java servlet Archives

How to get multiple parameters in ServletContext

September 22, 2023September 22, 2023 by manish

index.html

        <title>Servlet Context Multiple Parameters</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
    
    

<h1>Servlet Context Multiple Parameters</h1>

        <a href="get-servlet-context">Get Multiple  parameters in servlet context</a>

<title>Servlet Context Multiple Parameters</title>

<h1>Servlet Context Multiple Parameters</h1>

<a href="get-servlet-context">Get Multiple parameters in servlet context</a>

web.xml

<!--?xml version="1.0" encoding="UTF-8"?-->
<web-app version="3.1" 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_3_1.xsd">
    <context-param>
        <param-name>SiteName</param-name>
        <param-value>Ebhor.com</param-value>
    </context-param>
    <context-param>
        <param-name>Description</param-name>
        <param-value>Provides free tutorials</param-value>
    </context-param>
    <servlet>
        <servlet-name>ServletContext</servlet-name>
        <servlet-class>ebhor.servlet.ServletContext</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>ServletContext</servlet-name>
        <url-pattern>/get-servlet-context</url-pattern>
    </servlet-mapping>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
</web-app>

<web-app version="3.1" 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_3_1.xsd">

<context-param>

<param-name>SiteName</param-name>

<param-value>Ebhor.com</param-value>

</context-param>

<context-param>

<param-name>Description</param-name>

<param-value>Provides free tutorials</param-value>

</context-param>

<servlet-name>ServletContext</servlet-name>

<servlet-class>ebhor.servlet.ServletContext</servlet-class>

</servlet>

<servlet-mapping>

<servlet-name>ServletContext</servlet-name>

<url-pattern>/get-servlet-context</url-pattern>

</servlet-mapping>

<session-config>

<session-timeout>

</session-timeout>

</session-config>

</web-app>

ServletContext.java

package ebhor.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Enumeration;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


public class ServletContext extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html");
        Enumeration<string> params = getServletContext().getInitParameterNames();
        PrintWriter out = response.getWriter();
        out.println("
<h1>Getting multiple servlet context</h1>
");
        while (params.hasMoreElements()) {
            String name = params.nextElement();
            String value = getServletContext().getInitParameter(name);
            out.println("
<h2>" + name + ": " + value + "</h2>
");
        }

    }
}

</string>

package ebhor.servlet;

import java.io.IOException;

import java.io.PrintWriter;

import java.util.Enumeration;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

public class ServletContext extends HttpServlet {

@Override

protected void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

response.setContentType("text/html");

Enumeration<string> params = getServletContext().getInitParameterNames();

PrintWriter out = response.getWriter();

out.println("

<h1>Getting multiple servlet context</h1>

");

while (params.hasMoreElements()) {

String name = params.nextElement();

String value = getServletContext().getInitParameter(name);

out.println("

<h2>" + name + ": " + value + "</h2>

");

}

</string>

Results Read More How to access ServletContext parameters How to access ServletConfig initial parameter value

How to access ServletContext parameters

August 26, 2023August 26, 2023 by manish

index.html

        <title>Servlet Context Example</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
    
    

<h3>Servlet Context Example</h3>

        <a href="get-servlet-context">Call Servlet1</a>
        <a href="get-context">Call Servlet2</a>

<title>Servlet Context Example</title>

<h3>Servlet Context Example</h3>

<a href="get-servlet-context">Call Servlet1</a>

<a href="get-context">Call Servlet2</a>

web.xml

<!--?xml version="1.0" encoding="UTF-8"?-->
<web-app version="3.1" 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_3_1.xsd">
    <context-param>
        <param-name>SiteName</param-name>
        <param-value>Ebhor.com</param-value>
    </context-param>
    <servlet>
        <servlet-name>ServletContext</servlet-name>
        <servlet-class>ebhor.servlet.ServletContext</servlet-class>
    </servlet>
    <servlet>
        <servlet-name>ServletContext1</servlet-name>
        <servlet-class>ebhor.servlet.ServletContext1</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>ServletContext</servlet-name>
        <url-pattern>/get-servlet-context</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>ServletContext1</servlet-name>
        <url-pattern>/get-context</url-pattern>
    </servlet-mapping>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
</web-app>

<context-param>

<param-name>SiteName</param-name>

<param-value>Ebhor.com</param-value>

</context-param>

<servlet-name>ServletContext</servlet-name>

<servlet-class>ebhor.servlet.ServletContext</servlet-class>

</servlet>

<servlet-name>ServletContext1</servlet-name>

<servlet-class>ebhor.servlet.ServletContext1</servlet-class>

</servlet>

<servlet-mapping>

<servlet-name>ServletContext</servlet-name>

<url-pattern>/get-servlet-context</url-pattern>

</servlet-mapping>

<servlet-mapping>

<servlet-name>ServletContext1</servlet-name>

<url-pattern>/get-context</url-pattern>

</servlet-mapping>

<session-config>

<session-timeout>

</session-timeout>

</session-config>

</web-app>

ServletContext.java

package ebhor.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class ServletContext extends HttpServlet {
   
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
       response.setContentType("text/html");
       String value=getServletContext().getInitParameter("SiteName");
       PrintWriter out=response.getWriter();
         out.println("At ServletContext servlet ");
       out.println("
<h2>Site Name is "+value+"</h2>
");
    }

   
}

package ebhor.servlet;

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

public class ServletContext extends HttpServlet {

@Override

protected void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

response.setContentType("text/html");

String value=getServletContext().getInitParameter("SiteName");

PrintWriter out=response.getWriter();

out.println("At ServletContext servlet ");

out.println("

<h2>Site Name is "+value+"</h2>

");

}

ServletContext1.java

package ebhor.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


public class ServletContext1 extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html");
        String value = getServletContext().getInitParameter("SiteName");
        PrintWriter out = response.getWriter();
        out.println("At ServletContext1 servlet ");
        out.println("
<h2>Site Name is " + value + "</h2>
");
    }
}

package ebhor.servlet;

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

public class ServletContext1 extends HttpServlet {

@Override

protected void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

response.setContentType("text/html");

String value = getServletContext().getInitParameter("SiteName");

PrintWriter out = response.getWriter();

out.println("At ServletContext1 servlet ");

out.println("

<h2>Site Name is " + value + "</h2>

");

}

Results