从Servlet调用HTML文件

Question

I have a file called index.html which has been placed directly inside WebContent and all the script files are in the right place as well.

The servlet looks like this:

public class CreateService extends HttpServlet {
   private static final long serialVersionUID = 1L;

   public CreateService() {
      super();
   }

   protected void doGet(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
         doPost(request,response);
   }

   //calling html file instead of jsp 
   protected void doPost(HttpServletRequest request, HttpServletResponse response) 
      throws ServletException, IOException {

         String gisuniqkey=request.getParameter("gisuniqkey");
         RequestDispatcher reqDispatcher = 
             getServletConfig().getServletContext()
                .getRequestDispatcher("/index.html");
         reqDispatcher.forward(request,response);       
   }
}

When I try to load the url in the server says that the resource could not be found.This is the error that I get:

org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/share/tomcat7/common/classes], exists: [false],     
isDirectory: [false], canRead: [false]
org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/share/tomcat7/common], exists: [false],   
isDirectory: [false], canRead: [false]
org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/share/tomcat7/server/classes], exists: [false],   
isDirectory: [false], canRead: [false]
org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/share/tomcat7/server], exists: [false],  
isDirectory: [false], canRead: [false]
org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/share/tomcat7/shared/classes], exists: [false],   
isDirectory: [false], canRead: [false]
org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/share/tomcat7/shared], exists: [false],   
isDirectory: [false], canRead: [false]
org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property  
'source' to 'org.eclipse.jst.jee.server:TestProject' did not find a matching property.
PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8180"]
org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 1481 ms
org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.35
org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8180"]
org.apache.catalina.startup.Catalina start
INFO: Server startup in 2767 ms

The folder structure looks like this:

.:
assets               images        META-INF             test.jsp
CreateScenario.jsp   index.html    ms.jsp               UpdateScenario.jsp
cs.jsp               index.jsp     multipleDisplay.jsp  WEB-INF
css                  js            objtype.json
DisplayScenario.jsp  JsonData      Scenario.json
EditScenario.jsp     jsonscenario  scripts

./scripts:
gmaps_createScenario.js  gmaps_drawPolygon.js  info.js  maploader.js
gmaps_drawLine.js        gmaps_events.js       lib
gmaps_drawMarker.js      gmaps.js              main.js

./scripts/lib:
backbone.min.js  jquery.min.js  plugins  require.js  underscore.min.js

./scripts/lib/plugins:
async.js   font.js  image.js  mdown.js  propertyParser.js
depend.js  goog.js  json.js   noext.js

This is the web.xml file in a pastebin

This was in MainService ,I believe that this redirects to CreateService :

 RequestDispatcher reqDispatcher = getServletConfig().getServletContext().getRequestDispatcher("/CreateService");
        reqDispatcher.forward(request,response);

This throws the following error when I try and call the url:

 Server Tomcat v7.0 Server at localhost was unable to start within 45 seconds. If the    
 server requires more time, try increasing the timeout in the server editor.

Answer 1

So you are trying to call http://localhost:8180/GisProject/MainService? which will invokde MainService class according to your web.xml . However what you show here is CreateService which will get invoked if you call http://localhost:8180/GisProject/CreateService .

If what you want is to display index.html when calling http://localhost:8180/GisProject/MainService then you have to move the implementation to MainService class.