JSP mvc 패턴
M : 데이터(DB)
V : jsp
C : servlet
HelloWorldServlet.java
package com.exServlet.demo;
import java.io.IOException;
import java.io.PrintWriter;
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 HelloWorldServlet
*/
@WebServlet("/HelloWorldServlet")
public class HelloWorldServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public HelloWorldServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//기존내용// TODO Auto-generated method stub
// response.getWriter().append("Served at: ").append(request.getContextPath());
//1. response content type 정하기
response.setContentType("text/html");
//2. printWriter 가져오기
PrintWriter out = response.getWriter();
//3. HTML 콘텐츠 설정하기
out.println("<html><body>");
out.println("<h2>Hello World</h2>");
out.println("<hr>");
out.println("Time on the server is : " + new java.util.Date());
out.println("</body></html>");
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
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