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1212 - 1213 servlet 정리 및 심화

이브마드 2019. 12. 12. 17:28
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<?xml version="1.0" encoding="UTF-8"?>
id="WebApp_ID" version="3.1">
  <display-name>babyServlet</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
  <servlet>
    <servlet-name>HiServlet(/파일이름)</servlet-name>
    <servlet-class>a.b.c.HiServlet(/패키지가 포함된 파일이름)</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>HiServlet(/파일이름)</servlet-name>
    <url-pattern>/aaaa(별명= 새로운 경로)</url-pattern>
  </servlet-mapping>
</web-app>
 
  

web.xml에서 다른페이지로 이동할 경로 설정하기

 

-------------------------------------------

 

FormHtml.html

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<%@ page language="java" contentType="text/html; charset=EUC-KR"
    pageEncoding="EUC-KR"%>
 
<%@ page import = "java.util.ArrayList" %>
<%@ page import = "java.util.HashMap" %>
<%@ page import = "java.util.Iterator" %>
    
<%
    request.setCharacterEncoding("EUC-KR");
%>
 
<!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=EUC-KR">
        <title colspan = "16" align = "center">주문 양식</title>
        <style type = "text/css"></style>
    
    </head>
 
    <body>
    <%
        Object obj = request.getAttribute("aList");//오브젝트로 받아옴
        System.out.println("obj >>> : " +  obj);
        out.print("obj >>> : " + obj);
        
        if(obj != null){
            ArrayList<String> aList = (ArrayList<String>)obj;
            
            if( 0 < aList.size()){
                    String formName = aList.get(0);
                    String formAddress = aList.get(1);
                    String formCountry = aList.get(2);
                    String formDeliveryMethod = aList.get(3);
                    String formInsruction = aList.get(4);
                    String formCatalogRequest = aList.get(5);
    
                    out.println(formName);
                    out.println(formCountry);
                    out.println(formDeliveryMethod);
                    out.println(formAddress);
                    out.println(formInsruction);
                    out.println(formCatalogRequest);
 
 
%>
        <center>
        
        <table border = "1" align = "center">
        <tr>
            <td colspan = "16" align = "center"><h3>주문양식</h3></td>
          </tr>
          <tr>
            <td align = "center">이름</td>
            <td><input size ="10" value=<%=formName%>></td>
          </tr>
          <tr>
            <td align = "center">주소</td>
            <td><textarea cols ="30" rows = "10" ><%=formAddress%></textarea></td>
          </tr>
          <tr>
            <td align = "center">국가</td>
            <td><textarea ><%=formCountry%></textarea>
            </td>
          </tr>
          <tr>
                <td align = "center">배송 방법</td>
                <td>
                <input value=<%=formDeliveryMethod%>>
            </td>
          </tr>
          <tr>
                <td align = "center">배송유의사항</td>
                <td><textarea  cols ="30" rows = "10 "><%=formInsruction%></textarea></td>
          </tr>
 
          <tr>
                <td colspan = "2" align = "center">제품 카탈로그 요청 여부
                <input value=<%=formCatalogRequest%>></td>
          </tr>
         </table>
             
 
         <tr><td><h3>Debug Info</h3></td>
          </tr>
        <tr>
<%
            HashMap<String, String> hm = new HashMap<String, String>();
            hm.put("address", formAddress);
            hm.put("deliveryMethod", formDeliveryMethod);
            hm.put("name",formName);
            hm.put("catalogRequest" ,formCatalogRequest);
            hm.put("insruction",formInsruction);
            hm.put("formCountry",formCountry);
 
            Iterator keys = hm.keySet().iterator();
            while (keys.hasNext()){
                String key = (String)keys.next();
                String value = (String)hm.get(key);
%>
 
              <td><%=key%> : <%=value%><br></td>
          </tr>
<%
        }
%>
 
    </center>
<% 
            }else{
                out.print("정보의 길이가 없음");
            }
    }else{
     out.print("들어온 정보 없음");
    }
 
%>
    </body>
</html>
 

 

FormServlet.java

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package bitcamp.java142.ch6;
 
 
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
 
/**
 * Servlet implementation class TodayMenu
 */
@WebServlet("/FormServlet")
public class FormServlet extends HttpServlet {
 
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("EUC-KR");
        response.setContentType("text/html;charset=EUC-KR");
        
        PrintWriter out = response.getWriter();
        
        out.println("<html>");
        out.println("<head><title>배송결과</title></head>");
 
        //배열length / 어레이리스트 size
            
        String formName = request.getParameter("name");
        String formAddress = request.getParameter("address");
        String formCountry  = request.getParameter("country");
        String formDeliveryMethod = request.getParameter("deliveryMethod");
 
        String[] formInsructions = request.getParameterValues("insruction");
        
        String formInsruction = "";
        int instructionLength = formInsructions.length;
        for(int i=0 ; i<instructionLength; i++){
            formInsruction = formInsruction + formInsructions[i];
            formInsruction = formInsruction + "<br>";
            
        }
        
        String formCatalogRequest = request.getParameter("catalogRequest");
        if(formCatalogRequest == null){
            formCatalogRequest = "아니오";
        }else if(formCatalogRequest.equals("예")){
            formCatalogRequest = "예";
        }
        
        ArrayList<String> aList = new ArrayList<String>();
        aList.add(formName);
        aList.add(formAddress);
        aList.add(formCountry);
        aList.add(formDeliveryMethod);
        aList.add(formInsruction);
        aList.add(formCatalogRequest);
        
        
    
        request.setAttribute("aList", aList);
        
        RequestDispatcher rd = request.getRequestDispatcher("/jsp/FormJsp.jsp");
        rd.forward(request, response);
        
        
    }
 
}
 
 

 

 

FormJsp.jsp

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<%@ page language="java" contentType="text/html; charset=EUC-KR"
    pageEncoding="EUC-KR"%>
 
<%@ page import = "java.util.ArrayList" %>
<%@ page import = "java.util.HashMap" %>
<%@ page import = "java.util.Iterator" %>
    
<%
    request.setCharacterEncoding("EUC-KR");
%>
 
<!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=EUC-KR">
        <title colspan = "16" align = "center">주문 양식</title>
        <style type = "text/css"></style>
    
    </head>
 
    <body>
    <%
        Object obj = request.getAttribute("aList");//오브젝트로 받아옴
        System.out.println("obj >>> : " +  obj);
        out.print("obj >>> : " + obj);
        
        if(obj != null){
            ArrayList<String> aList = (ArrayList<String>)obj;
            
            if( 0 < aList.size()){
                    String formName = aList.get(0);
                    String formAddress = aList.get(1);
                    String formCountry = aList.get(2);
                    String formDeliveryMethod = aList.get(3);
                    String formInsruction = aList.get(4);
                    String formCatalogRequest = aList.get(5);
    
                    out.println(formName);
                    out.println(formCountry);
                    out.println(formDeliveryMethod);
                    out.println(formAddress);
                    out.println(formInsruction);
                    out.println(formCatalogRequest);
 
 
%>
        <center>
        
        <table border = "1" align = "center">
        <tr>
            <td colspan = "16" align = "center"><h3>주문양식</h3></td>
          </tr>
          <tr>
            <td align = "center">이름</td>
            <td><input size ="10" value=<%=formName%>></td>
          </tr>
          <tr>
            <td align = "center">주소</td>
            <td><textarea cols ="30" rows = "10" ><%=formAddress%></textarea></td>
          </tr>
          <tr>
            <td align = "center">국가</td>
            <td><textarea ><%=formCountry%></textarea>
            </td>
          </tr>
          <tr>
                <td align = "center">배송 방법</td>
                <td>
                <input value=<%=formDeliveryMethod%>>
            </td>
          </tr>
          <tr>
                <td align = "center">배송유의사항</td>
                <td><textarea  cols ="30" rows = "10 "><%=formInsruction%></textarea></td>
          </tr>
 
          <tr>
                <td colspan = "2" align = "center">제품 카탈로그 요청 여부
                <input value=<%=formCatalogRequest%>></td>
          </tr>
         </table>
             
 
         <tr><td><h3>Debug Info</h3></td>
          </tr>
        <tr>
<%
            HashMap<String, String> hm = new HashMap<String, String>();
            hm.put("address", formAddress);
            hm.put("deliveryMethod", formDeliveryMethod);
            hm.put("name",formName);
            hm.put("catalogRequest" ,formCatalogRequest);
            hm.put("insruction",formInsruction);
            hm.put("formCountry",formCountry);
 
            Iterator keys = hm.keySet().iterator();
            while (keys.hasNext()){
                String key = (String)keys.next();
                String value = (String)hm.get(key);
%>
 
              <td><%=key%> : <%=value%><br></td>
          </tr>
<%
        }
%>
 
    </center>
<% 
            }else{
                out.print("정보의 길이가 없음");
            }
    }else{
     out.print("들어온 정보 없음");
    }
 
%>
    </body>
</html>

 

 

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