In this tutorial you will learn how to get request patameters from client
Getting Request Parameter From Client
To get parameters from client side getParameter("") method HttpServletRequest interface is called. The argument of this method is the name of your html input box. An example is given below.
home.html
<HTML> <HEAD> <TITLE>Getting Parameter Example</TITLE> </HEAD> <BODY bgcoclor=megenta> <form method="get" action="http://localhost:8080/param"> <center> <table border=1> <tr><td>Enter Your Name :</td> <td><input type="text" name="userId" value=""></td> </tr> <tr><td>Enter Your PassWord :</td> <td><input type="text" name="userPassWord" value=""></td> </tr> <tr><td><input type="submit" name="Submit" value="Submit"></td> <td><input type="reset" name="reset" value="Refresh"></td> <table> </center> </form> </BODY> </HTML>
GettingRequestFromClient.java
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 GettingRequestFromClient extends HttpServlet{
public void doGet(HttpServletRequest request, HttpServletResponse response)throws
IOException,ServletException{
PrintWriter out=response.getWriter();
response.setContentType("Text/Html");
String userId=request.getParameter("userId");
String userPassWord=request.getParameter("userPassWord");
out.println("<html>");
out.println("<body bgcolor=pink >");
out.println("<h1> Getting Parameter from User Example</h1>");
out.println("User Id is -" +userId);
out.println("User PassWord is -" + userPassWord);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)throws
IOException,ServletException{
doGet(request,response);
}
}
When you run this application it will display message as shown below:
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