Tomcat shows 404 - java

I've got a Java EE project that works ok in Eclipse. But when I deploy it to a server with a normal Tomcat-7 it shows a 404 error on every servlet page (while .jsp works).
I've tried to deploy there a .war file and tried to just copy the whole project folder including the WEB-INF directory. The result is the same.
web.xml file contains the following:
<?xml version="1.0" encoding="ASCII"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<display-name>acs</display-name>
<servlet>
<display-name>jsp</display-name>
<servlet-name>jsp</servlet-name>
<servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>jsp</servlet-name>
<url-pattern>*.jsp</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.html</url-pattern>
<url-pattern>*.png</url-pattern>
<url-pattern>*.gif</url-pattern>
<url-pattern>*.jpg</url-pattern>
<url-pattern>*.css</url-pattern>
<url-pattern>*.js</url-pattern>
<url-pattern>*.svg</url-pattern>
<url-pattern>*.kml</url-pattern>
</servlet-mapping>
</web-app>
The every servlet class contains annotations like that
#WebServlet("/full")
So why it's happening? And is there a way to know where Tomcat trying to search that servlets? Or something. So now I'm like standing before the wall and it shows me 404 and I'm do not have a tiny idea what's going wrong...

For every servlet we are adding 2 main tags < servlet > and < servlet-mapping > like
<servlet>
<display-name>jsp</display-name>
<servlet-name>jsp</servlet-name>
<servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>jsp</servlet-name>
<url-pattern>*.jsp</url-pattern>
</servlet-mapping>
While for "default" servlet I have not found the < servlet > tag with servlet-class mapping

Related

why when rewrote web app to multi module style a have "Error instantiating servlet class [servlet.LoginServlet]"

I understand that there are a lot of similar questions, but i can't find where is my problem. So, my question is: When I had all my code in src package of my project and when I started my tomcat app all was good, but when I rewrote my app to multi module architecture I got error. Maybe I should change some paths or so on? In root target web.xml it gives me:
my web.xml: https://i.stack.imgur.com/K8wRE.png
this is error screen: https://i.stack.imgur.com/7j1Ac.png
my target/web.xml: https://i.stack.imgur.com/Oknrq.png
Building with mvn clean package is ok.
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<display-name>MyWebApp</display-name>
<servlet>
<servlet-name>WelcomeServlet</servlet-name>
<servlet-class>servlet.WelcomeServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>WelcomeServlet</servlet-name>
<url-pattern>/welcome</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>CustomerServlet</servlet-name>
<servlet-class>servlet.CustomerServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>LoginServlet</servlet-name>
<servlet-class>servlet.LoginServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>LogoutServlet</servlet-name>
<servlet-class>servlet.LogoutServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>RegisterServlet</servlet-name>
<servlet-class>servlet.RegisterServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>RegisterServlet</servlet-name>
<url-pattern>/register</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>LoginServlet</servlet-name>
<url-pattern>/login</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>LogoutServlet</servlet-name>
<url-pattern>/logout</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>CustomerServlet</servlet-name>
<url-pattern>/customers</url-pattern>
</servlet-mapping>
</web-app> ```
Thanks for attention.
So, my solution was to change artifact. When I change the location of my tomcat webserver, I should change artifact
The Maven dependencies of IntelliJ are not up to date, see the "m"-button. This might be the cause of the problem.
Click on the "m"-button with "turning arrows" in the top right corner of your editor window.
mvn and IntelliJ manage dependencies independently.

404 Not Found error was encountered while trying to use an ErrorDocument to handle the request

I am developing a website and i am finding hosting issues. I have put all my .jsp files in the root directory.
I am able to see the JSPs (accessing directly to them).
But, when i try to perform the same check the WEB-INF/classes, I get the error:
Not Found The requested URL /AC/SearchController was not found on this server. Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
This is my Web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>AC</display-name>
<welcome-file-list>
<welcome-file>Home.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>AdvisorProfileServlet</servlet-name>
<servlet-class>org.AC.controller.AdvisorProfileServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>AdvisorProfileServlet</servlet-name>
<url-pattern>/AC/AdvisorProfilePage?aId=*</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>ForgotPasswordRedirectController</servlet-name>
<servlet-class>org.AC.controller.ForgotPasswordURLController</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ForgotPasswordRedirectController</servlet-name>
<url-pattern>/ForgotPasswordAdvisor</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>AdvisorMyAccountRequest</servlet-name>
<servlet-class>org.AC.controller.AdvisorMyAccountRequestController</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>AdvisorMyAccountRequest</servlet-name>
<url-pattern>/AC/requests.jsp</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>ForgotPasswordRedirectControllerUser</servlet-name>
<servlet-class>org.AC.controller.UserForgotPasswordURLController</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ForgotPasswordRedirectControllerUser</servlet-name>
<url-pattern>/ForgotPasswordUser</url-pattern>
</servlet-mapping>
</web-app>
This might also be a server config, because I created the project on Tomcat server 8, but I guess the server which is now hosting it is Tomcat 7.
How can I resolve this?
Please declare "/AC/SearchController" as url pattern in your web.xml

Migrating tomcat war to glassfish

I have a running war servlet in tomcat6. It works fine in tomcat. Now I need to migrate it to glassfish and it doesn't work.
First it show a big amount of problems (context, path null, etc) So I decided to create a new project in eclipse and copy all my classes in java and libraries to the new one.
Now I have a problem because I can upload the new .war to glassfish but servlet doesn't answer to my queries.
I think I have a problem with my glassfish-web.xml and almost sure with other things which I don't know.
The autogenerated glassfish-web.xml is this one:
<!DOCTYPE glassfish-web-app PUBLIC "-//GlassFish.org//DTD GlassFish Application Server 3.1 Servlet 3.0//EN" "http://glassfish.org/dtds/glassfish-web-app_3_0-1.dtd">
<glassfish-web-app>
<context-root>/TEST</context-root>
</glassfish-web-app>
And the path to one of my resources is this one: /students (class path) /listNames (method resource inside class)
So I guess I should use this url to access to my resource: localhost:port/nameOfMyWar/TEST/students/listNames
But it shows a white screen in my browser and log doesn't show anything.
What do I have to modify from a tomcat servlet project to adapt to a glassfish project? Is there a guide or some webpage with clues?
This is my actual web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>SERVLET</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
<welcome-file>/axis2-web/index.jsp</welcome-file>
</welcome-file-list>
<servlet>
<description>JAX-RS Tools Generated - Do not modify</description>
<servlet-name>JAX-RS Servlet</servlet-name>
<servlet-class>org.apache.wink.server.internal.servlet.RestServlet</servlet-class>
<init-param>
<param-name>javax.ws.rs.Application</param-name>
<param-value>com.my.example.servlet</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>JAX-RS Servlet</servlet-name>
<url-pattern>/servlet/*</url-pattern>
</servlet-mapping>
<servlet>
<display-name>Apache-Axis Servlet</display-name>
<servlet-name>AxisServlet</servlet-name>
<servlet-class>org.apache.axis2.transport.http.AxisServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>AxisServlet</servlet-name>
<url-pattern>/servlet/AxisServlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>AxisServlet</servlet-name>
<url-pattern>*.jws</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>AxisServlet</servlet-name>
<url-pattern>/services/*</url-pattern>
</servlet-mapping>
<servlet>
<display-name>Apache-Axis Admin Servlet Web Admin</display-name>
<servlet-name>AxisAdminServlet</servlet-name>
<servlet-class>org.apache.axis2.webapp.AxisAdminServlet</servlet-class>
<load-on-startup>100</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>AxisAdminServlet</servlet-name>
<url-pattern>/axis2-admin/*</url-pattern>
</servlet-mapping>
</web-app>

Couldn't access index.html in my WebContent folder

I have tried to find a solution searching on Google, but did not succeed.
This is the structure of my application's folder.
<PROJECT_NAME>
--->WebContent
--->index.html
--->WEB-INF
--->META-INF
I deployed my application in Tomcat server.
My web.xml config file is the following:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>fp</display-name>
<servlet>
<servlet-name>FpServlet</servlet-name>
<servlet-class>com.fp.FpServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.html</url-pattern>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>FpServlet</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>
I try to access localhost:8080/project_name/,and everything works fine, but when I try to access the index.html file like this localhost:8080/project_name/index.html, it doesn't show the index.html content. It shows my root project content. (localhost:8080/project_name/)
How can I get the index file content posted in the browser?
Any help will be very appreciated.
Please note that the folder is named "WEB-INF", not "WEB.INF".
You can use default servlet to serve your static resources. Here is how this can be used with tomcat:
<servlet>
<servlet-name>default</servlet-name>
<servlet-class>
org.apache.catalina.servlets.DefaultServlet
</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.html</url-pattern>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>

How do I remove ending "/" from URL path in a Servlet?

I want to map my RPC service to http://path.com/RPC2 rather than /RPC2/
Inside my web.xml file, I currently have the url-pattern set to /
<servlet-mapping>
<servlet-name>RPC2</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
I tried to merely remove the url-pattern, but this didn't work. When I remove the url-pattern entry, Tomcat won't deploy it and Jetty works but at ../RPC2/
Here's the full XML file:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<servlet>
<description>Automatos RPC Server</description>
<servlet-name>RPC2</servlet-name>
<servlet-class>RPCServlet</servlet-class>
<init-param>
<param-name>streamMessages</param-name>
<param-value>1</param-value>
</init-param>
<init-param>
<!-- Optional! Defaults to text/xml and ISO-8859-1 -->
<param-name>contentType</param-name>
<param-value>text/xml; charset=ISO-8859-1</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>RPC2</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
</web-app>
Deploy your webapp on context root (in Tomcat, just rename the WAR to ROOT.war or set <Context path=""> instead of <Context path="/RPC2">). This way your webapp will be deployed to http://path.com. This way you can map the servlet on an URL pattern of /RPC2 and the servletcontainer won't auto-redirect to the webapp root / anymore.

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