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- Servlet Parameter
- Form 태그의 submit 버튼을 클릭하여 데이터를 서버로 전송하면, 해당파일(Servlet)에서는 HttpServletRequest객체를 이용하여 Parameter값을 얻을 수 있다.
<!DOCTYPE html>
<html>
<head>
<meta charset="EUC-KR">
<title>Insert title here</title>
</head>
<body>
<form action="FormEx" method = "post">
이름 : <input type="text" name="name" size = "10"><br>
아이디 : <input type="text" name="id" size = "10"><br>
비밀번호 : <input type="password" name="pw" size = "10"><br>
취미 : <input type="checkbox" name = "hobby" value = "read"> 독서
<input type="checkbox" name = "hobby" value = "cook"> 요리
<input type="checkbox" name = "hobby" value = "run"> 조깅
<input type="checkbox" name = "hobby" value = "swim"> 수영
<input type="checkbox" name = "hobby" value = "sleep"> 취침 <br>
<input type="radio" name = "major" value = "kor"> 국어
<input type="radio" name = "major" value = "eng" checked="checked"> 영어
<input type="radio" name = "major" value = "mat"> 수학
<input type="radio" name = "major" value = "des"> 디자인 <br>
<select name = "protocol">
<option value="http">http</option>
<option value="ftp">ftp</option>
<option value="smtp">smtp</option>
<option value="pop">pop</option>
</select><br>
<input type="submit" value="전송"><input type="reset" value="초기화">
</form>
</body>
</html>package com.javalec.ex;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Arrays;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class FormEx
*/
@WebServlet("/FormEx")
public class FormEx extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public FormEx() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.getWriter().append("Served at: ").append(request.getContextPath());
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
System.out.println("doPost");
String id = request.getParameter("id");
String pw = request.getParameter("pw");
String[] hobbys = request.getParameterValues("hobby");
String major = request.getParameter("mojor");
String protocol = request.getParameter("protocol");
response.setContentType("text/html; charset = EUC-KR");
PrintWriter writer = response.getWriter();
writer.println("<html><head></head><body>");
writer.println("아이디 : " + id + "<br/>");
writer.println("비밀번호 : " + pw + "<br/>");
writer.println("취미 : " + Arrays.toString(hobbys) + "<br/>");
writer.println("전공 : " + major + "<br/>");
writer.println("프로토콜 : " + protocol);
writer.println("</body></html>");
writer.close();
}
}
- 한글처리
1. Get방식 요청 -> server.xml 수정
<Connector connectionTimeout="20000" port="8181" protocol="HTTP/1.1" redirectPort="8443"/><Connector URIEncoding = "EUC-KR" connectionTimeout="20000" port="8181" protocol="HTTP/1.1" redirectPort="8443"/>
2. Post 방식 요청 -> request.setCharacterEncoding() 메소드 이용
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
System.out.println("doPost");
request.setCharacterEncoding("EUC-KR");
String name = request.getParameter("name");
String id = request.getParameter("id");
String pw = request.getParameter("pw");
String[] hobbys = request.getParameterValues("hobby");
String major = request.getParameter("mojor");
String protocol = request.getParameter("protocol");
response.setContentType("text/html; charset = EUC-KR");
PrintWriter writer = response.getWriter();
writer.println("<html><head></head><body>");
writer.println("이름 : " + name + "<br/>");
writer.println("아이디 : " + id + "<br/>");
writer.println("비밀번호 : " + pw + "<br/>");
writer.println("취미 : " + Arrays.toString(hobbys) + "<br/>");
writer.println("전공 : " + major + "<br/>");
writer.println("프로토콜 : " + protocol);
writer.println("</body></html>");
writer.close();
}
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