133 Servlet Chaining Java Web Application to demonstrate Use include, forward collaboration смотреть онлайн

#Java #Web #Application to demonstrate the Use of requestDispatcher.include(req,res) and requestDispatcher.forward(req,res) method in #Servlet #Chaining Or #collaboration:
42IncludeForwardDeployment Directory Structure:
----------------
|--------main.html
|--------search.html
|--------WEB-INF
|--------lib
|--------ojdbc14.jar
|--------web.xml
|--------classes
|--------DummyServlet.java
|--------DBServlet.java
|--------ProcessServlet.java
|--------*.class
Step 1) Create DDS under web apps folder of Tomcat
"42IncludeForward"

C:\Program Files\Apache Software Foundation\Tomcat 9.0\webapps\42IncludeForward

- Create WEB-INF Folder under 42IncludeForward folder
- create lib, classes directory under WEB-INF folder

Step 2) add ojdbc14.jar under lib folder to interact with Oracle Database table to fetch the data.

Step 3) Create main.html, search.html file under C:\Program Files\Apache Software Foundation\Tomcat 9.0\webapps\42IncludeForward

Step 4) Create DummyServlet.java, ProcessServlet.java, DBServlet.java under C:\Program Files\Apache Software Foundation\Tomcat 9.0\webapps\42IncludeForward\WEB-INF\classes folder

Step 5) web.xml file

Step 6) Compile java files/classes

go to command prompt
C:\Program Files\Apache Software Foundation\Tomcat 9.0\webapps\42IncludeForward\WEB-INF\classes javac *.java


Step 7) Start the tomcat server

C:\Program Files\Apache Software Foundation\Tomcat 9.0\bin\Tomcat9.exe


Step 8) Test the web application from browser window

http://localhost:2020/42IncludeForward/main.html


Recompile DBServlet.java

Reload teh web app


#Java web application to perform servlet chaining/collaboration between different web applications to two different Servlet programs residing in same server.

2 different web application