Servlet Practice 1 : retrieving all request, response, header elements

Request Handling Practices :

Retrieve the request parameters:

Usage : This Will allow to Retrieve All the Associated Request Parameters:

String values[];String temp1="";

Enumeration Enum=request.getParameterNames();
while(Enum.hasMoreElements()){
temp1=(String) Enum.nextElement();
values=request.getParameterValues(temp1);
if(values!=null){
for(String str:values)
System.out.println("Name : "+temp1+" && Values : "+str);
}
}

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Retrieve the Header values:

Usage : This Will allow to Retrieve All the Associated Header Parameters:

String temp1="",temp2="";


Enumeration header=request.getHeaderNames();
while(header.hasMoreElements()){
temp1=(String) header.nextElement();
temp2=request.getHeader(temp1);
if(temp2!=null){
System.out.println(temp1+" && : "+temp2);
   }
}

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Setting Response Contents type:

Usage : This Will allow to set Response

PrintWriter out=response.getWriter();

response.setContentType("text/html");
out.println("<h1>Welcome "+firstname+"</h1><br><br>");
out.println("<h2>Your input Name : "+firstname+" "+lastname+"</h2>");
out.println("<h2>Ur Under "+category+" Category</h2>");

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