Problema no código - URGENTE

Programação Java
#1

Estou tentando elaborar uma aplicação Java EE. Nesta aplicação eu preciso ter um (comboBox) para selecionar um CD um TextField para colocar a quantidade de CD’s e quando selecionar o que quero colocar tudo dentro de um carrinho de compra. (Tabela)

Alguém consegue me ajudar?

ProjectWeb - JSP

<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
<%@ taglib uri = "http://java.sun.com/jsp/jstl/core" prefix="c" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">

<title>Barão Music</title>
</head>
<body>

<h5>Music</h5>

<form action="ServletProject" method="get">

    <select name="code">
        <c:forEach items="${catalog}" var="cd">
            <option value="${cd.code}">${cd.title}</option>        
        </c:forEach>    
    </select>
    
    <input type="text" name="amount" value="0" size="1">
    <br>
    <input type="submit" value="Add to cart">
</form>
<br>
<c:choose>
    <c:when test="${emptyList eq true}">
        <h4> Shopping cart is empty</h4>
    </c:when>
    
    <c:otherwise>
    
    
    
    
        <table>
            <tr>
                <td>Title</td>
                <td>Author</td>
                <td>Money</td>
                <td>Amount</td>
                <td>Action</td>    
            </tr>
            <c:forEach items="${car}" var="cd">
                    <tr>
                        <td>${cd.title}</td>
                        <td>${cd.author}</td>
                        <td>${cd.money}</td>
                        <td>${cd.amount}</td>
                    </tr>    
            </c:forEach>
        </table>
    </c:otherwise>
</c:choose>
</body>
</html>


ServletProject.java - Servlet


import java.io.IOException;
import java.util.ArrayList;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import com.baraomusic.loja.webapp.bean.Item;


@WebServlet("/ServletProject")

public class ServletProject extends HttpServlet {
    
    private static final long serialVersionUID = 1L;
       
    public ServletProject() {
        super();
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //response.getWriter().append("Served at: ").append(request.getContextPath());
        processRequest(request, response);//Chamando o ProjectWeb
    }

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        doGet(request, response);
    }
    
    protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        
        HttpSession sessao = request.getSession(); //Pega a sessao do request
        
        ArrayList<Item> car = new ArrayList<Item>(); //ArrayList de Item para catálogo de carrinho de compras
        ArrayList<Item> catalog = new ArrayList<Item>();
        
        
        
        
        boolean emptyList = true;
        Item item = new Item();
        
        item = new Item(100, "Alex Skate Rock", "Alex", 45.90, 0);
        catalog.add(item);
        
        item = new Item(101, "Salomão do Reggae", "Salomão", 50.90, 0);
        catalog.add(item);
        
        item = new Item(102, "Diante do trono", "Patrícia", 60.0, 0);
        catalog.add(item);
        
        emptyList = car.isEmpty();
        sessao.setAttribute("emptyList", emptyList);
        sessao.setAttribute("car", car);
        sessao.setAttribute("catalog", catalog);
        response.sendRedirect("/ServletProjectTwo/ProjectWeb.jsp");
        
        
        }
    }


Adicionando no carrinho - Servlet

import java.io.IOException;
import java.util.ArrayList;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.baraomusic.loja.webapp.bean.Item;

@WebServlet("/AdicionaItemServlet")

public class AdicionaItemServlet extends HttpServlet {
    
    private static final long serialVersionUID = 1L;
       
 
    public AdicionaItemServlet() {
        super();
        
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        
        processRequest(request, response);
    }

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        
        doGet(request, response);
    }
    
    protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
        
        HttpSession sessao = request.getSession();
        
        ArrayList<Item> list = (ArrayList<Item>) sessao.getAttribute("list");
        ArrayList<Item> catalog = (ArrayList<Item>) sessao.getAttribute("catalog");
        
        int amount = Integer.parseInt(request.getParameter("amount"));
        int code = Integer.parseInt(request.getParameter("code"));
                
        boolean emptyList = Boolean.parseBoolean(request.getParameter("emptyList"));
        
        boolean itemAdded = false;
        
        Item item = new Item();
        
        
        for(Item temporaryOne: catalog){
            if(temporaryOne.getCode() == code){
                for(Item temporaryTwo: list){
                    if(temporaryTwo.getCode() == temporaryOne.getCode()){
                        temporaryTwo.setAmount(temporaryTwo.getAmount() + amount);
                        itemAdded = true;
                    }
                }
                
                if(!itemAdded && (amount != 0)){
                    item.setCode(temporaryOne.getCode());
                    item.setTitle(temporaryOne.getTitle());
                    item.setAuthor(temporaryOne.getAuthor());
                    item.setMoney(temporaryOne.getMoney());
                    item.setAmount(temporaryOne.getAmount());
                    
                    list.add(item);
                    itemAdded = true;
                }
            }
        }
        emptyList = list.isEmpty();
        sessao.setAttribute("emptyList", emptyList);
        response.sendRedirect("/ServletProjectTwo/ProjectWeb");
    }

}


Item - Classe java

package com.baraomusic.loja.webapp.bean;

public class Item {

    private String CD;
    private int amount;
    private String music;
    private String title;
    private int code;
    private String author;
    private double modey;
    
    
    public String getCD(){
        return CD;
    }
    public void setCD(String CD){
        this.CD = CD;
    }
    
    public int getAmount(){
        return amount;
    }
    
    public void setAmount(int amount){
        this.amount = amount;
    }

    public String getMusic(){
        return music;
    }
    
    public void setMusic(String music){
        this.music = music;
    }
    
    public String getTitle(){
        return title;
    }
    
    public void setTitle(String title){
        this.title = title;
    }
    
    public int getCode(){
        return code;
    }
    
    public void setCode(int code){
        this.code = code;
    }
    
    public String getAuthor(){
        return author;
    }
    
    public void setAuthor(String author){
        this.author = author;
    }
    
    public double getMoney(){
        return modey;
    }
    
    public void setMoney(double money){
        this.modey = money;
    }
    
    public Item(int code, String music, String author, double money, int amount){
        
        this.code = code;
        this.music = music;
        this.author = author;
        this.modey = money;
        this.amount = amount;
        
    }
    
    public Item(){
        
        super();
    }
    
    
}

Problema

Out 20, 2016 9:44:20 PM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre7\bin;C:\windows\Sun\Java\bin;C:\windows\system32;C:\windows;C:\Program Files\IBM\WebSphere MQ\java\lib;C:\Program Files\IBM\WebSphere MQ\java\lib64;C:\windows\system32;C:\windows;C:\windows\System32\Wbem;C:\windows\System32\WindowsPowerShell\v1.0;C:\Program Files\IBM\Infoprint Select;C:\Program Files (x86)\IBM\Personal Communications;C:\Program Files (x86)\IBM\Trace Facility;C:\Program Files\IBM\WebSphere MQ\bin64;C:\Program Files\IBM\WebSphere MQ\bin;C:\Program Files\IBM\WebSphere MQ\tools\c\samples\bin;.
Out 20, 2016 9:44:20 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property ‘source’ to ‘org.eclipse.jst.jee.server:ServletProjectTwo’ did not find a matching property.
Out 20, 2016 9:44:20 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler [“http-bio-8080”]
Out 20, 2016 9:44:20 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler [“ajp-bio-8009”]
Out 20, 2016 9:44:20 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 994 ms
Out 20, 2016 9:44:20 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Out 20, 2016 9:44:20 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.47
Out 20, 2016 9:44:21 PM org.apache.catalina.util.SessionIdGenerator createSecureRandom
INFO: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [148] milliseconds.
Out 20, 2016 9:44:21 PM org.apache.catalina.loader.WebappClassLoader validateJarFile
INFO: validateJarFile(C:\Java.metadata.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\ServletProjectTwo\WEB-INF\lib\javax.servlet-api-3.1.0.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
Out 20, 2016 9:44:21 PM org.apache.catalina.loader.WebappClassLoader validateJarFile
INFO: validateJarFile(C:\Java.metadata.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\ServletProjectTwo\WEB-INF\lib\javax.servlet.jsp.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/el/Expression.class
Out 20, 2016 9:44:21 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler [“http-bio-8080”]
Out 20, 2016 9:44:21 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler [“ajp-bio-8009”]
Out 20, 2016 9:44:21 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 1075 ms

#2

Esse aí é só o log de inicialização do TomCat, qual é o problema que você está enfrentando?

#3

Não consigo popular o vetor e fazer ele aparecer no comboBox.