir gt  webapps  ie  docs  examples  host-manager  manager  to your  webapps   NOT the wtpwebapps  directory            Edit the   lt your web directory gt  conf tomcat-users xml  and enter something like                   lt role rolename  manager-gui   gt         lt role rolename  manager-status   gt         lt role rolename  manager-jmx   gt         lt role rolename  manager-script   gt         lt role rolename  admin-gui   gt         lt role rolename  admin   gt         lt user username  admin  password  yourpassword  roles  admin  admin-gui  manager-gui   gt                    Then edit the   lt your web directory gt  conf server xml   add the attribute               readonly  true           into the  lt Resource  gt  key of the  lt GlobalNamingResources  gt  group            Restart the server and try to login with the configured credentials                      NOTE  if you change the server configuration  say if you like to compare the default configuration  use tomcat installation directory  and the  new directory   when switching back to the  new directory  this  tomcat-users xml  will be overwritten by the default file  so SAVE THE CONTENT OF THIS FILE somewhere before doing that  then copy it back  If you only give the the username  admin  role  you will be prompted of help messages  It says  you should not grant the admin-gui  or manager-gui role the  manager-jmx  and  manager-script  roles

User · Answer

First  stop your Tomcat  then double click your server  click Server Locations and check Use Tomcat Installation  takes control of Tomcat installation

User · Answer

Eclipse forgets to copy the default apps  ROOT  examples  etc   when it creates a Tomcat folder inside the Eclipse workspace  Go to C  apache-tomcat-7 0 34 webapps  R-click on the ROOT folder and copy it  Then go to your Eclipse workspace  go to the  metadata folder  and search for  wtpwebapps   You should find something like your-eclipse-workspace metadata plugins org eclipse wst server core tmp0 wtpwebapps  or     tmp1 wtpwebapps if you already had another server registered in Eclipse   Go to the wtpwebapps folder  R-click  and paste ROOT  say  yes  if asked if you want to merge replace folders files   Then reload http   localhost  to see the Tomcat welcome page

User · Answer

I had this or a similar problem after installing Tomcat   The other answers didn t quite work  but got me on the right path   I answered this at https   stackoverflow com a 20762179 3128838 after discovering a YouTube video showing the exact problem I was having

User · Answer

Another way to fix this would be to go to the properties of the server on eclipse  right click on server -  properties  In general tab you would see location as workspace metadata  Click on  switch location

User · Answer

Check the server configuration and folders  routes    Open servers view  Window -  Open view    -  Others    -  Search for  servers   Right click on server  mine is Tomcat v6 0  -  properties -  Click on  Swicth Location   check that location s like  servers    Double click on the server  This will open a new servers page  In the  Servers Locations  area  check the  Use Tomcat Installation  takes control of Tomcat Installation   option  Restart your server  Enjoy

User · Answer

Click on Window   Show view   Server OR right click on the server in  Servers  view  select  Properties   OR Open the Overview screen for the server by double clicking it  In the Server locations tab   select  Use Tomcat location   Save the configurations and restart the Server    This way Eclipse will take full control over Tomcat  this way you ll also be able to access the default Tomcat homepage with the Tomcat Manager when running from inside Eclipse   Screenshot is attached here

User · Answer

It is because there is no default ROOT web application  When you create some web app and deploy it to Tomcat using Eclipse  then you will be able to access it with the URL in the form of  http   localhost 8080 YourWebAppName   where YourWebAppName is some name you give to your web app  the so called application context path       Quote from Jetty Documentation Wiki  emphasis mine       The context path is the prefix of a URL path that is used to select   the web application to which an incoming request is routed  Typically   a URL in a Java servlet server is of the format   http   hostname com contextPath servletPath pathInfo  where each of   the path elements may be zero or more   separated elements  If there   is no context path  the context is referred to as the root context      If you still want the default app which is accessed with the URL of the form  http   localhost 8080   or if you change the default 8080 port to 80  then just  http   localhost   i e  without application context path read the following  quote from Tutorial  Installing Tomcat 7 and Using it with Eclipse  emphasis mine       Copy the ROOT  default  Web app into Eclipse  Eclipse forgets to copy   the default apps  ROOT  examples  docs  etc   when it creates a Tomcat   folder inside the Eclipse workspace  Go to   C  apache-tomcat-7 0 34 webapps and copy the ROOT folder  Then go to   your Eclipse workspace  go to the  metadata folder  and search for    wtpwebapps   You should find something like   C  your-eclipse-workspace-location  metadata  plugins org eclipse wst server core tmp0 wtpwebapps    or     tmp1 wtpwebapps if you already had another server registered   in Eclipse   Go to the wtpwebapps folder and paste ROOT  say  yes  if   asked if you want to merge replace folders files   Then reload   http   localhost  to see the Tomcat welcome page

[eclipse] HTTP Error 404 when running Tomcat from Eclipse

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