Forward & Redirect & Include

• JSP
  • Forward
    • Basic
      <jsp:forward page="이동할 페이지" />
      
      
    • Parameter 1
      <jsp:forward page="이동할 페이지">
           <jsp:param name="one" value="value1" />
           <jsp:param name="two" value="value2" />
      </jsp:forward>
      
      
    • Parameter 2
      request.setAttribute("파라미터 이름", "파라미터 값");
      <jsp:forward page="이동할 페이지" />
      
      
  • Redirect
    • Basic
      response.sendRedirect(String location);
      
      
    • Parameter 1
      <%
           String paramData = "jsp redirect";
           response.sendRedirect("move.jsp?" + paramData);
      %>
      
      
    • Parameter 2 (GET)
      <%@ page import="java.net.URLEncoder" %>
      <%
           String value ="parameter";
           String encodedValue = URLEncoder.encode(value);
           response.sendRedirect("move.jsp?name" + encodedValue);
      %>
      // 특수문자를 url에 포함시킬 때 필요한 코딩
      
      
  • Include
    • Include Directive tag
      <%@ include file="page.jsp" %>
      
      
    • Include Action tag
      <jsp:include page="공통내용.jsp" />
      
      • 파라미터 넘기기
        <jsp:include page="incl.jsp">
            <jsp:param name="year" value="sophomore"/>
        </jsp:include>
        
        
        
• Servlet
  • Forward
    RequestDispatcher dis = request.getRequestDispatcher("page.jsp");
    dis.forward(request, response);
    
    
  • Redirect
    response.sendRedirect("page.jsp");
    
    
  • Include
    RequestDispatcher dispatch = getServletContext().getRequestDispatcher("page.jsp");
    dispatcher.include(request, response);
    
    
  • Attribute Binding(Request에 속성 바인딩)
    • setAttribute(String name, Object obj)
      속성을 바인딩함
      
      
    • getAttribute(String name)
      바인딩된 속성을 얻어옴
      
      
    • removeAttribute(String name)
      바인딩 된 속성을 삭제함