Skip to main content

Setting up Java Servlet & JSP Environment With APACHE TOMCAT SERVER

=================================================================
Setting up Java Servlet and JSP Environment With APACHE TOMCAT SERVER
=================================================================
•    Required tools
    o    Jdk [eg. Jdk7.0]
    o    Apache Tomcat Server [eg. Tomcat 7.0]
 
     [Note: This tutorial will work on Apache tomcat  7.0]
     [Note: Place your tomcat directory into C:\]
     [Note: Install the jdk into C:\Program files\]
 

•    Sitting up Java Environment
    o    Install JDK
    o    After successful installation find the “BIN” directory within installation directory       [eg. C:\Program Files\Java\jdk1.6.0_26\bin]. Copy the full path and set the “PATH”
environment variable as the copied path; [eg. PATH=C: \Program Files\Java\jdk1.6.0_26\bin]      
                

 [Nb. How to set environment variable? Follow at last of this topic]

•    Setting up Apache
    o    CREATE three environment variables as JAVA_HOME, JRE_HOME,CATALINA_HOME
    o    Set path for JAVA_HOME as eg. C:\Program Files\Java\jdk1.6.0_26\
    o    Set path for JRE_HOME as eg. C:\Program Files\Java\jdk1.6.0_26\jre\
    o    Set path for CATALINA_HOME  as eg. C:\apache-tomcat-7.0.39-windows-x86\apache-tomcat-7.0.39

•    Setting up Servlet
    o    CREATE another environment variable as CLASSPATH
    o    Set the path for CLASSPATH as eg.        

C:\apache-tomcat-7.0.39-windows-x86\apache-tomcat-7.0.39\lib\servlet-api.jar

•    Reboot pc

•    Compile your first SERVLET with simple JAVAC command. [Eg. JAVAC HiServlet.Java]
•    If all steps performed correctly then the HiServlet.Java shall be generated as

FirstServlet.class.


=======================
YOUR FIRST SERVLET
=======================

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class HiServlet extends HttpServlet {

    public void doGet(HttpServletRequest request, HttpServletResponse response)
    throws IOException, ServletException
    {
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
        out.println("<html>");
        out.println("<head>");
        out.println("<title>Hi Servlet! www.wideit.blogspot.com From: Dibyendu</title>");
        out.println("</head>");
        out.println("<body>");
        out.println("<h1>Hi Servlet! www.wideit.blogspot.com From: Dibyendu</h1>");
        out.println("</body>");
        out.println("</html>");
    }
}

•    Run the compiled .class file on the WEB

     o  Place the HiServlet.class file into C:\apache-tomcat-7.0.39-windows-x86\apache-tomcat-7.0.39\webapps\examples\WEB-INF\classes\ folder

    o  Open the .XML file as web from c:\apache-tomcat-7.0.39-windows-x86\apache-tomcat-7.0.39\webapps\examples\WEB-INF\ folder with text editor (eg. notepad)

    o  Now Append or add following at the last of .XML file before </web-app>
 
    <servlet>
        <servlet-name>HiServlet</servlet-name>
        <servlet-class>HiServlet</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>HiServlet</servlet-name>
        <url-pattern>/servlets/servlet/HiServlet</url-pattern>
    </servlet-mapping>

    o Save and Close the file.
    o Start Apache Server [Execute the .bat file as c:\apache-tomcat-7.0.39-windows-x86\apache-tomcat-7.0.39\bin\startup.bat]
    o Open any web browser
    o Navigate http://localhost:8080/examples/servlets/servlet/HiServlet on address bar
    o You should see the content of the class file.
    o Enjoy

===============================
How to set environment variable?
===============================
Platform : Windows

    In windows, right click on your "My Computer" Icon >> Properties >> Advanced Tab >>

Click on "Environment Variables" button >> Look for "System Variables" >> Now you may ADD or

Modify existing one;
Labels:

Comments

Post a Comment

Popular posts from this blog

Setting up OpenGL environment for Microsoft Visual C++

Hi Friends, before starting the setting up OpenGL environment, please do the following first: 1.       Install Microsoft Visual C++ 6.0 (Comes with Ms Visual Studio 6.0) 2.       Download the file called “opengl95.exe” and “glutdlls.zip” from internet. [Just open browser-> navigate http://www.google.com -> type upper mentioned file name and search -> you will definitely find the appropriate link to download.] 3.       Run opengl95.exe file and it will be extracted and will be generated some files. Copy those files and 4.       Extract the file “glutdlls.zip” and it will also generate some more files. 5.       Now, combine all extracted files from two sources (opengl95.exe and glutdlls.zip) and place in one location. Setting up OpenGL environment for Microsoft Visual C++ With any system, you can start with a C\C++ compiler and install ...
Post a Comment
Read more

Exp/ Imp vs. ExpDP/ ImpDP in Oracle 10g

ORACLE Export (exp) vs Datapump (expdp)    ORACLE provides two external utilities to transfer database objects from one database to another database. Traditional exports (exp /imp) are introduced before 10g. Then from 10g, ORACLE introduced datapump (expdp / impdp) as an enhancement to traditional export utility. Traditional Export (exp/ imp) This is an ORACLE database external utility, which is used to transfer database objects from one database server to another database server. It allows transferring the database objects over different platforms, different hardware and software configurations. When an export command is executed on a database, database objects are extracted with their dependency objects. That means if it extracts a table, the dependences like indexes, comments, and grants are extracted and written into an export file (binary format dump file). Following is the command to export a full database, Cmd > exp userid=username/password@exportdb_...
Post a Comment
Read more

C Sample: String Concatenation In C Language

#include<stdio.h> #include<conio.h> #include<string.h> main() { char str1[30],str2[30]; printf("\nEnter 1st String"); gets(str1); printf("\nEnter 2nd String"); gets(str2); concat(str1,str2); printf("Output :: %s",str1); getch(); } concat(char *str1,char *str2) { while(*str1!='\0') str1++;      //Points to end of line while(*str2!='\0') { *str1=*str2; str1++; str2++; }*str1='\0'; }
Post a Comment
Read more