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JerinFrancisAJerinFrancisA
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jerryJSP
1 parent 4b03dd7 commit df9cdd1

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6 files changed

+142
-1
lines changed

6 files changed

+142
-1
lines changed

‎ScientificCalculator.jsp‎

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<%@ page language="java" contentType="text/html; charset=UTF-8"
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pageEncoding="UTF-8"%>
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title>Scientific Calculator</title>
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</head>
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<body>
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Calculator<br><br>
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<form action="ScientificCalculator.jsp">
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<input type="text" name="num" value="0">Enter Number
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<input type="submit" value="sin()" name="op">
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<input type="submit" value="cos()" name="op">
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<input type="submit" value="tan()" name="op">
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<input type="submit" value="log()" name="op">
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<input type="submit" value="()^1/2" name="op">
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</form>
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<%
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try{int n = Integer.parseInt(request.getParameter("num"));
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String op = request.getParameter("op");
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if(op.equals("sin()"))
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out.print(Math.sin(n));
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if(op.equals("cos()"))
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out.print(Math.cos(n));
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if(op.equals("tan()"))
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out.print(Math.tan(n));
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if(op.equals("log()"))
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out.print(Math.log(n));
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if(op.equals("()^1/2"))
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out.print(Math.sqrt(n));}catch(Exception e){}
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%>
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</body>
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</html>

‎ServletBC.java‎

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import java.io.IOException;
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import java.sql.*;
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import javax.servlet.ServletException;
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import javax.servlet.annotation.WebServlet;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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/**
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* Servlet implementation class ServletBC
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*/
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@WebServlet("/ServletBC")
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public class ServletBC extends HttpServlet {
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private static final long serialVersionUID = 1L;
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/**
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* @see HttpServlet#HttpServlet()
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*/
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public ServletBC() {
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super();
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// TODO Auto-generated constructor stub
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}
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/**
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* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
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*/
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protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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// TODO Auto-generated method stub
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try {
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Class.forName("com.mysql.jdbc.Driver");
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Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/stud", "root", "");
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Statement stmt = con.createStatement();
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ResultSet rs = stmt.executeQuery("SELECT * FROM STUDENT WHERE USN='"+request.getParameter("usn")+"'");
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while(rs.next()) {
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System.out.println(rs.getInt(1) + " " + rs.getString(2));
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}
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} catch (Exception e) {
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// TODO: handle exception
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}
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}
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}

‎UsnQuery.html‎

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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title>Insert title here</title>
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</head>
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<body>
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<h3>USN QUERY</h3>
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<form action="ServletBC" method="GET">
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<input type="text" name="usn">
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<input type="submit" value="QUERY">
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</form>
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</body>
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</html>

‎VisitHome.html‎

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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title>Visitor Count</title>
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</head>
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<body>
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<h1>VISIT COUNT</h1>
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<form action="VisitorCount" method="GET">
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UN <input type="text" name="us"><br><br>
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PW <input type="text" name="pw"><br><br>
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<input type="submit" value="GO">
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</form>
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</body>
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</html>

‎VisitorCount.java‎

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import java.io.IOException;
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import java.io.PrintWriter;
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import javax.servlet.ServletException;
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import javax.servlet.annotation.WebServlet;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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@WebServlet("/VisitorCount")
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public class VisitorCount extends HttpServlet {
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private static final long serialVersionUID = 1L;
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public VisitorCount() {
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super();
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}
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protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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try {
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PrintWriter p = response.getWriter();
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response.setContentType("text/html");
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String un = request.getParameter("us");
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String pw = request.getParameter("pw");
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if(un.equals("ash") && pw.equals("123")) {
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p.println("SUCCSEESESE");
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}
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else {
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p.print("LOGIN SFAil");
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}
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} catch(Exception e) {}
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}
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}

‎web.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" id="WebApp_ID" version="4.0">
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<display-name>JerryLets</display-name>
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<display-name>jerry_jsp</display-name>
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<welcome-file-list>
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<welcome-file>index.html</welcome-file>
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<welcome-file>index.htm</welcome-file>

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