package examples;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet("/LifecycleServlet")
public class LifecycleServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
public LifecycleServlet() {
System.out.println("LifecycleServle 생성!!");
}
public void init(ServletConfig config) throws ServletException {
System.out.println("init 호출!!");
}
public void destroy() {
System.out.println("destory 호출!!");
}
// Source -> Override/Implement Methods
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head><title>form</title></head>");
out.println("<body>");
out.println("<form method='post' action='/firstweb/LifecycleServlet'>");
out.println("name : <input type='text' name='name'><br>");
out.println("<input type='submit' value='ok'><br>");
out.println("</form>");
out.println("</body>");
out.println("</html>");
out.close();
}
// request : 요청이 들어왔을 때의 정보를 추상화 해서 갖고 있는 객체
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
String name = request.getParameter("name");
out.println("<h1> hello " + name + "</h1>");
out.close();
}
}
Enjoy to study