Multiple Submit Button Test App
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This document describes a web application that contains code for a servlet class (SubmitSrv.java), an HTML file (Index.html), and a web application deployment descriptor (web.xml). The servlet handles requests from the HTML form and performs basic arithmetic operations or displays system properties based on the submitted parameter. The HTML form contains fields to accept two numbers and submit buttons to trigger addition, subtraction, or multiplication in the servlet. It also contains links to trigger displaying system properties or date in the servlet. The web.xml file maps the servlet class and URL pattern.
Multiple Submit Button Test App
- 1. Multiple Submit Button Test App Contains: 1. SubmitSrv.java 2. Index.html 3. web.xml note: it is a web app so use the codes by forming web-modules and paste the codes there and enjoy. 1. SubmitSrv.java codes package com.nt; importjava.io.IOException; importjava.io.PrintWriter; importjava.util.Date; importjava.util.Properties; importjavax.servlet.ServletException; importjavax.servlet.annotation.WebServlet; importjavax.servlet.http.HttpServlet; importjavax.servlet.http.HttpServletRequest; importjavax.servlet.http.HttpServletResponse; /** * ServletimplementationclassSubmitSrv */ @WebServlet("/SubmitSrv") publicclassSubmitSrvextendsHttpServlet{ private staticfinal longserialVersionUID=1L; /**
- 2. * Defaultconstructor. */ publicSubmitSrv() { //TODO Auto-generatedconstructorstub } /** * @see HttpServlet#doGet(HttpServletRequestrequest,HttpServletResponse response) */ publicvoiddoGet(HttpServletRequestrequest,HttpServletResponse response) throws ServletException,IOException{ //general setings PrintWriterpw=response.getWriter(); response.setContentType("text/html"); //requestprocessinglogicfordifferentoperations Stringpval=request.getParameter("s1"); //logicforseparate submit execution if(pval.equals("ADD")){ intval1=Integer.parseInt(request.getParameter("t1")); intval2=Integer.parseInt(request.getParameter("t2")); pw.println("Additionis:"+(val1+val2)); } else if(pval.equals("SUB")){ intval1=Integer.parseInt(request.getParameter("t1")); intval2=Integer.parseInt(request.getParameter("t2")); pw.println("Additionis:"+(val1-val2)); } else if(pval.equals("MUL")){ intval1=Integer.parseInt(request.getParameter("t1")); intval2=Integer.parseInt(request.getParameter("t2")); pw.println("Additionis:"+(val1*val2));
- 3. } else if(pval.equals("link1")){ pw.println(System.getProperties()); } else{ pw.println(newDate()); } //close stream pw.close(); } /** * @see HttpServlet#doPost(HttpServletRequestrequest,HttpServletResponseresponse) */ publicvoiddoPost(HttpServletRequestrequest,HttpServletResponseresponse)throws ServletException,IOException{ doGet(request,response); } } Index.html codes <!DOCTYPE html> <html> <head> <meta charset="ISO-8859-1"> <title>Insert title here</title> </head>
- 4. <body> <form action="surl"> <div align="center"> <table> <tr> <td>Value 1: <input type="text" name="t1"><br></br> Value 2: <input type="text" name="t2"><br></br></td> </tr> <tr align="center"> <td> <input type="submit" name="s1" value="ADD"> <input type="submit" name="s1" value="SUB"> <input type="submit" name="s1" value="MUL"> </td> </tr> <tr> <td><a href="surl?s1=link1">System Properties</a> <a href="surl?s1=link2">System Date</a> </td> </tr> </table> </div> </form>
- 5. </body> </html> Web.xml codes <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema- instance" xmlns:web="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <display-name>MultipleSubmitBtnTestApp</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> </welcome-file-list> <servlet> <servlet-name>testapp</servlet-name> <servlet-class>com.nt.SubmitSrv</servlet-class> </servlet> <servlet-mapping> <servlet-name>testapp</servlet-name> <url-pattern>/surl</url-pattern> </servlet-mapping> </web-app>