DdayServlet 실습

web.xml

 

<!-- 만난지 풀기 -->  <servlet>   <servlet-name>dday</servlet-name>   <servlet-class>dday.DdayServlet</servlet-class>  </servlet>  <servlet-mapping>   <servlet-name>dday</servlet-name>   <url-pattern>/dday.kh</url-pattern>  </servlet-mapping>

 

DdaySelvet.java

 

package dday; import java.io.*; import java.sql.*; import java.text.*; import java.util.*; import java.util.Date; import java.util.logging.*; import javax.servlet.*; import javax.servlet.http.*; public class DdayServlet extends HttpServlet {  @Override  protected void doPost(HttpServletRequest request,    HttpServletResponse response) throws ServletException, IOException {     String human1 = request.getParameter("human1");   String human2 = request.getParameter("human2");   String dp = request.getParameter("dp");   SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");   try {    Date startDate = sdf.parse(dp);    // 현재날짜 - startDate => 사귄 시간    long start = startDate.getTime();    // new Date().getTime();    long current = System.currentTimeMillis();    int result = (int) ((current - start) / 1000 / 60 / 60 / 24);    Calendar c = Calendar.getInstance();    c.setTime(startDate);    c.add(Calendar.DATE, 100);    response.setCharacterEncoding("euc-kr");    PrintWriter out = response.getWriter();    out.write(human1 + "씨와" + human2 + "씨가 ♡한지" + result + "일째~~");    String str = String.format(      "<h1>100일 되는 날 : %1$tY년 %1$tm월 %1$td일</h1>", c);   } catch (ParseException e) {    e.printStackTrace();   }  } }

 

index.jsp

 

<form action="/pp/dday.kh" method="post">    <input type="text" name="human1" /> ♡    <input type="text" name="human2" /> <br/>     우리 처음 만난날 <input type="text" id="dp" name="dp"/> <br/>     <input type="submit" value="우리 만난지 며칠?"/> </form>